Fixing merge anchor key order

also add a unit test for func FormatStringFromFilename to cover such case

.dockerignore

@@ -0,0 +1 @@
+bin/*

.github/FUNDING.yml

@@ -0,0 +1 @@
+github: mikefarah

.github/ISSUE_TEMPLATE/bug_report_v4.md

@@ -0,0 +1,51 @@
+---
+name: Bug report - V4
+about: Create a report to help us improve
+title: ''
+labels: bug, v4
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+Note that any how to questions should be posted in the discussion board and not raised as an issue.
+
+Version of yq: 4.X.X
+Operating system: mac/linux/windows/....
+Installed via: docker/binary release/homebrew/snap/...
+
+**Input Yaml**
+Concise yaml document(s) (as simple as possible to show the bug, please keep it to 10 lines or less)
+data1.yml:
+```yaml
+this: should really work
+```
+
+data2.yml:
+```yaml
+but: it strangely didn't
+```
+
+**Command**
+The command you ran:
+```
+yq eval-all 'select(fileIndex==0) | .a.b.c' data1.yml data2.yml
+```
+
+**Actual behavior**
+
+```yaml
+cat: meow
+```
+
+**Expected behavior**
+
+```yaml
+this: should really work
+but: it strangely didn't
+```
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,42 @@
+---
+name: Feature request - V4
+about: Suggest an idea for this project
+title: ''
+labels: enhancement, v4
+assignees: ''
+
+---
+
+**Please describe your feature request.**
+A clear and concise description of what the request is and what it would solve. 
+Eg. I wish I could use yq to [...]
+
+Note:
+- how to questions should be posted in the discussion board and not raised as an issue.
+- V3 will no longer have any enhancements.
+
+**Describe the solution you'd like**
+If we have data1.yml like:
+(please keep to around 10 lines )
+
+```yaml
+country: Australia
+```
+
+And we run a command:
+
+```bash
+yq 'predictWeatherOf(.country)'
+```
+
+it could output
+
+```yaml
+temp: 32
+```
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/dependabot.yml

@@ -0,0 +1,22 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: docker
+    directory: /
+    schedule:
+      day: thursday
+      interval: weekly
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      day: thursday
+      interval: weekly
+  - package-ecosystem: gomod
+    directory: /
+    schedule:
+      day: thursday
+      interval: weekly

.github/workflows/codeql.yml

@@ -0,0 +1,70 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ master ]
+  schedule:
+    - cron: '24 3 * * 1'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'go' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v3
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3

.github/workflows/docker-release.yml

@@ -0,0 +1,100 @@
+name: Release Docker
+
+on:
+  release:
+    types: [released]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  publishDocker:
+    environment: dockerhub
+    env:
+      IMAGE_NAME: mikefarah/yq
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: all
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          version: latest
+
+      - name: Available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }} && docker version
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push image
+        run: |
+          echo "GithubRef: ${GITHUB_REF}"
+          VERSION=${GITHUB_REF##*/}
+          echo "VERSION: ${VERSION}"
+          IMAGE_VERSION=${VERSION:1}
+          echo "IMAGE_VERSION: ${IMAGE_VERSION}"
+
+          PLATFORMS="linux/amd64,linux/ppc64le,linux/arm64,linux/arm/v7,linux/s390x"
+
+          echo "Building and pushing version ${IMAGE_VERSION} of image ${IMAGE_NAME}"
+          docker buildx build \
+            --label "org.opencontainers.image.authors=https://github.com/mikefarah/yq/graphs/contributors" \
+            --label "org.opencontainers.image.created=$(date --rfc-3339=seconds)" \
+            --label "org.opencontainers.image.description=yq is a portable command-line data file processor" \
+            --label "org.opencontainers.image.documentation=https://mikefarah.gitbook.io/yq/" \
+            --label "org.opencontainers.image.licenses=MIT" \
+            --label "org.opencontainers.image.revision=$(git rev-parse HEAD)" \
+            --label "org.opencontainers.image.source=https://github.com/mikefarah/yq" \
+            --label "org.opencontainers.image.title=yq" \
+            --label "org.opencontainers.image.url=https://mikefarah.gitbook.io/yq/" \
+            --label "org.opencontainers.image.version=${IMAGE_VERSION}" \
+            --platform "${PLATFORMS}" \
+            --pull \
+            --push \
+            -t "${IMAGE_NAME}:${IMAGE_VERSION}" \
+            -t "${IMAGE_NAME}:4" \
+            -t "${IMAGE_NAME}:latest" \
+            -t "ghcr.io/${IMAGE_NAME}:${IMAGE_VERSION}" \
+            -t "ghcr.io/${IMAGE_NAME}:4" \
+            -t "ghcr.io/${IMAGE_NAME}:latest" \
+            .
+
+          cd github-action
+          docker buildx build \
+            --label "org.opencontainers.image.authors=https://github.com/mikefarah/yq/graphs/contributors" \
+            --label "org.opencontainers.image.created=$(date --rfc-3339=seconds)" \
+            --label "org.opencontainers.image.description=yq is a portable command-line data file processor" \
+            --label "org.opencontainers.image.documentation=https://mikefarah.gitbook.io/yq/" \
+            --label "org.opencontainers.image.licenses=MIT" \
+            --label "org.opencontainers.image.revision=$(git rev-parse HEAD)" \
+            --label "org.opencontainers.image.source=https://github.com/mikefarah/yq" \
+            --label "org.opencontainers.image.title=yq" \
+            --label "org.opencontainers.image.url=https://mikefarah.gitbook.io/yq/" \
+            --label "org.opencontainers.image.version=${IMAGE_VERSION}" \
+            --platform "${PLATFORMS}" \
+            --pull \
+            --push \
+            -t "${IMAGE_NAME}:${IMAGE_VERSION}-githubaction" \
+            -t "${IMAGE_NAME}:4-githubaction" \
+            -t "${IMAGE_NAME}:latest-githubaction" \
+            -t "ghcr.io/${IMAGE_NAME}:${IMAGE_VERSION}-githubaction" \
+            -t "ghrc.io/${IMAGE_NAME}:4-githubaction" \
+            -t "ghcr.io/${IMAGE_NAME}:latest-githubaction" \
+            .

.github/workflows/go.yml

@@ -0,0 +1,35 @@
+name: Build
+on: [push, pull_request]
+permissions:
+  contents: read
+
+jobs:
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: '^1.20'
+      id: go
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v4
+
+    - name: Get dependencies
+      run: |
+        go get -v -t -d ./...
+        if [ -f Gopkg.toml ]; then
+            curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+            dep ensure
+        fi
+
+    - name: Check the build
+      shell: bash -l {0}
+      run: |
+        export PATH=${PATH}:`go env GOPATH`/bin
+        scripts/devtools.sh
+        make local build

.github/workflows/release.yml

@@ -0,0 +1,51 @@
+name: Release YQ
+on:
+  push:
+    tags:
+      - 'v4.*'
+      - 'draft-*'
+
+jobs:
+  publishGitRelease:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: '^1.20'
+          check-latest: true
+      - name: Compile man page markup
+        id: gen-man-page-md
+        run: |
+          ./scripts/generate-man-page-md.sh
+
+      - name: Get the version
+        id: get_version
+        run: echo "VERSION=${GITHUB_REF##*/}" >> "${GITHUB_OUTPUT}"
+
+      - name: Generate man page
+        uses: docker://pandoc/core:2.14.2
+        id: gen-man-page
+        with:
+          args: >-
+            --standalone
+            --to man
+            --variable=title:"YQ"
+            --variable=section:"1"
+            --variable=header:"yq (https://github.com/mikefarah/yq/) version ${{ steps.get_version.outputs.VERSION }}"
+            --variable=author:"Mike Farah"
+            --output=yq.1
+            man.md
+
+      - name: Cross compile
+        run: |
+          sudo apt-get install rhash -y
+          go install github.com/goreleaser/goreleaser/v2@latest
+          ./scripts/xcompile.sh
+
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: build/*
+          draft: true
+          fail_on_unmatched_files: true

.github/workflows/snap-release.yml

@@ -0,0 +1,23 @@
+name: Release Snap
+
+on:
+  release:
+    types: [released]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+    buildSnap:
+      environment: snap
+      runs-on: ubuntu-latest
+      steps:
+        - uses: actions/checkout@v4
+        - uses: snapcore/action-build@v1
+          id: build
+        - uses: snapcore/action-publish@v1
+          env:
+            SNAPCRAFT_STORE_CREDENTIALS: ${{ secrets.STORE_LOGIN }}
+          with:
+            snap: ${{ steps.build.outputs.snap }}
+            release: stable

.github/workflows/test-yq.yml

@@ -0,0 +1,28 @@
+name: Test Yq Action
+on: 
+  push:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Get test
+        id: get_value
+        uses: mikefarah/yq@master
+        with:
+          cmd: yq '.test' examples/multiline-text.yaml
+      - name: Multiline test
+        run: echo "### It was [${{ steps.get_value.outputs.result }}]" >> $GITHUB_STEP_SUMMARY
+      - name: Write inplace test
+        id: lookupSdkVersion
+        uses: mikefarah/yq@master
+        with:
+          cmd: yq -i '.b.c = 5' examples/sample.yaml

.gitignore

@@ -8,6 +8,7 @@ _obj
 _test
 bin
 build
+build-done
 .DS_Store
 
 # Architecture specific extensions/prefixes
@@ -21,12 +22,48 @@ _cgo_gotypes.go
 _cgo_export.*
 
 _testmain.go
+cover.out
 coverage.out
+coverage.html
 *.exe
 *.test
 *.prof
 yaml
-vendor/*/
+vendor/
 tmp/
 cover/
 yq
+
+# snapcraft
+parts/
+prime/
+.snapcraft/
+yq*.snap
+
+test.yml
+test*.yml
+test*.xml
+test*.toml
+test*.yaml
+test_dir1/
+test_dir2/
+0.yml
+1.yml
+2.yml
+
+
+# man page
+man.md
+yq.1
+
+# debian pkg
+_build
+debian/files
+
+# intellij
+/.idea
+
+# vscode
+.vscode
+
+yq3

.golangci.bck.yml

@@ -0,0 +1,38 @@
+run:
+  timeout: 5m
+linters:
+  enable:
+    - asciicheck
+    - depguard
+    - errorlint
+    - gci
+    - gochecknoinits
+    - gofmt
+    - goimports
+    - gosec
+    - gosimple
+    - staticcheck
+    - unused
+    - misspell
+    - nakedret
+    - nolintlint
+    - predeclared
+    - revive
+    - unconvert
+    - unparam
+linters-settings:
+  depguard:
+    rules:
+      prevent_unmaintained_packages:
+        list-mode: lax
+        files:
+          - $all
+          - "!$test"
+        deny:
+          - pkg: io/ioutil
+            desc: "replaced by io and os packages since Go 1.16: https://tip.golang.org/doc/go1.16#ioutil"
+issues:
+  exclude-rules:
+  - linters:
+    - revive
+    text: "var-naming"

.golangci.yml

@@ -0,0 +1,52 @@
+version: "2"
+linters:
+  enable:
+    - asciicheck
+    - depguard
+    - errorlint
+    - gochecknoinits
+    - gosec
+    - misspell
+    - nakedret
+    - nolintlint
+    - predeclared
+    - revive
+    - unconvert
+    - unparam
+  settings:
+    depguard:
+      rules:
+        prevent_unmaintained_packages:
+          list-mode: lax
+          files:
+            - $all
+            - '!$test'
+          deny:
+            - pkg: io/ioutil
+              desc: 'replaced by io and os packages since Go 1.16: https://tip.golang.org/doc/go1.16#ioutil'
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    rules:
+      - linters:
+          - revive
+        text: var-naming
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
+    - gci
+    - gofmt
+    - goimports
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

.goreleaser.yaml

@@ -0,0 +1,48 @@
+version: 2
+
+dist: build
+
+builds:
+  - id: yq
+
+    binary: yq_{{ .Os }}_{{ .Arch }}
+
+    ldflags:
+      - -s -w
+
+    env:
+      - CGO_ENABLED=0
+
+    targets:
+      - darwin_amd64
+      - darwin_arm64
+      - freebsd_386
+      - freebsd_amd64
+      - freebsd_arm
+      - linux_386
+      - linux_amd64
+      - linux_arm
+      - linux_arm64
+      - linux_mips
+      - linux_mips64
+      - linux_mips64le
+      - linux_mipsle
+      - linux_ppc64
+      - linux_ppc64le
+      - linux_riscv64
+      - linux_s390x
+      - netbsd_386
+      - netbsd_amd64
+      - netbsd_arm
+      - openbsd_386
+      - openbsd_amd64
+      - windows_386
+      - windows_amd64
+      - windows_arm
+      - windows_arm64
+
+    no_unique_dist_dir: true
+
+release:
+  disable: true
+  skip_upload: true

.travis.yml

@@ -1,6 +0,0 @@
-language: go
-go:
-    - 1.9.x
-script:
-  - scripts/devtools.sh
-  - make local build

CODE_OF_CONDUCT.md

@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at mikefarah@gmail.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq

CONTRIBUTING.md

@@ -0,0 +1,42 @@
+.# Development
+
+1. Install (Golang)[https://golang.org/]
+1. Run  `scripts/devtools.sh` to install the required devtools
+2. Run `make [local] vendor` to install the vendor dependencies
+2. Run `make [local] test` to ensure you can run the existing tests
+3. Write unit tests - (see existing examples). Changes will not be accepted without corresponding unit tests.
+4. Make the code changes.
+5. `make [local] test` to lint code and run tests
+6. Profit! ok no profit, but raise a PR and get kudos :)
+
+
+# Documentation
+
+The documentation is a bit of a mixed bag (sorry in advance, I do plan on simplifying it...) - with some parts automatically generated and stiched together and some statically defined.
+
+Documentation is written in markdown, and is published in the 'gitbook' branch.
+
+The various operator documentation (e.g. 'strings') are generated from the 'master' branch, and have a statically defined header (e.g. `pkg/yqlib/doc/operators/headers/add.md`) and the bulk of the docs are generated from the unit tests e.g. `pkg/yqlib/operator_add_test.go`.
+
+The pipeline will run the tests and automatically concatenate the files together, and put them under 
+`pkg/qylib/doc/add.md`. These files are checked in the master branch (and are copied to the gitbook branch as part of the release process).
+
+## How to contribute
+
+The first step is to find if what you want is automatically generated or not - start by looking in the master branch. 
+
+Note that PRs with small changes (e.g. minor typos) may not be merged (see https://joel.net/how-one-guy-ruined-hacktoberfest2020-drama).
+
+### Updating dynamic documentation from master
+- Search for the documentation you want to update. If you find matches in a `*_test.go` file - update that, as that will automatically update the matching `*.md` file 
+- Assuming you are updating a `*_test.go` file, once updated, run the test to regenerated the docs. E.g. for the 'Add' test generated docs, from the pkg/yqlib folder run:
+`go test -run TestAddOperatorScenarios` which will run that test defined in the `operator_add_test.go` file.
+- Ensure the tests still pass, and check the generated documentation have your update.
+- Note: If the documentation is only in a `headers/*.md` file, then just update that directly
+- Raise a PR to merge the changes into master!
+
+### Updating static documentation from the gitbook branch
+If you haven't found what you want to update in the master branch, then check the gitbook branch directly as there are a few pages in there that are not in master.
+
+- Update the `*.md` files
+- Raise a PR to merge the changes into gitbook.

Dockerfile

@@ -0,0 +1,28 @@
+FROM golang:1.24.5 AS builder
+
+WORKDIR /go/src/mikefarah/yq
+
+COPY . .
+
+RUN CGO_ENABLED=0 go build -ldflags "-s -w" .
+# RUN ./scripts/test.sh -- this too often times out in the github pipeline.
+RUN ./scripts/acceptance.sh
+
+# Choose alpine as a base image to make this useful for CI, as many
+# CI tools expect an interactive shell inside the container
+FROM alpine:3 AS production
+LABEL maintainer="Mike Farah <mikefarah@users.noreply.github.com>"
+
+COPY --from=builder /go/src/mikefarah/yq/yq /usr/bin/yq
+
+WORKDIR /workdir
+
+RUN set -eux; \
+  addgroup -g 1000 yq; \
+  adduser -u 1000 -G yq -s /bin/sh -h /home/yq -D yq
+
+RUN chown -R yq:yq /workdir
+
+USER yq
+
+ENTRYPOINT ["/usr/bin/yq"]

Dockerfile.dev

@@ -1,30 +1,15 @@
-FROM golang:1.9
+FROM golang:1.24.5
+
+RUN apt-get update && \
+    apt-get install -y npm && \
+    npm install -g npx cspell@latest
 
 COPY scripts/devtools.sh /opt/devtools.sh
 
-RUN set -e -x \
-    && /opt/devtools.sh
+RUN set -e -x && \
+    /opt/devtools.sh
 
-# install mkdocs
-RUN set -ex \
-    && buildDeps=' \
-        build-essential \
-        python-dev \
-    ' \
-    && apt-get update && apt-get install -y --no-install-recommends \
-        $buildDeps \
-        python2.7 \
-        python-setuptools \
-        python-wheel \
-        python-pip \
-    && pip install --upgrade \
-        pip \
-        'Markdown>=2.6.9' \
-        'mkdocs>=0.16.3' \
-        'mkdocs-material>=1.10.1' \
-        'markdown-include>=0.5.1' \
-    && apt-get purge -y --auto-remove $buildDeps \
-    && rm -rf /var/lib/apt/lists/*
+ENV PATH=/go/bin:$PATH
 
 ENV CGO_ENABLED 0
 ENV GOPATH /go:/yq

LICENSE

@@ -1,3 +1,5 @@
+The MIT License (MIT)
+
 Copyright (c) 2017 Mike Farah
 
 Permission is hereby granted, free of charge, to any person obtaining a copy

Makefile

@@ -2,6 +2,7 @@ MAKEFLAGS += --warn-undefined-variables
 SHELL := /bin/bash
 .SHELLFLAGS := -o pipefail -euc
 .DEFAULT_GOAL := install
+ENGINE := $(shell { (podman version > /dev/null 2>&1 && command -v podman) || command -v docker; } 2>/dev/null)
 
 include Makefile.variables
 
@@ -11,12 +12,13 @@ help:
 	@echo
 	@echo 'Usage:'
 	@echo '  ## Develop / Test Commands'
-	@echo '    make build           Build yaml binary.'
-	@echo '    make install         Install yaml.'
-	@echo '    make xcompile        Build cross-compiled binaries of yaml.'
-	@echo '    make vendor          Install dependencies using govendor.'
+	@echo '    make build           Build yq binary.'
+	@echo '    make install         Install yq.'
+	@echo '    make xcompile        Build cross-compiled binaries of yq.'
+	@echo '    make vendor          Install dependencies to vendor directory.'
 	@echo '    make format          Run code formatter.'
 	@echo '    make check           Run static code analysis (lint).'
+	@echo '    make secure          Run gosec.'
 	@echo '    make test            Run tests on project.'
 	@echo '    make cover           Run tests and capture code coverage metrics on project.'
 	@echo '    make clean           Clean the directory tree of produced artifacts.'
@@ -32,7 +34,7 @@ clean:
 
 ## prefix before other make targets to run in your local dev environment
 local: | quiet
-	@$(eval DOCKRUN= )
+	@$(eval ENGINERUN= )
 	@mkdir -p tmp
 	@touch tmp/dev_image_id
 quiet: # this is silly but shuts up 'Nothing to be done for `local`'
@@ -41,9 +43,9 @@ quiet: # this is silly but shuts up 'Nothing to be done for `local`'
 prepare: tmp/dev_image_id
 tmp/dev_image_id: Dockerfile.dev scripts/devtools.sh
 	@mkdir -p tmp
-	@docker rmi -f ${DEV_IMAGE} > /dev/null 2>&1 || true
-	@docker build -t ${DEV_IMAGE} -f Dockerfile.dev .
-	@docker inspect -f "{{ .ID }}" ${DEV_IMAGE} > tmp/dev_image_id
+	@${ENGINE} rmi -f ${DEV_IMAGE} > /dev/null 2>&1 || true
+	@${ENGINE} build -t ${DEV_IMAGE} -f Dockerfile.dev .
+	@${ENGINE} inspect -f "{{ .ID }}" ${DEV_IMAGE} > tmp/dev_image_id
 
 # ----------------------------------------------
 # build
@@ -53,59 +55,65 @@ build: build/dev
 .PHONY: build/dev
 build/dev: test *.go
 	@mkdir -p bin/
-	${DOCKRUN} go build --ldflags "$(LDFLAGS)"
-	${DOCKRUN} bash ./scripts/acceptance.sh
+	${ENGINERUN} go build --ldflags "$(LDFLAGS)"
+	${ENGINERUN} bash ./scripts/acceptance.sh
 
 ## Compile the project for multiple OS and Architectures.
 xcompile: check
 	@rm -rf build/
 	@mkdir -p build
-	${DOCKRUN} bash ./scripts/xcompile.sh
+	${ENGINERUN} bash ./scripts/xcompile.sh
 	@find build -type d -exec chmod 755 {} \; || :
 	@find build -type f -exec chmod 755 {} \; || :
 
 .PHONY: install
 install: build
-	${DOCKRUN} go install
+	${ENGINERUN} go install
 
 # Each of the fetch should be an entry within vendor.json; not currently included within project
 .PHONY: vendor
 vendor: tmp/dev_image_id
-	${DOCKRUN} govendor sync
-	@chmod 664 vendor/vendor.json
+	@mkdir -p vendor
+	${ENGINERUN} go mod vendor
 
 # ----------------------------------------------
 # develop and test
 
 .PHONY: format
 format: vendor
-	${DOCKRUN} bash ./scripts/format.sh
+	${ENGINERUN} bash ./scripts/format.sh
+
+
+.PHONY: spelling
+spelling: format
+	${ENGINERUN} bash ./scripts/spelling.sh
+
+.PHONY: secure
+secure: spelling
+	${ENGINERUN} bash ./scripts/secure.sh
 
 .PHONY: check
-check: format
-	${DOCKRUN} bash ./scripts/check.sh
+check: secure
+	${ENGINERUN} bash ./scripts/check.sh
+
+
 
 .PHONY: test
 test: check
-	${DOCKRUN} bash ./scripts/test.sh
+	${ENGINERUN} bash ./scripts/test.sh
 
 .PHONY: cover
 cover: check
 	@rm -rf cover/
 	@mkdir -p cover
-	${DOCKRUN} bash ./scripts/coverage.sh
+	${ENGINERUN} bash ./scripts/coverage.sh
 	@find cover -type d -exec chmod 755 {} \; || :
 	@find cover -type f -exec chmod 644 {} \; || :
 
-.PHONY: build-docs
-build-docs: prepare mkdocs.yml mkdocs/*
-	${DOCKRUN} mkdocs build
-	@find docs -type d -exec chmod 755 {} \; || :
-	@find docs -type f -exec chmod 644 {} \; || :
 
 .PHONY: release
 release: xcompile
-	${DOCKRUN} bash ./scripts/publish.sh
+	${ENGINERUN} bash ./scripts/publish.sh
 
 # ----------------------------------------------
 # utilities

Makefile.variables

@@ -7,6 +7,7 @@ export GIT_DESCRIBE = $(shell git describe --tags --always)
 LDFLAGS :=
 LDFLAGS += -X main.GitCommit=${GIT_COMMIT}${GIT_DIRTY}
 LDFLAGS += -X main.GitDescribe=${GIT_DESCRIBE}
+LDFLAGS += -w -s
 
 GITHUB_TOKEN ?=
 
@@ -25,14 +26,15 @@ ifeq ($(CYG_CHECK),1)
 else
 	# all non-windows environments
 	ROOT := $(shell pwd)
+	SELINUX := $(shell which getenforce 2>&1 >/dev/null && echo :z)
 endif
 
 DEV_IMAGE := ${PROJECT}_dev
 
-DOCKRUN := docker run --rm \
+ENGINERUN := ${ENGINE} run --rm \
 	-e LDFLAGS="${LDFLAGS}" \
 	-e GITHUB_TOKEN="${GITHUB_TOKEN}" \
-	-v ${ROOT}/vendor:/go/src \
-	-v ${ROOT}:/${PROJECT}/src/${IMPORT_PATH} \
+	-v ${ROOT}/vendor:/go/src${SELINUX} \
+	-v ${ROOT}:/${PROJECT}/src/${IMPORT_PATH}${SELINUX} \
 	-w /${PROJECT}/src/${IMPORT_PATH} \
 	${DEV_IMAGE}

README.md

@@ -1,57 +1,423 @@
-# yq [![Build Status](https://travis-ci.org/mikefarah/yaml.svg?branch=master)](https://travis-ci.org/mikefarah/yaml)
-a lightweight and portable command-line YAML processor
+# yq
 
-The aim of the project is to be the [jq](https://github.com/stedolan/jq) or sed of yaml files.
+![Build](https://github.com/mikefarah/yq/workflows/Build/badge.svg)  ![Docker Pulls](https://img.shields.io/docker/pulls/mikefarah/yq.svg) ![Github Releases (by Release)](https://img.shields.io/github/downloads/mikefarah/yq/total.svg) ![Go Report](https://goreportcard.com/badge/github.com/mikefarah/yq) ![CodeQL](https://github.com/mikefarah/yq/workflows/CodeQL/badge.svg)
+
+
+a lightweight and portable command-line YAML, JSON, INI and XML processor. `yq` uses [jq](https://github.com/stedolan/jq) like syntax but works with yaml files as well as json, xml, ini, properties, csv and tsv. It doesn't yet support everything `jq` does - but it does support the most common operations and functions, and more is being added continuously.
+
+yq is written in go - so you can download a dependency free binary for your platform and you are good to go! If you prefer there are a variety of package managers that can be used as well as Docker and Podman, all listed below.
+
+## Quick Usage Guide
+
+Read a value:
+```bash
+yq '.a.b[0].c' file.yaml
+```
+
+Pipe from STDIN:
+```bash
+yq '.a.b[0].c' < file.yaml
+```
+
+Update a yaml file, in place
+```bash
+yq -i '.a.b[0].c = "cool"' file.yaml
+```
+
+Update using environment variables
+```bash
+NAME=mike yq -i '.a.b[0].c = strenv(NAME)' file.yaml
+```
+
+Merge multiple files
+```bash
+# merge two files
+yq -n 'load("file1.yaml") * load("file2.yaml")'
+
+# merge using globs:
+# note the use of `ea` to evaluate all the files at once
+# instead of in sequence
+yq ea '. as $item ireduce ({}; . * $item )' path/to/*.yml
+```
+
+Multiple updates to a yaml file
+```bash
+yq -i '
+  .a.b[0].c = "cool" |
+  .x.y.z = "foobar" |
+  .person.name = strenv(NAME)
+' file.yaml
+```
+
+Find and update an item in an array:
+```bash
+yq '(.[] | select(.name == "foo") | .address) = "12 cat st"'
+```
+
+Convert JSON to YAML
+```bash
+yq -Poy sample.json
+```
+
+See [recipes](https://mikefarah.gitbook.io/yq/recipes) for more examples and the [documentation](https://mikefarah.gitbook.io/yq/) for more information.
+
+Take a look at the discussions for [common questions](https://github.com/mikefarah/yq/discussions/categories/q-a), and [cool ideas](https://github.com/mikefarah/yq/discussions/categories/show-and-tell)
 
