chore: bump version to 6.5.0 in package.json and package-lock.json (#762)

* chore: bump version to 6.5.0 in package.json and package-lock.json

* chore: update README.md for improved clarity and structure

* License update

.eslintignore

@@ -0,0 +1,6 @@
+# Ignore list
+/*
+
+# Do not ignore these folders:
+!__tests__/
+!src/

.eslintrc.js

@@ -0,0 +1,51 @@
+// This is a reusable configuration file copied from https://github.com/actions/reusable-workflows/tree/main/reusable-configurations. Please don't make changes to this file as it's the subject of an automatic update.
+module.exports = {
+  extends: [
+    'eslint:recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:eslint-plugin-jest/recommended',
+    'eslint-config-prettier'
+  ],
+  parser: '@typescript-eslint/parser',
+  plugins: ['@typescript-eslint', 'eslint-plugin-node', 'eslint-plugin-jest'],
+  rules: {
+    '@typescript-eslint/no-require-imports': 'error',
+    '@typescript-eslint/no-non-null-assertion': 'off',
+    '@typescript-eslint/no-explicit-any': 'off',
+    '@typescript-eslint/no-empty-function': 'off',
+    '@typescript-eslint/ban-ts-comment': [
+      'error',
+      {
+        'ts-ignore': 'allow-with-description'
+      }
+    ],
+    'no-console': 'error',
+    'yoda': 'error',
+    'prefer-const': [
+      'error',
+      {
+        destructuring: 'all'
+      }
+    ],
+    'no-control-regex': 'off',
+    'no-constant-condition': ['error', {checkLoops: false}],
+    'node/no-extraneous-import': 'error'
+  },
+  overrides: [
+    {
+      files: ['**/*{test,spec}.ts'],
+      rules: {
+        '@typescript-eslint/no-unused-vars': 'off',
+        'jest/no-standalone-expect': 'off',
+        'jest/no-conditional-expect': 'off',
+        'no-console': 'off',
+
+      }
+    }
+  ],
+  env: {
+    node: true,
+    es6: true,
+    'jest/globals': true
+  }
+};

.gitattributes

@@ -1,2 +1,2 @@
-* text=auto
+* text=auto eol=lf
 .licenses/** -diff linguist-generated=true

.github/ISSUE_TEMPLATE/bug_report.md

@@ -7,7 +7,7 @@ assignees: ''
 
 ---
 
-<!--- Please direct any generic questions related to actions to our support community forum at https://github.community/c/code-to-cloud/github-actions/41 --->
+<!--- Please direct any generic questions related to actions to our support community forum at https://github.com/orgs/community/discussions/categories/actions --->
 <!--- Before opening up a new bug report, please make sure to check for similar existing issues -->
 
 **Description:**

.github/ISSUE_TEMPLATE/config.yml

@@ -1 +1 @@
-blank_issues_enabled: false
+blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature_request.md

@@ -5,7 +5,7 @@ title: ''
 labels: feature request, needs triage
 assignees: ''
 ---
-<!--- Please direct any generic questions related to actions to our support community forum at https://github.community/c/code-to-cloud/github-actions/41 --->
+<!--- Please direct any generic questions related to actions to our support community forum at https://github.com/orgs/community/discussions/categories/actions --->
 <!--- Before opening up a new feature request, please make sure to check for similar existing issues and pull requests -->
 
 **Description:**

.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://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  # Enable version updates for npm
+  - package-ecosystem: 'npm'
+    # Look for `package.json` and `lock` files in the `root` directory
+    directory: '/'
+    # Check the npm registry for updates every day (weekdays)
+    schedule:
+      interval: 'weekly'
+
+  # Enable version updates for GitHub Actions
+  - package-ecosystem: 'github-actions'
+    # Workflow files stored in the default location of `.github/workflows`
+    # You don't need to specify `/.github/workflows` for `directory`. You can use `directory: "/"`.
+    directory: '/'
+    schedule:
+      interval: 'weekly'

.github/workflows/basic-validation.yml

@@ -0,0 +1,18 @@
+name: Basic validation
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+
+jobs:
+  call-basic-validation:
+    name: Basic validation
+    uses: actions/reusable-workflows/.github/workflows/basic-validation.yml@main
+    with:
+      node-version: '24.x'