 ## Install
-[Download latest binary](https://github.com/mikefarah/yq/releases/latest) or alternatively:
+
+### [Download the latest binary](https://github.com/mikefarah/yq/releases/latest)
+
+### wget
+Use wget to download, gzipped pre-compiled binaries:
+
+
+For instance, VERSION=v4.2.0 and BINARY=yq_linux_amd64
+
+#### Compressed via tar.gz
+```bash
+wget https://github.com/mikefarah/yq/releases/download/${VERSION}/${BINARY}.tar.gz -O - |\
+  tar xz && mv ${BINARY} /usr/local/bin/yq
 ```
-go get github.com/mikefarah/yq
+
+#### Plain binary
+
+```bash
+wget https://github.com/mikefarah/yq/releases/download/${VERSION}/${BINARY} -O /usr/local/bin/yq &&\
+    chmod +x /usr/local/bin/yq
+```
+
+#### Latest version
+
+```bash
+wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O /usr/local/bin/yq &&\
+    chmod +x /usr/local/bin/yq
+```
+
+### MacOS / Linux via Homebrew:
+Using [Homebrew](https://brew.sh/)
+```
+brew install yq
+```
+
+### Linux via snap:
+```
+snap install yq
+```
+
+#### Snap notes
+`yq` installs with [_strict confinement_](https://docs.snapcraft.io/snap-confinement/6233) in snap, this means it doesn't have direct access to root files. To read root files you can:
+
+```
+sudo cat /etc/myfile | yq '.a.path'
+```
+
+And to write to a root file you can either use [sponge](https://linux.die.net/man/1/sponge):
+```
+sudo cat /etc/myfile | yq '.a.path = "value"' | sudo sponge /etc/myfile
+```
+or write to a temporary file:
+```
+sudo cat /etc/myfile | yq '.a.path = "value"' | sudo tee /etc/myfile.tmp
+sudo mv /etc/myfile.tmp /etc/myfile
+rm /etc/myfile.tmp
+```
+
+### Run with Docker or Podman
+#### Oneshot use:
+
+```bash
+docker run --rm -v "${PWD}":/workdir mikefarah/yq [command] [flags] [expression ]FILE...
+```
+
+Note that you can run `yq` in docker without network access and other privileges if you desire,
+namely `--security-opt=no-new-privileges --cap-drop all --network none`.
+
+```bash
+podman run --rm -v "${PWD}":/workdir mikefarah/yq [command] [flags] [expression ]FILE...
+```
+
+#### Pipe in via STDIN:
+
+You'll need to pass the `-i\--interactive` flag to docker:
+
+```bash
+docker run -i --rm mikefarah/yq '.this.thing' < myfile.yml
+```
+
+```bash
+podman run -i --rm mikefarah/yq '.this.thing' < myfile.yml
+```
+
+#### Run commands interactively:
+
+```bash
+docker run --rm -it -v "${PWD}":/workdir --entrypoint sh mikefarah/yq
+```
+
+```bash
+podman run --rm -it -v "${PWD}":/workdir --entrypoint sh mikefarah/yq
+```
+
+It can be useful to have a bash function to avoid typing the whole docker command:
+
+```bash
+yq() {
+  docker run --rm -i -v "${PWD}":/workdir mikefarah/yq "$@"
+}
+```
+
+```bash
+yq() {
+  podman run --rm -i -v "${PWD}":/workdir mikefarah/yq "$@"
+}
+```
+#### Running as root:
+
+`yq`'s container image no longer runs under root (https://github.com/mikefarah/yq/pull/860). If you'd like to install more things in the container image, or you're having permissions issues when attempting to read/write files you'll need to either:
+
+
+```
+docker run --user="root" -it --entrypoint sh mikefarah/yq
+```
+
+```
+podman run --user="root" -it --entrypoint sh mikefarah/yq
+```
+
+Or, in your Dockerfile:
+
+```
+FROM mikefarah/yq
+
+USER root
+RUN apk add --no-cache bash
+USER yq
+```
+
+#### Missing timezone data
+By default, the alpine image yq uses does not include timezone data. If you'd like to use the `tz` operator, you'll need to include this data:
+
+```
+FROM mikefarah/yq
+
+USER root
+RUN apk add --no-cache tzdata
+USER yq
+```
+
+#### Podman with SELinux
+
+If you are using podman with SELinux, you will need to set the shared volume flag `:z` on the volume mount:
+
+```
+-v "${PWD}":/workdir:z
+```
+
+### GitHub Action
+```
+  - name: Set foobar to cool
+    uses: mikefarah/yq@master
+    with:
+      cmd: yq -i '.foo.bar = "cool"' 'config.yml'
+  - name: Get an entry with a variable that might contain dots or spaces
+    id: get_username
+    uses: mikefarah/yq@master
+    with:
+      cmd: yq '.all.children.["${{ matrix.ip_address }}"].username' ops/inventories/production.yml
+  - name: Reuse a variable obtained in another step
+    run: echo ${{ steps.get_username.outputs.result }}
+```
+
+See https://mikefarah.gitbook.io/yq/usage/github-action for more.
+
+### Go Install:
+```
+go install github.com/mikefarah/yq/v4@latest
+```
+
+## Community Supported Installation methods
+As these are supported by the community :heart: - however, they may be out of date with the officially supported releases.
+
+_Please note that the Debian package (previously supported by @rmescandon) is no longer maintained. Please use an alternative installation method._
+
+
+### X-CMD
+Checkout `yq` on x-cmd: https://x-cmd.com/mod/yq
+
+- Instant Results: See the output of your yq filter in real-time.
+- Error Handling: Encounter a syntax error? It will display the error message and the results of the closest valid filter
+
+Thanks @edwinjhlee!
+
+### Nix
+
+```
+nix profile install nixpkgs#yq-go
+```
+
+See [here](https://search.nixos.org/packages?channel=unstable&show=yq-go&from=0&size=50&sort=relevance&type=packages&query=yq-go)
+
+
+### Webi
+
+```
+webi yq
+```
+
+See [webi](https://webinstall.dev/)
+Supported by @adithyasunil26 (https://github.com/webinstall/webi-installers/tree/master/yq)
+
+### Arch Linux
+
+```
+pacman -S go-yq
+```
+
+### Windows:
+
+Using [Chocolatey](https://chocolatey.org)
+
+[![Chocolatey](https://img.shields.io/chocolatey/v/yq.svg)](https://chocolatey.org/packages/yq)
+[![Chocolatey](https://img.shields.io/chocolatey/dt/yq.svg)](https://chocolatey.org/packages/yq)
+```
+choco install yq
+```
+Supported by @chillum (https://chocolatey.org/packages/yq)
+
+Using [scoop](https://scoop.sh/)
+```
+scoop install main/yq
+```
+
+Using [winget](https://learn.microsoft.com/en-us/windows/package-manager/)
+```
+winget install --id MikeFarah.yq
+```
+
+### Mac:
+Using [MacPorts](https://www.macports.org/)
+```
+sudo port selfupdate
+sudo port install yq
+```
+Supported by @herbygillot (https://ports.macports.org/maintainer/github/herbygillot)
+
+### Alpine Linux
+
+Alpine Linux v3.20+ (and Edge):
+```
+apk add yq-go
+```
+
+Alpine Linux up to v3.19:
+```
+apk add yq
+```
+
+Supported by Tuan Hoang (https://pkgs.alpinelinux.org/packages?name=yq-go)
+
+### Flox:
+
+Flox can be used to install yq on Linux, MacOS, and Windows through WSL.
+
+```
+flox install yq
 ```
 
 ## Features
+- [Detailed documentation with many examples](https://mikefarah.gitbook.io/yq/)
 - Written in portable go, so you can download a lovely dependency free binary
-- Deep read a yaml file with a given path
-- Update a yaml file given a path
-- Update a yaml file given a script file
-- Update creates any missing entries in the path on the fly
-- Create a yaml file given a deep path and value
-- Create a yaml file given a script file
-- Convert from json to yaml
-- Convert from yaml to json
-- Pipe data in by using '-'
-- Merge multiple yaml files where each additional file sets values for missing or null value keys.
-- Merge multiple yaml files with overwrite to support overriding previous values.
+- Uses similar syntax as `jq` but works with YAML, INI, [JSON](https://mikefarah.gitbook.io/yq/usage/convert) and [XML](https://mikefarah.gitbook.io/yq/usage/xml) files
+- Fully supports multi document yaml files
+- Supports yaml [front matter](https://mikefarah.gitbook.io/yq/usage/front-matter) blocks (e.g. jekyll/assemble)
+- Colorized yaml output
+- [Date/Time manipulation and formatting with TZ](https://mikefarah.gitbook.io/yq/operators/datetime)
+- [Deeply data structures](https://mikefarah.gitbook.io/yq/operators/traverse-read)
+- [Sort keys](https://mikefarah.gitbook.io/yq/operators/sort-keys)
+- Manipulate yaml [comments](https://mikefarah.gitbook.io/yq/operators/comment-operators), [styling](https://mikefarah.gitbook.io/yq/operators/style), [tags](https://mikefarah.gitbook.io/yq/operators/tag) and [anchors and aliases](https://mikefarah.gitbook.io/yq/operators/anchor-and-alias-operators).
+- [Update in place](https://mikefarah.gitbook.io/yq/v/v4.x/commands/evaluate#flags)
+- [Complex expressions to select and update](https://mikefarah.gitbook.io/yq/operators/select#select-and-update-matching-values-in-map)
+- Keeps yaml formatting and comments when updating (though there are issues with whitespace)
+- [Decode/Encode base64 data](https://mikefarah.gitbook.io/yq/operators/encode-decode)
+- [Load content from other files](https://mikefarah.gitbook.io/yq/operators/load)
+- [Convert to/from json/ndjson](https://mikefarah.gitbook.io/yq/v/v4.x/usage/convert)
+- [Convert to/from xml](https://mikefarah.gitbook.io/yq/v/v4.x/usage/xml)
+- [Convert to/from properties](https://mikefarah.gitbook.io/yq/v/v4.x/usage/properties)
+- [Convert to/from csv/tsv](https://mikefarah.gitbook.io/yq/usage/csv-tsv)
+- [General shell completion scripts (bash/zsh/fish/powershell)](https://mikefarah.gitbook.io/yq/v/v4.x/commands/shell-completion)
+- [Reduce](https://mikefarah.gitbook.io/yq/operators/reduce) to merge multiple files or sum an array or other fancy things.
+- [Github Action](https://mikefarah.gitbook.io/yq/usage/github-action) to use in your automated pipeline (thanks @devorbitus)
 
-## [Usage](http://mikefarah.github.io/yq/)
+## [Usage](https://mikefarah.gitbook.io/yq/)
 
-Check out the [documentation](http://mikefarah.github.io/yq/) for more detailed and advanced usage.
+Check out the [documentation](https://mikefarah.gitbook.io/yq/) for more detailed and advanced usage.
 
 ```
 Usage:
   yq [flags]
   yq [command]
 
+Examples:
+
+# yq defaults to 'eval' command if no command is specified. See "yq eval --help" for more examples.
+yq '.stuff' < myfile.yml # outputs the data at the "stuff" node from "myfile.yml"
+
+yq -i '.stuff = "foo"' myfile.yml # update myfile.yml in place
+
+
 Available Commands:
+  completion  Generate the autocompletion script for the specified shell
+  eval        (default) Apply the expression to each document in each yaml file in sequence
+  eval-all    Loads _all_ yaml documents of _all_ yaml files and runs expression once
   help        Help about any command
-  merge       yq m [--inplace/-i] [--overwrite/-x] sample.yaml sample2.yaml
-  new         yq n [--script/-s script_file] a.b.c newValueForC
-  read        yq r sample.yaml a.b.c
-  write       yq w [--inplace/-i] [--script/-s script_file] sample.yaml a.b.c newValueForC
 
 Flags:
-  -h, --help      help for yq
-  -j, --tojson    output as json
-  -t, --trim      trim yaml output (default true)
-  -v, --verbose   verbose mode
-  -V, --version   Print version information and quit
+  -C, --colors                        force print with colors
+      --csv-auto-parse                parse CSV YAML/JSON values (default true)
+      --csv-separator char            CSV Separator character (default ,)
+  -e, --exit-status                   set exit status if there are no matches or null or false is returned
+      --expression string             forcibly set the expression argument. Useful when yq argument detection thinks your expression is a file.
+      --from-file string              Load expression from specified file.
+  -f, --front-matter string           (extract|process) first input as yaml front-matter. Extract will pull out the yaml content, process will run the expression against the yaml content, leaving the remaining data intact
+      --header-preprocess             Slurp any header comments and separators before processing expression. (default true)
+  -h, --help                          help for yq
+  -I, --indent int                    sets indent level for output (default 2)
+  -i, --inplace                       update the file in place of first file given.
+  -p, --input-format string           [auto|a|yaml|y|json|j|props|p|csv|c|tsv|t|xml|x|base64|uri|toml|lua|l|ini|i] parse format for input. (default "auto")
+      --lua-globals                   output keys as top-level global variables
+      --lua-prefix string             prefix (default "return ")
+      --lua-suffix string             suffix (default ";\n")
+      --lua-unquoted                  output unquoted string keys (e.g. {foo="bar"})
+  -M, --no-colors                     force print with no colors
+  -N, --no-doc                        Don't print document separators (---)
+  -0, --nul-output                    Use NUL char to separate values. If unwrap scalar is also set, fail if unwrapped scalar contains NUL char.
+  -n, --null-input                    Don't read input, simply evaluate the expression given. Useful for creating docs from scratch.
+  -o, --output-format string          [auto|a|yaml|y|json|j|props|p|csv|c|tsv|t|xml|x|base64|uri|toml|shell|s|lua|l|ini|i] output format type. (default "auto")
+  -P, --prettyPrint                   pretty print, shorthand for '... style = ""'
+      --properties-array-brackets     use [x] in array paths (e.g. for SpringBoot)
+      --properties-separator string   separator to use between keys and values (default " = ")
+  -s, --split-exp string              print each result (or doc) into a file named (exp). [exp] argument must return a string. You can use $index in the expression as the result counter. The necessary directories will be created.
+      --split-exp-file string         Use a file to specify the split-exp expression.
+      --string-interpolation          Toggles strings interpolation of \(exp) (default true)
+      --tsv-auto-parse                parse TSV YAML/JSON values (default true)
+  -r, --unwrapScalar                  unwrap scalar, print the value with no quotes, colors or comments. Defaults to true for yaml (default true)
+  -v, --verbose                       verbose mode
+  -V, --version                       Print version information and quit
+      --xml-attribute-prefix string   prefix for xml attributes (default "+@")
+      --xml-content-name string       name for xml content (if no attribute name is present). (default "+content")
+      --xml-directive-name string     name for xml directives (e.g. <!DOCTYPE thing cat>) (default "+directive")
+      --xml-keep-namespace            enables keeping namespace after parsing attributes (default true)
+      --xml-proc-inst-prefix string   prefix for xml processing instructions (e.g. <?xml version="1"?>) (default "+p_")
+      --xml-raw-token                 enables using RawToken method instead Token. Commonly disables namespace translations. See https://pkg.go.dev/encoding/xml#Decoder.RawToken for details. (default true)
+      --xml-skip-directives           skip over directives (e.g. <!DOCTYPE thing cat>)
+      --xml-skip-proc-inst            skip over process instructions (e.g. <?xml version="1"?>)
+      --xml-strict-mode               enables strict parsing of XML. See https://pkg.go.dev/encoding/xml for more details.
 
 Use "yq [command] --help" for more information about a command.
 ```
+## Known Issues / Missing Features
+- `yq` attempts to preserve comment positions and whitespace as much as possible, but it does not handle all scenarios (see https://github.com/go-yaml/yaml/tree/v3 for details)
+- Powershell has its own...[opinions on quoting yq](https://mikefarah.gitbook.io/yq/usage/tips-and-tricks#quotes-in-windows-powershell)
+- "yes", "no" were dropped as boolean values in the yaml 1.2 standard - which is the standard yq assumes.
 
-## Contribute
-1. `make [local] vendor`
-2. add unit tests
-3. apply changes
-4. `make [local] build`
-5. profit
+See [tips and tricks](https://mikefarah.gitbook.io/yq/usage/tips-and-tricks) for more common problems and solutions.

acceptance_tests/bad_args.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+testWriteInPlacePipeIn() {
+  result=$(./yq e -i -n '.a' 2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: write in place flag only applicable when giving an expression and at least one file" "$result"
+}
+
+testWriteInPlacePipeInEvalall() {
+  result=$(./yq ea -i -n '.a' 2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: write in place flag only applicable when giving an expression and at least one file" "$result"
+}
+
+testWriteInPlaceWithSplit() {
+  result=$(./yq e -s "cat" -i '.a = "thing"' test.yml 2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: write in place cannot be used with split file" "$result"
+}
+
+testWriteInPlaceWithSplitEvalAll() {
+  result=$(./yq ea -s "cat" -i '.a = "thing"' test.yml 2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: write in place cannot be used with split file" "$result"
+}
+
+testNullWithFiles() {
+  result=$(./yq e -n '.a = "thing"' test.yml 2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: cannot pass files in when using null-input flag" "$result"
+}
+
+testNullWithFilesEvalAll() {
+  result=$(./yq ea -n '.a = "thing"' test.yml 2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: cannot pass files in when using null-input flag" "$result"
+}
+
+
+
+source ./scripts/shunit2

acceptance_tests/basic.sh

@@ -0,0 +1,373 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yml 2>/dev/null || true
+  rm .xyz 2>/dev/null || true
+  rm instructions.txt 2>/dev/null || true
+}
+
+testBasicEvalRoundTrip() {
+  ./yq -n ".a = 123" > test.yml
+  X=$(./yq '.a' test.yml)
+  assertEquals 123 "$X"
+}
+
+testBasicTrailingContent() {
+  cat >test-trailing.yml <<EOL
+test:
+# this comment will be removed
+EOL
+
+  read -r -d '' expected << EOM
+test:
+# this comment will be removed
+EOM
+  X=$(./yq test-trailing.yml -P)
+  assertEquals "$expected" "$X"
+}
+
+testBasicTrailingContent() {
+  cat >test-trailing.yml <<EOL
+test:
+# this comment will be removed
+EOL
+
+  read -r -d '' expected << EOM
+test:
+# hi
+EOM
+  X=$(./yq '. footComment = "hi"' test-trailing.yml)
+  assertEquals "$expected" "$X"
+}
+
+testBasicTrailingContentEvalAll() {
+  cat >test-trailing.yml <<EOL
+test:
+# this comment will be removed
+EOL
+
+  read -r -d '' expected << EOM
+test:
+# this comment will be removed
+EOM
+  X=$(./yq ea test-trailing.yml -P)
+  assertEquals "$expected" "$X"
+}
+
+testBasicTrailingContentEvalAll() {
+  cat >test-trailing.yml <<EOL
+test:
+# this comment will be removed
+EOL
+
+  read -r -d '' expected << EOM
+test:
+# hi
+EOM
+  X=$(./yq ea '. footComment = "hi"' test-trailing.yml)
+  assertEquals "$expected" "$X"
+}
+
+testBasicPipeWithDot() {
+  ./yq -n ".a = 123" > test.yml
+  X=$(cat test.yml | ./yq '.')
+  assertEquals "a: 123" "$X"
+}
+
+testBasicExpressionMatchesFileName() {
+  ./yq -n ".xyz = 123" > test.yml
+  touch .xyz
+  
+  X=$(./yq --expression '.xyz' test.yml)
+  assertEquals "123" "$X"
+
+  X=$(./yq ea --expression '.xyz' test.yml)
+  assertEquals "123" "$X"
+}
+
+testBasicExpressionFromFile() {
+  ./yq -n ".xyz = 123" > test.yml
+  echo '.xyz = "meow" | .cool = "frog"' > instructions.txt
+  
+  X=$(./yq --from-file instructions.txt test.yml -o=j -I=0)
+  assertEquals '{"xyz":"meow","cool":"frog"}' "$X"
+
+  X=$(./yq ea --from-file instructions.txt test.yml -o=j -I=0)
+  assertEquals '{"xyz":"meow","cool":"frog"}' "$X"
+}
+
+testBasicExpressionFromFileDos() {
+  ./yq -n ".xyz = 123" > test.yml
+  echo '.xyz = "meow" | .cool = "frog"' | sed 's/$'"/`echo \\\r`/" > instructions.txt
+  
+  X=$(./yq --from-file instructions.txt test.yml -o=j -I=0)
+  assertEquals '{"xyz":"meow","cool":"frog"}' "$X"
+
+  X=$(./yq ea --from-file instructions.txt test.yml -o=j -I=0)
+  assertEquals '{"xyz":"meow","cool":"frog"}' "$X"
+}
+
+testBasicGitHubAction() {
+  ./yq -n ".a = 123" > test.yml
+  X=$(cat /dev/null | ./yq test.yml)
+  assertEquals "a: 123" "$X"
+
+  X=$(cat /dev/null | ./yq e test.yml)
+  assertEquals "a: 123" "$X"
+
+  X=$(cat /dev/null | ./yq ea test.yml)
+  assertEquals "a: 123" "$X"
+}
+
+testBasicGitHubActionWithExpression() {
+  ./yq -n ".a = 123" > test.yml
+  X=$(cat /dev/null | ./yq '.a' test.yml)
+  assertEquals "123" "$X"
+
+  X=$(cat /dev/null | ./yq e '.a' test.yml)
+  assertEquals "123" "$X"
+
+  X=$(cat /dev/null | ./yq ea '.a' test.yml)
+  assertEquals "123" "$X"
+}
+
+
+testBasicEvalAllAllFiles() {
+  ./yq -n ".a = 123" > test.yml
+  ./yq -n ".a = 124" > test2.yml
+  X=$(./yq ea test.yml test2.yml)
+  Y=$(./yq e '.' test.yml test2.yml)
+  assertEquals "$Y" "$X"
+}
+
+# when given a file, don't read STDIN
+# otherwise strange things start happening
+# in scripts
+# https://github.com/mikefarah/yq/issues/1115
+
+testBasicCatWithFilesNoDash() {
+  ./yq -n ".a = 123" > test.yml
+  ./yq -n ".a = 124" > test2.yml
+  X=$(cat test.yml | ./yq test2.yml)
+  Y=$(./yq e '.' test2.yml)
+  assertEquals "$Y" "$X"
+}
+
+# when the nullinput flag is used
+# don't automatically read STDIN (this breaks github actions)
+testBasicCreateFileGithubAction() {
+  cat /dev/null | ./yq -n ".a = 123" > test.yml
+}
+
+testBasicEvalAllCatWithFilesNoDash() {
+  ./yq -n ".a = 123" > test.yml
+  ./yq -n ".a = 124" > test2.yml
+  X=$(cat test.yml | ./yq ea test2.yml)
+  Y=$(./yq e '.' test2.yml)
+  assertEquals "$Y" "$X"
+}
+
+testBasicCatWithFilesNoDashWithExp() {
+  ./yq -n ".a = 123" > test.yml
+  ./yq -n ".a = 124" > test2.yml
+  X=$(cat test.yml | ./yq '.a' test2.yml)
+  Y=$(./yq e '.a' test2.yml)
+  assertEquals "$Y" "$X"
+}
+
+testBasicEvalAllCatWithFilesNoDashWithExp() {
+  ./yq -n ".a = 123" > test.yml
+  ./yq -n ".a = 124" > test2.yml
+  X=$(cat test.yml | ./yq ea '.a' test2.yml)
+  Y=$(./yq e '.a' test2.yml)
+  assertEquals "$Y" "$X"
+}
+
+
+testBasicStdInWithFiles() {
+  ./yq -n ".a = 123" > test.yml
+  ./yq -n ".a = 124" > test2.yml
+  X=$(cat test.yml | ./yq - test2.yml)
+  Y=$(./yq e '.' test.yml test2.yml)
+  assertEquals "$Y" "$X"
+}
+
+testBasicEvalAllStdInWithFiles() {
+  ./yq -n ".a = 123" > test.yml
+  ./yq -n ".a = 124" > test2.yml
+  X=$(cat test.yml | ./yq ea - test2.yml)
+  Y=$(./yq e '.' test.yml test2.yml)
+  assertEquals "$Y" "$X"
+}
+
+testBasicStdInWithFilesReverse() {
+  ./yq -n ".a = 123" > test.yml
+  ./yq -n ".a = 124" > test2.yml
+  X=$(cat test.yml | ./yq test2.yml -)
+  Y=$(./yq e '.' test2.yml test.yml)
+  assertEquals "$Y" "$X"
+}
+
+testBasicEvalAllStdInWithFilesReverse() {
+  ./yq -n ".a = 123" > test.yml
+  ./yq -n ".a = 124" > test2.yml
+  X=$(cat test.yml | ./yq ea test2.yml -)
+  Y=$(./yq e '.' test2.yml test.yml)
+  assertEquals "$Y" "$X"
+}
+
+testBasicEvalRoundTripNoEval() {
+  ./yq -n ".a = 123" > test.yml
+  X=$(./yq '.a' test.yml)
+  assertEquals 123 "$X"
+}
+
+testBasicStdInWithOneArg() {
+  ./yq e -n ".a = 123" > test.yml
+  X=$(cat test.yml | ./yq e ".a")
+  assertEquals 123 "$X"
+
+  X=$(cat test.yml | ./yq ea ".a")
+  assertEquals 123 "$X"
+
+  X=$(cat test.yml | ./yq ".a")
+  assertEquals 123 "$X"
+}
+
+testBasicUpdateInPlaceSequence() {
+  cat >test.yml <<EOL
+a: 0
+EOL
+  ./yq e -i ".a = 10" test.yml
+  X=$(./yq e '.a' test.yml)
+  assertEquals "10" "$X"
+}
+
+testBasicUpdateInPlaceSequenceNoEval() {
+  cat >test.yml <<EOL
+a: 0
+EOL
+  ./yq -i ".a = 10" test.yml
+  X=$(./yq '.a' test.yml)
+  assertEquals "10" "$X"
+}
+
+testBasicUpdateInPlaceSequenceEvalAll() {
+  cat >test.yml <<EOL
+a: 0
+EOL
+  ./yq ea -i ".a = 10" test.yml
+  X=$(./yq e '.a' test.yml)
+  assertEquals "10" "$X"
+}
+
+testBasicUpdateInPlaceMultipleFilesNoExpressionEval() {
+  cat >test.yml <<EOL
+a: 0
+EOL
+  cat >test2.yml <<EOL
+a: 1
+EOL
+read -r -d '' expected << EOM
+0
+---
+1
+EOM
+  ./yq -i test.yml test2.yml
+  X=$(./yq e '.a' test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testBasicUpdateInPlaceMultipleFilesNoExpressionEvalAll() {
+  cat >test.yml <<EOL
+a: 0
+EOL
+  cat >test2.yml <<EOL
+a: 1
+EOL
+read -r -d '' expected << EOM
+0
+---
+1
+EOM
+  ./yq -i ea test.yml test2.yml
+  X=$(./yq e '.a' test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testBasicNoExitStatus() {
+  echo "a: cat" > test.yml
+  X=$(./yq e '.z' test.yml)
+  assertEquals "null" "$X"
+}
+
+testBasicExitStatus() {
+  echo "a: cat" > test.yml
+  X=$(./yq e -e '.z' test.yml 2&>/dev/null)
+  assertEquals 1 "$?"
+}
+
+testBasicExitStatusNoEval() {
+  echo "a: cat" > test.yml
+  X=$(./yq -e '.z' test.yml 2&>/dev/null)
+  assertEquals 1 "$?"
+}
+
+testBasicExtractFieldWithSeparator() {
+    cat >test.yml <<EOL
+---
+name: chart-name
+version: 1.2.3
+EOL
+  X=$(./yq e '.name' test.yml)
+  assertEquals "chart-name" "$X"
+}
+
+testBasicExtractMultipleFieldWithSeparator() {
+    cat >test.yml <<EOL
+---
+name: chart-name
+version: 1.2.3
+---
+name: thing
+version: 1.2.3
+EOL
+
+read -r -d '' expected << EOM
+chart-name
+---
+thing
+EOM
+  X=$(./yq e '.name' test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testBasicMultiplyAssignMultiDoc() {
+      cat >test.yml <<EOL
+a: 1
+---
+b: 2
+EOL
+
+read -r -d '' expected << EOM
+a: 1
+c: 3
+---
+b: 2
+c: 3
+EOM
+
+
+  X=$(./yq '. *= {"c":3}' test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testBasicClosedStdIn() {
+  cat >test.yml <<EOL
+a: 1
+EOL
+  X=$(./yq e '.a' test.yml <&-)
+  assertEquals "1" "$X"
+}
+
+source ./scripts/shunit2

acceptance_tests/completion.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+testCompletionRuns() {
+    result=$(./yq __complete "" 2>&1)
+    assertEquals 0 $?
+    assertContains "$result" "Completion ended with directive:"
+}
+
+source ./scripts/shunit2

acceptance_tests/empty.sh

@@ -0,0 +1,83 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yml || true
+  cat >test.yml <<EOL
+# comment
+EOL
+}
+
+testEmptyEval() {
+  X=$(./yq e test.yml)
+  expected="# comment"
+  assertEquals 0 $?
+  assertEquals "$expected" "$X"
+}
+
+testEmptyEvalNoNewLine() {
+  echo -n "#comment" >test.yml
+  X=$(./yq e test.yml)
+  expected=$(cat test.yml)
+  assertEquals 0 $?
+  assertEquals "$expected" "$X"
+}
+
+testEmptyEvalNoNewLineWithExpression() {
+  echo -n "# comment" >test.yml
+  X=$(./yq e '.apple = "tree"' test.yml)
+  read -r -d '' expected << EOM
+# comment
+apple: tree
+EOM
+  assertEquals "$expected" "$X"
+}
+
+testEmptyEvalPipe() {
+  X=$(./yq e - < test.yml)
+  assertEquals 0 $?
+}
+
+testEmptyCommentsWithExpressionEval() {
+  read -r -d '' expected << EOM
+# comment
+apple: tree
+EOM
+
+  X=$(./yq e '.apple="tree"' test.yml)
+
+  assertEquals "$expected" "$X"
+}
+
+testEmptyCommentsWithExpressionEvalAll() {
+  read -r -d '' expected << EOM
+# comment
+apple: tree
+EOM
+
+  X=$(./yq ea '.apple="tree"' test.yml)
+
+  assertEquals "$expected" "$X"
+}
+
+testEmptyWithExpressionEval() {
+  rm test.yml
+  touch test.yml
+  expected="apple: tree"
+
+  X=$(./yq e '.apple="tree"' test.yml)
+
+  assertEquals "$expected" "$X"
+}
+
+testEmptyWithExpressionEvalAll() {
+  rm test.yml
+  touch test.yml
+  expected="apple: tree"
+
+  X=$(./yq ea '.apple="tree"' test.yml)
+
+  assertEquals "$expected" "$X"
+}
+
+
+source ./scripts/shunit2

acceptance_tests/flags.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yml || true
+  cat >test.yml <<EOL
+# comment
+EOL
+}
+
+testStringInterpolation() {
+    X=$(./yq -n '"Mike \(3 + 4)"')
+    assertEquals "Mike 7" "$X"
+}
+
+testNoStringInterpolation() {
+    X=$(./yq --string-interpolation=f -n '"Mike \(3 + 4)"')
+    assertEquals "Mike \(3 + 4)" "$X"
+}
+
+
+source ./scripts/shunit2

acceptance_tests/front-matter.sh

@@ -0,0 +1,76 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yml || true
+  cat >test.yml <<EOL
+---
+a: apple
+b: cat
+---
+not yaml
+c: at
+EOL
+}
+
+testFrontMatterProcessEval() {
+  read -r -d '' expected << EOM
+---
+a: apple
+b: dog
+---
+not yaml
+c: at
+EOM
+  ./yq e --front-matter="process" '.b = "dog"' test.yml -i
+  assertEquals "$expected" "$(cat test.yml)"
+}
+
+testFrontMatterProcessEvalAll() {
+  read -r -d '' expected << EOM
+---
+a: apple
+b: dog
+---
+not yaml
+c: at
+EOM
+  ./yq ea --front-matter="process" '.b = "dog"' test.yml -i
+  assertEquals "$expected" "$(cat test.yml)"
+}
+
+testFrontMatterExtractEval() {
+    cat >test.yml <<EOL
+a: apple
+b: cat
+---
+not yaml
+c: at
+EOL
+
+  read -r -d '' expected << EOM
+a: apple
+b: dog
+EOM
+  ./yq e --front-matter="extract" '.b = "dog"' test.yml -i
+  assertEquals "$expected" "$(cat test.yml)"
+}
+
+testFrontMatterExtractEvalAll() {
+  cat >test.yml <<EOL
+a: apple
+b: cat
+---
+not yaml
+c: at
+EOL
+
+  read -r -d '' expected << EOM
+a: apple
+b: dog
+EOM
+  ./yq ea --front-matter="extract" '.b = "dog"' test.yml -i
+  assertEquals "$expected" "$(cat test.yml)"
+}
+
+
+source ./scripts/shunit2

acceptance_tests/header-processing-off.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yml || true
+  
+}
+
+testLineCountFirstLineComment() {
+  cat >test.yml <<EOL
+#test123 
+abc: 123 
+test123: 123123 
+#comment 
+lalilu: lalilu
+EOL
+
+  X=$(./yq '.lalilu | line' --header-preprocess=false < test.yml)
+  assertEquals "5" "$X"
+}
+
+testArrayOfDocs() {
+  cat >test.yml <<EOL
+---
+# leading comment doc 1
+a: 1
+---
+# leading comment doc 2
+a: 2
+EOL
+
+read -r -d '' expected << EOM
+- # leading comment doc 1
+  a: 1
+- # leading comment doc 2
+  a: 2
+EOM
+
+  X=$(./yq ea '[.]' --header-preprocess=false < test.yml)
+  assertEquals "$expected" "$X"
+
+}
+
+source ./scripts/shunit2

acceptance_tests/inputs-format-auto.sh

@@ -0,0 +1,249 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yml 2>/dev/null || true
+  rm test*.toml 2>/dev/null || true
+  rm test*.tfstate 2>/dev/null || true
+  rm test*.json 2>/dev/null || true
+  rm test*.properties 2>/dev/null || true
+  rm test*.csv 2>/dev/null || true
+  rm test*.tsv 2>/dev/null || true
+  rm test*.xml 2>/dev/null || true
+}
+
+testInputJson() {
+  cat >test.json <<EOL
+{ "mike" : { "things": "cool" } }
+EOL
+
+  read -r -d '' expected << EOM
+{
+  "mike": {
+    "things": "cool"
+  }
+}
+EOM
+
+  X=$(./yq test.json)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea test.json)
+  assertEquals "$expected" "$X"
+}
+
+testInputToml() {
+  cat >test.toml <<EOL
+[owner]
+name = "Tom Preston-Werner"
+dob = 1979-05-27T07:32:00-08:00
+EOL
+
+  read -r -d '' expected << EOM
+owner:
+  name: Tom Preston-Werner
+  dob: 1979-05-27T07:32:00-08:00
+EOM
+
+  X=$(./yq -oy test.toml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -oy test.toml)
+  assertEquals "$expected" "$X"
+}
+
+testInputTfstate() {
+  cat >test.tfstate <<EOL
+{ "mike" : { "things": "cool" } }
+EOL
+
+  read -r -d '' expected << EOM
+{"mike": {"things": "cool"}}
+EOM
+
+  X=$(./yq test.tfstate)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea test.tfstate)
+  assertEquals "$expected" "$X"
+}
+
+testInputJsonOutputYaml() {
+  cat >test.json <<EOL
+{ "mike" : { "things": "cool" } }
+EOL
+
+  read -r -d '' expected << EOM
+mike:
+  things: cool
+EOM
+
+  X=$(./yq test.json -oy)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea test.json -oy)
+  assertEquals "$expected" "$X"
+}
+
+testInputProperties() {
+  cat >test.properties <<EOL
+mike.things = hello
+EOL
+
+  read -r -d '' expected << EOM
+mike.things = hello
+EOM
+
+  X=$(./yq e test.properties)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq test.properties)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea test.properties)
+  assertEquals "$expected" "$X"
+}
+
+testInputPropertiesGitHubAction() {
+  cat >test.properties <<EOL
+mike.things = hello
+EOL
+
+  read -r -d '' expected << EOM
+mike.things = hello
+EOM
+
+  X=$(cat /dev/null | ./yq e test.properties)
+  assertEquals "$expected" "$X"
+
+  X=$(cat /dev/null | ./yq ea test.properties)
+  assertEquals "$expected" "$X"
+}
+
+testInputCSV() {
+  cat >test.csv <<EOL
+fruit,yumLevel
+apple,5
+banana,4
+EOL
+
+  read -r -d '' expected << EOM
+fruit,yumLevel
+apple,5
+banana,4
+EOM
+
+  X=$(./yq e test.csv)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea test.csv)
+  assertEquals "$expected" "$X"
+}
+
+testInputCSVUTF8() {
+  read -r -d '' expected << EOM
+id,first,last
+1,john,smith
+1,jane,smith
+EOM
+
+  X=$(./yq utf8.csv)
+  assertEquals "$expected" "$X"
+}
+
+testInputTSV() {
+  cat >test.tsv <<EOL
+fruit	yumLevel
+apple	5
+banana	4
+EOL
+
+  read -r -d '' expected << EOM
+fruit	yumLevel
+apple	5
+banana	4
+EOM
+
+  X=$(./yq e test.tsv)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea test.tsv)
+  assertEquals "$expected" "$X"
+}
+
+
+
+
+testInputXml() {
+  cat >test.xml <<EOL
+<cat legs="4">BiBi</cat>
+EOL
+
+  read -r -d '' expected << EOM
+<cat legs="4">BiBi</cat>
+EOM
+
+  X=$(./yq e test.xml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea test.xml)
+  assertEquals "$expected" "$X"
+}
+
+testInputXmlNamespaces() {
+  cat >test.xml <<EOL
+<?xml version="1.0"?>
+<map xmlns="some-namespace" xmlns:xsi="some-instance" xsi:schemaLocation="some-url">
+</map>
+EOL
+
+  read -r -d '' expected << EOM
+<?xml version="1.0"?>
+<map xmlns="some-namespace" xmlns:xsi="some-instance" xsi:schemaLocation="some-url"></map>
+EOM
+
+  X=$(./yq e test.xml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea test.xml)
+  assertEquals "$expected" "$X"
+}
+
+
+
+testInputXmlStrict() {
+  cat >test.xml <<EOL
+<?xml version="1.0"?>
+<!DOCTYPE root [
+<!ENTITY writer "Catherine.">
+<!ENTITY copyright "(r) Great">
+]>
+<root>
+    <item>&writer;&copyright;</item>
+</root>
+EOL
+
+  X=$(./yq --xml-strict-mode test.xml  2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: bad file 'test.xml': XML syntax error on line 7: invalid character entity &writer;" "$X"
+
+  X=$(./yq ea --xml-strict-mode test.xml  2>&1)
+  assertEquals "Error: bad file 'test.xml': XML syntax error on line 7: invalid character entity &writer;" "$X"
+}
+
+testInputXmlGithubAction() {
+  cat >test.xml <<EOL
+<cat legs="4">BiBi</cat>
+EOL
+
+  read -r -d '' expected << EOM
+<cat legs="4">BiBi</cat>
+EOM
+
+  X=$(cat /dev/null | ./yq e test.xml)
+  assertEquals "$expected" "$X"
+
+  X=$(cat /dev/null | ./yq ea test.xml)
+  assertEquals "$expected" "$X"
+}
+
+source ./scripts/shunit2

acceptance_tests/inputs-format.sh

@@ -0,0 +1,258 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yml 2>/dev/null || true
+  rm test*.properties 2>/dev/null || true
+  rm test*.csv 2>/dev/null || true
+  rm test*.tsv 2>/dev/null || true
+  rm test*.xml 2>/dev/null || true
+}
+
+testInputProperties() {
+  cat >test.properties <<EOL
+mike.things = hello
+EOL
+
+  read -r -d '' expected << EOM
+mike:
+  things: hello
+EOM
+
+  X=$(./yq e -p=props test.properties)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -p=props test.properties)
+  assertEquals "$expected" "$X"
+}
+
+testInputPropertiesGitHubAction() {
+  cat >test.properties <<EOL
+mike.things = hello
+EOL
+
+  read -r -d '' expected << EOM
+mike:
+  things: hello
+EOM
+
+  X=$(cat /dev/null | ./yq e -p=props test.properties)
+  assertEquals "$expected" "$X"
+
+  X=$(cat /dev/null | ./yq ea -p=props test.properties)
+  assertEquals "$expected" "$X"
+}
+
+testInputCSV() {
+  cat >test.csv <<EOL
+fruit,yumLevel
+apple,5
+banana,4
+EOL
+
+  read -r -d '' expected << EOM
+- fruit: apple
+  yumLevel: 5
+- fruit: banana
+  yumLevel: 4
+EOM
+
+  X=$(./yq e -p=csv test.csv)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -p=csv test.csv)
+  assertEquals "$expected" "$X"
+}
+
+testInputCSVCustomSeparator() {
+  cat >test.csv <<EOL
+fruit;yumLevel
+apple;5
+banana;4
+EOL
+
+  read -r -d '' expected << EOM
+- fruit: apple
+  yumLevel: 5
+- fruit: banana
+  yumLevel: 4
+EOM
+
+  X=$(./yq -p=csv --csv-separator ";" test.csv)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -p=csv --csv-separator ";" test.csv)
+  assertEquals "$expected" "$X"
+}
+
+testInputCSVNoAuto() {
+  cat >test.csv <<EOL
+thing1
+name: cat
+EOL
+
+  read -r -d '' expected << EOM
+- thing1: 'name: cat'
+EOM
+
+  X=$(./yq --csv-auto-parse=f test.csv -oy)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --csv-auto-parse=f test.csv -oy)
+  assertEquals "$expected" "$X"
+}
+
+testInputTSVNoAuto() {
+  cat >test.tsv <<EOL
+thing1
+name: cat
+EOL
+
+  read -r -d '' expected << EOM
+- thing1: 'name: cat'
+EOM
+
+  X=$(./yq --tsv-auto-parse=f test.tsv -oy)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --tsv-auto-parse=f test.tsv -oy)
+  assertEquals "$expected" "$X"
+}
+
+testInputCSVUTF8() {
+  read -r -d '' expected << EOM
+- id: 1
+  first: john
+  last: smith
+- id: 1
+  first: jane
+  last: smith
+EOM
+
+  X=$(./yq -p=csv utf8.csv)
+  assertEquals "$expected" "$X"
+}
+
+testInputTSV() {
+  cat >test.tsv <<EOL
+fruit	yumLevel
+apple	5
+banana	4
+EOL
+
+  read -r -d '' expected << EOM
+- fruit: apple
+  yumLevel: 5
+- fruit: banana
+  yumLevel: 4
+EOM
+
+  X=$(./yq e -p=t test.tsv)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -p=t test.tsv)
+  assertEquals "$expected" "$X"
+}
+
+
+
+
+testInputXml() {
+  cat >test.yml <<EOL
+<cat legs="4">BiBi</cat>
+EOL
+
+  read -r -d '' expected << EOM
+cat:
+  +content: BiBi
+  +@legs: "4"
+EOM
+
+  X=$(./yq e -p=xml test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -p=xml test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testInputXmlNamespaces() {
+  cat >test.xml <<EOL
+<?xml version="1.0"?>
+<map xmlns="some-namespace" xmlns:xsi="some-instance" xsi:schemaLocation="some-url">
+</map>
+EOL
+
+  read -r -d '' expected << EOM
++p_xml: version="1.0"
+map:
+  +@xmlns: some-namespace
+  +@xmlns:xsi: some-instance
+  +@xsi:schemaLocation: some-url
+EOM
+
+  X=$(./yq e -p=xml test.xml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -p=xml test.xml)
+  assertEquals "$expected" "$X"
+}
+
+testInputXmlRoundtrip() {
+  cat >test.yml <<EOL
+<?xml version="1.0"?>
+<!DOCTYPE config SYSTEM "/etc/iwatch/iwatch.dtd" >
+<map xmlns="some-namespace" xmlns:xsi="some-instance" xsi:schemaLocation="some-url">Meow</map>
+EOL
+
+  read -r -d '' expected << EOM
+<?xml version="1.0"?>
+<!DOCTYPE config SYSTEM "/etc/iwatch/iwatch.dtd" >
+<map xmlns="some-namespace" xmlns:xsi="some-instance" xsi:schemaLocation="some-url">Meow</map>
+EOM
+
+  X=$(./yq -p=xml -o=xml test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -p=xml -o=xml test.yml)
+  assertEquals "$expected" "$X"
+}
+
+
+testInputXmlStrict() {
+  cat >test.yml <<EOL
+<?xml version="1.0"?>
+<!DOCTYPE root [
+<!ENTITY writer "Catherine.">
+<!ENTITY copyright "(r) Great">
+]>
+<root>
+    <item>&writer;&copyright;</item>
+</root>
+EOL
+
+  X=$(./yq -p=xml --xml-strict-mode test.yml -o=xml 2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: bad file 'test.yml': XML syntax error on line 7: invalid character entity &writer;" "$X"
+
+  X=$(./yq ea -p=xml --xml-strict-mode test.yml -o=xml 2>&1)
+  assertEquals "Error: bad file 'test.yml': XML syntax error on line 7: invalid character entity &writer;" "$X"
+}
+
+testInputXmlGithubAction() {
+  cat >test.yml <<EOL
+<cat legs="4">BiBi</cat>
+EOL
+
+  read -r -d '' expected << EOM
+cat:
+  +content: BiBi
+  +@legs: "4"
+EOM
+
+  X=$(cat /dev/null | ./yq e -p=xml test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(cat /dev/null | ./yq ea -p=xml test.yml)
+  assertEquals "$expected" "$X"
+}
+
+source ./scripts/shunit2

acceptance_tests/leading-separator.sh

@@ -0,0 +1,529 @@
+#!/bin/bash
+
+
+# examples where header-preprocess is required
+
+setUp() {
+  rm test*.yml || true
+  cat >test.yml <<EOL
+---
+a: test
+EOL
+}
+
+testLeadingSeparatorWithDoc() {
+  cat >test.yml <<EOL
+# hi peeps
+# cool
+---
+a: test
+---
+b: cool
+EOL
+
+  read -r -d '' expected << EOM
+# hi peeps
+# cool
+---
+a: thing
+---
+b: cool
+EOM
+
+  X=$(./yq e '(select(di == 0) | .a) = "thing"' - < test.yml)
+  assertEquals "$expected" "$X"
+}
+
+
+testLeadingSeparatorWithNewlinesNewDoc() {
+  cat >test.yml <<EOL
+# hi peeps
+# cool
+
+
+---
+a: test
+---
+b: cool
+EOL
+
+  read -r -d '' expected << EOM
+# hi peeps
+# cool
+
+
+---
+a: thing
+---
+b: cool
+EOM
+
+  X=$(./yq e '(select(di == 0) | .a) = "thing"' - < test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorWithNewlinesMoreComments() {
+  cat >test.yml <<EOL
+# hi peeps
+# cool
+
+---
+# great
+
+a: test
+---
+b: cool
+EOL
+
+  read -r -d '' expected << EOM
+# hi peeps
+# cool
+
+---
+# great
+
+a: thing
+---
+b: cool
+EOM
+
+  X=$(./yq e '(select(di == 0) | .a) = "thing"' - < test.yml)
+  assertEquals "$expected" "$X"
+}
+
+
+testLeadingSeparatorWithDirective() {
+  cat >test.yml <<EOL
+%YAML 1.1
+---
+this: should really work
+EOL
+
+  read -r -d '' expected << EOM
+%YAML 1.1
+---
+this: should really work
+EOM
+
+  X=$(./yq < test.yml)
+  assertEquals "$expected" "$X"
+}
+
+
+testLeadingSeparatorPipeIntoEvalSeq() {
+  X=$(./yq e - < test.yml)
+  expected=$(cat test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorExtractField() {
+  X=$(./yq e '.a' - < test.yml)
+  assertEquals "test" "$X"
+}
+
+testLeadingSeparatorExtractFieldWithCommentsAfterSep() {
+  cat >test.yml <<EOL
+---
+# hi peeps
+# cool
+a: test
+EOL
+  X=$(./yq e '.a' test.yml)
+  assertEquals "test" "$X"
+}
+
+testLeadingSeparatorExtractFieldWithCommentsBeforeSep() {
+  cat >test.yml <<EOL
+# hi peeps
+# cool
+---
+a: test
+EOL
+  X=$(./yq e '.a' test.yml)
+  assertEquals "test" "$X"
+}
+
+
+testLeadingSeparatorExtractFieldMultiDoc() {
+  cat >test.yml <<EOL
+---
+a: test
+---
+a: test2
+EOL
+
+  read -r -d '' expected << EOM
+test
+---
+test2
+EOM
+  X=$(./yq e '.a' test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorExtractFieldMultiDocWithComments() {
+  cat >test.yml <<EOL
+# here
+---
+# there
+a: test
+# wherever
+---
+# you are
+a: test2
+# woop
+EOL
+
+  read -r -d '' expected << EOM
+test
+---
+test2
+EOM
+  X=$(./yq e '.a' test.yml)
+  assertEquals "$expected" "$X"
+}
+
+
+testLeadingSeparatorEvalSeq() {
+  X=$(./yq e test.yml)
+  expected=$(cat test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorPipeIntoEvalAll() {
+  X=$(./yq ea - < test.yml)
+  expected=$(cat test.yml)
+  assertEquals "$expected" "$X"
+}
+
+
+testLeadingSeparatorEvalAll() {
+  X=$(./yq ea test.yml)
+  expected=$(cat test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiDocEvalSimple() {
+  read -r -d '' expected << EOM
+---
+a: test
+---
+version: 3
+application: MyApp
+EOM
+
+
+  X=$(./yq e '.' test.yml examples/order.yaml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiDocInOneFile() {
+  cat >test.yml <<EOL
+---
+# hi peeps
+# cool
+a: test
+---
+b: things
+EOL
+  expected=$(cat test.yml)
+  X=$(./yq e '.' test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiDocInOneFileEvalAll() {
+  cat >test.yml <<EOL
+---
+# hi peeps
+# cool
+a: test
+---
+b: things
+EOL
+  expected=$(cat test.yml)
+  X=$(./yq ea '.' test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiDocEvalComments() {
+  cat >test.yml <<EOL
+# hi peeps
+# cool
+a: test
+EOL
+
+cat >test2.yml <<EOL
+# this is another doc
+# great
+b: sane
+EOL
+
+  read -r -d '' expected << EOM
+# hi peeps
+# cool
+a: test
+---
+# this is another doc
+# great
+b: sane
+EOM
+
+
+  X=$(./yq e '.' test.yml test2.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiDocEvalCommentsTrailingSep() {
+  cat >test.yml <<EOL
+# hi peeps
+# cool
+---
+a: test
+EOL
+
+cat >test2.yml <<EOL
+# this is another doc
+# great
+---
+b: sane
+EOL
+
+  read -r -d '' expected << EOM
+# hi peeps
+# cool
+---
+a: test
+---
+# this is another doc
+# great
+---
+b: sane
+EOM
+
+
+  X=$(./yq e '.' test.yml test2.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiMultiDocEvalCommentsTrailingSep() {
+  cat >test.yml <<EOL
+# hi peeps
+# cool
+---
+a: test
+---
+a1: test2
+EOL
+
+cat >test2.yml <<EOL
+# this is another doc
+# great
+---
+b: sane
+---
+b2: cool
+EOL
+
+  read -r -d '' expected << EOM
+# hi peeps
+# cool
+---
+a: test
+---
+a1: test2
+---
+# this is another doc
+# great
+---
+b: sane
+---
+b2: cool
+EOM
+
+
+  X=$(./yq e '.' test.yml test2.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiDocEvalCommentsLeadingSep() {
+  cat >test.yml <<EOL
+---
+# hi peeps
+# cool
+a: test
+EOL
+
+cat >test2.yml <<EOL
+---
+# this is another doc
+# great
+b: sane
+EOL
+
+  read -r -d '' expected << EOM
+---
+# hi peeps
+# cool
+a: test
+---
+# this is another doc
+# great
+b: sane
+EOM
+
+
+  X=$(./yq e '.' test.yml test2.yml)
+  assertEquals "$expected" "$X"
+}
+
+# https://github.com/mikefarah/yq/issues/919
+testLeadingSeparatorDoesNotBreakCommentsOnOtherFiles() {
+  cat >test.yml <<EOL
+# a1
+a: 1
+# a2
+EOL
+
+cat >test2.yml <<EOL
+# b1
+b: 2
+# b2
+EOL
+
+  read -r -d '' expected << EOM
+# a1
+a: 1
+# a2
+
+# b1
+b: 2
+# b2
+EOM
+
+
+  X=$(./yq ea 'select(fi == 0) * select(fi == 1)' test.yml test2.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiDocEvalCommentsStripComments() {
+  cat >test.yml <<EOL
+---
+# hi peeps
+# cool
+a: test
+---
+# this is another doc
+# great
+b: sane
+EOL
+
+  # it will be hard to remove that top level separator
+  read -r -d '' expected << EOM
+a: test
+---
+b: sane
+EOM
+
+  X=$(./yq e '... comments=""'  test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiDocEvalCommentsLeadingSepNoDocFlag() {
+  cat >test.yml <<EOL
+---
+# hi peeps
+# cool
+a: test
+---
+# this is another doc
+# great
+b: sane
+EOL
+
+  read -r -d '' expected << EOM
+# hi peeps
+# cool
+a: test
+# this is another doc
+# great
+b: sane
+EOM
+
+
+  X=$(./yq e '.' --no-doc test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiDocEvalJsonFlag() {
+  cat >test.yml <<EOL
+---
+# hi peeps
+# cool
+a: test
+EOL
+
+cat >test2.yml <<EOL
+---
+# this is another doc
+# great
+b: sane
+EOL
+
+  read -r -d '' expected << EOM
+{
+  "a": "test"
+}
+{
+  "b": "sane"
+}
+EOM
+
+
+  X=$(./yq e '.' -j test.yml test2.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiDocEvalAllJsonFlag() {
+  cat >test.yml <<EOL
+---
+# hi peeps
+# cool
+a: test
+EOL
+
+cat >test2.yml <<EOL
+---
+# this is another doc
+# great
+b: sane
+EOL
+
+  read -r -d '' expected << EOM
+{
+  "a": "test"
+}
+{
+  "b": "sane"
+}
+EOM
+
+
+  X=$(./yq ea '.' -j test.yml test2.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLeadingSeparatorMultiDocEvalAll() {
+  read -r -d '' expected << EOM
+---
+a: test
+---
+version: 3
+application: MyApp
+EOM
+
+
+  X=$(./yq ea '.' test.yml examples/order.yaml)
+  assertEquals "$expected" "$X"
+}
+
+source ./scripts/shunit2

acceptance_tests/load-file.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+testLoadFileNotExist() {
+  result=$(./yq e -n 'load("cat.yml")' 2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: failed to load cat.yml: open cat.yml: no such file or directory" "$result"
+}
+
+testLoadFileExpNotExist() {
+  result=$(./yq e -n 'load(.a)' 2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: filename expression returned nil" "$result"
+}
+
+testStrLoadFileNotExist() {
+  result=$(./yq e -n 'strload("cat.yml")' 2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: failed to load cat.yml: open cat.yml: no such file or directory" "$result"
+}
+
+testStrLoadFileExpNotExist() {
+  result=$(./yq e -n 'strload(.a)' 2>&1)
+  assertEquals 1 $?
+  assertEquals "Error: filename expression returned nil" "$result"
+}
+
+source ./scripts/shunit2

acceptance_tests/nul-separator.sh

@@ -0,0 +1,286 @@
+#!/bin/bash
+
+setUp() {
+    rm test*.yml || true
+}
+
+## Convenient bash shortcut to read records of NUL separated values
+## from stdin the safe way. See example usage in the next tests.
+read-0() {
+    local eof="" IFS=''
+    while [ "$1" ]; do
+        ## - The `-r` avoids bad surprise with '\n' and other interpreted
+        ##   sequences that can be read.
+        ## - The `-d ''` is the (strange?) way to refer to NUL delimiter.
+        ## - The `--` is how to avoid unpleasant surprises if your
+        ##   "$1" starts with "-" (minus) sign. This protection also
+        ##   will produce a readable error if you want to try to start
+        ##   your variable names with a "-".
+        read -r -d '' -- "$1" || eof=1
+        shift
+    done
+    [ -z "$eof" ] ## fail on EOF
+}
+
+## Convenient bash shortcut to be used with the next function `p-err`
+## to read NUL separated values the safe way AND catch any errors from
+## the process creating the stream of NUL separated data.  See example
+## usage in the tests.
+read-0-err() {
+    local ret="$1" eof="" idx=0 last=
+    read -r -- "${ret?}" <<<"0"
+    shift
+    while [ "$1" ]; do
+        last=$idx
+        read -r -d '' -- "$1" || {
+            ## Put this last value in ${!ret}
+            eof="$1"
+            read -r -- "$ret" <<<"${!eof}"
+            break
+        }
+        ((idx++))
+        shift
+    done
+    [ -z "$eof" ] || {
+        if [ "$last" != 0 ]; then
+            ## Uhoh, we have no idea if the errorlevel of the internal
+            ## command was properly delimited with a NUL char, and
+            ## anyway something went really wrong at least about the
+            ## number of fields separated by NUL char and the one
+            ## expected.
+            echo "Error: read-0-err couldn't fill all value $ret = '${!ret}', '$eof', '${!eof}'" >&2
+            read -r -- "$ret" <<<"not-enough-values"
+        else
+            if ! [[ "${!ret}" =~ ^[0-9]+$ && "${!ret}" -ge 0 && "${!ret}" -le 127 ]]; then
+                ## This could happen if you don't use `p-err` wrapper,
+                ## or used stdout in unexpected ways in your inner
+                ## command.
+                echo "Error: last value is not a number, did you finish with an errorlevel ?" >&2
+                read -r -- "$ret" <<<"last-value-not-a-number"
+            fi
+        fi
+        false
+    }
+}
+
+## Simply runs command given as argument and adds errorlevel in the
+## standard output. Is expected to be used in tandem with
+## `read-0-err`.
+p-err() {
+    local exp="$1"
+    "$@"
+    printf "%s" "$?"
+}
+
+wyq-r() {
+    local exp="$1"
+    ./yq e -0 -r=false "$1"
+    printf "%s" "$?"
+}
+
+testBasicUsageRaw() {
+  cat >test.yml <<EOL
+a: foo
+b: bar
+EOL
+
+  printf "foo\0bar\0" > expected.out
+
+  ## We need to compare binary content here. We have to filter the compared
+  ## content through a representation that gets rid of NUL chars but accurately
+  ## transcribe the content.
+  ## Also as it would be nice to have a pretty output in case the test fails,
+  ## we use here 'hd': a widely available shortcut to 'hexdump' that will
+  ## pretty-print any binary to it's hexadecimal representation.
+  ##
+  ## Note that the standard `assertEquals` compare its arguments
+  ## value, but they can't hold NUL characters (this comes from the
+  ## limitation of the C API of `exec*(..)` functions that requires
+  ## `const char *arv[]`). And these are NUL terminated strings.  As a
+  ## consequence, the NUL characters gets removed in bash arguments.
+  assertEquals "$(hd expected.out)" \
+               "$(./yq e -0 '.a, .b' test.yml | hd)"
+
+  rm expected.out
+}
+
+testBasicUsage() {
+  local a b
+  cat >test.yml <<EOL
+a: foo
+b: bar
+EOL
+
+  ## We provide 2 values, and ask to fill 2 variables.
+  read-0 a b < <(./yq e -0 '.a, .b' test.yml)
+  assertEquals "$?" "0"      ## Everything is fine
+  assertEquals "foo" "$a"    ## Values are correctly parsed
+  assertEquals "bar" "$b"
+
+  a=YYY ; b=XXX
+  ## Not enough values provided to fill `a` and `b`.
+  read-0 a b < <(./yq e -0 '.a' test.yml)
+  assertEquals "$?" "1"      ## An error was emitted
+  assertEquals "foo" "$a"    ## First value was correctly parsed
+  assertEquals "" "$b"       ## Second was still reset
+
+  ## Error from inner command are not catchable !. Use
+  ## `read-0-err`/`p-err` for that.
+  read-0 a < <(printf "\0"; ./yq e -0 'xxx' test.yml; )
+  assertEquals "$?" "0"
+
+}
+
+testBasicUsageJson() {
+  cat >test.yml <<EOL
+a:
+  x: foo
+b: bar
+EOL
+
+  read-0 a b < <(./yq e -0 -o=json '.a, .b' test.yml)
+
+  assertEquals '{
+  "x": "foo"
+}' "$a"
+  assertEquals '"bar"' "$b"
+
+}
+
+testFailWithValueContainingNUL() {
+  local a b c
+  ## Note that value of field 'a' actually contains a NUL char !
+  cat >test.yml <<EOL
+a: "foo\u0000bar"
+b: 1
+c: |
+  wiz
+  boom
+EOL
+
+  ## We are looking for trouble with asking to separated fields with NUL
+  ## char and requested value `.a` actually contains itself a NUL char !
+  read-0 a b c < <(./yq e -0 '.a, .b, .c' test.yml)
+  assertNotEquals "0" "$?"   ## read-0 failed to fill all values
+
+  ## But here, we can request for one value, even if `./yq` fails
+  read-0 b < <(./yq e -0 '.b, .a' test.yml)
+  assertEquals "0" "$?"   ## read-0 succeeds at feeding the first value
+  ## Note: to catch the failure of `yq`, see in the next tests the usage
+  ## of `read-0-err`.
+
+  ## using -r=false solves any NUL containing value issues, but keeps
+  ## all in YAML representation:
+  read-0 a b c < <(./yq e -0 -r=false '.a, .b, .c' test.yml)
+  assertEquals "0" "$?"    ## All goes well despite asking for `a` value
+
+  assertEquals '"foo\0bar"' "$a"   ## This is a YAML string representation
+  assertEquals '1' "$b"
+  assertEquals '|
+  wiz
+  boom' "$c"
+}
+
+testStandardLoop() {
+    local E a b res
+
+    ## Here everything is normal: 4 values, that will be paired
+    ## in key/values.
+    cat >test.yml <<EOL
+- yay
+- wiz
+- hop
+- pow
+EOL
+
+    res=""
+    while read-0-err E a b; do
+        res+="$a: $b;"
+    done < <(p-err ./yq -0 '.[]' test.yml)
+
+    assertEquals "0" "$E"                     ## errorlevel of internal command
+    assertEquals "yay: wiz;hop: pow;" "$res"  ## expected result
+}
+
+testStandardLoopWithoutEnoughValues() {
+    local E a b res
+
+    ## Here 5 values, there will be a missing value when reading
+    ## pairs of value.
+    cat >test.yml <<EOL
+- yay
+- wiz
+- hop
+- pow
+- kwak
+EOL
+
+    res=""
+    ## The loop will succeed 2 times then fail
+    while read-0-err E a b; do
+        res+="$a: $b;"
+    done < <(p-err ./yq -0 '.[]' test.yml)
+
+    assertEquals "not-enough-values" "$E"     ## Not enough value error
+    assertEquals "yay: wiz;hop: pow;" "$res"  ## the 2 full key/value pairs
+
+}
+
+testStandardLoopWithInternalCmdError() {
+    local E a b res
+
+    ## Note the third value contains a NUL char !
+    cat >test.yml <<EOL
+- yay
+- wiz
+- "foo\0bar"
+- hop
+- pow
+EOL
+
+    res=""
+    ## It should be only upon the second pass in the loop that
+    ## read-0-err will catch the fact that there is an error !
+    while read-0-err E a b; do
+        res+="$a: $b;"
+    done < <(p-err ./yq -0 '.[]' test.yml)
+    assertEquals "1" "$E"            ## Internal command errorlevel (from `./yq`)
+    assertEquals "yay: wiz;" "$res"  ## first 2 values were ok at least
+
+}
+
+testStandardLoopNotEnoughErrorEatsCmdError() {
+    local E a b res
+
+    ## Because of possible edge cases where the internal errorlevel
+    ## reported by `p-err` in the standard output might be mangled
+    ## with the unfinished record, `read-0-err E ...` will NOT report
+    ## the internal command error in the variable E and instead will
+    ## store the value 'not-enough-values'. In real world, anyway, you
+    ## will want to react the same if the internal command failed
+    ## and/or you didn't get as much values as expected while
+    ## reading. Keep in mind also that standard error is not
+    ## swallowed, so you can read reports from the inner command AND
+    ## from `read-0-err`.
+
+    ## Here, note that the fourth value contains a NUL char !
+    cat >test.yml <<EOL
+- yay
+- wiz
+- hop
+- "foo\0bar"
+- pow
+EOL
+
+    res=""
+    ## It should be only upon the second loop that read-0-err will catch
+    ## the fact that there are not enough data to fill the requested variables
+    while read-0-err E a b; do
+        res+="$a: $b;"
+    done < <(p-err ./yq -0 '.[]' test.yml)
+    assertEquals "not-enough-values" "$E"          ## Not enough values error eats internal error !
+    assertEquals "yay: wiz;" "$res"  ## first 2 values were ok at least
+}
+
+
+source ./scripts/shunit2