.github/workflows/check-dist.yml

@@ -1,8 +1,3 @@
-# `dist/index.js` is a special file in Actions.
-# When you reference an action with `uses:` in a workflow,
-# `index.js` is the code that will run.
-# For our project, we generate this file through a build process from other source files.
-# We need to make sure the checked-in `index.js` actually matches what we expect it to be.
 name: Check dist/
 
 on:
@@ -17,36 +12,8 @@ on:
   workflow_dispatch:
 
 jobs:
-  check-dist:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Set Node.js 16.x
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16.x
-          cache: npm
-
-      - name: Install dependencies
-        run: npm ci
-
-      - name: Rebuild the dist/ directory
-        run: npm run build
-
-      - name: Compare the expected and actual dist/ directories
-        run: |
-          if [ "$(git diff --ignore-space-at-eol dist/ | wc -l)" -gt "0" ]; then
-            echo "Detected uncommitted changes after build.  See status below:"
-            git diff
-            exit 1
-          fi
-        id: diff
-
-      # If index.js was different than expected, upload the expected version as an artifact
-      - uses: actions/upload-artifact@v4
-        if: ${{ failure() && steps.diff.conclusion == 'failure' }}
-        with:
-          name: dist
-          path: dist/
+  call-check-dist:
+    name: Check dist/
+    uses: actions/reusable-workflows/.github/workflows/check-dist.yml@main
+    with:
+      node-version: '24.x'

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,14 @@
+name: CodeQL analysis
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  schedule:
+    - cron: '0 3 * * 0'
+
+jobs:
+  call-codeQL-analysis:
+    name: CodeQL analysis
+    uses: actions/reusable-workflows/.github/workflows/codeql-analysis.yml@main

.github/workflows/licensed.yml

@@ -9,20 +9,6 @@ on:
       - main
 
 jobs:
-  test:
-    runs-on: ubuntu-latest
-    name: Check licenses
-    steps:
-      - uses: actions/checkout@v3
-      - name: Set Node.js 16.x
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16.x
-      - run: npm ci
-      - name: Install licensed
-        run: |
-          cd $RUNNER_TEMP
-          curl -Lfs -o licensed.tar.gz https://github.com/github/licensed/releases/download/3.4.4/licensed-3.4.4-linux-x64.tar.gz
-          sudo tar -xzf licensed.tar.gz
-          sudo mv licensed /usr/local/bin/licensed
-      - run: licensed status
+  call-licensed:
+    name: Licensed
+    uses: actions/reusable-workflows/.github/workflows/licensed.yml@main

.github/workflows/microsoft-validation.yml

@@ -0,0 +1,143 @@
+name: Validate Microsoft build of Go
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+
+jobs:
+  microsoft-basic:
+    name: 'Microsoft build of Go ${{ matrix.go-version }} on ${{ matrix.os }}'
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        go-version: ['1.25', '1.24']
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup Microsoft build of Go ${{ matrix.go-version }}
+        uses: ./
+        with:
+          go-version: ${{ matrix.go-version }}
+          go-download-base-url: 'https://aka.ms/golang/release/latest'
+          cache: false
+
+      - name: Verify Go installation
+        run: go version
+
+      - name: Verify Go env
+        run: go env
+
+      - name: Verify Go is functional
+        shell: bash
+        run: |
+          # Create a simple Go program and run it
+          mkdir -p /tmp/test-go && cd /tmp/test-go
+          cat > main.go << 'EOF'
+          package main
+          import "fmt"
+          func main() {
+            fmt.Println("Hello from Microsoft build of Go!")
+          }
+          EOF
+          go run main.go
+
+  microsoft-env-var:
+    name: 'Microsoft build of Go via env var on ${{ matrix.os }}'
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    env:
+      GO_DOWNLOAD_BASE_URL: 'https://aka.ms/golang/release/latest'
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup Microsoft build of Go via environment variable
+        uses: ./
+        with:
+          go-version: '1.25'
+          cache: false
+
+      - name: Verify Go installation
+        run: go version
+
+      - name: Verify Go is functional
+        shell: bash
+        run: |
+          mkdir -p /tmp/test-go && cd /tmp/test-go
+          cat > main.go << 'EOF'
+          package main
+          import "fmt"
+          func main() {
+            fmt.Println("Hello from Microsoft build of Go via env var!")
+          }
+          EOF
+          go run main.go
+
+  microsoft-architecture:
+    name: 'Microsoft build of Go arch ${{ matrix.architecture }} on ${{ matrix.os }}'
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+        architecture: [x64]
+        include:
+          - os: macos-latest
+            architecture: arm64
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup Microsoft build of Go with architecture
+        uses: ./
+        with:
+          go-version: '1.25'
+          go-download-base-url: 'https://aka.ms/golang/release/latest'
+          architecture: ${{ matrix.architecture }}
+          cache: false
+
+      - name: Verify Go installation
+        run: go version
+
+  microsoft-with-cache:
+    name: 'Microsoft build of Go with caching on ${{ matrix.os }}'
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup Microsoft build of Go with caching
+        uses: ./
+        with:
+          go-version: '1.25'
+          go-download-base-url: 'https://aka.ms/golang/release/latest'
+          cache: true
+
+      - name: Verify Go installation
+        run: go version
+
+      - name: Verify Go is functional
+        shell: bash
+        run: |
+          mkdir -p /tmp/test-go && cd /tmp/test-go
+          go mod init test
+          cat > main.go << 'EOF'
+          package main
+          import "fmt"
+          func main() {
+            fmt.Println("Hello from cached Microsoft build of Go!")
+          }
+          EOF
+          go run main.go

.github/workflows/publish-immutable-actions.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checking out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Publish
         id: publish
-        uses: actions/publish-immutable-action@v0.0.4
+        uses: actions/publish-immutable-action@v0.0.4

.github/workflows/release-new-action-version.yml

@@ -1,4 +1,5 @@
 name: Release new action version
+
 on:
   release:
     types: [released]
@@ -21,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Update the ${{ env.TAG_NAME }} tag
-        uses: actions/publish-action@v0.2.1
+        uses: actions/publish-action@v0.4.0
         with:
           source-tag: ${{ env.TAG_NAME }}
           slack-webhook: ${{ secrets.SLACK_WEBHOOK }}

.github/workflows/update-config-files.yml

@@ -0,0 +1,11 @@
+name: Update configuration files
+
+on:
+  schedule:
+    - cron: '0 3 * * 0'
+  workflow_dispatch:
+
+jobs:
+  call-update-configuration-files:
+    name: Update configuration files
+    uses: actions/reusable-workflows/.github/workflows/update-config-files.yml@main

.github/workflows/versions.yml

@@ -1,4 +1,5 @@
 name: Validate 'setup-go'
+
 on:
   push:
     branches:
@@ -17,9 +18,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Setup Go Stable
         uses: ./
         with:
@@ -32,29 +33,31 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Setup Go oldStable
         uses: ./
         with:
           go-version: oldstable
       - name: Verify Go
         run: go version
-  
+
   aliases-arch:
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
         version: [stable, oldstable]
         architecture: [x64, x32]
         exclude:
-        - os: macos-latest
-          architecture: x32
+          - os: macos-latest
+            architecture: x32
+          - os: macos-latest-large
+            architecture: x32
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Setup Go ${{ matrix.version }} ${{ matrix.architecture }}
         uses: ./
         with:
@@ -69,11 +72,17 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-latest]
-        go: [1.17, 1.18, 1.19]
+        os: [macos-latest, windows-latest, ubuntu-latest, macos-latest-large]
+        go: [1.21.13, 1.22.8, 1.23.2]
+        include:
+          - os: windows-latest
+            go: 1.20.14
+        exclude:
+          - os: windows-latest
+            go: 1.23.2
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
       - name: setup-go ${{ matrix.go }}
         uses: ./
@@ -89,10 +98,10 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
-        go-version: [1.16, 1.17]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
+        go-version: ['1.20', '1.21', '1.22', '1.23']
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Setup Go and check latest
         uses: ./
         with:
@@ -106,15 +115,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-13]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Setup Go and check latest
         uses: ./
         with:
           go-version-file: __tests__/data/go.mod
       - name: verify go
-        run: __tests__/verify-go.sh 1.14
+        run: __tests__/verify-go.sh 1.20.14
         shell: bash
 
   go-version-file-with-gowork:
@@ -122,28 +131,59 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Setup Go and check latest
         uses: ./
         with:
           go-version-file: __tests__/data/go.work
       - name: verify go
-        run: __tests__/verify-go.sh 1.19
+        run: __tests__/verify-go.sh 1.21
         shell: bash
 
-  setup-versions-from-manifest:
-    name: Setup ${{ matrix.go }} ${{ matrix.os }}
+  go-version-file-with-tool-versions:
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-13, windows-latest, ubuntu-latest]
-        go: [1.12.16, 1.13.11, 1.14.3]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
+    steps:
+      - uses: actions/checkout@v6
+      - name: Setup Go and check latest
+        uses: ./
+        with:
+          go-version-file: __tests__/data/.tool-versions
+      - name: verify go
+        run: __tests__/verify-go.sh 1.23.2
+        shell: bash
+
+  go-version-file-with-go-version:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
+    steps:
+      - uses: actions/checkout@v6
+      - name: Setup Go from .go-version file
+        uses: ./
+        with:
+          go-version-file: __tests__/data/.go-version
+      - name: verify go
+        run: __tests__/verify-go.sh 1.22.4
+        shell: bash
+
+  setup-versions-from-manifest:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-latest, macos-latest-large]
+        go: [1.20.14, 1.21.10, 1.22.8, 1.23.2]
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
       - name: setup-go ${{ matrix.go }}
         uses: ./
@@ -155,19 +195,15 @@ jobs:
         shell: bash
 
   setup-versions-from-dist:
-    name: Setup ${{ matrix.go }} ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-13, windows-latest, ubuntu-latest]
-        go: [1.11.12, 1.8.6]
-        exclude:
-          - os: macos-13
-            go: 1.8.6
+        os: [windows-latest, ubuntu-latest, macos-latest-large]
+        go: [1.11.12]
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
       - name: setup-go ${{ matrix.go }}
         uses: ./
@@ -183,14 +219,23 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
-        go-version: [1.16, 1.17]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
+        go-version: [1.20.14, 1.21, 1.22, 1.23]
+        include:
+          - os: macos-latest
+            architecture: arm64
+          - os: ubuntu-latest
+            architecture: x64
+          - os: windows-latest
+            architecture: x64
+          - os: macos-latest-large
+            architecture: x64
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Setup Go and check latest
         uses: ./
         with:
           go-version: ${{ matrix.go-version }}
-          architecture: x64
+          architecture: ${{ matrix.architecture }}
       - name: Verify Go
         run: go version