acceptance_tests/output-format.sh

@@ -0,0 +1,343 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yml || true
+}
+
+testOutputJsonDeprecated() {
+  cat >test.yml <<EOL
+a: {b: ["cat"]}
+EOL
+
+  read -r -d '' expected << EOM
+{
+  "a": {
+    "b": [
+      "cat"
+    ]
+  }
+}
+EOM
+
+  X=$(./yq e -j test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -j test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testOutputJson() {
+  cat >test.yml <<EOL
+a: {b: ["cat"]}
+EOL
+
+  read -r -d '' expected << EOM
+{
+  "a": {
+    "b": [
+      "cat"
+    ]
+  }
+}
+EOM
+
+  X=$(./yq e --output-format=json test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --output-format=json test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testOutputYamlRawDefault() {
+  cat >test.yml <<EOL
+a: "cat"
+EOL
+
+  X=$(./yq e  '.a' test.yml)
+  assertEquals "cat" "$X"
+
+  X=$(./yq ea '.a' test.yml)
+  assertEquals "cat" "$X"
+}
+
+testOutputYamlRawOff() {
+  cat >test.yml <<EOL
+a: "cat"
+EOL
+
+  X=$(./yq e -r=false '.a' test.yml)
+  assertEquals "\"cat\"" "$X"
+
+  X=$(./yq ea -r=false '.a' test.yml)
+  assertEquals "\"cat\"" "$X"
+}
+
+testOutputYamlRawOnRoot() {
+  cat >test.yml <<EOL
+'a'
+EOL
+
+  X=$(./yq e -r '.' test.yml)
+  assertEquals "a" "$X"
+}
+
+testOutputJsonRaw() {
+  cat >test.yml <<EOL
+a: cat
+EOL
+
+  X=$(./yq e -r --output-format=json '.a' test.yml)
+  assertEquals "cat" "$X"
+
+  X=$(./yq ea -r --output-format=json '.a' test.yml)
+  assertEquals "cat" "$X"
+}
+
+testOutputJsonDefault() {
+  cat >test.yml <<EOL
+a: cat
+EOL
+
+  X=$(./yq e --output-format=json '.a' test.yml)
+  assertEquals "\"cat\"" "$X"
+
+  X=$(./yq ea --output-format=json '.a' test.yml)
+  assertEquals "\"cat\"" "$X"
+}
+
+
+testOutputJsonShort() {
+  cat >test.yml <<EOL
+a: {b: ["cat"]}
+EOL
+
+  read -r -d '' expected << EOM
+{
+  "a": {
+    "b": [
+      "cat"
+    ]
+  }
+}
+EOM
+
+  X=$(./yq e -o=j test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -o=j test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testOutputProperties() {
+  cat >test.yml <<EOL
+a: {b: {c: ["cat cat"]}}
+EOL
+
+  read -r -d '' expected << EOM
+a.b.c.0 = cat cat
+EOM
+
+  X=$(./yq e --output-format=props test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --output-format=props test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testOutputPropertiesDontUnwrap() {
+  cat >test.yml <<EOL
+a: {b: {c: ["cat cat"]}}
+EOL
+
+  read -r -d '' expected << EOM
+a.b.c.0 = "cat cat"
+EOM
+
+  X=$(./yq e -r=false --output-format=props test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -r=false --output-format=props test.yml)
+  assertEquals "$expected" "$X"
+}
+
+
+testOutputPropertiesShort() {
+  cat >test.yml <<EOL
+a: {b: {c: ["cat cat"]}}
+EOL
+
+  read -r -d '' expected << EOM
+a.b.c.0 = cat cat
+EOM
+
+  X=$(./yq e -o=p test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -o=p test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testOutputCSV() {
+  cat >test.yml <<EOL
+- fruit: apple
+  yumLevel: 5
+- fruit: banana
+  yumLevel: 4
+EOL
+
+  read -r -d '' expected << EOM
+fruit,yumLevel
+apple,5
+banana,4
+EOM
+
+  X=$(./yq -o=c test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -o=csv test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testOutputCSVCustomSeparator() {
+  cat >test.yml <<EOL
+- fruit: apple
+  yumLevel: 5
+- fruit: banana
+  yumLevel: 4
+EOL
+
+  read -r -d '' expected << EOM
+fruit;yumLevel
+apple;5
+banana;4
+EOM
+
+  X=$(./yq -oc --csv-separator ";" test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -o=csv --csv-separator ";" test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testOutputTSV() {
+  cat >test.yml <<EOL
+- fruit: apple
+  yumLevel: 5
+- fruit: banana
+  yumLevel: 4
+EOL
+
+  read -r -d '' expected << EOM
+fruit	yumLevel
+apple	5
+banana	4
+EOM
+
+  X=$(./yq -o=t test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea -o=tsv test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testOutputXml() {
+  cat >test.yml <<EOL
+a: {b: {c: ["cat"]}}
+EOL
+
+  read -r -d '' expected << EOM
+<a>
+  <b>
+    <c>cat</c>
+  </b>
+</a>
+EOM
+
+  X=$(./yq e --output-format=xml test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --output-format=xml test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testOutputXmlShort() {
+  cat >test.yml <<EOL
+a: {b: {c: ["cat"]}}
+EOL
+
+  read -r -d '' expected << EOM
+<a>
+  <b>
+    <c>cat</c>
+  </b>
+</a>
+EOM
+
+  X=$(./yq e --output-format=x test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --output-format=x test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testOutputXmComplex() {
+  cat >test.yml <<EOL
+a: {b: {c: ["cat", "dog"], +@f: meow}}
+EOL
+
+  read -r -d '' expected << EOM
+<a>
+  <b f="meow">
+    <c>cat</c>
+    <c>dog</c>
+  </b>
+</a>
+EOM
+
+  X=$(./yq e --output-format=x test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --output-format=x test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testLuaOutputPretty() {
+  cat >test.yml <<EOL
+animals:
+  cat: meow
+EOL
+
+  read -r -d '' expected << EOM
+return {
+	["animals"] = {
+		["cat"] = "meow";
+	};
+};
+EOM
+
+  X=$(./yq e --output-format=lua test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq e --output-format=lua --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+
+}
+
+testLuaOutputSubset() {
+  cat >test.yml <<EOL
+animals:
+  cat: meow
+EOL
+
+  read -r -d '' expected << EOM
+return {
+	["cat"] = "meow";
+};
+EOM
+
+  X=$(./yq e --output-format=lua '.animals' test.yml)
+  assertEquals "$expected" "$X"
+
+}
+
+source ./scripts/shunit2

acceptance_tests/pipe.sh

@@ -0,0 +1,70 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yml || true
+  cat >test.yml <<EOL
+a: frog
+EOL
+}
+
+testPipeViaCatWithParam() {
+  X=$(cat test.yml | ./yq '.a')
+  assertEquals "frog" "$X"
+}
+
+testPipeViaCatWithParamEval() {
+  X=$(cat test.yml | ./yq e '.a')
+  assertEquals "frog" "$X"
+}
+
+testPipeViaCatWithParamEvalAll() {
+  X=$(cat test.yml | ./yq ea '.a')
+  assertEquals "frog" "$X"
+}
+
+testPipeViaCatNoParam() {
+  X=$(cat test.yml | ./yq)
+  assertEquals "a: frog" "$X"
+}
+
+testPipeViaCatNoParamEval() {
+  X=$(cat test.yml | ./yq e)
+  assertEquals "a: frog" "$X"
+}
+
+testPipeViaCatNoParamEvalAll() {
+  X=$(cat test.yml | ./yq ea)
+  assertEquals "a: frog" "$X"
+}
+
+testPipeViaFileishWithParam() {
+  X=$(./yq '.a' < test.yml)
+  assertEquals "frog" "$X"
+}
+
+testPipeViaFileishWithParamEval() {
+  X=$(./yq e '.a' < test.yml)
+  assertEquals "frog" "$X"
+}
+
+testPipeViaFileishWithParamEvalAll() {
+  X=$(./yq ea '.a' < test.yml)
+  assertEquals "frog" "$X"
+}
+
+testPipeViaFileishNoParam() {
+  X=$(./yq < test.yml)
+  assertEquals "a: frog" "$X"
+}
+
+testPipeViaFileishNoParamEval() {
+  X=$(./yq e < test.yml)
+  assertEquals "a: frog" "$X"
+}
+
+testPipeViaFileishNoParamEvalAll() {
+  X=$(./yq ea < test.yml)
+  assertEquals "a: frog" "$X"
+}
+
+source ./scripts/shunit2

acceptance_tests/pretty-print.sh

@@ -0,0 +1,176 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yml || true
+}
+
+testPrettyPrintWithBooleans() {
+  cat >test.yml <<EOL
+leaveUnquoted: [yes, no, on, off, y, n, true, false]
+leaveQuoted: ["yes", "no", "on", "off", "y", "n", "true", "false"]
+
+EOL
+
+  read -r -d '' expected << EOM
+leaveUnquoted:
+  - yes
+  - no
+  - on
+  - off
+  - y
+  - n
+  - true
+  - false
+leaveQuoted:
+  - "yes"
+  - "no"
+  - "on"
+  - "off"
+  - "y"
+  - "n"
+  - "true"
+  - "false"
+EOM
+
+  X=$(./yq e --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testPrettyPrintWithBooleansCapitals() {
+  cat >test.yml <<EOL
+leaveUnquoted: [YES, NO, ON, OFF, Y, N, TRUE, FALSE]
+leaveQuoted: ["YES", "NO", "ON", "OFF", "Y", "N", "TRUE", "FALSE"]
+EOL
+
+  read -r -d '' expected << EOM
+leaveUnquoted:
+  - YES
+  - NO
+  - ON
+  - OFF
+  - Y
+  - N
+  - TRUE
+  - FALSE
+leaveQuoted:
+  - "YES"
+  - "NO"
+  - "ON"
+  - "OFF"
+  - "Y"
+  - "N"
+  - "TRUE"
+  - "FALSE"
+EOM
+
+  X=$(./yq e --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testPrettyPrintOtherStringValues() {
+  cat >test.yml <<EOL
+leaveUnquoted: [yesSir, hellno, bonapite]
+makeUnquoted: ["yesSir", "hellno", "bonapite"]
+EOL
+
+  read -r -d '' expected << EOM
+leaveUnquoted:
+  - yesSir
+  - hellno
+  - bonapite
+makeUnquoted:
+  - yesSir
+  - hellno
+  - bonapite
+EOM
+
+  X=$(./yq e --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testPrettyPrintKeys() {
+  cat >test.yml <<EOL
+"removeQuotes": "please"
+EOL
+
+  read -r -d '' expected << EOM
+removeQuotes: please
+EOM
+
+  X=$(./yq e --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testPrettyPrintOtherStringValues() {
+  cat >test.yml <<EOL
+leaveUnquoted: [yesSir, hellno, bonapite]
+makeUnquoted: ["yesSir", "hellno", "bonapite"]
+EOL
+
+  read -r -d '' expected << EOM
+leaveUnquoted:
+  - yesSir
+  - hellno
+  - bonapite
+makeUnquoted:
+  - yesSir
+  - hellno
+  - bonapite
+EOM
+
+  X=$(./yq e --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testPrettyPrintStringBlocks() {
+  cat >test.yml <<EOL
+"removeQuotes": | 
+  "please"
+EOL
+
+  read -r -d '' expected << EOM
+removeQuotes: |
+  "please"
+EOM
+
+  X=$(./yq e --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+}
+
+testPrettyPrintWithExpression() {
+  cat >test.yml <<EOL
+a: {b: {c: ["cat"]}}
+EOL
+
+  read -r -d '' expected << EOM
+b:
+  c:
+    - cat
+EOM
+
+  X=$(./yq e '.a' --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+
+  X=$(./yq ea '.a' --prettyPrint test.yml)
+  assertEquals "$expected" "$X"
+}
+
+source ./scripts/shunit2

acceptance_tests/shebang.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yq || true
+  cat >test.yq <<EOL
+#!./yq
+.a.b
+EOL
+chmod +x test.yq
+
+rm test*.yml || true
+  cat >test.yml <<EOL
+a: {b: apple}
+EOL
+}
+
+testCanExecYqFile() {
+  read -r -d '' expected << EOM
+apple
+EOM
+   X=$(./test.yq test.yml)
+  assertEquals "$expected" "$X"
+}
+
+source ./scripts/shunit2
+

acceptance_tests/split-printer.sh

@@ -0,0 +1,227 @@
+#!/bin/bash
+
+setUp() {
+  rm test*.yml || true
+  rm -rf test_dir* || true
+}
+
+testBasicSplitWithName() {
+  cat >test.yml <<EOL
+a: test_doc1
+--- 
+a: test_doc2
+EOL
+
+  ./yq e test.yml -s ".a"
+
+  doc1=$(cat test_doc1.yml)
+  
+  assertEquals "a: test_doc1" "$doc1"
+
+  doc2=$(cat test_doc2.yml)
+  read -r -d '' expectedDoc2 << EOM
+---
+a: test_doc2
+EOM
+  assertEquals "$expectedDoc2" "$doc2"
+}
+
+testBasicSplitWithNameCustomExtension() {
+  rm test*.yaml || true
+  cat >test.yml <<EOL
+a: test_doc1
+--- 
+a: test_doc2
+EOL
+
+  ./yq e test.yml -s '.a + ".yaml"'
+
+  doc1=$(cat test_doc1.yaml)
+  
+  assertEquals "a: test_doc1" "$doc1"
+
+  doc2=$(cat test_doc2.yaml)
+  read -r -d '' expectedDoc2 << EOM
+---
+a: test_doc2
+EOM
+  assertEquals "$expectedDoc2" "$doc2"
+}
+
+
+
+
+testSplitFromFile() {
+  cat >test.yml <<EOL
+a: test_doc1
+--- 
+a: test_doc2
+EOL
+
+cat >test_splitExp.yml <<EOL
+.a
+EOL
+
+  ./yq test.yml --split-exp-file test_splitExp.yml
+
+  doc1=$(cat test_doc1.yml)
+  
+  assertEquals "a: test_doc1" "$doc1"
+
+  doc2=$(cat test_doc2.yml)
+  read -r -d '' expectedDoc2 << EOM
+---
+a: test_doc2
+EOM
+  assertEquals "$expectedDoc2" "$doc2"
+}
+
+testBasicSplitWithNameEvalAll() {
+  cat >test.yml <<EOL
+a: test_doc1
+--- 
+a: test_doc2
+EOL
+
+  ./yq ea test.yml -s ".a"
+
+  doc1=$(cat test_doc1.yml)
+  
+  assertEquals "a: test_doc1" "$doc1"
+
+  doc2=$(cat test_doc2.yml)
+  read -r -d '' expectedDoc2 << EOM
+---
+a: test_doc2
+EOM
+  assertEquals "$expectedDoc2" "$doc2"
+}
+
+testBasicSplitWithIndex() {
+  cat >test.yml <<EOL
+a: test_doc1
+--- 
+a: test_doc2
+EOL
+
+  ./yq e test.yml -s '"test_" + $index'
+
+  doc1=$(cat test_0.yml)
+  
+  assertEquals "a: test_doc1" "$doc1"
+
+  doc2=$(cat test_1.yml)
+  read -r -d '' expectedDoc2 << EOM
+---
+a: test_doc2
+EOM
+  assertEquals "$expectedDoc2" "$doc2"
+}
+
+testBasicSplitWithIndexEvalAll() {
+  cat >test.yml <<EOL
+a: test_doc1
+--- 
+a: test_doc2
+EOL
+
+  ./yq ea test.yml -s '"test_" + $index'
+
+  doc1=$(cat test_0.yml)
+  
+  assertEquals "a: test_doc1" "$doc1"
+
+  doc2=$(cat test_1.yml)
+  read -r -d '' expectedDoc2 << EOM
+---
+a: test_doc2
+EOM
+  assertEquals "$expectedDoc2" "$doc2"
+}
+
+
+testArraySplitWithNameNoSeparators() {
+  cat >test.yml <<EOL
+- name: test_fred
+  age: 35
+- name: test_catherine
+  age: 37
+EOL
+
+  ./yq e --no-doc -s ".name"  ".[]" test.yml 
+
+  doc1=$(cat test_fred.yml)
+  read -r -d '' expectedDoc1 << EOM
+name: test_fred
+age: 35
+EOM
+
+  assertEquals "$expectedDoc1" "$doc1"
+
+  doc2=$(cat test_catherine.yml)
+  read -r -d '' expectedDoc2 << EOM
+name: test_catherine
+age: 37
+EOM
+  assertEquals "$expectedDoc2" "$doc2"
+}
+
+testArraySplitWithNameNoSeparatorsEvalAll() {
+  cat >test.yml <<EOL
+- name: test_fred
+  age: 35
+- name: test_catherine
+  age: 37
+EOL
+
+cat >test2.yml <<EOL
+- name: test_mike
+  age: 564
+EOL
+
+  ./yq ea --no-doc -s ".name"  ".[]" test.yml test2.yml
+
+  doc1=$(cat test_fred.yml)
+  read -r -d '' expectedDoc1 << EOM
+name: test_fred
+age: 35
+EOM
+
+  assertEquals "$expectedDoc1" "$doc1"
+
+  doc2=$(cat test_catherine.yml)
+  read -r -d '' expectedDoc2 << EOM
+name: test_catherine
+age: 37
+EOM
+  assertEquals "$expectedDoc2" "$doc2"
+
+
+  doc3=$(cat test_mike.yml)
+  read -r -d '' expectedDoc3 << EOM
+name: test_mike
+age: 564
+EOM
+  assertEquals "$expectedDoc3" "$doc3"
+}
+
+testSplitWithDirectories() {
+  cat >test.yml <<EOL
+f: test_dir1/test_file1
+---
+f: test_dir2/dir22/test_file2
+---
+f: test_file3
+EOL
+
+  ./yq e --no-doc -s ".f" test.yml
+
+  doc1=$(cat test_dir1/test_file1.yml)
+  assertEquals "f: test_dir1/test_file1" "$doc1"
+  doc2=$(cat test_dir2/dir22/test_file2.yml)
+  assertEquals "f: test_dir2/dir22/test_file2" "$doc2"
+  doc3=$(cat test_file3.yml)
+  assertEquals "f: test_file3" "$doc3"
+}
+
+source ./scripts/shunit2

action.yml

@@ -0,0 +1,17 @@
+name: 'yq - portable yaml processor'
+description: 'create, read, update, delete, merge, validate and do more with yaml'
+branding:
+  icon: command
+  color: gray-dark
+inputs:
+  cmd:
+    description: 'The Command which should be run'
+    required: true
+outputs:
+  result:
+    description: "The complete result from the yq command being run"
+runs:
+  using: 'docker'
+  image: 'docker://mikefarah/yq:4-githubaction'
+  args:
+    - ${{ inputs.cmd }}

cmd/completion.go

@@ -0,0 +1,62 @@
+package cmd
+
+import (
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var completionCmd = &cobra.Command{
+	Use:     "completion [bash|zsh|fish|powershell]",
+	Aliases: []string{"shell-completion"},
+	Short:   "Generate the autocompletion script for the specified shell",
+	Long: `To load completions:
+
+Bash:
+
+$ source <(yq completion bash)
+
+# To load completions for each session, execute once:
+Linux:
+  $ yq completion bash > /etc/bash_completion.d/yq
+MacOS:
+  $ yq completion bash > /usr/local/etc/bash_completion.d/yq
+
+Zsh:
+
+# If shell completion is not already enabled in your environment you will need
+# to enable it.  You can execute the following once:
+
+$ echo "autoload -U compinit; compinit" >> ~/.zshrc
+
+# To load completions for each session, execute once:
+$ yq completion zsh > "${fpath[1]}/_yq"
+
+# You will need to start a new shell for this setup to take effect.
+
+Fish:
+
+$ yq completion fish | source
+
+# To load completions for each session, execute once:
+$ yq completion fish > ~/.config/fish/completions/yq.fish
+`,
+	DisableFlagsInUseLine: true,
+	ValidArgs:             []string{"bash", "zsh", "fish", "powershell"},
+	Args:                  cobra.MatchAll(cobra.ExactArgs(1), cobra.OnlyValidArgs),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		var err error = nil
+		switch args[0] {
+		case "bash":
+			err = cmd.Root().GenBashCompletionV2(os.Stdout, true)
+		case "zsh":
+			err = cmd.Root().GenZshCompletion(os.Stdout)
+		case "fish":
+			err = cmd.Root().GenFishCompletion(os.Stdout, true)
+		case "powershell":
+			err = cmd.Root().GenPowerShellCompletion(os.Stdout)
+		}
+		return err
+
+	},
+}

cmd/constant.go

@@ -0,0 +1,39 @@
+package cmd
+
+var unwrapScalarFlag = newUnwrapFlag()
+
+var printNodeInfo = false
+
+var unwrapScalar = false
+
+var writeInplace = false
+var outputToJSON = false
+
+var outputFormat = ""
+
+var inputFormat = ""
+
+var exitStatus = false
+var indent = 2
+var noDocSeparators = false
+var nullInput = false
+var nulSepOutput = false
+var verbose = false
+var version = false
+var prettyPrint = false
+
+var forceColor = false
+var forceNoColor = false
+var colorsEnabled = false
+
+// can be either "" (off), "extract" or "process"
+var frontMatter = ""
+
+var splitFileExp = ""
+var splitFileExpFile = ""
+
+var completedSuccessfully = false
+
+var forceExpression = ""
+
+var expressionFile = ""

cmd/evaluate_all_command.go

@@ -0,0 +1,140 @@
+package cmd
+
+import (
+	"errors"
+
+	"github.com/mikefarah/yq/v4/pkg/yqlib"
+	"github.com/spf13/cobra"
+)
+
+func createEvaluateAllCommand() *cobra.Command {
+	var cmdEvalAll = &cobra.Command{
+		Use:     "eval-all [expression] [yaml_file1]...",
+		Aliases: []string{"ea"},
+		Short:   "Loads _all_ yaml documents of _all_ yaml files and runs expression once",
+		ValidArgsFunction: func(_ *cobra.Command, args []string, _ string) ([]string, cobra.ShellCompDirective) {
+			if len(args) == 0 {
+				return nil, cobra.ShellCompDirectiveNoFileComp
+			}
+			return nil, cobra.ShellCompDirectiveDefault
+		},
+		Example: `
+# Merge f2.yml into f1.yml (in place)
+yq eval-all --inplace 'select(fileIndex == 0) * select(fileIndex == 1)' f1.yml f2.yml
+## the same command and expression using shortened names:
+yq ea -i 'select(fi == 0) * select(fi == 1)' f1.yml f2.yml
+
+
+# Merge all given files
+yq ea '. as $item ireduce ({}; . * $item )' file1.yml file2.yml ...
+
+# Pipe from STDIN
+## use '-' as a filename to pipe from STDIN
+cat file2.yml | yq ea '.a.b' file1.yml - file3.yml
+`,
+		Long: `yq is a portable command-line data file processor (https://github.com/mikefarah/yq/) 
+See https://mikefarah.gitbook.io/yq/ for detailed documentation and examples.
+
+## Evaluate All ##
+This command loads _all_ yaml documents of _all_ yaml files and runs expression once
+Useful when you need to run an expression across several yaml documents or files (like merge).
+Note that it consumes more memory than eval.
+`,
+		RunE: evaluateAll,
+	}
+	return cmdEvalAll
+}
+func evaluateAll(cmd *cobra.Command, args []string) (cmdError error) {
+	// 0 args, read std in
+	// 1 arg, null input, process expression
+	// 1 arg, read file in sequence
+	// 2+ args, [0] = expression, file the rest
+
+	var err error
+
+	expression, args, err := initCommand(cmd, args)
+	if err != nil {
+		return err
+	}
+
+	out := cmd.OutOrStdout()
+
+	if writeInplace {
+		// only use colors if its forced
+		colorsEnabled = forceColor
+		writeInPlaceHandler := yqlib.NewWriteInPlaceHandler(args[0])
+		out, err = writeInPlaceHandler.CreateTempFile()
+		if err != nil {
+			return err
+		}
+		// need to indirectly call the function so  that completedSuccessfully is
+		// passed when we finish execution as opposed to now
+		defer func() {
+			if cmdError == nil {
+				cmdError = writeInPlaceHandler.FinishWriteInPlace(completedSuccessfully)
+			}
+		}()
+	}
+
+	format, err := yqlib.FormatFromString(outputFormat)
+	if err != nil {
+		return err
+	}
+
+	decoder, err := configureDecoder(true)
+	if err != nil {
+		return err
+	}
+
+	printerWriter, err := configurePrinterWriter(format, out)
+	if err != nil {
+		return err
+	}
+	encoder, err := configureEncoder()
+	if err != nil {
+		return err
+	}
+
+	printer := yqlib.NewPrinter(encoder, printerWriter)
+	if nulSepOutput {
+		printer.SetNulSepOutput(true)
+	}
+
+	if frontMatter != "" {
+		frontMatterHandler := yqlib.NewFrontMatterHandler(args[0])
+		err = frontMatterHandler.Split()
+		if err != nil {
+			return err
+		}
+		args[0] = frontMatterHandler.GetYamlFrontMatterFilename()
+
+		if frontMatter == "process" {
+			reader := frontMatterHandler.GetContentReader()
+			printer.SetAppendix(reader)
+			defer yqlib.SafelyCloseReader(reader)
+		}
+		defer frontMatterHandler.CleanUp()
+	}
+
+	allAtOnceEvaluator := yqlib.NewAllAtOnceEvaluator()
+
+	switch len(args) {
+	case 0:
+		if nullInput {
+			err = yqlib.NewStreamEvaluator().EvaluateNew(processExpression(expression), printer)
+		} else {
+			cmd.Println(cmd.UsageString())
+			return nil
+		}
+	default:
+		err = allAtOnceEvaluator.EvaluateFiles(processExpression(expression), args, printer, decoder)
+	}
+
+	completedSuccessfully = err == nil
+
+	if err == nil && exitStatus && !printer.PrintedAnything() {
+		return errors.New("no matches found")
+	}
+
+	return err
+}

cmd/evaluate_sequence_command.go

@@ -0,0 +1,158 @@
+package cmd
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/mikefarah/yq/v4/pkg/yqlib"
+	"github.com/spf13/cobra"
+)
+
+func createEvaluateSequenceCommand() *cobra.Command {
+	var cmdEvalSequence = &cobra.Command{
+		Use:     "eval [expression] [yaml_file1]...",
+		Aliases: []string{"e"},
+		Short:   "(default) Apply the expression to each document in each yaml file in sequence",
+		ValidArgsFunction: func(_ *cobra.Command, args []string, _ string) ([]string, cobra.ShellCompDirective) {
+			if len(args) == 0 {
+				return nil, cobra.ShellCompDirectiveNoFileComp
+			}
+			return nil, cobra.ShellCompDirectiveDefault
+		},
+		Example: `
+# Reads field under the given path for each file
+yq e '.a.b' f1.yml f2.yml 
+
+# Prints out the file
+yq e sample.yaml 
+
+# Pipe from STDIN
+## use '-' as a filename to pipe from STDIN
+cat file2.yml | yq e '.a.b' file1.yml - file3.yml
+
+# Creates a new yaml document
+## Note that editing an empty file does not work.
+yq e -n '.a.b.c = "cat"' 
+
+# Update a file in place
+yq e '.a.b = "cool"' -i file.yaml 
+`,
+		Long: `yq is a portable command-line data file processor (https://github.com/mikefarah/yq/) 
+See https://mikefarah.gitbook.io/yq/ for detailed documentation and examples.
+
+## Evaluate Sequence ##
+This command iterates over each yaml document from each given file, applies the 
+expression and prints the result in sequence.`,
+		RunE: evaluateSequence,
+	}
+	return cmdEvalSequence
+}
+
+func processExpression(expression string) string {
+
+	if prettyPrint && expression == "" {
+		return yqlib.PrettyPrintExp
+	} else if prettyPrint {
+		return fmt.Sprintf("%v | %v", expression, yqlib.PrettyPrintExp)
+	}
+	return expression
+}
+
+func evaluateSequence(cmd *cobra.Command, args []string) (cmdError error) {
+	// 0 args, read std in
+	// 1 arg, null input, process expression
+	// 1 arg, read file in sequence
+	// 2+ args, [0] = expression, file the rest
+
+	out := cmd.OutOrStdout()
+
+	var err error
+
+	expression, args, err := initCommand(cmd, args)
+	if err != nil {
+		return err
+	}
+
+	if writeInplace {
+		// only use colors if its forced
+		colorsEnabled = forceColor
+		writeInPlaceHandler := yqlib.NewWriteInPlaceHandler(args[0])
+		out, err = writeInPlaceHandler.CreateTempFile()
+		if err != nil {
+			return err
+		}
+		// need to indirectly call the function so  that completedSuccessfully is
+		// passed when we finish execution as opposed to now
+		defer func() {
+			if cmdError == nil {
+				cmdError = writeInPlaceHandler.FinishWriteInPlace(completedSuccessfully)
+			}
+		}()
+	}
+
+	format, err := yqlib.FormatFromString(outputFormat)
+	if err != nil {
+		return err
+	}
+
+	printerWriter, err := configurePrinterWriter(format, out)
+	if err != nil {
+		return err
+	}
+	encoder, err := configureEncoder()
+	if err != nil {
+		return err
+	}
+
+	printer := yqlib.NewPrinter(encoder, printerWriter)
+
+	if printNodeInfo {
+		printer = yqlib.NewNodeInfoPrinter(printerWriter)
+	}
+
+	if nulSepOutput {
+		printer.SetNulSepOutput(true)
+	}
+
+	decoder, err := configureDecoder(false)
+	if err != nil {
+		return err
+	}
+	streamEvaluator := yqlib.NewStreamEvaluator()
+
+	if frontMatter != "" {
+		yqlib.GetLogger().Debug("using front matter handler")
+		frontMatterHandler := yqlib.NewFrontMatterHandler(args[0])
+		err = frontMatterHandler.Split()
+		if err != nil {
+			return err
+		}
+		args[0] = frontMatterHandler.GetYamlFrontMatterFilename()
+
+		if frontMatter == "process" {
+			reader := frontMatterHandler.GetContentReader()
+			printer.SetAppendix(reader)
+			defer yqlib.SafelyCloseReader(reader)
+		}
+		defer frontMatterHandler.CleanUp()
+	}
+
+	switch len(args) {
+	case 0:
+		if nullInput {
+			err = streamEvaluator.EvaluateNew(processExpression(expression), printer)
+		} else {
+			cmd.Println(cmd.UsageString())
+			return nil
+		}
+	default:
+		err = streamEvaluator.EvaluateFiles(processExpression(expression), args, printer, decoder)
+	}
+	completedSuccessfully = err == nil
+
+	if err == nil && exitStatus && !printer.PrintedAnything() {
+		return errors.New("no matches found")
+	}
+
+	return err
+}