.github/workflows/windows-validation.yml

@@ -0,0 +1,136 @@
+name: Validate Windows installation
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+
+jobs:
+  create-link-if-not-default:
+    runs-on: windows-latest
+    name: 'Validate if symlink is created'
+    strategy:
+      matrix:
+        cache: [false, true]
+        go: [1.20.1]
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: 'Setup ${{ matrix.cache }}, cache: ${{ matrix.go }}'
+        uses: ./
+        with:
+          go-version: ${{ matrix.go }}
+          cache: ${{ matrix.cache }}
+
+      - name: 'Drive C: should have zero size link'
+        run: |
+          du -m -s 'C:\hostedtoolcache\windows\go\${{ matrix.go }}\x64'
+          # make sure drive c: contains only a link
+          size=$(du -m -s 'C:\hostedtoolcache\windows\go\${{ matrix.go }}\x64'|cut -f1 -d$'\t')
+          if [ $size -ne 0 ];then
+            echo 'Size of the link created on drive c: must be 0'
+            exit 1
+          fi
+        shell: bash
+
+      # Drive D: is small, take care the action does not eat up the space
+      - name: 'Drive D: space usage should be below 1G'
+        run: |
+          du -m -s 'D:\hostedtoolcache\windows\go\${{ matrix.go }}\x64'
+          size=$(du -m -s 'D:\hostedtoolcache\windows\go\${{ matrix.go }}\x64'|cut -f1 -d$'\t')
+          # make sure archive does not take lot of space
+          if [ $size -gt 999 ];then
+            echo 'Size of installed on drive d: go is too big';
+            exit 1
+          fi
+        shell: bash
+
+      # make sure the Go installation has not been changed to the end user
+      - name: Test paths and environments
+        run: |
+          echo $PATH
+          which go
+          go version
+          go env
+          if [ $(which go) != '/c/hostedtoolcache/windows/go/${{ matrix.go }}/x64/bin/go' ];then
+            echo 'which go should return "/c/hostedtoolcache/windows/go/${{ matrix.go }}/x64/bin/go"'
+            exit 1
+          fi
+          if [ $(go env GOROOT) != 'C:\hostedtoolcache\windows\go\${{ matrix.go }}\x64' ];then
+            echo 'go env GOROOT should return "C:\hostedtoolcache\windows\go\${{ matrix.go }}\x64"'
+            exit 1
+          fi
+        shell: bash
+
+  find-default-go:
+    name: 'Find default go version'
+    runs-on: windows-latest
+    outputs:
+      version: ${{ steps.goversion.outputs.version }}
+    steps:
+      - run: |
+          version=`go env GOVERSION|sed s/^go//`
+          echo "default go version: $version"
+          echo "version=$version" >> "$GITHUB_OUTPUT"
+        id: goversion
+        shell: bash
+
+  dont-create-link-if-default:
+    name: 'Validate if symlink is not created for default go'
+    runs-on: windows-latest
+    needs: find-default-go
+    strategy:
+      matrix:
+        cache: [false, true]
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: 'Setup default go, cache: ${{ matrix.cache }}'
+        uses: ./
+        with:
+          go-version: ${{ needs.find-default-go.outputs.version }}
+          cache: ${{ matrix.cache }}
+
+      - name: 'Drive C: should have Go installation, cache: ${{ matrix.cache}}'
+        run: |
+          size=$(du -m -s 'C:\hostedtoolcache\windows\go\${{ needs.find-default-go.outputs.version }}\x64'|cut -f1 -d$'\t')
+          if [ $size -eq 0 ];then
+            echo 'Size of the hosted go installed on drive c: must be above zero'
+            exit 1
+          fi
+        shell: bash
+
+      - name: 'Drive D: should not have Go installation, cache: ${{ matrix.cache }}'
+        run: |
+          if [ -e 'D:\hostedtoolcache\windows\go\${{ needs.find-default-go.outputs.version }}\x64' ];then
+            echo 'D:\hostedtoolcache\windows\go\${{ needs.find-default-go.outputs.version }}\x64 should not exist for hosted version of go';
+            exit 1
+          fi
+        shell: bash
+
+  hostedtoolcache:
+    name: 'Validate if hostedtoolcache works as expected'
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        cache: [false]
+        go: [1.20.1]
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: 'Setup ${{ matrix.go }}, cache: ${{ matrix.cache }}'
+        uses: ./
+        with:
+          go-version: ${{ matrix.go }}
+          cache: ${{ matrix.cache }}
+
+      - name: 'Setup ${{ matrix.go }}, cache: ${{ matrix.cache }} (from hostedtoolcache)'
+        uses: ./
+        with:
+          go-version: ${{ matrix.go }}
+          cache: ${{ matrix.cache }}

.github/workflows/workflow.yml

@@ -1,39 +0,0 @@
-name: build-test
-on:
-  push:
-    branches:
-      - main
-    paths-ignore:
-      - '**.md'
-  pull_request:
-    paths-ignore:
-      - '**.md'
-jobs:
-  run:
-    name: Run
-    runs-on: ${{ matrix.operating-system }}
-    strategy:
-      matrix:
-        operating-system: [ubuntu-latest, windows-latest]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-
-      - name: Setup node 16
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16
-          cache: npm
-
-      - name: npm ci
-        run: npm ci
-
-      - name: Lint
-        run: npm run format-check
-
-      - name: npm test
-        run: npm test
-
-      - name: audit packages
-        run: npm audit --audit-level=high
-        if: matrix.operating-system == 'ubuntu-latest'

.licensed.yml

@@ -12,4 +12,5 @@ allowed:
   - 0bsd
 
 reviewed:
-  npm:
+  npm:
+     - "@actions/http-client"

.prettierignore

@@ -0,0 +1,7 @@
+# Ignore list
+/*
+
+# Do not ignore these folders:
+!__tests__/
+!.github/
+!src/

.prettierrc.js

@@ -0,0 +1,11 @@
+// This is a reusable configuration file copied from https://github.com/actions/reusable-workflows/tree/main/reusable-configurations. Please don't make changes to this file as it's the subject of an automatic update.
+module.exports = {
+  printWidth: 80,
+  tabWidth: 2,
+  useTabs: false,
+  semi: true,
+  singleQuote: true,
+  trailingComma: 'none',
+  bracketSpacing: false,
+  arrowParens: 'avoid'
+};

.prettierrc.json

@@ -1,11 +0,0 @@
-{
-    "printWidth": 80,
-    "tabWidth": 2,
-    "useTabs": false,
-    "semi": true,
-    "singleQuote": true,
-    "trailingComma": "none",
-    "bracketSpacing": false,
-    "arrowParens": "avoid",
-    "parser": "typescript"
-  }

CODEOWNERS

@@ -1 +1 @@
-* @actions/actions-service
+* @actions/setup-actions-team

README.md

@@ -1,224 +1,148 @@
 # setup-go
 
-[![build-test](https://github.com/actions/setup-go/actions/workflows/workflow.yml/badge.svg)](https://github.com/actions/setup-go/actions/workflows/workflow.yml)
+[![Basic validation](https://github.com/actions/setup-go/actions/workflows/basic-validation.yml/badge.svg)](https://github.com/actions/setup-go/actions/workflows/basic-validation.yml)
 [![Validate 'setup-go'](https://github.com/actions/setup-go/actions/workflows/versions.yml/badge.svg)](https://github.com/actions/setup-go/actions/workflows/versions.yml)
 
-This action sets up a go environment for use in actions by:
+This action sets up a Go environment for use in GitHub Actions by:
 
-- Optionally downloading and caching a version of Go by version and adding to `PATH`.
-- Registering problem matchers for error output.
+- Optionally downloading and caching a version of Go by version and adding it to the PATH
+- Optionally caching Go modules and build outputs
+- Registering problem matchers for error output
 
-# V3
+## Breaking changes in V6
 
-The V3 edition of the action offers:
+The V6 edition of the action includes:
+- **Upgraded Node.js runtime from node20 to node24**
+  > Make sure your runner is on version v2.327.1 or later to ensure compatibility with this release. See [Release Notes](https://github.com/actions/runner/releases/tag/v2.327.1)
 
-- Adds `GOBIN` to the `PATH`
-- Proxy support
-- Check latest version
-- Caching packages dependencies
-- stable and oldstable aliases
-- Bug Fixes (including issues around version matching and semver)
+- **Go toolchain**
+  - Supports both `go` and `toolchain` directives in `go.mod`. If the `toolchain` directive is present, its version is used; otherwise, the action falls back to the `go` directive.
 
-The action will first check the local cache for a version match. If a version is not found locally, it will pull it from the `main` branch of the [go-versions](https://github.com/actions/go-versions/blob/main/versions-manifest.json) repository. On miss or failure, it will fall back to downloading directly from [go dist](https://storage.googleapis.com/golang). To change the default behavior, please use the [check-latest input](#check-latest-version).
+- **Cache key update**
+  - By default, the cache key for Go modules is based on `go.mod`. To use `go.sum`, configure the `cache-dependency-path` input.
 
-**Note:** The `setup-go` action uses executable binaries which are built by Golang side. The action does not build golang from source code.
+See full release notes on the [releases page](https://github.com/actions/setup-go/releases).
 