cmd/root.go

@@ -0,0 +1,222 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/mikefarah/yq/v4/pkg/yqlib"
+	"github.com/spf13/cobra"
+	logging "gopkg.in/op/go-logging.v1"
+)
+
+type runeValue rune
+
+func newRuneVar(p *rune) *runeValue {
+	return (*runeValue)(p)
+}
+
+func (r *runeValue) String() string {
+	return string(*r)
+}
+
+func (r *runeValue) Set(rawVal string) error {
+	val := strings.ReplaceAll(rawVal, "\\n", "\n")
+	val = strings.ReplaceAll(val, "\\t", "\t")
+	val = strings.ReplaceAll(val, "\\r", "\r")
+	val = strings.ReplaceAll(val, "\\f", "\f")
+	val = strings.ReplaceAll(val, "\\v", "\v")
+	if len(val) != 1 {
+		return fmt.Errorf("[%v] is not a valid character. Must be length 1 was %v", val, len(val))
+	}
+	*r = runeValue(rune(val[0]))
+	return nil
+}
+
+func (r *runeValue) Type() string {
+	return "char"
+}
+
+func New() *cobra.Command {
+	var rootCmd = &cobra.Command{
+		Use:   "yq",
+		Short: "yq is a lightweight and portable command-line data file processor.",
+		Long: `yq is a portable command-line data file processor (https://github.com/mikefarah/yq/) 
+See https://mikefarah.gitbook.io/yq/ for detailed documentation and examples.`,
+		Example: `
+# yq tries to auto-detect the file format based off the extension, and defaults to YAML if it's unknown (or piping through STDIN)
+# Use the '-p/--input-format' flag to specify a format type.
+cat file.xml | yq -p xml
+
+# read the "stuff" node from "myfile.yml"
+yq '.stuff' < myfile.yml
+
+# update myfile.yml in place
+yq -i '.stuff = "foo"' myfile.yml
+
+# print contents of sample.json as idiomatic YAML
+yq -P -oy sample.json
+`,
+
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if version {
+				cmd.Print(GetVersionDisplay())
+				return nil
+			}
+			return evaluateSequence(cmd, args)
+
+		},
+		PersistentPreRunE: func(cmd *cobra.Command, _ []string) error {
+			cmd.SetOut(cmd.OutOrStdout())
+			level := logging.WARNING
+			stringFormat := `[%{level}] %{color}%{time:15:04:05}%{color:reset} %{message}`
+
+			// when NO_COLOR environment variable presents and not an empty string the coloured output should be disabled;
+			// refer to no-color.org
+			forceNoColor = forceNoColor || os.Getenv("NO_COLOR") != ""
+
+			if verbose && forceNoColor {
+				level = logging.DEBUG
+				stringFormat = `[%{level:5.5s}] %{time:15:04:05} %{shortfile:-33s} %{shortfunc:-25s} %{message}`
+			} else if verbose {
+				level = logging.DEBUG
+				stringFormat = `[%{level:5.5s}] %{color}%{time:15:04:05}%{color:bold} %{shortfile:-33s} %{shortfunc:-25s}%{color:reset} %{message}`
+			} else if forceNoColor {
+				stringFormat = `[%{level}] %{time:15:04:05} %{message}`
+			}
+
+			var format = logging.MustStringFormatter(stringFormat)
+			var backend = logging.AddModuleLevel(
+				logging.NewBackendFormatter(logging.NewLogBackend(os.Stderr, "", 0), format))
+
+			backend.SetLevel(level, "")
+
+			logging.SetBackend(backend)
+			yqlib.InitExpressionParser()
+
+			return nil
+		},
+	}
+
+	rootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "verbose mode")
+	rootCmd.PersistentFlags().BoolVarP(&printNodeInfo, "debug-node-info", "", false, "debug node info")
+
+	rootCmd.PersistentFlags().BoolVarP(&outputToJSON, "tojson", "j", false, "(deprecated) output as json. Set indent to 0 to print json in one line.")
+	err := rootCmd.PersistentFlags().MarkDeprecated("tojson", "please use -o=json instead")
+	if err != nil {
+		panic(err)
+	}
+
+	rootCmd.PersistentFlags().StringVarP(&outputFormat, "output-format", "o", "auto", fmt.Sprintf("[auto|a|%v] output format type.", yqlib.GetAvailableOutputFormatString()))
+	var outputCompletions = []string{"auto"}
+	for _, formats := range yqlib.GetAvailableOutputFormats() {
+		outputCompletions = append(outputCompletions, formats.FormalName)
+	}
+
+	if err = rootCmd.RegisterFlagCompletionFunc("output-format", cobra.FixedCompletions(outputCompletions, cobra.ShellCompDirectiveNoFileComp)); err != nil {
+		panic(err)
+	}
+	rootCmd.PersistentFlags().StringVarP(&inputFormat, "input-format", "p", "auto", fmt.Sprintf("[auto|a|%v] parse format for input.", yqlib.GetAvailableInputFormatString()))
+
+	var inputCompletions = []string{"auto"}
+	for _, formats := range yqlib.GetAvailableInputFormats() {
+		inputCompletions = append(inputCompletions, formats.FormalName)
+	}
+
+	if err = rootCmd.RegisterFlagCompletionFunc("input-format", cobra.FixedCompletions(inputCompletions, cobra.ShellCompDirectiveNoFileComp)); err != nil {
+		panic(err)
+	}
+
+	rootCmd.PersistentFlags().StringVar(&yqlib.ConfiguredXMLPreferences.AttributePrefix, "xml-attribute-prefix", yqlib.ConfiguredXMLPreferences.AttributePrefix, "prefix for xml attributes")
+	if err = rootCmd.RegisterFlagCompletionFunc("xml-attribute-prefix", cobra.NoFileCompletions); err != nil {
+		panic(err)
+	}
+	rootCmd.PersistentFlags().StringVar(&yqlib.ConfiguredXMLPreferences.ContentName, "xml-content-name", yqlib.ConfiguredXMLPreferences.ContentName, "name for xml content (if no attribute name is present).")
+	if err = rootCmd.RegisterFlagCompletionFunc("xml-content-name", cobra.NoFileCompletions); err != nil {
+		panic(err)
+	}
+	rootCmd.PersistentFlags().BoolVar(&yqlib.ConfiguredXMLPreferences.StrictMode, "xml-strict-mode", yqlib.ConfiguredXMLPreferences.StrictMode, "enables strict parsing of XML. See https://pkg.go.dev/encoding/xml for more details.")
+	rootCmd.PersistentFlags().BoolVar(&yqlib.ConfiguredXMLPreferences.KeepNamespace, "xml-keep-namespace", yqlib.ConfiguredXMLPreferences.KeepNamespace, "enables keeping namespace after parsing attributes")
+	rootCmd.PersistentFlags().BoolVar(&yqlib.ConfiguredXMLPreferences.UseRawToken, "xml-raw-token", yqlib.ConfiguredXMLPreferences.UseRawToken, "enables using RawToken method instead Token. Commonly disables namespace translations. See https://pkg.go.dev/encoding/xml#Decoder.RawToken for details.")
+	rootCmd.PersistentFlags().StringVar(&yqlib.ConfiguredXMLPreferences.ProcInstPrefix, "xml-proc-inst-prefix", yqlib.ConfiguredXMLPreferences.ProcInstPrefix, "prefix for xml processing instructions (e.g. <?xml version=\"1\"?>)")
+	if err = rootCmd.RegisterFlagCompletionFunc("xml-proc-inst-prefix", cobra.NoFileCompletions); err != nil {
+		panic(err)
+	}
+	rootCmd.PersistentFlags().StringVar(&yqlib.ConfiguredXMLPreferences.DirectiveName, "xml-directive-name", yqlib.ConfiguredXMLPreferences.DirectiveName, "name for xml directives (e.g. <!DOCTYPE thing cat>)")
+	if err = rootCmd.RegisterFlagCompletionFunc("xml-directive-name", cobra.NoFileCompletions); err != nil {
+		panic(err)
+	}
+	rootCmd.PersistentFlags().BoolVar(&yqlib.ConfiguredXMLPreferences.SkipProcInst, "xml-skip-proc-inst", yqlib.ConfiguredXMLPreferences.SkipProcInst, "skip over process instructions (e.g. <?xml version=\"1\"?>)")
+	rootCmd.PersistentFlags().BoolVar(&yqlib.ConfiguredXMLPreferences.SkipDirectives, "xml-skip-directives", yqlib.ConfiguredXMLPreferences.SkipDirectives, "skip over directives (e.g. <!DOCTYPE thing cat>)")
+
+	rootCmd.PersistentFlags().BoolVar(&yqlib.ConfiguredCsvPreferences.AutoParse, "csv-auto-parse", yqlib.ConfiguredCsvPreferences.AutoParse, "parse CSV YAML/JSON values")
+	rootCmd.PersistentFlags().Var(newRuneVar(&yqlib.ConfiguredCsvPreferences.Separator), "csv-separator", "CSV Separator character")
+
+	rootCmd.PersistentFlags().BoolVar(&yqlib.ConfiguredTsvPreferences.AutoParse, "tsv-auto-parse", yqlib.ConfiguredTsvPreferences.AutoParse, "parse TSV YAML/JSON values")
+
+	rootCmd.PersistentFlags().StringVar(&yqlib.ConfiguredLuaPreferences.DocPrefix, "lua-prefix", yqlib.ConfiguredLuaPreferences.DocPrefix, "prefix")
+	if err = rootCmd.RegisterFlagCompletionFunc("lua-prefix", cobra.NoFileCompletions); err != nil {
+		panic(err)
+	}
+	rootCmd.PersistentFlags().StringVar(&yqlib.ConfiguredLuaPreferences.DocSuffix, "lua-suffix", yqlib.ConfiguredLuaPreferences.DocSuffix, "suffix")
+	if err = rootCmd.RegisterFlagCompletionFunc("lua-suffix", cobra.NoFileCompletions); err != nil {
+		panic(err)
+	}
+	rootCmd.PersistentFlags().BoolVar(&yqlib.ConfiguredLuaPreferences.UnquotedKeys, "lua-unquoted", yqlib.ConfiguredLuaPreferences.UnquotedKeys, "output unquoted string keys (e.g. {foo=\"bar\"})")
+	rootCmd.PersistentFlags().BoolVar(&yqlib.ConfiguredLuaPreferences.Globals, "lua-globals", yqlib.ConfiguredLuaPreferences.Globals, "output keys as top-level global variables")
+
+	rootCmd.PersistentFlags().StringVar(&yqlib.ConfiguredPropertiesPreferences.KeyValueSeparator, "properties-separator", yqlib.ConfiguredPropertiesPreferences.KeyValueSeparator, "separator to use between keys and values")
+	rootCmd.PersistentFlags().BoolVar(&yqlib.ConfiguredPropertiesPreferences.UseArrayBrackets, "properties-array-brackets", yqlib.ConfiguredPropertiesPreferences.UseArrayBrackets, "use [x] in array paths (e.g. for SpringBoot)")
+
+	rootCmd.PersistentFlags().BoolVar(&yqlib.StringInterpolationEnabled, "string-interpolation", yqlib.StringInterpolationEnabled, "Toggles strings interpolation of \\(exp)")
+
+	rootCmd.PersistentFlags().BoolVarP(&nullInput, "null-input", "n", false, "Don't read input, simply evaluate the expression given. Useful for creating docs from scratch.")
+	rootCmd.PersistentFlags().BoolVarP(&noDocSeparators, "no-doc", "N", false, "Don't print document separators (---)")
+
+	rootCmd.PersistentFlags().IntVarP(&indent, "indent", "I", 2, "sets indent level for output")
+	if err = rootCmd.RegisterFlagCompletionFunc("indent", cobra.NoFileCompletions); err != nil {
+		panic(err)
+	}
+	rootCmd.Flags().BoolVarP(&version, "version", "V", false, "Print version information and quit")
+	rootCmd.PersistentFlags().BoolVarP(&writeInplace, "inplace", "i", false, "update the file in place of first file given.")
+	rootCmd.PersistentFlags().VarP(unwrapScalarFlag, "unwrapScalar", "r", "unwrap scalar, print the value with no quotes, colors or comments. Defaults to true for yaml")
+	rootCmd.PersistentFlags().Lookup("unwrapScalar").NoOptDefVal = "true"
+	rootCmd.PersistentFlags().BoolVarP(&nulSepOutput, "nul-output", "0", false, "Use NUL char to separate values. If unwrap scalar is also set, fail if unwrapped scalar contains NUL char.")
+
+	rootCmd.PersistentFlags().BoolVarP(&prettyPrint, "prettyPrint", "P", false, "pretty print, shorthand for '... style = \"\"'")
+	rootCmd.PersistentFlags().BoolVarP(&exitStatus, "exit-status", "e", false, "set exit status if there are no matches or null or false is returned")
+
+	rootCmd.PersistentFlags().BoolVarP(&forceColor, "colors", "C", false, "force print with colors")
+	rootCmd.PersistentFlags().BoolVarP(&forceNoColor, "no-colors", "M", forceNoColor, "force print with no colors")
+	rootCmd.PersistentFlags().StringVarP(&frontMatter, "front-matter", "f", "", "(extract|process) first input as yaml front-matter. Extract will pull out the yaml content, process will run the expression against the yaml content, leaving the remaining data intact")
+	if err = rootCmd.RegisterFlagCompletionFunc("front-matter", cobra.FixedCompletions([]string{"extract", "process"}, cobra.ShellCompDirectiveNoFileComp)); err != nil {
+		panic(err)
+	}
+	rootCmd.PersistentFlags().StringVarP(&forceExpression, "expression", "", "", "forcibly set the expression argument. Useful when yq argument detection thinks your expression is a file.")
+	if err = rootCmd.RegisterFlagCompletionFunc("expression", cobra.NoFileCompletions); err != nil {
+		panic(err)
+	}
+	rootCmd.PersistentFlags().BoolVarP(&yqlib.ConfiguredYamlPreferences.LeadingContentPreProcessing, "header-preprocess", "", true, "Slurp any header comments and separators before processing expression.")
+	rootCmd.PersistentFlags().BoolVarP(&yqlib.ConfiguredYamlPreferences.FixMergeAnchorToSpec, "yaml-fix-merge-anchor-to-spec", "", false, "Fix merge anchor to match YAML spec. Will default to true in late 2025")
+
+	rootCmd.PersistentFlags().StringVarP(&splitFileExp, "split-exp", "s", "", "print each result (or doc) into a file named (exp). [exp] argument must return a string. You can use $index in the expression as the result counter. The necessary directories will be created.")
+	if err = rootCmd.RegisterFlagCompletionFunc("split-exp", cobra.NoFileCompletions); err != nil {
+		panic(err)
+	}
+	rootCmd.PersistentFlags().StringVarP(&splitFileExpFile, "split-exp-file", "", "", "Use a file to specify the split-exp expression.")
+	if err = rootCmd.MarkPersistentFlagFilename("split-exp-file"); err != nil {
+		panic(err)
+	}
+
+	rootCmd.PersistentFlags().StringVarP(&expressionFile, "from-file", "", "", "Load expression from specified file.")
+	if err = rootCmd.MarkPersistentFlagFilename("from-file"); err != nil {
+		panic(err)
+	}
+
+	rootCmd.AddCommand(
+		createEvaluateSequenceCommand(),
+		createEvaluateAllCommand(),
+		completionCmd,
+	)
+	return rootCmd
+}

cmd/unwrap_flag.go

@@ -0,0 +1,46 @@
+package cmd
+
+import (
+	"strconv"
+
+	"github.com/spf13/pflag"
+)
+
+type boolFlag interface {
+	pflag.Value
+	IsExplicitlySet() bool
+	IsSet() bool
+}
+
+type unwrapScalarFlagStrc struct {
+	explicitlySet bool
+	value         bool
+}
+
+func newUnwrapFlag() boolFlag {
+	return &unwrapScalarFlagStrc{value: true}
+}
+
+func (f *unwrapScalarFlagStrc) IsExplicitlySet() bool {
+	return f.explicitlySet
+}
+
+func (f *unwrapScalarFlagStrc) IsSet() bool {
+	return f.value
+}
+
+func (f *unwrapScalarFlagStrc) String() string {
+	return strconv.FormatBool(f.value)
+}
+
+func (f *unwrapScalarFlagStrc) Set(value string) error {
+
+	v, err := strconv.ParseBool(value)
+	f.value = v
+	f.explicitlySet = true
+	return err
+}
+
+func (*unwrapScalarFlagStrc) Type() string {
+	return "bool"
+}

cmd/utils.go

@@ -0,0 +1,294 @@
+package cmd
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"strings"
+
+	"github.com/mikefarah/yq/v4/pkg/yqlib"
+	"github.com/spf13/cobra"
+	"gopkg.in/op/go-logging.v1"
+)
+
+func isAutomaticOutputFormat() bool {
+	return outputFormat == "" || outputFormat == "auto" || outputFormat == "a"
+}
+
+func initCommand(cmd *cobra.Command, args []string) (string, []string, error) {
+	cmd.SilenceUsage = true
+
+	setupColors()
+
+	expression, args, err := processArgs(args)
+	if err != nil {
+		return "", nil, err
+	}
+
+	if err := loadSplitFileExpression(); err != nil {
+		return "", nil, err
+	}
+
+	handleBackwardsCompatibility()
+
+	if err := validateCommandFlags(args); err != nil {
+		return "", nil, err
+	}
+
+	if err := configureFormats(args); err != nil {
+		return "", nil, err
+	}
+
+	configureUnwrapScalar()
+
+	return expression, args, nil
+}
+
+func setupColors() {
+	fileInfo, _ := os.Stdout.Stat()
+
+	if forceColor || (!forceNoColor && (fileInfo.Mode()&os.ModeCharDevice) != 0) {
+		colorsEnabled = true
+	}
+}
+
+func loadSplitFileExpression() error {
+	if splitFileExpFile != "" {
+		splitExpressionBytes, err := os.ReadFile(splitFileExpFile)
+		if err != nil {
+			return err
+		}
+		splitFileExp = string(splitExpressionBytes)
+	}
+	return nil
+}
+
+func handleBackwardsCompatibility() {
+	// backwards compatibility
+	if outputToJSON {
+		outputFormat = "json"
+	}
+}
+
+func validateCommandFlags(args []string) error {
+	if writeInplace && (len(args) == 0 || args[0] == "-") {
+		return fmt.Errorf("write in place flag only applicable when giving an expression and at least one file")
+	}
+
+	if frontMatter != "" && len(args) == 0 {
+		return fmt.Errorf("front matter flag only applicable when giving an expression and at least one file")
+	}
+
+	if writeInplace && splitFileExp != "" {
+		return fmt.Errorf("write in place cannot be used with split file")
+	}
+
+	if nullInput && len(args) > 0 {
+		return fmt.Errorf("cannot pass files in when using null-input flag")
+	}
+
+	return nil
+}
+
+func configureFormats(args []string) error {
+	inputFilename := ""
+	if len(args) > 0 {
+		inputFilename = args[0]
+	}
+
+	if err := configureInputFormat(inputFilename); err != nil {
+		return err
+	}
+
+	if err := configureOutputFormat(); err != nil {
+		return err
+	}
+
+	yqlib.GetLogger().Debug("Using input format %v", inputFormat)
+	yqlib.GetLogger().Debug("Using output format %v", outputFormat)
+
+	return nil
+}
+
+func configureInputFormat(inputFilename string) error {
+	if inputFormat == "" || inputFormat == "auto" || inputFormat == "a" {
+		inputFormat = yqlib.FormatStringFromFilename(inputFilename)
+
+		_, err := yqlib.FormatFromString(inputFormat)
+		if err != nil {
+			// unknown file type, default to yaml
+			yqlib.GetLogger().Debug("Unknown file format extension '%v', defaulting to yaml", inputFormat)
+			inputFormat = "yaml"
+			if isAutomaticOutputFormat() {
+				outputFormat = "yaml"
+			}
+		} else if isAutomaticOutputFormat() {
+			outputFormat = inputFormat
+		}
+	} else if isAutomaticOutputFormat() {
+		// backwards compatibility -
+		// before this was introduced, `yq -pcsv things.csv`
+		// would produce *yaml* output.
+		//
+		outputFormat = yqlib.FormatStringFromFilename(inputFilename)
+		if inputFilename != "-" {
+			yqlib.GetLogger().Warning("yq default output is now 'auto' (based on the filename extension). Normally yq would output '%v', but for backwards compatibility 'yaml' has been set. Please use -oy to specify yaml, or drop the -p flag.", outputFormat)
+		}
+		outputFormat = "yaml"
+	}
+	return nil
+}
+
+func configureOutputFormat() error {
+	outputFormatType, err := yqlib.FormatFromString(outputFormat)
+	if err != nil {
+		return err
+	}
+
+	if outputFormatType == yqlib.YamlFormat ||
+		outputFormatType == yqlib.PropertiesFormat {
+		unwrapScalar = true
+	}
+
+	return nil
+}
+
+func configureUnwrapScalar() {
+	if unwrapScalarFlag.IsExplicitlySet() {
+		unwrapScalar = unwrapScalarFlag.IsSet()
+	}
+}
+
+func configureDecoder(evaluateTogether bool) (yqlib.Decoder, error) {
+	format, err := yqlib.FormatFromString(inputFormat)
+	if err != nil {
+		return nil, err
+	}
+	yqlib.ConfiguredYamlPreferences.EvaluateTogether = evaluateTogether
+
+	yqlibDecoder := format.DecoderFactory()
+	if yqlibDecoder == nil {
+		return nil, fmt.Errorf("no support for %s input format", inputFormat)
+	}
+	return yqlibDecoder, nil
+}
+
+func configurePrinterWriter(format *yqlib.Format, out io.Writer) (yqlib.PrinterWriter, error) {
+
+	var printerWriter yqlib.PrinterWriter
+
+	if splitFileExp != "" {
+		colorsEnabled = forceColor
+		splitExp, err := yqlib.ExpressionParser.ParseExpression(splitFileExp)
+		if err != nil {
+			return nil, fmt.Errorf("bad split document expression: %w", err)
+		}
+		printerWriter = yqlib.NewMultiPrinterWriter(splitExp, format)
+	} else {
+		printerWriter = yqlib.NewSinglePrinterWriter(out)
+	}
+	return printerWriter, nil
+}
+
+func configureEncoder() (yqlib.Encoder, error) {
+	yqlibOutputFormat, err := yqlib.FormatFromString(outputFormat)
+	if err != nil {
+		return nil, err
+	}
+	yqlib.ConfiguredXMLPreferences.Indent = indent
+	yqlib.ConfiguredYamlPreferences.Indent = indent
+	yqlib.ConfiguredJSONPreferences.Indent = indent
+
+	yqlib.ConfiguredYamlPreferences.UnwrapScalar = unwrapScalar
+	yqlib.ConfiguredPropertiesPreferences.UnwrapScalar = unwrapScalar
+	yqlib.ConfiguredJSONPreferences.UnwrapScalar = unwrapScalar
+
+	yqlib.ConfiguredYamlPreferences.ColorsEnabled = colorsEnabled
+	yqlib.ConfiguredJSONPreferences.ColorsEnabled = colorsEnabled
+
+	yqlib.ConfiguredYamlPreferences.PrintDocSeparators = !noDocSeparators
+
+	encoder := yqlibOutputFormat.EncoderFactory()
+
+	if encoder == nil {
+		return nil, fmt.Errorf("no support for %s output format", outputFormat)
+	}
+	return encoder, err
+}
+
+// this is a hack to enable backwards compatibility with githubactions (which pipe /dev/null into everything)
+// and being able to call yq with the filename as a single parameter
+//
+// without this - yq detects there is stdin (thanks githubactions),
+// then tries to parse the filename as an expression
+func maybeFile(str string) bool {
+	yqlib.GetLogger().Debugf("checking '%v' is a file", str)
+	stat, err := os.Stat(str) // #nosec
+	result := err == nil && !stat.IsDir()
+	if yqlib.GetLogger().IsEnabledFor(logging.DEBUG) {
+		if err != nil {
+			yqlib.GetLogger().Debugf("error: %v", err)
+		} else {
+			yqlib.GetLogger().Debugf("error: %v, dir: %v", err, stat.IsDir())
+		}
+		yqlib.GetLogger().Debugf("result: %v", result)
+	}
+	return result
+}
+
+func processStdInArgs(args []string) []string {
+	stat, err := os.Stdin.Stat()
+	if err != nil {
+		yqlib.GetLogger().Debugf("error getting stdin: %v", err)
+	}
+	pipingStdin := stat != nil && (stat.Mode()&os.ModeCharDevice) == 0
+
+	// if we've been given a file, don't automatically
+	// read from stdin.
+	// this happens if there is more than one argument
+	// or only one argument and its a file
+	if nullInput || !pipingStdin || len(args) > 1 || (len(args) > 0 && maybeFile(args[0])) {
+		return args
+	}
+
+	for _, arg := range args {
+		if arg == "-" {
+			return args
+		}
+	}
+	yqlib.GetLogger().Debugf("missing '-', adding it to the end")
+
+	// we're piping from stdin, but there's no '-' arg
+	// lets add one to the end
+	return append(args, "-")
+}
+
+func processArgs(originalArgs []string) (string, []string, error) {
+	expression := forceExpression
+	args := processStdInArgs(originalArgs)
+	maybeFirstArgIsAFile := len(args) > 0 && maybeFile(args[0])
+
+	if expressionFile == "" && maybeFirstArgIsAFile && strings.HasSuffix(args[0], ".yq") {
+		// lets check if an expression file was given
+		yqlib.GetLogger().Debug("Assuming arg %v is an expression file", args[0])
+		expressionFile = args[0]
+		args = args[1:]
+	}
+
+	if expressionFile != "" {
+		expressionBytes, err := os.ReadFile(expressionFile)
+		if err != nil {
+			return "", nil, err
+		}
+		//replace \r\n (windows) with good ol' unix file endings.
+		expression = strings.ReplaceAll(string(expressionBytes), "\r\n", "\n")
+	}
+
+	yqlib.GetLogger().Debugf("processed args: %v", args)
+	if expression == "" && len(args) > 0 && args[0] != "-" && !maybeFile(args[0]) {
+		yqlib.GetLogger().Debug("assuming expression is '%v'", args[0])
+		expression = args[0]
+		args = args[1:]
+	}
+	return expression, args, nil
+}

cmd/version.go

@@ -1,4 +1,4 @@
-package main
+package cmd
 
 import (
 	"fmt"
@@ -11,21 +11,21 @@ var (
 	GitDescribe string
 
 	// Version is main version number that is being run at the moment.
-	Version = "1.14.0"
+	Version = "v4.46.1"
 
 	// VersionPrerelease is a pre-release marker for the version. If this is "" (empty string)
 	// then it means that it is a final release. Otherwise, this is a pre-release
 	// such as "dev" (in development), "beta", "rc1", etc.
-	VersionPrerelease = "dev"
+	VersionPrerelease = ""
 )
 
 // ProductName is the name of the product
-const ProductName = "yaml"
+const ProductName = "yq"
 
 // GetVersionDisplay composes the parts of the version in a way that's suitable
 // for displaying to humans.
 func GetVersionDisplay() string {
-	return fmt.Sprintf("%s version %s\n", ProductName, getHumanVersion())
+	return fmt.Sprintf("yq (https://github.com/mikefarah/yq/) version %s\n", getHumanVersion())
 }
 
 func getHumanVersion() string {
@@ -35,9 +35,6 @@ func getHumanVersion() string {
 	}
 
 	release := VersionPrerelease
-	if GitDescribe == "" && release == "" {
-		release = "dev"
-	}
 	if release != "" {
 		if !strings.Contains(version, release) {
 			version += fmt.Sprintf("-%s", release)
@@ -48,5 +45,5 @@ func getHumanVersion() string {
 	}
 