-Matching by [semver spec](https://github.com/npm/node-semver):
+## Usage
 
+See [action.yml](action.yml).
+
+<!-- start usage -->
 ```yaml
-steps:
-  - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
-    with:
-      go-version: '^1.13.1' # The Go version to download (if necessary) and use.
-  - run: go version
-```
-
-```yaml
-steps:
-  - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
-    with:
-      go-version: '>=1.17.0'
-  - run: go version
-```
-
-Matching an unstable pre-release:
-
-```yaml
-steps:
-  - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
-    with:
-      go-version: '1.18.0-rc.1' # The Go version to download (if necessary) and use.
-  - run: go version
-```
-
-```yaml
-steps:
-  - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
-    with:
-      go-version: '1.16.0-beta.1' # The Go version to download (if necessary) and use.
-  - run: go version
-```
-
-# Usage
-
-See [action.yml](action.yml)
-
-## Basic
-
-```yaml
-steps:
-  - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
-    with:
-      go-version: '1.16.1' # The Go version to download (if necessary) and use.
-  - run: go run hello.go
-```
-
-
-## Check latest version
-
-The `check-latest` flag defaults to `false`. Use the default or set `check-latest` to `false` if you prefer stability and if you want to ensure a specific Go version is always used.
-
-If `check-latest` is set to `true`, the action first checks if the cached version is the latest one. If the locally cached version is not the most up-to-date, a Go version will then be downloaded. Set `check-latest` to `true` if you want the most up-to-date Go version to always be used.
-
-> Setting `check-latest` to `true` has performance implications as downloading Go versions is slower than using cached versions.
-
-```yaml
-steps:
-  - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
-    with:
-      go-version: '1.14'
-      check-latest: true
-  - run: go run hello.go
-```
-
-## Using stable/oldstable aliases
-
-If `stable` is provided, action will get the latest stable version from the [`go-versions`](https://github.com/actions/go-versions/blob/main/versions-manifest.json) repository manifest. 
-
-If `oldstable` is provided, when current release is 1.19.x, action will resolve version as 1.18.x, where x is the latest patch release.
-
-**Note:** using these aliases will result in same version as using corresponding minor release with `check-latest` input set to `true`
-
-```yaml
-steps:
-  - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
-    with:
-      go-version: 'stable'
-  - run: go run hello.go
-```
-
-```yaml
-steps:
-  - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
-    with:
-      go-version: 'oldstable'
-  - run: go run hello.go
-```
-
-## Caching dependency files and build outputs:
-
-The action has a built-in functionality for caching and restoring go modules and build outputs. It uses [actions/cache](https://github.com/actions/cache) under the hood but requires less configuration settings. The `cache` input is optional, and caching is turned off by default.
-
-The action defaults to search for the dependency file - go.sum in the repository root, and uses its hash as a part of the cache key. Use `cache-dependency-path` input for cases when multiple dependency files are used, or they are located in different subdirectories.
-
-**Caching without specifying dependency file path**
-```yaml
-steps:
-  - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
-    with:
-      go-version: '1.17'
-      check-latest: true
-      cache: true
-  - run: go run hello.go
-```
-
-**Caching in monorepos**
-```yaml
-steps:
-  - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
-    with:
-      go-version: '1.17'
-      check-latest: true
-      cache: true
-      cache-dependency-path: subdir/go.sum
-  - run: go run hello.go
-  ```
-## Getting go version from the go.mod file
-
-The `go-version-file` input accepts a path to a `go.mod` file or a `go.work` file that contains the version of Go to be used by a project. As the `go.mod` file contains only major and minor (e.g. 1.18) tags, the action will search for the latest available patch version sequentially in the runner's directory with the cached tools, in the [version-manifest.json](https://github.com/actions/go-versions/blob/main/versions-manifest.json) file or at the go servers.
-
-If both the `go-version` and the `go-version-file` inputs are provided then the `go-version` input is used.
-> The action will search for the `go.mod` file relative to the repository root
-
-```yaml
-steps:
-- uses: actions/checkout@v3
-- uses: actions/setup-go@v3
+- uses: actions/setup-go@v6
   with:
-    go-version-file: 'path/to/go.mod'
-- run: go version
+    # Version or version range of Go to use
+    go-version: '1.23'
+    
+    # Path to go.mod, go.work, .go-version, or .tool-versions file
+    # Note: if both go-version and go-version-file are provided, go-version takes precedence.
+    go-version-file: 'go.mod'
+    
+    # Set this option if you want the action to check for the latest available version
+    # Default: false
+    check-latest: false
+    
+    # GitHub token for authentication
+    token: ${{ github.token }}
+    
+    # Used to specify whether caching is needed.
+    # Default: true
+    cache: true
+    
+    # Path to dependency files for caching
+    cache-dependency-path: 'go.sum'
+    
+    # Architecture to install (auto-detected if not specified)
+    architecture: 'x64'
+    
+    # Custom base URL for Go downloads (e.g., for mirrors)
+    go-download-base-url: ''
 ```
+<!-- end usage -->
 
-## Matrix testing
+**Basic:**
 
 ```yaml
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        go: [ '1.14', '1.13' ]
-    name: Go ${{ matrix.go }} sample
-    steps:
-      - uses: actions/checkout@v3
-      - name: Setup go
-        uses: actions/setup-go@v3
-        with:
-          go-version: ${{ matrix.go }}
-      - run: go run hello.go
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25' # The Go version to download (if necessary) and use.
+  - run: go run hello.go
 ```
 
-### Supported version syntax
+**Version resolution behavior:**
+
+The action resolves the requested version in the following order:
+1. **Local cache** - Checks the local tool cache for a matching [semver](https://github.com/npm/node-semver#versions) version.
+2. **go-versions repository** - If the requested version isn’t available in the tool cache, it pulls the version manifest from the `main` branch of the [go-versions repository](https://github.com/actions/go-versions/blob/main/versions-manifest.json).
+3. **Direct download** - If that lookup misses or fails, it will fall back to downloading directly from the [official Go distribution site](https://go.dev/dl).
+
+To change the default behavior, please use
+the [check-latest input](docs/advanced-usage.md#check-latest-version).
+
+> **Note**: The `setup-go` action uses executable binaries built by the Go team and does not build Go binaries from source code.
+
+## Supported version syntax
 
 The `go-version` input supports the following syntax:
 
-- Specific versions: `1.15`, `1.16.1`, `1.17.0-rc.2`, `1.16.0-beta.1`
-- SemVer's version range syntax: `^1.13.1`, `>=1.18.0-rc.1`
+- Specific versions: `1.25`, `1.24.11`, `1.24.0-rc.1`, `1.23.0-beta.1`
+- SemVer version range syntax: `^1.25.1`, `~1.24.1`, `>=1.25.0-rc.1`, `<1.25.0`, `>=1.22.0 <1.24.0`
+- Aliases: `stable`, `oldstable`
+- Wildcards: `1.25.x`, `1.x`
 
-For more information about semantic versioning, please refer to [semver](https://github.com/npm/node-semver) documentation.
+For details on Semantic Versioning, see [the semver package documentation](https://github.com/npm/node-semver).
 
-## Using `setup-go` on GHES
+> **Note**: Due to the peculiarities of YAML parsing, it is recommended to wrap the version in single quotation marks:
+>
+> ```yaml
+>   go-version: '1.20'
+> ```
+>
+> The recommendation is based on the YAML parser's behavior, which interprets non-wrapped values as numbers and, in the case of version `1.20`, trims it down to `1.2`, which may not be very obvious.
 
-`setup-go` comes pre-installed on the appliance with GHES if Actions is enabled. When dynamically downloading Go distributions, `setup-go` downloads distributions from [`actions/go-versions`](https://github.com/actions/go-versions) on github.com (outside of the appliance). These calls to `actions/go-versions` are made via unauthenticated requests, which are limited to [60 requests per hour per IP](https://docs.github.com/en/rest/overview/resources-in-the-rest-api#rate-limiting). If more requests are made within the time frame, then you will start to see rate-limit errors during downloading that looks like: `##[error]API rate limit exceeded for...`. After that error the action will try to download versions directly from https://storage.googleapis.com/golang, but it also can have rate limit so it's better to put token.
+For more usage examples, please refer to the section: [Using go-version input](docs/advanced-usage.md#using-the-go-version-input) of the [Advanced usage](docs/advanced-usage.md) guide.
 
-To get a higher rate limit, you can [generate a personal access token on github.com](https://github.com/settings/tokens/new) and pass it as the `token` input for the action:
+## Recommended permissions
+
+When using the `setup-go` action in your GitHub Actions workflow, it is recommended to set the following permissions to ensure proper functionality:
 