 	// Strip off any single quotes added by the git information.
-	return strings.Replace(version, "'", "", -1)
+	return strings.ReplaceAll(version, "'", "")
 }

cmd/version_test.go

@@ -1,15 +1,20 @@
-package main
+package cmd
 
 import "testing"
 
 func TestGetVersionDisplay(t *testing.T) {
+	var expectedVersion = ProductName + " (https://github.com/mikefarah/yq/) version " + Version
+	if VersionPrerelease != "" {
+		expectedVersion = expectedVersion + "-" + VersionPrerelease
+	}
+	expectedVersion = expectedVersion + "\n"
 	tests := []struct {
 		name string
 		want string
 	}{
 		{
 			name: "Display Version",
-			want: ProductName + " version " + Version + "-dev\n",
+			want: expectedVersion,
 		},
 	}
 	for _, tt := range tests {

commands_test.go

@@ -1,544 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"strings"
-	"testing"
-
-	"github.com/spf13/cobra"
-)
-
-func getRootCommand() *cobra.Command {
-	return newCommandCLI()
-}
-
-func TestRootCmd(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-
-	if !strings.Contains(result.Output, "Usage:") {
-		t.Error("Expected usage message to be printed out, but the usage message was not found.")
-	}
-
-}
-
-func TestRootCmd_VerboseLong(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "--verbose")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-
-	if !verbose {
-		t.Error("Expected verbose to be true")
-	}
-}
-
-func TestRootCmd_VerboseShort(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "-v")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-
-	if !verbose {
-		t.Error("Expected verbose to be true")
-	}
-}
-
-func TestRootCmd_TrimLong(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "--trim")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-
-	if !trimOutput {
-		t.Error("Expected trimOutput to be true")
-	}
-}
-
-func TestRootCmd_TrimShort(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "-t")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-
-	if !trimOutput {
-		t.Error("Expected trimOutput to be true")
-	}
-}
-
-func TestRootCmd_ToJsonLong(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "--tojson")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-
-	if !outputToJSON {
-		t.Error("Expected outputToJSON to be true")
-	}
-}
-
-func TestRootCmd_ToJsonShort(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "-j")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-
-	if !outputToJSON {
-		t.Error("Expected outputToJSON to be true")
-	}
-}
-
-func TestRootCmd_VersionShort(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "-V")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	if !strings.Contains(result.Output, "yaml version") {
-		t.Error("expected version message to be printed out, but the message was not found.")
-	}
-}
-
-func TestRootCmd_VersionLong(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "--version")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	if !strings.Contains(result.Output, "yaml version") {
-		t.Error("expected version message to be printed out, but the message was not found.")
-	}
-}
-
-func TestReadCmd(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "read examples/sample.yaml b.c")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	assertResult(t, "2\n", result.Output)
-}
-
-func TestReadCmd_ArrayYaml(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "read examples/array.yaml [0].gather_facts")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	assertResult(t, "false\n", result.Output)
-}
-
-func TestReadCmd_ArrayYaml_NoPath(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "read examples/array.yaml")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `- become: true
-  gather_facts: false
-  hosts: lalaland
-  name: Apply smth
-  roles:
-  - lala
-  - land
-  serial: 1
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestReadCmd_ArrayYaml_OneElement(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "read examples/array.yaml [0]")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `become: true
-gather_facts: false
-hosts: lalaland
-name: Apply smth
-roles:
-- lala
-- land
-serial: 1
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestReadCmd_ArrayYaml_Splat(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "read examples/array.yaml [*]")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `- become: true
-  gather_facts: false
-  hosts: lalaland
-  name: Apply smth
-  roles:
-  - lala
-  - land
-  serial: 1
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestReadCmd_ArrayYaml_SplatKey(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "read examples/array.yaml [*].gather_facts")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := "- false\n"
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestReadCmd_ArrayYaml_ErrorBadPath(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "read examples/array.yaml [x].gather_facts")
-	if result.Error == nil {
-		t.Error("Expected command to fail due to invalid path")
-	}
-	expectedOutput := `Error accessing array: strconv.ParseInt: parsing "x": invalid syntax`
-	assertResult(t, expectedOutput, result.Error.Error())
-}
-
-func TestReadCmd_ArrayYaml_Splat_ErrorBadPath(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "read examples/array.yaml [*].roles[x]")
-	if result.Error == nil {
-		t.Error("Expected command to fail due to invalid path")
-	}
-	expectedOutput := `Error accessing array: strconv.ParseInt: parsing "x": invalid syntax`
-	assertResult(t, expectedOutput, result.Error.Error())
-}
-
-func TestReadCmd_Error(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "read")
-	if result.Error == nil {
-		t.Error("Expected command to fail due to missing arg")
-	}
-	expectedOutput := `Must provide filename`
-	assertResult(t, expectedOutput, result.Error.Error())
-}
-
-func TestReadCmd_ErrorEmptyFilename(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "read  ")
-	if result.Error == nil {
-		t.Error("Expected command to fail due to missing arg")
-	}
-	expectedOutput := `Must provide filename`
-	assertResult(t, expectedOutput, result.Error.Error())
-}
-
-func TestReadCmd_ErrorUnreadableFile(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "read fake-unknown")
-	if result.Error == nil {
-		t.Error("Expected command to fail due to unknown file")
-	}
-	expectedOutput := `open fake-unknown: no such file or directory`
-	assertResult(t, expectedOutput, result.Error.Error())
-}
-
-func TestReadCmd_ErrorBadPath(t *testing.T) {
-	content := `b:
-  d:
-    e:
-      - 3
-      - 4
-    f:
-      - 1
-      - 2
-`
-	filename := writeTempYamlFile(content)
-	defer removeTempYamlFile(filename)
-
-	cmd := getRootCommand()
-	result := runCmd(cmd, fmt.Sprintf("read %s b.d.*.[x]", filename))
-	if result.Error == nil {
-		t.Fatal("Expected command to fail due to invalid path")
-	}
-	expectedOutput := `Error accessing array: strconv.ParseInt: parsing "x": invalid syntax`
-	assertResult(t, expectedOutput, result.Error.Error())
-}
-
-func TestReadCmd_Verbose(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "-v read examples/sample.yaml b.c")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	assertResult(t, "2\n", result.Output)
-}
-
-func TestReadCmd_NoTrim(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "--trim=false read examples/sample.yaml b.c")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	assertResult(t, "2\n\n", result.Output)
-}
-
-func TestReadCmd_ToJson(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "-j read examples/sample.yaml b.c")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	assertResult(t, "2\n", result.Output)
-}
-
-func TestNewCmd(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "new b.c 3")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `b:
-  c: 3
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestNewCmd_Error(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "new b.c")
-	if result.Error == nil {
-		t.Error("Expected command to fail due to missing arg")
-	}
-	expectedOutput := `Must provide <path_to_update> <value>`
-	assertResult(t, expectedOutput, result.Error.Error())
-}
-
-func TestNewCmd_Verbose(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "-v new b.c 3")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `b:
-  c: 3
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestNewCmd_ToJson(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "-j new b.c 3")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `{"b":{"c":3}}
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestWriteCmd(t *testing.T) {
-	content := `b:
-  c: 3
-`
-	filename := writeTempYamlFile(content)
-	defer removeTempYamlFile(filename)
-
-	cmd := getRootCommand()
-	result := runCmd(cmd, fmt.Sprintf("write %s b.c 7", filename))
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `b:
-  c: 7
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestWriteCmd_EmptyArray(t *testing.T) {
-	content := `b: 3`
-	filename := writeTempYamlFile(content)
-	defer removeTempYamlFile(filename)
-
-	cmd := getRootCommand()
-	result := runCmd(cmd, fmt.Sprintf("write %s a []", filename))
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `b: 3
-a: []
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestWriteCmd_Error(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "write")
-	if result.Error == nil {
-		t.Error("Expected command to fail due to missing arg")
-	}
-	expectedOutput := `Must provide <filename> <path_to_update> <value>`
-	assertResult(t, expectedOutput, result.Error.Error())
-}
-
-func TestWriteCmd_ErrorUnreadableFile(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "write fake-unknown a.b 3")
-	if result.Error == nil {
-		t.Error("Expected command to fail due to unknown file")
-	}
-	expectedOutput := `open fake-unknown: no such file or directory`
-	assertResult(t, expectedOutput, result.Error.Error())
-}
-
-func TestWriteCmd_Verbose(t *testing.T) {
-	content := `b:
-  c: 3
-`
-	filename := writeTempYamlFile(content)
-	defer removeTempYamlFile(filename)
-
-	cmd := getRootCommand()
-	result := runCmd(cmd, fmt.Sprintf("-v write %s b.c 7", filename))
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `b:
-  c: 7
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestWriteCmd_Inplace(t *testing.T) {
-	content := `b:
-  c: 3
-`
-	filename := writeTempYamlFile(content)
-	defer removeTempYamlFile(filename)
-
-	cmd := getRootCommand()
-	result := runCmd(cmd, fmt.Sprintf("write -i %s b.c 7", filename))
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	gotOutput := readTempYamlFile(filename)
-	expectedOutput := `b:
-  c: 7`
-	assertResult(t, expectedOutput, gotOutput)
-}
-
-func TestWriteCmd_Append(t *testing.T) {
-	content := `b:
-  - foo
-`
-	filename := writeTempYamlFile(content)
-	defer removeTempYamlFile(filename)
-
-	cmd := getRootCommand()
-	result := runCmd(cmd, fmt.Sprintf("write %s b[+] 7", filename))
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `b:
-- foo
-- 7
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestWriteCmd_AppendEmptyArray(t *testing.T) {
-	content := `a: 2
-`
-	filename := writeTempYamlFile(content)
-	defer removeTempYamlFile(filename)
-
-	cmd := getRootCommand()
-	result := runCmd(cmd, fmt.Sprintf("write %s b[+] v", filename))
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `a: 2
-b:
-- v
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestMergeCmd(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "merge examples/data1.yaml examples/data2.yaml")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `a: simple
-b:
-- 1
-- 2
-c:
-  test: 1
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestMergeCmd_Error(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "merge examples/data1.yaml")
-	if result.Error == nil {
-		t.Error("Expected command to fail due to missing arg")
-	}
-	expectedOutput := `Must provide at least 2 yaml files`
-	assertResult(t, expectedOutput, result.Error.Error())
-}
-
-func TestMergeCmd_ErrorUnreadableFile(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "merge examples/data1.yaml fake-unknown")
-	if result.Error == nil {
-		t.Error("Expected command to fail due to unknown file")
-	}
-	expectedOutput := `open fake-unknown: no such file or directory`
-	assertResult(t, expectedOutput, result.Error.Error())
-}
-
-func TestMergeCmd_Verbose(t *testing.T) {
-	cmd := getRootCommand()
-	result := runCmd(cmd, "-v merge examples/data1.yaml examples/data2.yaml")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `a: simple
-b:
-- 1
-- 2
-c:
-  test: 1
-`
-	assertResult(t, expectedOutput, result.Output)
-}
-
-func TestMergeCmd_Inplace(t *testing.T) {
-	filename := writeTempYamlFile(readTempYamlFile("examples/data1.yaml"))
-	defer removeTempYamlFile(filename)
-
-	cmd := getRootCommand()
-	result := runCmd(cmd, fmt.Sprintf("merge -i %s examples/data2.yaml", filename))
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	gotOutput := readTempYamlFile(filename)
-	expectedOutput := `a: simple
-b:
-- 1
-- 2
-c:
-  test: 1`
-	assertResult(t, expectedOutput, gotOutput)
-}

cspell.config.yaml

@@ -0,0 +1,14 @@
+---
+$schema: https://raw.githubusercontent.com/streetsidesoftware/cspell/main/cspell.schema.json
+version: '0.2'
+language: en-GB
+dictionaryDefinitions:
+  - name: project-words
+    path: './project-words.txt'
+    addWords: true
+dictionaries:
+  - project-words
+ignorePaths:
+  - 'vendor'
+  - 'bin'
+  - '/project-words.txt'

data_navigator.go

@@ -1,201 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"sort"
-	"strconv"
-
-	"gopkg.in/yaml.v2"
-)
-
-func entryInSlice(context yaml.MapSlice, key interface{}) *yaml.MapItem {
-	for idx := range context {
-		var entry = &context[idx]
-		if entry.Key == key {
-			return entry
-		}
-	}
-	return nil
-}
-
-func writeMap(context interface{}, paths []string, value interface{}) yaml.MapSlice {
-	log.Debugf("writeMap for %v for %v with value %v\n", paths, context, value)
-
-	var mapSlice yaml.MapSlice
-	switch context.(type) {
-	case yaml.MapSlice:
-		mapSlice = context.(yaml.MapSlice)
-	default:
-		mapSlice = make(yaml.MapSlice, 0)
-	}
-
-	if len(paths) == 0 {
-		return mapSlice
-	}
-
-	child := entryInSlice(mapSlice, paths[0])
-	if child == nil {
-		newChild := yaml.MapItem{Key: paths[0]}
-		mapSlice = append(mapSlice, newChild)
-		child = entryInSlice(mapSlice, paths[0])
-		log.Debugf("\tAppended child at %v for mapSlice %v\n", paths[0], mapSlice)
-	}
-
-	log.Debugf("\tchild.Value %v\n", child.Value)
-
-	remainingPaths := paths[1:]
-	child.Value = updatedChildValue(child.Value, remainingPaths, value)
-	log.Debugf("\tReturning mapSlice %v\n", mapSlice)
-	return mapSlice
-}
-
-func updatedChildValue(child interface{}, remainingPaths []string, value interface{}) interface{} {
-	if len(remainingPaths) == 0 {
-		return value
-	}
-
-	_, nextIndexErr := strconv.ParseInt(remainingPaths[0], 10, 64)
-	if nextIndexErr != nil && remainingPaths[0] != "+" {
-		// must be a map
-		return writeMap(child, remainingPaths, value)
-	}
-
-	// must be an array
-	return writeArray(child, remainingPaths, value)
-}
-
-func writeArray(context interface{}, paths []string, value interface{}) []interface{} {
-	log.Debugf("writeArray for %v for %v with value %v\n", paths, context, value)
-	var array []interface{}
-	switch context.(type) {
-	case []interface{}:
-		array = context.([]interface{})
-	default:
-		array = make([]interface{}, 0)
-	}
-
-	if len(paths) == 0 {
-		return array
-	}
-
-	log.Debugf("\tarray %v\n", array)
-
-	rawIndex := paths[0]
-	var index int64
-	// the append array indicator
-	if rawIndex == "+" {
-		index = int64(len(array))
-	} else {
-		index, _ = strconv.ParseInt(rawIndex, 10, 64)
-	}
-	// writeArray is only called by updatedChildValue which handles parsing the
-	// index, as such this renders this dead code.
-	// if err != nil {
-	// 	return array, fmt.Errorf("Error accessing array: %v", err)
-	// }
-	for index >= int64(len(array)) {
-		array = append(array, nil)
-	}
-	currentChild := array[index]
-
-	log.Debugf("\tcurrentChild %v\n", currentChild)
-
-	remainingPaths := paths[1:]
-	array[index] = updatedChildValue(currentChild, remainingPaths, value)
-	log.Debugf("\tReturning array %v\n", array)
-	return array
-}
-
-func readMap(context yaml.MapSlice, head string, tail []string) (interface{}, error) {
-	if head == "*" {
-		return readMapSplat(context, tail)
-	}
-	var value interface{}
-
-	entry := entryInSlice(context, head)
-	if entry != nil {
-		value = entry.Value
-	}
-	return calculateValue(value, tail)
-}
-
-func readMapSplat(context yaml.MapSlice, tail []string) (interface{}, error) {
-	var newArray = make([]interface{}, len(context))
-	var i = 0
-	for _, entry := range context {
-		if len(tail) > 0 {
-			val, err := recurse(entry.Value, tail[0], tail[1:])
-			if err != nil {
-				return nil, err
-			}
-			newArray[i] = val
-		} else {
-			newArray[i] = entry.Value
-		}
-		i++
-	}
-	return newArray, nil
-}
-
-func recurse(value interface{}, head string, tail []string) (interface{}, error) {
-	switch value.(type) {
-	case []interface{}:
-		if head == "*" {
-			return readArraySplat(value.([]interface{}), tail)
-		}
-		index, err := strconv.ParseInt(head, 10, 64)
-		if err != nil {
-			return nil, fmt.Errorf("Error accessing array: %v", err)
-		}
-		return readArray(value.([]interface{}), index, tail)
-	case yaml.MapSlice:
-		return readMap(value.(yaml.MapSlice), head, tail)
-	default:
-		return nil, nil
-	}
-}
-
-func readArray(array []interface{}, head int64, tail []string) (interface{}, error) {
-	if head >= int64(len(array)) {
-		return nil, nil
-	}
-
-	value := array[head]
-	return calculateValue(value, tail)
-}
-
-func readArraySplat(array []interface{}, tail []string) (interface{}, error) {
-	var newArray = make([]interface{}, len(array))
-	for index, value := range array {
-		val, err := calculateValue(value, tail)
-		if err != nil {
-			return nil, err
-		}
-		newArray[index] = val
-	}
-	return newArray, nil
-}
-
-func calculateValue(value interface{}, tail []string) (interface{}, error) {
-	if len(tail) > 0 {
-		return recurse(value, tail[0], tail[1:])
-	}
-	return value, nil
-}
-
-func mapToMapSlice(data map[interface{}]interface{}) yaml.MapSlice {
-	var mapSlice yaml.MapSlice
-
-	for k, v := range data {
-		if mv, ok := v.(map[interface{}]interface{}); ok {
-			v = mapToMapSlice(mv)
-		}
-		item := yaml.MapItem{Key: k, Value: v}
-		mapSlice = append(mapSlice, item)
-	}
-
-	// because the parsing of the yaml was done via a map the order will be inconsistent
-	// apply order to allow a consistent output
-	sort.SliceStable(mapSlice, func(i, j int) bool { return mapSlice[i].Key.(string) < mapSlice[j].Key.(string) })
-	return mapSlice
-}

data_navigator_test.go

@@ -1,310 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"sort"
-	"testing"
-
-	yaml "gopkg.in/yaml.v2"
-)
-
-func TestReadMap_simple(t *testing.T) {
-	var data = parseData(`
----
-b:
-  c: 2
-`)
-	got, _ := readMap(data, "b", []string{"c"})
-	assertResult(t, 2, got)
-}
-
-func TestReadMap_splat(t *testing.T) {
-	var data = parseData(`
----
-mapSplat:
-  item1: things
-  item2: whatever
-`)
-	res, _ := readMap(data, "mapSplat", []string{"*"})
-	result := res.([]interface{})
-	var actual = []string{result[0].(string), result[1].(string)}
-	sort.Strings(actual)
-	assertResult(t, "[things whatever]", fmt.Sprintf("%v", actual))
-}
-
-func TestReadMap_deep_splat(t *testing.T) {
-	var data = parseData(`
----
-mapSplatDeep:
-  item1:
-    cats: bananas
-  item2:
-    cats: apples
-`)
-
-	res, _ := readMap(data, "mapSplatDeep", []string{"*", "cats"})
-	result := res.([]interface{})
-	var actual = []string{result[0].(string), result[1].(string)}
-	sort.Strings(actual)
-	assertResult(t, "[apples bananas]", fmt.Sprintf("%v", actual))
-}
-
-func TestReadMap_key_doesnt_exist(t *testing.T) {
-	var data = parseData(`
----
-b:
-  c: 2
-`)
-	got, _ := readMap(data, "b.x.f", []string{"c"})
-	assertResult(t, nil, got)
-}
-
-func TestReadMap_recurse_against_string(t *testing.T) {
-	var data = parseData(`
----
-a: cat
-`)
-	got, _ := readMap(data, "a", []string{"b"})
-	assertResult(t, nil, got)
-}
-
-func TestReadMap_with_array(t *testing.T) {
-	var data = parseData(`
----
-b:
-  d:
-    - 3
-    - 4
-`)
-	got, _ := readMap(data, "b", []string{"d", "1"})
-	assertResult(t, 4, got)
-}
-
-func TestReadMap_with_array_and_bad_index(t *testing.T) {
-	var data = parseData(`
----
-b:
-  d:
-    - 3
-    - 4
-`)
-	_, err := readMap(data, "b", []string{"d", "x"})
-	if err == nil {
-		t.Fatal("Expected error due to invalid path")
-	}
-	expectedOutput := `Error accessing array: strconv.ParseInt: parsing "x": invalid syntax`
-	assertResult(t, expectedOutput, err.Error())
-}
-
-func TestReadMap_with_mapsplat_array_and_bad_index(t *testing.T) {
-	var data = parseData(`
----
-b:
-  d:
-    e:
-      - 3
-      - 4
-    f:
-      - 1
-      - 2
-`)
-	_, err := readMap(data, "b", []string{"d", "*", "x"})
-	if err == nil {
-		t.Fatal("Expected error due to invalid path")
-	}
-	expectedOutput := `Error accessing array: strconv.ParseInt: parsing "x": invalid syntax`
-	assertResult(t, expectedOutput, err.Error())
-}
-
-func TestReadMap_with_arraysplat_map_array_and_bad_index(t *testing.T) {
-	var data = parseData(`
----
-b:
-  d:
-    - names:
-        - fred
-        - smith
-    - names:
-        - sam
-        - bo
-`)
-	_, err := readMap(data, "b", []string{"d", "*", "names", "x"})
-	if err == nil {
-		t.Fatal("Expected error due to invalid path")
-	}
-	expectedOutput := `Error accessing array: strconv.ParseInt: parsing "x": invalid syntax`
-	assertResult(t, expectedOutput, err.Error())
-}
-
-func TestReadMap_with_array_out_of_bounds(t *testing.T) {
-	var data = parseData(`
----
-b:
-  d:
-    - 3
-    - 4
-`)
-	got, _ := readMap(data, "b", []string{"d", "3"})
-	assertResult(t, nil, got)
-}
-
-func TestReadMap_with_array_out_of_bounds_by_1(t *testing.T) {
-	var data = parseData(`
----
-b:
-  d:
-    - 3
-    - 4
-`)
-	got, _ := readMap(data, "b", []string{"d", "2"})
-	assertResult(t, nil, got)
-}
-
-func TestReadMap_with_array_splat(t *testing.T) {
-	var data = parseData(`
-e:
-  -
-    name: Fred
-    thing: cat
-  -
-    name: Sam
-    thing: dog
-`)
-	got, _ := readMap(data, "e", []string{"*", "name"})
-	assertResult(t, "[Fred Sam]", fmt.Sprintf("%v", got))
-}
-
-func TestWrite_really_simple(t *testing.T) {
-	var data = parseData(`
-    b: 2
-`)
-
-	updated := writeMap(data, []string{"b"}, "4")
-	b := entryInSlice(updated, "b").Value
-	assertResult(t, "4", b)
-}
-
-func TestWrite_simple(t *testing.T) {
-	var data = parseData(`
-b:
-  c: 2
-`)
-
-	updated := writeMap(data, []string{"b", "c"}, "4")
-	b := entryInSlice(updated, "b").Value.(yaml.MapSlice)
-	c := entryInSlice(b, "c").Value
-	assertResult(t, "4", c)
-}
-
-func TestWrite_new(t *testing.T) {
-	var data = parseData(`
-b:
-  c: 2
-`)
-
-	updated := writeMap(data, []string{"b", "d"}, "4")
-	b := entryInSlice(updated, "b").Value.(yaml.MapSlice)
-	d := entryInSlice(b, "d").Value
-	assertResult(t, "4", d)
-}
-
-func TestWrite_new_deep(t *testing.T) {
-	var data = parseData(`
-b:
-  c: 2
-`)
-
-	updated := writeMap(data, []string{"b", "d", "f"}, "4")
-	got, _ := readMap(updated, "b", []string{"d", "f"})
-	assertResult(t, "4", got)
-}
-
-func TestWrite_array(t *testing.T) {
-	var data = parseData(`
-b:
-  - aa
-`)
-
-	updated := writeMap(data, []string{"b", "0"}, "bb")
-
-	b := entryInSlice(updated, "b").Value.([]interface{})
-	assertResult(t, "bb", b[0].(string))
-}
-
-func TestWrite_new_array(t *testing.T) {
-	var data = parseData(`
-b:
-  c: 2
-`)
-
-	updated := writeMap(data, []string{"b", "0"}, "4")
-	got, _ := readMap(updated, "b", []string{"0"})
-	assertResult(t, "4", got)
-}
-
-func TestWrite_new_array_deep(t *testing.T) {
-	var data = parseData(`
-b:
-  c: 2
-`)
-
-	var expected = `b:
-- c: "4"`
-
-	updated := writeMap(data, []string{"b", "0", "c"}, "4")
-	got, _ := yamlToString(updated)
-	assertResult(t, expected, got)
-}
-
-func TestWrite_new_map_array_deep(t *testing.T) {
-	var data = parseData(`
-b:
-  c: 2
-`)
-
-	updated := writeMap(data, []string{"b", "d", "0"}, "4")
-	got, _ := readMap(updated, "b", []string{"d", "0"})
-	assertResult(t, "4", got)
-}
-
-func TestWrite_add_to_array(t *testing.T) {
-	var data = parseData(`
-b:
-  - aa
-`)
-
-	var expected = `b:
-- aa
-- bb`
-
-	updated := writeMap(data, []string{"b", "1"}, "bb")
-	got, _ := yamlToString(updated)
-	assertResult(t, expected, got)
-}
-
-func TestWrite_with_no_tail(t *testing.T) {
-	var data = parseData(`
-b:
-  c: 2
-`)
-	updated := writeMap(data, []string{"b"}, "4")
-
-	b := entryInSlice(updated, "b").Value
-	assertResult(t, "4", fmt.Sprintf("%v", b))
-}
-
-func TestWriteMap_no_paths(t *testing.T) {
-	var data = parseData(`
-b: 5
-`)
-
-	result := writeMap(data, []string{}, 4)
-	assertResult(t, fmt.Sprintf("%v", data), fmt.Sprintf("%v", result))
-}
-
-func TestWriteArray_no_paths(t *testing.T) {
-	var data = make([]interface{}, 1)
-	data[0] = "mike"
-	result := writeArray(data, []string{}, 4)
-	assertResult(t, fmt.Sprintf("%v", data), fmt.Sprintf("%v", result))
-}

docs/404.html

@@ -1,315 +0,0 @@
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-        
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-            Type to start searching
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-        <svg viewBox="0 0 24 24" width="24" height="24">
-          <use xlink:href="#github" width="24" height="24"></use>
-        </svg>
-      </div>
-    
-    <div class="md-source__repository">
-      mikefarah/yaml
-    </div>
-  </a>
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docs/assets/images/icons/gitlab-5ad3f9f9e5.svg

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docs/assets/javascripts/lunr/lunr.da.js

@@ -1 +0,0 @@
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.da=function(){this.pipeline.reset(),this.pipeline.add(e.da.trimmer,e.da.stopWordFilter,e.da.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.da.stemmer))},e.da.wordCharacters="A-Za-zªºÀ-ÖØ-öø-ʸˠ-ˤᴀ-ᴥᴬ-ᵜᵢ-ᵥᵫ-ᵷᵹ-ᶾḀ-ỿⁱⁿₐ-ₜKÅℲⅎⅠ-ↈⱠ-ⱿꜢ-ꞇꞋ-ꞭꞰ-ꞷꟷ-ꟿꬰ-ꭚꭜ-ꭤff-stＡ-Ｚａ-ｚ",e.da.trimmer=e.trimmerSupport.generateTrimmer(e.da.wordCharacters),e.Pipeline.registerFunction(e.da.trimmer,"trimmer-da"),e.da.stemmer=function(){var r=e.stemmerSupport.Among,i=e.stemmerSupport.SnowballProgram,n=new function(){function e(){var e,r=f.cursor+3;if(d=f.limit,0<=r&&r<=f.limit){for(a=r;;){if(e=f.cursor,f.in_grouping(w,97,248)){f.cursor=e;break}if(f.cursor=e,e>=f.limit)return;f.cursor++}for(;!f.out_grouping(w,97,248);){if(f.cursor>=f.limit)return;f.cursor++}(d=f.cursor)<a&&(d=a)}}function n(){var e,r;if(f.cursor>=d&&(r=f.limit_backward,f.limit_backward=d,f.ket=f.cursor,e=f.find_among_b(c,32),f.limit_backward=r,e))switch(f.bra=f.cursor,e){case 1:f.slice_del();break;case 2:f.in_grouping_b(p,97,229)&&f.slice_del()}}function t(){var e,r=f.limit-f.cursor;f.cursor>=d&&(e=f.limit_backward,f.limit_backward=d,f.ket=f.cursor,f.find_among_b(l,4)?(f.bra=f.cursor,f.limit_backward=e,f.cursor=f.limit-r,f.cursor>f.limit_backward&&(f.cursor--,f.bra=f.cursor,f.slice_del())):f.limit_backward=e)}function s(){var e,r,i,n=f.limit-f.cursor;if(f.ket=f.cursor,f.eq_s_b(2,"st")&&(f.bra=f.cursor,f.eq_s_b(2,"ig")&&f.slice_del()),f.cursor=f.limit-n,f.cursor>=d&&(r=f.limit_backward,f.limit_backward=d,f.ket=f.cursor,e=f.find_among_b(m,5),f.limit_backward=r,e))switch(f.bra=f.cursor,e){case 1:f.slice_del(),i=f.limit-f.cursor,t(),f.cursor=f.limit-i;break;case 2:f.slice_from("løs")}}function o(){var e;f.cursor>=d&&(e=f.limit_backward,f.limit_backward=d,f.ket=f.cursor,f.out_grouping_b(w,97,248)?(f.bra=f.cursor,u=f.slice_to(u),f.limit_backward=e,f.eq_v_b(u)&&f.slice_del()):f.limit_backward=e)}var a,d,u,c=[new r("hed",-1,1),new r("ethed",0,1),new r("ered",-1,1),new r("e",-1,1),new r("erede",3,1),new r("ende",3,1),new r("erende",5,1),new r("ene",3,1),new r("erne",3,1),new r("ere",3,1),new r("en",-1,1),new r("heden",10,1),new r("eren",10,1),new r("er",-1,1),new r("heder",13,1),new r("erer",13,1),new r("s",-1,2),new r("heds",16,1),new r("es",16,1),new r("endes",18,1),new r("erendes",19,1),new r("enes",18,1),new r("ernes",18,1),new r("eres",18,1),new r("ens",16,1),new r("hedens",24,1),new r("erens",24,1),new r("ers",16,1),new r("ets",16,1),new r("erets",28,1),new r("et",-1,1),new r("eret",30,1)],l=[new r("gd",-1,-1),new r("dt",-1,-1),new r("gt",-1,-1),new r("kt",-1,-1)],m=[new r("ig",-1,1),new r("lig",0,1),new r("elig",1,1),new r("els",-1,1),new r("løst",-1,2)],w=[17,65,16,1,0,0,0,0,0,0,0,0,0,0,0,0,48,0,128],p=[239,254,42,3,0,0,0,0,0,0,0,0,0,0,0,0,16],f=new i;this.setCurrent=function(e){f.setCurrent(e)},this.getCurrent=function(){return f.getCurrent()},this.stem=function(){var r=f.cursor;return e(),f.limit_backward=r,f.cursor=f.limit,n(),f.cursor=f.limit,t(),f.cursor=f.limit,s(),f.cursor=f.limit,o(),!0}};return function(e){return"function"==typeof e.update?e.update(function(e){return n.setCurrent(e),n.stem(),n.getCurrent()}):(n.setCurrent(e),n.stem(),n.getCurrent())}}(),e.Pipeline.registerFunction(e.da.stemmer,"stemmer-da"),e.da.stopWordFilter=e.generateStopWordFilter("ad af alle alt anden at blev blive bliver da de dem den denne der deres det dette dig din disse dog du efter eller en end er et for fra ham han hans har havde have hende hendes her hos hun hvad hvis hvor i ikke ind jeg jer jo kunne man mange med meget men mig min mine mit mod ned noget nogle nu når og også om op os over på selv sig sin sine sit skal skulle som sådan thi til ud under var vi vil ville vor være været".split(" ")),e.Pipeline.registerFunction(e.da.stopWordFilter,"stopWordFilter-da")}});

docs/assets/javascripts/lunr/lunr.jp.js

@@ -1 +0,0 @@
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");var r="2"==e.version[0];e.jp=function(){this.pipeline.reset(),this.pipeline.add(e.jp.stopWordFilter,e.jp.stemmer),r?this.tokenizer=e.jp.tokenizer:(e.tokenizer&&(e.tokenizer=e.jp.tokenizer),this.tokenizerFn&&(this.tokenizerFn=e.jp.tokenizer))};var t=new e.TinySegmenter;e.jp.tokenizer=function(n){if(!arguments.length||null==n||void 0==n)return[];if(Array.isArray(n))return n.map(function(t){return r?new e.Token(t.toLowerCase()):t.toLowerCase()});for(var i=n.toString().toLowerCase().replace(/^\s+/,""),o=i.length-1;o>=0;o--)if(/\S/.test(i.charAt(o))){i=i.substring(0,o+1);break}return t.segment(i).filter(function(e){return!!e}).map(function(t){return r?new e.Token(t):t})},e.jp.stemmer=function(){return function(e){return e}}(),e.Pipeline.registerFunction(e.jp.stemmer,"stemmer-jp"),e.jp.wordCharacters="一二三四五六七八九十百千万億兆一-龠々〆ヵヶぁ-んァ-ヴーｱ-ﾝﾞa-zA-Zａ-ｚＡ-Ｚ0-9０-９",e.jp.stopWordFilter=function(t){if(-1===e.jp.stopWordFilter.stopWords.indexOf(r?t.toString():t))return t},e.jp.stopWordFilter=e.generateStopWordFilter("これ それ あれ この その あの ここ そこ あそこ こちら どこ だれ なに なん 何 私 貴方 貴方方 我々 私達 あの人 あのかた 彼女 彼 です あります おります います は が の に を で え から まで より も どの と し それで しかし".split(" ")),e.Pipeline.registerFunction(e.jp.stopWordFilter,"stopWordFilter-jp")}});

docs/assets/javascripts/lunr/lunr.multi.js

@@ -1 +0,0 @@
-!function(e,i){"function"==typeof define&&define.amd?define(i):"object"==typeof exports?module.exports=i():i()(e.lunr)}(this,function(){return function(e){e.multiLanguage=function(){for(var i=Array.prototype.slice.call(arguments),t=i.join("-"),r="",n=[],s=[],p=0;p<i.length;++p)"en"==i[p]?(r+="\\w",n.unshift(e.stopWordFilter),n.push(e.stemmer),s.push(e.stemmer)):(r+=e[i[p]].wordCharacters,n.unshift(e[i[p]].stopWordFilter),n.push(e[i[p]].stemmer),s.push(e[i[p]].stemmer));var o=e.trimmerSupport.generateTrimmer(r);return e.Pipeline.registerFunction(o,"lunr-multi-trimmer-"+t),n.unshift(o),function(){this.pipeline.reset(),this.pipeline.add.apply(this.pipeline,n),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add.apply(this.searchPipeline,s))}}}});

docs/assets/javascripts/lunr/lunr.no.js

@@ -1 +0,0 @@
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.no=function(){this.pipeline.reset(),this.pipeline.add(e.no.trimmer,e.no.stopWordFilter,e.no.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.no.stemmer))},e.no.wordCharacters="A-Za-zªºÀ-ÖØ-öø-ʸˠ-ˤᴀ-ᴥᴬ-ᵜᵢ-ᵥᵫ-ᵷᵹ-ᶾḀ-ỿⁱⁿₐ-ₜKÅℲⅎⅠ-ↈⱠ-ⱿꜢ-ꞇꞋ-ꞭꞰ-ꞷꟷ-ꟿꬰ-ꭚꭜ-ꭤff-stＡ-Ｚａ-ｚ",e.no.trimmer=e.trimmerSupport.generateTrimmer(e.no.wordCharacters),e.Pipeline.registerFunction(e.no.trimmer,"trimmer-no"),e.no.stemmer=function(){var r=e.stemmerSupport.Among,n=e.stemmerSupport.SnowballProgram,i=new function(){function e(){var e,r=w.cursor+3;if(a=w.limit,0<=r||r<=w.limit){for(s=r;;){if(e=w.cursor,w.in_grouping(d,97,248)){w.cursor=e;break}if(e>=w.limit)return;w.cursor=e+1}for(;!w.out_grouping(d,97,248);){if(w.cursor>=w.limit)return;w.cursor++}(a=w.cursor)<s&&(a=s)}}function i(){var e,r,n;if(w.cursor>=a&&(r=w.limit_backward,w.limit_backward=a,w.ket=w.cursor,e=w.find_among_b(m,29),w.limit_backward=r,e))switch(w.bra=w.cursor,e){case 1:w.slice_del();break;case 2:n=w.limit-w.cursor,w.in_grouping_b(c,98,122)?w.slice_del():(w.cursor=w.limit-n,w.eq_s_b(1,"k")&&w.out_grouping_b(d,97,248)&&w.slice_del());break;case 3:w.slice_from("er")}}function t(){var e,r=w.limit-w.cursor;w.cursor>=a&&(e=w.limit_backward,w.limit_backward=a,w.ket=w.cursor,w.find_among_b(u,2)?(w.bra=w.cursor,w.limit_backward=e,w.cursor=w.limit-r,w.cursor>w.limit_backward&&(w.cursor--,w.bra=w.cursor,w.slice_del())):w.limit_backward=e)}function o(){var e,r;w.cursor>=a&&(r=w.limit_backward,w.limit_backward=a,w.ket=w.cursor,(e=w.find_among_b(l,11))?(w.bra=w.cursor,w.limit_backward=r,1==e&&w.slice_del()):w.limit_backward=r)}var s,a,m=[new r("a",-1,1),new r("e",-1,1),new r("ede",1,1),new r("ande",1,1),new r("ende",1,1),new r("ane",1,1),new r("ene",1,1),new r("hetene",6,1),new r("erte",1,3),new r("en",-1,1),new r("heten",9,1),new r("ar",-1,1),new r("er",-1,1),new r("heter",12,1),new r("s",-1,2),new r("as",14,1),new r("es",14,1),new r("edes",16,1),new r("endes",16,1),new r("enes",16,1),new r("hetenes",19,1),new r("ens",14,1),new r("hetens",21,1),new r("ers",14,1),new r("ets",14,1),new r("et",-1,1),new r("het",25,1),new r("ert",-1,3),new r("ast",-1,1)],u=[new r("dt",-1,-1),new r("vt",-1,-1)],l=[new r("leg",-1,1),new r("eleg",0,1),new r("ig",-1,1),new r("eig",2,1),new r("lig",2,1),new r("elig",4,1),new r("els",-1,1),new r("lov",-1,1),new r("elov",7,1),new r("slov",7,1),new r("hetslov",9,1)],d=[17,65,16,1,0,0,0,0,0,0,0,0,0,0,0,0,48,0,128],c=[119,125,149,1],w=new n;this.setCurrent=function(e){w.setCurrent(e)},this.getCurrent=function(){return w.getCurrent()},this.stem=function(){var r=w.cursor;return e(),w.limit_backward=r,w.cursor=w.limit,i(),w.cursor=w.limit,t(),w.cursor=w.limit,o(),!0}};return function(e){return"function"==typeof e.update?e.update(function(e){return i.setCurrent(e),i.stem(),i.getCurrent()}):(i.setCurrent(e),i.stem(),i.getCurrent())}}(),e.Pipeline.registerFunction(e.no.stemmer,"stemmer-no"),e.no.stopWordFilter=e.generateStopWordFilter("alle at av bare begge ble blei bli blir blitt både båe da de deg dei deim deira deires dem den denne der dere deres det dette di din disse ditt du dykk dykkar då eg ein eit eitt eller elles en enn er et ett etter for fordi fra før ha hadde han hans har hennar henne hennes her hjå ho hoe honom hoss hossen hun hva hvem hver hvilke hvilken hvis hvor hvordan hvorfor i ikke ikkje ikkje ingen ingi inkje inn inni ja jeg kan kom korleis korso kun kunne kva kvar kvarhelst kven kvi kvifor man mange me med medan meg meget mellom men mi min mine mitt mot mykje ned no noe noen noka noko nokon nokor nokre nå når og også om opp oss over på samme seg selv si si sia sidan siden sin sine sitt sjøl skal skulle slik so som som somme somt så sånn til um upp ut uten var vart varte ved vere verte vi vil ville vore vors vort vår være være vært å".split(" ")),e.Pipeline.registerFunction(e.no.stopWordFilter,"stopWordFilter-no")}});

docs/assets/javascripts/lunr/lunr.stemmer.support.js

@@ -1 +0,0 @@
-!function(r,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t():t()(r.lunr)}(this,function(){return function(r){r.stemmerSupport={Among:function(r,t,i,s){if(this.toCharArray=function(r){for(var t=r.length,i=new Array(t),s=0;s<t;s++)i[s]=r.charCodeAt(s);return i},!r&&""!=r||!t&&0!=t||!i)throw"Bad Among initialisation: s:"+r+", substring_i: "+t+", result: "+i;this.s_size=r.length,this.s=this.toCharArray(r),this.substring_i=t,this.result=i,this.method=s},SnowballProgram:function(){var r;return{bra:0,ket:0,limit:0,cursor:0,limit_backward:0,setCurrent:function(t){r=t,this.cursor=0,this.limit=t.length,this.limit_backward=0,this.bra=this.cursor,this.ket=this.limit},getCurrent:function(){var t=r;return r=null,t},in_grouping:function(t,i,s){if(this.cursor<this.limit){var e=r.charCodeAt(this.cursor);if(e<=s&&e>=i&&(e-=i,t[e>>3]&1<<(7&e)))return this.cursor++,!0}return!1},in_grouping_b:function(t,i,s){if(this.cursor>this.limit_backward){var e=r.charCodeAt(this.cursor-1);if(e<=s&&e>=i&&(e-=i,t[e>>3]&1<<(7&e)))return this.cursor--,!0}return!1},out_grouping:function(t,i,s){if(this.cursor<this.limit){var e=r.charCodeAt(this.cursor);if(e>s||e<i)return this.cursor++,!0;if(e-=i,!(t[e>>3]&1<<(7&e)))return this.cursor++,!0}return!1},out_grouping_b:function(t,i,s){if(this.cursor>this.limit_backward){var e=r.charCodeAt(this.cursor-1);if(e>s||e<i)return this.cursor--,!0;if(e-=i,!(t[e>>3]&1<<(7&e)))return this.cursor--,!0}return!1},eq_s:function(t,i){if(this.limit-this.cursor<t)return!1;for(var s=0;s<t;s++)if(r.charCodeAt(this.cursor+s)!=i.charCodeAt(s))return!1;return this.cursor+=t,!0},eq_s_b:function(t,i){if(this.cursor-this.limit_backward<t)return!1;for(var s=0;s<t;s++)if(r.charCodeAt(this.cursor-t+s)!=i.charCodeAt(s))return!1;return this.cursor-=t,!0},find_among:function(t,i){for(var s=0,e=i,n=this.cursor,u=this.limit,o=0,h=0,c=!1;;){for(var a=s+(e-s>>1),f=0,l=o<h?o:h,_=t[a],m=l;m<_.s_size;m++){if(n+l==u){f=-1;break}if(f=r.charCodeAt(n+l)-_.s[m])break;l++}if(f<0?(e=a,h=l):(s=a,o=l),e-s<=1){if(s>0||e==s||c)break;c=!0}}for(;;){if(o>=(_=t[s]).s_size){if(this.cursor=n+_.s_size,!_.method)return _.result;var b=_.method();if(this.cursor=n+_.s_size,b)return _.result}if((s=_.substring_i)<0)return 0}},find_among_b:function(t,i){for(var s=0,e=i,n=this.cursor,u=this.limit_backward,o=0,h=0,c=!1;;){for(var a=s+(e-s>>1),f=0,l=o<h?o:h,_=(m=t[a]).s_size-1-l;_>=0;_--){if(n-l==u){f=-1;break}if(f=r.charCodeAt(n-1-l)-m.s[_])break;l++}if(f<0?(e=a,h=l):(s=a,o=l),e-s<=1){if(s>0||e==s||c)break;c=!0}}for(;;){var m=t[s];if(o>=m.s_size){if(this.cursor=n-m.s_size,!m.method)return m.result;var b=m.method();if(this.cursor=n-m.s_size,b)return m.result}if((s=m.substring_i)<0)return 0}},replace_s:function(t,i,s){var e=s.length-(i-t),n=r.substring(0,t),u=r.substring(i);return r=n+s+u,this.limit+=e,this.cursor>=i?this.cursor+=e:this.cursor>t&&(this.cursor=t),e},slice_check:function(){if(this.bra<0||this.bra>this.ket||this.ket>this.limit||this.limit>r.length)throw"faulty slice operation"},slice_from:function(r){this.slice_check(),this.replace_s(this.bra,this.ket,r)},slice_del:function(){this.slice_from("")},insert:function(r,t,i){var s=this.replace_s(r,t,i);r<=this.bra&&(this.bra+=s),r<=this.ket&&(this.ket+=s)},slice_to:function(){return this.slice_check(),r.substring(this.bra,this.ket)},eq_v_b:function(r){return this.eq_s_b(r.length,r)}}}},r.trimmerSupport={generateTrimmer:function(r){var t=new RegExp("^[^"+r+"]+"),i=new RegExp("[^"+r+"]+$");return function(r){return"function"==typeof r.update?r.update(function(r){return r.replace(t,"").replace(i,"")}):r.replace(t,"").replace(i,"")}}}}});

docs/assets/javascripts/lunr/lunr.sv.js

@@ -1 +0,0 @@
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docs/convert/index.html

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-                  <h1>Convert</h1>
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-                <h3 id="yaml-to-json">Yaml to Json<a class="headerlink" href="#yaml-to-json" title="Permanent link">&para;</a></h3>
-<p>To convert output to json, use the --tojson (or -j) flag. This can be used with any command.</p>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml r -j sample.yaml b.c
-</code></pre>
-
-<p>will output</p>
-<pre><code class="json">{&quot;b&quot;:{&quot;c&quot;:2}}
-</code></pre>
-
-<h3 id="json-to-yaml">Json to Yaml<a class="headerlink" href="#json-to-yaml" title="Permanent link">&para;</a></h3>
-<p>To read in json, just pass in a json file instead of yaml, it will just work :)</p>
-<p>e.g given a json file</p>
-<pre><code class="json">{&quot;a&quot;:&quot;Easy! as one two three&quot;,&quot;b&quot;:{&quot;c&quot;:2,&quot;d&quot;:[3,4]}}
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml r sample.json
-</code></pre>
-
-<p>will output</p>
-<pre><code class="yaml">a: Easy! as one two three
-b:
-  c: 2
-  d:
-  - 3
-  - 4
-</code></pre>
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docs/create/index.html

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-                  <h1>Create</h1>
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-                <p>Yaml files can be created using the 'new' command. This works in the same way as the write command, but you don't pass in an existing Yaml file.</p>
-<pre><code>yaml n &lt;path&gt; &lt;new value&gt;
-</code></pre>
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-<pre><code class="bash">yaml n b.c cat
-</code></pre>
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-<p>will output:</p>
-<pre><code class="yaml">b:
-  c: cat
-</code></pre>
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-<h3 id="creating-using-a-create-script">Creating using a create script<a class="headerlink" href="#creating-using-a-create-script" title="Permanent link">&para;</a></h3>
-<p>Create scripts follow the same format as the update scripts.</p>
-<p>Given a script create_instructions.yaml of:</p>
-<pre><code class="yaml">b.c: 3
-b.e[0].name: Howdy Partner
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml n -s create_instructions.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b:
-  c: 3
-  e:
-    - name: Howdy Partner
-</code></pre>
-
-<p>You can also pipe the instructions in:</p>
-<pre><code class="bash">cat create_instructions.yaml | yaml n -s -
-</code></pre>
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-<p>When specifying a key that has a dot use key lookup indicator.</p>
-<pre><code class="yaml">b:
-  foo.bar: 7
-</code></pre>
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-<pre><code class="bash">yaml r sample.yaml b[foo.bar]
-</code></pre>
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-                  <h1>Merge</h1>
-                
-                <p>Yaml files can be merged using the 'merge' command. Each additional file merged with the first file will
-set values for any key not existing already or where the key has no value.</p>
-<pre><code>yaml m &lt;yaml_file|json_file&gt; &lt;path&gt;...
-</code></pre>
-
-<p>This command can take a json file as input too, and will output yaml unless specified to export as json (-j)</p>
-<h3 id="to-stdout">To Stdout<a class="headerlink" href="#to-stdout" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-</code></pre>
-
-<p>and data2.yaml file of:</p>
-<pre><code class="yaml">a: other
-c:
-  test: 1
-</code></pre>
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-<p>then</p>
-<pre><code class="bash">yaml m data1.yaml data2.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-c:
-  test: 1
-</code></pre>
-
-<h3 id="updating-files-in-place">Updating files in-place<a class="headerlink" href="#updating-files-in-place" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-</code></pre>
-
-<p>and data2.yaml file of:</p>
-<pre><code class="yaml">a: other
-c:
-  test: 1
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml m -i data1.yaml data2.yaml
-</code></pre>
-
-<p>will update the data1.yaml file so that the value of 'c' is 'test: 1'.</p>
-<h3 id="overwrite-values">Overwrite values<a class="headerlink" href="#overwrite-values" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-</code></pre>
-
-<p>and data2.yaml file of:</p>
-<pre><code class="yaml">a: other
-c:
-  test: 1
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml m -x data1.yaml data2.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">a: other
-b: [1, 2]
-c:
-  test: 1
-</code></pre>
-
-<h3 id="overwrite-values-with-arrays">Overwrite values with arrays<a class="headerlink" href="#overwrite-values-with-arrays" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-</code></pre>
-
-<p>and data3.yaml file of:</p>
-<pre><code class="yaml">b: [2, 3, 4]
-c:
-  test: 2
-  other: true
-d: false
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml m -x data1.yaml data3.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">a: simple
-b: [2, 3, 4]
-c:
-  test: 2
-  other: true
-d: false
-</code></pre>
-
-<p>Notice that 'b' does not result in the merging of the values within an array. The underlying library does not
-currently handle merging values within an array.</p>
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docs/mkdocs/js/require.js

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docs/mkdocs/js/search-results-template.mustache

@@ -1,4 +0,0 @@
-<article>
-  <h3><a href="{{location}}">{{title}}</a></h3>
-  <p>{{summary}}</p>
-</article>

docs/mkdocs/js/search.js

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-require([
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-    base_url + '/mkdocs/js/lunr.min.js',
-    'text!search-results-template.mustache',
-    'text!../search_index.json',
-], function (Mustache, lunr, results_template, data) {
-   "use strict";
-
-    function getSearchTerm()
-    {
-        var sPageURL = window.location.search.substring(1);
-        var sURLVariables = sPageURL.split('&');
-        for (var i = 0; i < sURLVariables.length; i++)
-        {
-            var sParameterName = sURLVariables[i].split('=');
-            if (sParameterName[0] == 'q')
-            {
-                return decodeURIComponent(sParameterName[1].replace(/\+/g, '%20'));
-            }
-        }
-    }
-
-    var index = lunr(function () {
-        this.field('title', {boost: 10});
-        this.field('text');
-        this.ref('location');
-    });
-
-    data = JSON.parse(data);
-    var documents = {};
-
-    for (var i=0; i < data.docs.length; i++){
-        var doc = data.docs[i];
-        doc.location = base_url + doc.location;
-        index.add(doc);
-        documents[doc.location] = doc;
-    }
-
-    var search = function(){
-
-        var query = document.getElementById('mkdocs-search-query').value;
-        var search_results = document.getElementById("mkdocs-search-results");
-        while (search_results.firstChild) {
-            search_results.removeChild(search_results.firstChild);
-        }
-
-        if(query === ''){
-            return;
-        }
-
-        var results = index.search(query);
-
-        if (results.length > 0){
-            for (var i=0; i < results.length; i++){
-                var result = results[i];
-                doc = documents[result.ref];
-                doc.base_url = base_url;
-                doc.summary = doc.text.substring(0, 200);
-                var html = Mustache.to_html(results_template, doc);
-                search_results.insertAdjacentHTML('beforeend', html);
-            }
-        } else {
-            search_results.insertAdjacentHTML('beforeend', "<p>No results found</p>");
-        }
-
-        if(jQuery){
-            /*
-             * We currently only automatically hide bootstrap models. This
-             * requires jQuery to work.
-             */
-            jQuery('#mkdocs_search_modal a').click(function(){
-                jQuery('#mkdocs_search_modal').modal('hide');
-            });
-        }
-
-    };
-
-    var search_input = document.getElementById('mkdocs-search-query');
-
-    var term = getSearchTerm();
-    if (term){
-        search_input.value = term;
-        search();
-    }
-
-    search_input.addEventListener("keyup", search);
-
-});

docs/mkdocs/js/text.js

@@ -1,390 +0,0 @@
-/**
- * @license RequireJS text 2.0.12 Copyright (c) 2010-2014, The Dojo Foundation All Rights Reserved.
- * Available via the MIT or new BSD license.
- * see: http://github.com/requirejs/text for details
- */
-/*jslint regexp: true */
-/*global require, XMLHttpRequest, ActiveXObject,
-  define, window, process, Packages,
-  java, location, Components, FileUtils */
-
-define(['module'], function (module) {
-    'use strict';
-
-    var text, fs, Cc, Ci, xpcIsWindows,
-        progIds = ['Msxml2.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.4.0'],
-        xmlRegExp = /^\s*<\?xml(\s)+version=[\'\"](\d)*.(\d)*[\'\"](\s)*\?>/im,
-        bodyRegExp = /<body[^>]*>\s*([\s\S]+)\s*<\/body>/im,
-        hasLocation = typeof location !== 'undefined' && location.href,
-        defaultProtocol = hasLocation && location.protocol && location.protocol.replace(/\:/, ''),
-        defaultHostName = hasLocation && location.hostname,
-        defaultPort = hasLocation && (location.port || undefined),
-        buildMap = {},
-        masterConfig = (module.config && module.config()) || {};
-
-    text = {
-        version: '2.0.12',
-
-        strip: function (content) {
-            //Strips <?xml ...?> declarations so that external SVG and XML
-            //documents can be added to a document without worry. Also, if the string
-            //is an HTML document, only the part inside the body tag is returned.
-            if (content) {
-                content = content.replace(xmlRegExp, "");
-                var matches = content.match(bodyRegExp);
-                if (matches) {
-                    content = matches[1];
-                }
-            } else {
-                content = "";
-            }
-            return content;
-        },
-
-        jsEscape: function (content) {
-            return content.replace(/(['\\])/g, '\\$1')
-                .replace(/[\f]/g, "\\f")
-                .replace(/[\b]/g, "\\b")
-                .replace(/[\n]/g, "\\n")
-                .replace(/[\t]/g, "\\t")
-                .replace(/[\r]/g, "\\r")
-                .replace(/[\u2028]/g, "\\u2028")
-                .replace(/[\u2029]/g, "\\u2029");
-        },
-
-        createXhr: masterConfig.createXhr || function () {
-            //Would love to dump the ActiveX crap in here. Need IE 6 to die first.
-            var xhr, i, progId;
-            if (typeof XMLHttpRequest !== "undefined") {
-                return new XMLHttpRequest();
-            } else if (typeof ActiveXObject !== "undefined") {
-                for (i = 0; i < 3; i += 1) {
-                    progId = progIds[i];
-                    try {
-                        xhr = new ActiveXObject(progId);
-                    } catch (e) {}
-
-                    if (xhr) {
-                        progIds = [progId];  // so faster next time
-                        break;
-                    }
-                }
-            }
-
-            return xhr;
-        },
-
-        /**
-         * Parses a resource name into its component parts. Resource names
-         * look like: module/name.ext!strip, where the !strip part is
-         * optional.
-         * @param {String} name the resource name
-         * @returns {Object} with properties "moduleName", "ext" and "strip"
-         * where strip is a boolean.
-         */
-        parseName: function (name) {
-            var modName, ext, temp,
-                strip = false,
-                index = name.indexOf("."),
-                isRelative = name.indexOf('./') === 0 ||
-                             name.indexOf('../') === 0;
-
-            if (index !== -1 && (!isRelative || index > 1)) {
-                modName = name.substring(0, index);
-                ext = name.substring(index + 1, name.length);
-            } else {
-                modName = name;
-            }
-
-            temp = ext || modName;
-            index = temp.indexOf("!");
-            if (index !== -1) {
-                //Pull off the strip arg.
-                strip = temp.substring(index + 1) === "strip";
-                temp = temp.substring(0, index);
-                if (ext) {
-                    ext = temp;
-                } else {
-                    modName = temp;
-                }
-            }
-
-            return {
-                moduleName: modName,
-                ext: ext,
-                strip: strip
-            };
-        },
-
-        xdRegExp: /^((\w+)\:)?\/\/([^\/\\]+)/,
-
-        /**
-         * Is an URL on another domain. Only works for browser use, returns
-         * false in non-browser environments. Only used to know if an
-         * optimized .js version of a text resource should be loaded
-         * instead.
-         * @param {String} url
-         * @returns Boolean
-         */
-        useXhr: function (url, protocol, hostname, port) {
-            var uProtocol, uHostName, uPort,
-                match = text.xdRegExp.exec(url);
-            if (!match) {
-                return true;
-            }
-            uProtocol = match[2];
-            uHostName = match[3];
-
-            uHostName = uHostName.split(':');
-            uPort = uHostName[1];
-            uHostName = uHostName[0];
-
-            return (!uProtocol || uProtocol === protocol) &&
-                   (!uHostName || uHostName.toLowerCase() === hostname.toLowerCase()) &&
-                   ((!uPort && !uHostName) || uPort === port);
-        },
-
-        finishLoad: function (name, strip, content, onLoad) {
-            content = strip ? text.strip(content) : content;
-            if (masterConfig.isBuild) {
-                buildMap[name] = content;
-            }
-            onLoad(content);
-        },
-
-        load: function (name, req, onLoad, config) {
-            //Name has format: some.module.filext!strip
-            //The strip part is optional.
-            //if strip is present, then that means only get the string contents
-            //inside a body tag in an HTML string. For XML/SVG content it means
-            //removing the <?xml ...?> declarations so the content can be inserted
-            //into the current doc without problems.
-
-            // Do not bother with the work if a build and text will
-            // not be inlined.
-            if (config && config.isBuild && !config.inlineText) {
-                onLoad();
-                return;
-            }
-
-            masterConfig.isBuild = config && config.isBuild;
-
-            var parsed = text.parseName(name),
-                nonStripName = parsed.moduleName +
-                    (parsed.ext ? '.' + parsed.ext : ''),
-                url = req.toUrl(nonStripName),
-                useXhr = (masterConfig.useXhr) ||
-                         text.useXhr;
-
-            // Do not load if it is an empty: url
-            if (url.indexOf('empty:') === 0) {
-                onLoad();
-                return;
-            }
-
-            //Load the text. Use XHR if possible and in a browser.
-            if (!hasLocation || useXhr(url, defaultProtocol, defaultHostName, defaultPort)) {
-                text.get(url, function (content) {
-                    text.finishLoad(name, parsed.strip, content, onLoad);
-                }, function (err) {
-                    if (onLoad.error) {
-                        onLoad.error(err);
-                    }
-                });
-            } else {
-                //Need to fetch the resource across domains. Assume
-                //the resource has been optimized into a JS module. Fetch
-                //by the module name + extension, but do not include the
-                //!strip part to avoid file system issues.
-                req([nonStripName], function (content) {
-                    text.finishLoad(parsed.moduleName + '.' + parsed.ext,
-                                    parsed.strip, content, onLoad);
-                });
-            }
-        },
-
-        write: function (pluginName, moduleName, write, config) {
-            if (buildMap.hasOwnProperty(moduleName)) {
-                var content = text.jsEscape(buildMap[moduleName]);
-                write.asModule(pluginName + "!" + moduleName,
-                               "define(function () { return '" +
-                                   content +
-                               "';});\n");
-            }
-        },
-
-        writeFile: function (pluginName, moduleName, req, write, config) {
-            var parsed = text.parseName(moduleName),
-                extPart = parsed.ext ? '.' + parsed.ext : '',
-                nonStripName = parsed.moduleName + extPart,
-                //Use a '.js' file name so that it indicates it is a
-                //script that can be loaded across domains.
-                fileName = req.toUrl(parsed.moduleName + extPart) + '.js';
-
-            //Leverage own load() method to load plugin value, but only
-            //write out values that do not have the strip argument,
-            //to avoid any potential issues with ! in file names.
-            text.load(nonStripName, req, function (value) {
-                //Use own write() method to construct full module value.
-                //But need to create shell that translates writeFile's
-                //write() to the right interface.
-                var textWrite = function (contents) {
-                    return write(fileName, contents);
-                };
-                textWrite.asModule = function (moduleName, contents) {
-                    return write.asModule(moduleName, fileName, contents);
-                };
-
-                text.write(pluginName, nonStripName, textWrite, config);
-            }, config);
-        }
-    };
-
-    if (masterConfig.env === 'node' || (!masterConfig.env &&
-            typeof process !== "undefined" &&
-            process.versions &&
-            !!process.versions.node &&
-            !process.versions['node-webkit'])) {
-        //Using special require.nodeRequire, something added by r.js.
-        fs = require.nodeRequire('fs');
-
-        text.get = function (url, callback, errback) {
-            try {
-                var file = fs.readFileSync(url, 'utf8');
-                //Remove BOM (Byte Mark Order) from utf8 files if it is there.
-                if (file.indexOf('\uFEFF') === 0) {
-                    file = file.substring(1);
-                }
-                callback(file);
-            } catch (e) {
-                if (errback) {
-                    errback(e);
-                }
-            }
-        };
-    } else if (masterConfig.env === 'xhr' || (!masterConfig.env &&
-            text.createXhr())) {
-        text.get = function (url, callback, errback, headers) {
-            var xhr = text.createXhr(), header;
-            xhr.open('GET', url, true);
-
-            //Allow plugins direct access to xhr headers
-            if (headers) {
-                for (header in headers) {
-                    if (headers.hasOwnProperty(header)) {
-                        xhr.setRequestHeader(header.toLowerCase(), headers[header]);
-                    }
-                }
-            }
-
-            //Allow overrides specified in config
-            if (masterConfig.onXhr) {
-                masterConfig.onXhr(xhr, url);
-            }
-
-            xhr.onreadystatechange = function (evt) {
-                var status, err;
-                //Do not explicitly handle errors, those should be
-                //visible via console output in the browser.
-                if (xhr.readyState === 4) {
-                    status = xhr.status || 0;
-                    if (status > 399 && status < 600) {
-                        //An http 4xx or 5xx error. Signal an error.
-                        err = new Error(url + ' HTTP status: ' + status);
-                        err.xhr = xhr;
-                        if (errback) {
-                            errback(err);
-                        }
-                    } else {
-                        callback(xhr.responseText);
-                    }
-
-                    if (masterConfig.onXhrComplete) {
-                        masterConfig.onXhrComplete(xhr, url);
-                    }
-                }
-            };
-            xhr.send(null);
-        };
-    } else if (masterConfig.env === 'rhino' || (!masterConfig.env &&
-            typeof Packages !== 'undefined' && typeof java !== 'undefined')) {
-        //Why Java, why is this so awkward?
-        text.get = function (url, callback) {
-            var stringBuffer, line,
-                encoding = "utf-8",
-                file = new java.io.File(url),
-                lineSeparator = java.lang.System.getProperty("line.separator"),
-                input = new java.io.BufferedReader(new java.io.InputStreamReader(new java.io.FileInputStream(file), encoding)),
-                content = '';
-            try {
-                stringBuffer = new java.lang.StringBuffer();
-                line = input.readLine();
-
-                // Byte Order Mark (BOM) - The Unicode Standard, version 3.0, page 324
-                // http://www.unicode.org/faq/utf_bom.html
-
-                // Note that when we use utf-8, the BOM should appear as "EF BB BF", but it doesn't due to this bug in the JDK:
-                // http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4508058
-                if (line && line.length() && line.charAt(0) === 0xfeff) {
-                    // Eat the BOM, since we've already found the encoding on this file,
-                    // and we plan to concatenating this buffer with others; the BOM should
-                    // only appear at the top of a file.
-                    line = line.substring(1);
-                }
-
-                if (line !== null) {
-                    stringBuffer.append(line);
-                }
-
-                while ((line = input.readLine()) !== null) {
-                    stringBuffer.append(lineSeparator);
-                    stringBuffer.append(line);
-                }
-                //Make sure we return a JavaScript string and not a Java string.
-                content = String(stringBuffer.toString()); //String
-            } finally {
-                input.close();
-            }
-            callback(content);
-        };
-    } else if (masterConfig.env === 'xpconnect' || (!masterConfig.env &&
-            typeof Components !== 'undefined' && Components.classes &&
-            Components.interfaces)) {
-        //Avert your gaze!
-        Cc = Components.classes;
-        Ci = Components.interfaces;
-        Components.utils['import']('resource://gre/modules/FileUtils.jsm');
-        xpcIsWindows = ('@mozilla.org/windows-registry-key;1' in Cc);
-
-        text.get = function (url, callback) {
-            var inStream, convertStream, fileObj,
-                readData = {};
-
-            if (xpcIsWindows) {
-                url = url.replace(/\//g, '\\');
-            }
-
-            fileObj = new FileUtils.File(url);
-
-            //XPCOM, you so crazy
-            try {
-                inStream = Cc['@mozilla.org/network/file-input-stream;1']
-                           .createInstance(Ci.nsIFileInputStream);
-                inStream.init(fileObj, 1, 0, false);
-
-                convertStream = Cc['@mozilla.org/intl/converter-input-stream;1']
-                                .createInstance(Ci.nsIConverterInputStream);
-                convertStream.init(inStream, "utf-8", inStream.available(),
-                Ci.nsIConverterInputStream.DEFAULT_REPLACEMENT_CHARACTER);
-
-                convertStream.readString(inStream.available(), readData);
-                convertStream.close();
-                inStream.close();
-                callback(readData.value);
-            } catch (e) {
-                throw new Error((fileObj && fileObj.path || '') + ': ' + e);
-            }
-        };
-    }
-    return text;
-});

docs/mkdocs/search_index.json

@@ -1,169 +0,0 @@
-{
-    "docs": [
-        {
-            "location": "/", 
-            "text": "yaml\n\n\nyaml is a lightweight and portable command-line YAML processor\n\n\nThe aim of the project is to be the \njq\n or sed of yaml files.\n\n\ndownload latest binary\n\n\nget the source\n\n\ngo get github.com/mikefarah/yaml\n\n\n\n\n.zip\n or \ntar.gz\n\n\nView on GitHub", 
-            "title": "Install"
-        }, 
-        {
-            "location": "/#yaml", 
-            "text": "yaml is a lightweight and portable command-line YAML processor  The aim of the project is to be the  jq  or sed of yaml files.", 
-            "title": "yaml"
-        }, 
-        {
-            "location": "/#download-latest-binary", 
-            "text": "", 
-            "title": "download latest binary"
-        }, 
-        {
-            "location": "/#get-the-source", 
-            "text": "go get github.com/mikefarah/yaml  .zip  or  tar.gz  View on GitHub", 
-            "title": "get the source"
-        }, 
-        {
-            "location": "/read/", 
-            "text": "yaml r \nyaml_file|json_file\n \npath\n\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nBasic\n\n\nGiven a sample.yaml file of:\n\n\nb:\n  c: 2\n\n\n\n\nthen\n\n\nyaml r sample.yaml b.c\n\n\n\n\nwill output the value of '2'.\n\n\nFrom Stdin\n\n\nGiven a sample.yaml file of:\n\n\ncat sample.yaml | yaml r - b.c\n\n\n\n\nwill output the value of '2'.\n\n\nSplat\n\n\nGiven a sample.yaml file of:\n\n\n---\nbob:\n  item1:\n    cats: bananas\n  item2:\n    cats: apples\n\n\n\n\nthen\n\n\nyaml r sample.yaml bob.*.cats\n\n\n\n\nwill output\n\n\n- bananas\n- apples\n\n\n\n\nHandling '.' in the yaml key\n\n\nGiven a sample.yaml file of:\n\n\nb.x:\n  c: 2\n\n\n\n\nthen\n\n\nyaml r sample.yaml \\\nb.x\\\n.c\n\n\n\n\nwill output the value of '2'.\n\n\nArrays\n\n\nYou can give an index to access a specific element:\ne.g.: given a sample file of\n\n\nb:\n  e:\n    - name: fred\n      value: 3\n    - name: sam\n      value: 4\n\n\n\n\nthen\n\n\nyaml r sample.yaml b.e[1].name\n\n\n\n\nwill output 'sam'\n\n\nArray Splat\n\n\ne.g.: given a sample file of\n\n\nb:\n  e:\n    - name: fred\n      value: 3\n    - name: sam\n      value: 4\n\n\n\n\nthen\n\n\nyaml r sample.yaml b.e[*].name\n\n\n\n\nwill output:\n\n\n- fred\n- sam\n\n\n\n\nKeys with dots\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n  foo.bar: 7\n\n\n\n\nyaml r sample.yaml b[foo.bar]\n\n\n\n\nyaml w sample.yaml b[foo.bar] 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.", 
-            "title": "Read"
-        }, 
-        {
-            "location": "/read/#basic", 
-            "text": "Given a sample.yaml file of:  b:\n  c: 2  then  yaml r sample.yaml b.c  will output the value of '2'.", 
-            "title": "Basic"
-        }, 
-        {
-            "location": "/read/#from-stdin", 
-            "text": "Given a sample.yaml file of:  cat sample.yaml | yaml r - b.c  will output the value of '2'.", 
-            "title": "From Stdin"
-        }, 
-        {
-            "location": "/read/#splat", 
-            "text": "Given a sample.yaml file of:  ---\nbob:\n  item1:\n    cats: bananas\n  item2:\n    cats: apples  then  yaml r sample.yaml bob.*.cats  will output  - bananas\n- apples", 
-            "title": "Splat"
-        }, 
-        {
-            "location": "/read/#handling-in-the-yaml-key", 
-            "text": "Given a sample.yaml file of:  b.x:\n  c: 2  then  yaml r sample.yaml \\ b.x\\ .c  will output the value of '2'.", 
-            "title": "Handling '.' in the yaml key"
-        }, 
-        {
-            "location": "/read/#arrays", 
-            "text": "You can give an index to access a specific element:\ne.g.: given a sample file of  b:\n  e:\n    - name: fred\n      value: 3\n    - name: sam\n      value: 4  then  yaml r sample.yaml b.e[1].name  will output 'sam'", 
-            "title": "Arrays"
-        }, 
-        {
-            "location": "/read/#array-splat", 
-            "text": "e.g.: given a sample file of  b:\n  e:\n    - name: fred\n      value: 3\n    - name: sam\n      value: 4  then  yaml r sample.yaml b.e[*].name  will output:  - fred\n- sam", 
-            "title": "Array Splat"
-        }, 
-        {
-            "location": "/read/#keys-with-dots", 
-            "text": "When specifying a key that has a dot use key lookup indicator.  b:\n  foo.bar: 7  yaml r sample.yaml b[foo.bar]  yaml w sample.yaml b[foo.bar] 9  Any valid yaml key can be specified as part of a key lookup.", 
-            "title": "Keys with dots"
-        }, 
-        {
-            "location": "/write/", 
-            "text": "yaml w \nyaml_file|json_file\n \npath\n \nnew value\n\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nTo Stdout\n\n\nGiven a sample.yaml file of:\n\n\nb:\n  c: 2\n\n\n\n\nthen\n\n\nyaml w sample.yaml b.c cat\n\n\n\n\nwill output:\n\n\nb:\n  c: cat\n\n\n\n\nFrom STDIN\n\n\ncat sample.yaml | yaml w - b.c blah\n\n\n\n\nAdding new fields\n\n\nAny missing fields in the path will be created on the fly.\n\n\nGiven a sample.yaml file of:\n\n\nb:\n  c: 2\n\n\n\n\nthen\n\n\nyaml w sample.yaml b.d[0] \nnew thing\n\n\n\n\n\nwill output:\n\n\nb:\n  c: cat\n  d:\n    - new thing\n\n\n\n\nAppending value to an array field\n\n\nGiven a sample.yaml file of:\n\n\nb:\n  c: 2\n  d:\n    - new thing\n    - foo thing\n\n\n\n\nthen\n\n\nyaml w sample.yaml b.d[+] \nbar thing\n\n\n\n\n\nwill output:\n\n\nb:\n  c: cat\n  d:\n    - new thing\n    - foo thing\n    - bar thing\n\n\n\n\nUpdating files in-place\n\n\nGiven a sample.yaml file of:\n\n\nb:\n  c: 2\n\n\n\n\nthen\n\n\nyaml w -i sample.yaml b.c cat\n\n\n\n\nwill update the sample.yaml file so that the value of 'c' is cat.\n\n\nUpdating multiple values with a script\n\n\nGiven a sample.yaml file of:\n\n\nb:\n  c: 2\n  e:\n    - name: Billy Bob\n\n\n\n\nand a script update_instructions.yaml of:\n\n\nb.c: 3\nb.e[0].name: Howdy Partner\n\n\n\n\nthen\n\n\nyaml w -s update_instructions.yaml sample.yaml\n\n\n\n\nwill output:\n\n\nb:\n  c: 3\n  e:\n    - name: Howdy Partner\n\n\n\n\nAnd, of course, you can pipe the instructions in using '-':\n\n\ncat update_instructions.yaml | yaml w -s - sample.yaml\n\n\n\n\nValues starting with a hyphen (or dash)\n\n\nThe flag terminator needs to be used to stop the app from attempting to parse the subsequent arguments as flags:\n\n\nyaml w -- my.path -3\n\n\n\n\nwill output\n\n\nmy:\n  path: -3\n\n\n\n\nKeys with dots\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n  foo.bar: 7\n\n\n\n\nyaml r sample.yaml b[foo.bar]\n\n\n\n\nyaml w sample.yaml b[foo.bar] 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.", 
-            "title": "Write/Update"
-        }, 
-        {
-            "location": "/write/#to-stdout", 
-            "text": "Given a sample.yaml file of:  b:\n  c: 2  then  yaml w sample.yaml b.c cat  will output:  b:\n  c: cat", 
-            "title": "To Stdout"
-        }, 
-        {
-            "location": "/write/#from-stdin", 
-            "text": "cat sample.yaml | yaml w - b.c blah", 
-            "title": "From STDIN"
-        }, 
-        {
-            "location": "/write/#adding-new-fields", 
-            "text": "Any missing fields in the path will be created on the fly.  Given a sample.yaml file of:  b:\n  c: 2  then  yaml w sample.yaml b.d[0]  new thing   will output:  b:\n  c: cat\n  d:\n    - new thing", 
-            "title": "Adding new fields"
-        }, 
-        {
-            "location": "/write/#appending-value-to-an-array-field", 
-            "text": "Given a sample.yaml file of:  b:\n  c: 2\n  d:\n    - new thing\n    - foo thing  then  yaml w sample.yaml b.d[+]  bar thing   will output:  b:\n  c: cat\n  d:\n    - new thing\n    - foo thing\n    - bar thing", 
-            "title": "Appending value to an array field"
-        }, 
-        {
-            "location": "/write/#updating-files-in-place", 
-            "text": "Given a sample.yaml file of:  b:\n  c: 2  then  yaml w -i sample.yaml b.c cat  will update the sample.yaml file so that the value of 'c' is cat.", 
-            "title": "Updating files in-place"
-        }, 
-        {
-            "location": "/write/#updating-multiple-values-with-a-script", 
-            "text": "Given a sample.yaml file of:  b:\n  c: 2\n  e:\n    - name: Billy Bob  and a script update_instructions.yaml of:  b.c: 3\nb.e[0].name: Howdy Partner  then  yaml w -s update_instructions.yaml sample.yaml  will output:  b:\n  c: 3\n  e:\n    - name: Howdy Partner  And, of course, you can pipe the instructions in using '-':  cat update_instructions.yaml | yaml w -s - sample.yaml", 
-            "title": "Updating multiple values with a script"
-        }, 
-        {
-            "location": "/write/#values-starting-with-a-hyphen-or-dash", 
-            "text": "The flag terminator needs to be used to stop the app from attempting to parse the subsequent arguments as flags:  yaml w -- my.path -3  will output  my:\n  path: -3", 
-            "title": "Values starting with a hyphen (or dash)"
-        }, 
-        {
-            "location": "/write/#keys-with-dots", 
-            "text": "When specifying a key that has a dot use key lookup indicator.  b:\n  foo.bar: 7  yaml r sample.yaml b[foo.bar]  yaml w sample.yaml b[foo.bar] 9  Any valid yaml key can be specified as part of a key lookup.", 
-            "title": "Keys with dots"
-        }, 
-        {
-            "location": "/create/", 
-            "text": "Yaml files can be created using the 'new' command. This works in the same way as the write command, but you don't pass in an existing Yaml file.\n\n\nyaml n \npath\n \nnew value\n\n\n\n\n\nCreating a simple yaml file\n\n\nyaml n b.c cat\n\n\n\n\nwill output:\n\n\nb:\n  c: cat\n\n\n\n\nCreating using a create script\n\n\nCreate scripts follow the same format as the update scripts.\n\n\nGiven a script create_instructions.yaml of:\n\n\nb.c: 3\nb.e[0].name: Howdy Partner\n\n\n\n\nthen\n\n\nyaml n -s create_instructions.yaml\n\n\n\n\nwill output:\n\n\nb:\n  c: 3\n  e:\n    - name: Howdy Partner\n\n\n\n\nYou can also pipe the instructions in:\n\n\ncat create_instructions.yaml | yaml n -s -\n\n\n\n\nKeys with dots\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n  foo.bar: 7\n\n\n\n\nyaml r sample.yaml b[foo.bar]\n\n\n\n\nyaml w sample.yaml b[foo.bar] 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.", 
-            "title": "Create"
-        }, 
-        {
-            "location": "/create/#creating-a-simple-yaml-file", 
-            "text": "yaml n b.c cat  will output:  b:\n  c: cat", 
-            "title": "Creating a simple yaml file"
-        }, 
-        {
-            "location": "/create/#creating-using-a-create-script", 
-            "text": "Create scripts follow the same format as the update scripts.  Given a script create_instructions.yaml of:  b.c: 3\nb.e[0].name: Howdy Partner  then  yaml n -s create_instructions.yaml  will output:  b:\n  c: 3\n  e:\n    - name: Howdy Partner  You can also pipe the instructions in:  cat create_instructions.yaml | yaml n -s -", 
-            "title": "Creating using a create script"
-        }, 
-        {
-            "location": "/create/#keys-with-dots", 
-            "text": "When specifying a key that has a dot use key lookup indicator.  b:\n  foo.bar: 7  yaml r sample.yaml b[foo.bar]  yaml w sample.yaml b[foo.bar] 9  Any valid yaml key can be specified as part of a key lookup.", 
-            "title": "Keys with dots"
-        }, 
-        {
-            "location": "/convert/", 
-            "text": "Yaml to Json\n\n\nTo convert output to json, use the --tojson (or -j) flag. This can be used with any command.\n\n\nGiven a sample.yaml file of:\n\n\nb:\n  c: 2\n\n\n\n\nthen\n\n\nyaml r -j sample.yaml b.c\n\n\n\n\nwill output\n\n\n{\nb\n:{\nc\n:2}}\n\n\n\n\nJson to Yaml\n\n\nTo read in json, just pass in a json file instead of yaml, it will just work :)\n\n\ne.g given a json file\n\n\n{\na\n:\nEasy! as one two three\n,\nb\n:{\nc\n:2,\nd\n:[3,4]}}\n\n\n\n\nthen\n\n\nyaml r sample.json\n\n\n\n\nwill output\n\n\na: Easy! as one two three\nb:\n  c: 2\n  d:\n  - 3\n  - 4", 
-            "title": "Convert"
-        }, 
-        {
-            "location": "/convert/#yaml-to-json", 
-            "text": "To convert output to json, use the --tojson (or -j) flag. This can be used with any command.  Given a sample.yaml file of:  b:\n  c: 2  then  yaml r -j sample.yaml b.c  will output  { b :{ c :2}}", 
-            "title": "Yaml to Json"
-        }, 
-        {
-            "location": "/convert/#json-to-yaml", 
-            "text": "To read in json, just pass in a json file instead of yaml, it will just work :)  e.g given a json file  { a : Easy! as one two three , b :{ c :2, d :[3,4]}}  then  yaml r sample.json  will output  a: Easy! as one two three\nb:\n  c: 2\n  d:\n  - 3\n  - 4", 
-            "title": "Json to Yaml"
-        }, 
-        {
-            "location": "/merge/", 
-            "text": "Yaml files can be merged using the 'merge' command. Each additional file merged with the first file will\nset values for any key not existing already or where the key has no value.\n\n\nyaml m \nyaml_file|json_file\n \npath\n...\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nTo Stdout\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data2.yaml file of:\n\n\na: other\nc:\n  test: 1\n\n\n\n\nthen\n\n\nyaml m data1.yaml data2.yaml\n\n\n\n\nwill output:\n\n\na: simple\nb: [1, 2]\nc:\n  test: 1\n\n\n\n\nUpdating files in-place\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data2.yaml file of:\n\n\na: other\nc:\n  test: 1\n\n\n\n\nthen\n\n\nyaml m -i data1.yaml data2.yaml\n\n\n\n\nwill update the data1.yaml file so that the value of 'c' is 'test: 1'.\n\n\nOverwrite values\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data2.yaml file of:\n\n\na: other\nc:\n  test: 1\n\n\n\n\nthen\n\n\nyaml m -x data1.yaml data2.yaml\n\n\n\n\nwill output:\n\n\na: other\nb: [1, 2]\nc:\n  test: 1\n\n\n\n\nOverwrite values with arrays\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data3.yaml file of:\n\n\nb: [2, 3, 4]\nc:\n  test: 2\n  other: true\nd: false\n\n\n\n\nthen\n\n\nyaml m -x data1.yaml data3.yaml\n\n\n\n\nwill output:\n\n\na: simple\nb: [2, 3, 4]\nc:\n  test: 2\n  other: true\nd: false\n\n\n\n\nNotice that 'b' does not result in the merging of the values within an array. The underlying library does not\ncurrently handle merging values within an array.", 
-            "title": "Merge"
-        }, 
-        {
-            "location": "/merge/#to-stdout", 
-            "text": "Given a data1.yaml file of:  a: simple\nb: [1, 2]  and data2.yaml file of:  a: other\nc:\n  test: 1  then  yaml m data1.yaml data2.yaml  will output:  a: simple\nb: [1, 2]\nc:\n  test: 1", 
-            "title": "To Stdout"
-        }, 
-        {
-            "location": "/merge/#updating-files-in-place", 
-            "text": "Given a data1.yaml file of:  a: simple\nb: [1, 2]  and data2.yaml file of:  a: other\nc:\n  test: 1  then  yaml m -i data1.yaml data2.yaml  will update the data1.yaml file so that the value of 'c' is 'test: 1'.", 
-            "title": "Updating files in-place"
-        }, 
-        {
-            "location": "/merge/#overwrite-values", 
-            "text": "Given a data1.yaml file of:  a: simple\nb: [1, 2]  and data2.yaml file of:  a: other\nc:\n  test: 1  then  yaml m -x data1.yaml data2.yaml  will output:  a: other\nb: [1, 2]\nc:\n  test: 1", 
-            "title": "Overwrite values"
-        }, 
-        {
-            "location": "/merge/#overwrite-values-with-arrays", 
-            "text": "Given a data1.yaml file of:  a: simple\nb: [1, 2]  and data3.yaml file of:  b: [2, 3, 4]\nc:\n  test: 2\n  other: true\nd: false  then  yaml m -x data1.yaml data3.yaml  will output:  a: simple\nb: [2, 3, 4]\nc:\n  test: 2\n  other: true\nd: false  Notice that 'b' does not result in the merging of the values within an array. The underlying library does not\ncurrently handle merging values within an array.", 
-            "title": "Overwrite values with arrays"
-        }
-    ]
-}

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-      
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-  </a>
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-    From Stdin
-  </a>
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-    Splat
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-  </a>
-  
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-    Arrays
-  </a>
-  
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-    Array Splat
-  </a>
-  
-</li>
-      
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-  <a href="#keys-with-dots" title="Keys with dots" class="md-nav__link">
-    Keys with dots
-  </a>
-  
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-      
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-  
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-                </div>
-              </div>
-            
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-          <div class="md-content">
-            <article class="md-content__inner md-typeset">
-              
-                
-                
-                  <h1>Read</h1>
-                
-                <pre><code>yaml r &lt;yaml_file|json_file&gt; &lt;path&gt;
-</code></pre>
-
-<p>This command can take a json file as input too, and will output yaml unless specified to export as json (-j)</p>
-<h3 id="basic">Basic<a class="headerlink" href="#basic" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml r sample.yaml b.c
-</code></pre>
-
-<p>will output the value of '2'.</p>
-<h3 id="from-stdin">From Stdin<a class="headerlink" href="#from-stdin" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="bash">cat sample.yaml | yaml r - b.c
-</code></pre>
-
-<p>will output the value of '2'.</p>
-<h3 id="splat">Splat<a class="headerlink" href="#splat" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">---
-bob:
-  item1:
-    cats: bananas
-  item2:
-    cats: apples
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml r sample.yaml bob.*.cats
-</code></pre>
-
-<p>will output</p>
-<pre><code class="yaml">- bananas
-- apples
-</code></pre>
-
-<h3 id="handling-in-the-yaml-key">Handling '.' in the yaml key<a class="headerlink" href="#handling-in-the-yaml-key" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b.x:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml r sample.yaml \&quot;b.x\&quot;.c
-</code></pre>
-
-<p>will output the value of '2'.</p>
-<h3 id="arrays">Arrays<a class="headerlink" href="#arrays" title="Permanent link">&para;</a></h3>
-<p>You can give an index to access a specific element:
-e.g.: given a sample file of</p>
-<pre><code class="yaml">b:
-  e:
-    - name: fred
-      value: 3
-    - name: sam
-      value: 4
-</code></pre>
-
-<p>then</p>
-<pre><code>yaml r sample.yaml b.e[1].name
-</code></pre>
-
-<p>will output 'sam'</p>
-<h3 id="array-splat">Array Splat<a class="headerlink" href="#array-splat" title="Permanent link">&para;</a></h3>
-<p>e.g.: given a sample file of</p>
-<pre><code class="yaml">b:
-  e:
-    - name: fred
-      value: 3
-    - name: sam
-      value: 4
-</code></pre>
-
-<p>then</p>
-<pre><code>yaml r sample.yaml b.e[*].name
-</code></pre>
-
-<p>will output:</p>
-<pre><code>- fred
-- sam
-</code></pre>
-
-<h3 id="keys-with-dots">Keys with dots<a class="headerlink" href="#keys-with-dots" title="Permanent link">&para;</a></h3>
-<p>When specifying a key that has a dot use key lookup indicator.</p>
-<pre><code class="yaml">b:
-  foo.bar: 7
-</code></pre>
-
-<pre><code class="bash">yaml r sample.yaml b[foo.bar]
-</code></pre>
-
-<pre><code class="bash">yaml w sample.yaml b[foo.bar] 9
-</code></pre>
-
-<p>Any valid yaml key can be specified as part of a key lookup.</p>
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-                  <h1>Write/Update</h1>
-                
-                <pre><code>yaml w &lt;yaml_file|json_file&gt; &lt;path&gt; &lt;new value&gt;
-</code></pre>
-
-<p>This command can take a json file as input too, and will output yaml unless specified to export as json (-j)</p>
-<h3 id="to-stdout">To Stdout<a class="headerlink" href="#to-stdout" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml w sample.yaml b.c cat
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b:
-  c: cat
-</code></pre>
-
-<h3 id="from-stdin">From STDIN<a class="headerlink" href="#from-stdin" title="Permanent link">&para;</a></h3>
-<pre><code class="bash">cat sample.yaml | yaml w - b.c blah
-</code></pre>
-
-<h3 id="adding-new-fields">Adding new fields<a class="headerlink" href="#adding-new-fields" title="Permanent link">&para;</a></h3>
-<p>Any missing fields in the path will be created on the fly.</p>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml w sample.yaml b.d[0] &quot;new thing&quot;
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b:
-  c: cat
-  d:
-    - new thing
-</code></pre>
-
-<h3 id="appending-value-to-an-array-field">Appending value to an array field<a class="headerlink" href="#appending-value-to-an-array-field" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-  d:
-    - new thing
-    - foo thing
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml w sample.yaml b.d[+] &quot;bar thing&quot;
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b:
-  c: cat
-  d:
-    - new thing
-    - foo thing
-    - bar thing
-</code></pre>
-
-<h3 id="updating-files-in-place">Updating files in-place<a class="headerlink" href="#updating-files-in-place" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml w -i sample.yaml b.c cat
-</code></pre>
-
-<p>will update the sample.yaml file so that the value of 'c' is cat.</p>
-<h3 id="updating-multiple-values-with-a-script">Updating multiple values with a script<a class="headerlink" href="#updating-multiple-values-with-a-script" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-  e:
-    - name: Billy Bob
-</code></pre>
-
-<p>and a script update_instructions.yaml of:</p>
-<pre><code class="yaml">b.c: 3
-b.e[0].name: Howdy Partner
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yaml w -s update_instructions.yaml sample.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b:
-  c: 3
-  e:
-    - name: Howdy Partner
-</code></pre>
-
-<p>And, of course, you can pipe the instructions in using '-':</p>
-<pre><code class="bash">cat update_instructions.yaml | yaml w -s - sample.yaml
-</code></pre>
-
-<h3 id="values-starting-with-a-hyphen-or-dash">Values starting with a hyphen (or dash)<a class="headerlink" href="#values-starting-with-a-hyphen-or-dash" title="Permanent link">&para;</a></h3>
-<p>The flag terminator needs to be used to stop the app from attempting to parse the subsequent arguments as flags:</p>
-<pre><code>yaml w -- my.path -3
-</code></pre>
-
-<p>will output</p>
-<pre><code class="yaml">my:
-  path: -3
-</code></pre>
-
-<h3 id="keys-with-dots">Keys with dots<a class="headerlink" href="#keys-with-dots" title="Permanent link">&para;</a></h3>
-<p>When specifying a key that has a dot use key lookup indicator.</p>
-<pre><code class="yaml">b:
-  foo.bar: 7
-</code></pre>
-
-<pre><code class="bash">yaml r sample.yaml b[foo.bar]
-</code></pre>
-
-<pre><code class="bash">yaml w sample.yaml b[foo.bar] 9
-</code></pre>
-
-<p>Any valid yaml key can be specified as part of a key lookup.</p>
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examples/array.yaml

@@ -1,9 +1,2 @@
----
-- become: true
-  gather_facts: false
-  hosts: lalaland
-  name: "Apply smth"
-  roles:
-    - lala
-    - land
-  serial: 1
+- [cat, dog, frog, cow]
+- [apple, banana, grape, mango]

examples/bad.yaml

@@ -0,0 +1,8 @@
+b:
+  d: be gone
+  c: 2
+  e:
+    - name: Billy Bob # comment over here
+
+---
+[123123

examples/base64.txt

@@ -0,0 +1 @@
+bXkgc2VjcmV0IGNoaWxsaSByZWNpcGUgaXMuLi4u