 ```yaml
-uses: actions/setup-go@v3
-with:
-  token: ${{ secrets.GH_DOTCOM_TOKEN }}
-  go-version: 1.18
+permissions:
+  contents: read # access to check out code and install dependencies
 ```
 
-If the runner is not able to access github.com, any Go versions requested during a workflow run must come from the runner's tool cache. See "[Setting up the tool cache on self-hosted runners without internet access](https://docs.github.com/en/enterprise-server@3.2/admin/github-actions/managing-access-to-actions-from-githubcom/setting-up-the-tool-cache-on-self-hosted-runners-without-internet-access)" for more information.
+## Caching dependency files and build outputs
 
-# License
+The action includes built-in caching and restoration for Go modules and build outputs. It uses
+[toolkit/cache](https://github.com/actions/toolkit/tree/main/packages/cache) under the hood, but requires less configuration.
+The `cache` input is optional, and caching is enabled by default. To disable caching, set `cache: false`.
 
-The scripts and documentation in this project are released under the [MIT License](LICENSE)
+By default, the action looks for `go.mod` in the repository root and uses its hash as part of the cache key. Use the `cache-dependency-path` input when you have multiple dependency files, or when they’re located in different subdirectories. This input supports glob patterns.
 
-# Contributions
+If caching cannot be performed for any reason, the action logs a warning and continues workflow execution.
 
-Contributions are welcome! See [Contributor's Guide](docs/contributors.md)
+For examples of using `cache-dependency-path`, see the [Caching](docs/advanced-usage.md#caching) section of the [Advanced usage](docs/advanced-usage.md) guide.
+
+
+## Advanced usage
+
+- [Using the go-version input](docs/advanced-usage.md#using-the-go-version-input)
+- [Using the go-version-file input](docs/advanced-usage.md#using-the-go-version-file-input)
+- [Check latest version](docs/advanced-usage.md#check-latest-version)
+- [Caching](docs/advanced-usage.md#caching)
+- [Outputs](docs/advanced-usage.md#outputs)
+- [Custom download URL](docs/advanced-usage.md#custom-download-url)
+- [Using `setup-go` on GHES](docs/advanced-usage.md#using-setup-go-on-ghes)
+
+## License
+
+The scripts and documentation in this project are released under the [MIT License](LICENSE).
+
+## Contributions
+
+Contributions are welcome! See our [Contributor's Guide](docs/contributors.md).
 
 ## Code of Conduct
 

__tests__/cache-restore.test.ts

@@ -1,99 +1,102 @@
 import * as cache from '@actions/cache';
 import * as core from '@actions/core';
 import * as glob from '@actions/glob';
+import fs from 'fs';
 
 import * as cacheRestore from '../src/cache-restore';
 import * as cacheUtils from '../src/cache-utils';
 import {PackageManagerInfo} from '../src/package-managers';
 
 describe('restoreCache', () => {
-  //Arrange
-  let hashFilesSpy = jest.spyOn(glob, 'hashFiles');
-  let getCacheDirectoryPathSpy = jest.spyOn(
-    cacheUtils,
-    'getCacheDirectoryPath'
-  );
-  let restoreCacheSpy = jest.spyOn(cache, 'restoreCache');
-  let infoSpy = jest.spyOn(core, 'info');
-  let setOutputSpy = jest.spyOn(core, 'setOutput');
+  let hashFilesSpy: jest.SpyInstance;
+  let getCacheDirectoryPathSpy: jest.SpyInstance;
+  let restoreCacheSpy: jest.SpyInstance;
+  let infoSpy: jest.SpyInstance;
+  let setOutputSpy: jest.SpyInstance;
 
   const versionSpec = '1.13.1';
   const packageManager = 'default';
   const cacheDependencyPath = 'path';
 
+  let originalWorkspace: string | undefined;
+
   beforeEach(() => {
+    originalWorkspace = process.env.GITHUB_WORKSPACE;
+    process.env.GITHUB_WORKSPACE = '/test/workspace';
+    //Arrange
+    hashFilesSpy = jest.spyOn(glob, 'hashFiles');
+    getCacheDirectoryPathSpy = jest.spyOn(cacheUtils, 'getCacheDirectoryPath');
+    restoreCacheSpy = jest.spyOn(cache, 'restoreCache');
+    infoSpy = jest.spyOn(core, 'info');
+    setOutputSpy = jest.spyOn(core, 'setOutput');
+
     getCacheDirectoryPathSpy.mockImplementation(
       (PackageManager: PackageManagerInfo) => {
-        return new Promise<string[]>(resolve => {
-          resolve(['cache_directory_path', 'cache_directory_path']);
-        });
+        return Promise.resolve([
+          'cache_directory_path',
+          'cache_directory_path'
+        ]);
       }
     );
   });
 
-  it('should throw if dependency file path is not valid', async () => {
-    //Arrange
-    hashFilesSpy.mockImplementation((somePath: string) => {
-      return new Promise<string>(resolve => {
-        resolve('');
-      });
-    });
+  afterEach(() => {
+    process.env.GITHUB_WORKSPACE = originalWorkspace;
+    jest.restoreAllMocks();
+  });
 
-    //Act + Assert
-    expect(async () => {
-      await cacheRestore.restoreCache(
+  it('should throw if dependency file path is not valid', async () => {
+    // Arrange
+    hashFilesSpy.mockImplementation(() => Promise.resolve(''));
+    // Act + Assert
+    await expect(
+      cacheRestore.restoreCache(
         versionSpec,
         packageManager,
         cacheDependencyPath
-      );
-    }).rejects.toThrowError(
+      )
+    ).rejects.toThrow(
       'Some specified paths were not resolved, unable to cache dependencies.'
     );
   });
 
-  it('should inform if cache hit is not occured', async () => {
-    //Arrange
-    hashFilesSpy.mockImplementation((somePath: string) => {
-      return new Promise<string>(resolve => {
-        resolve('file_hash');
-      });
-    });
-
-    restoreCacheSpy.mockImplementation(() => {
-      return new Promise<string>(resolve => {
-        resolve('');
-      });
-    });
-
-    //Act + Assert
+  it('should inform if cache hit is not occurred', async () => {
+    // Arrange
+    hashFilesSpy.mockImplementation(() => Promise.resolve('file_hash'));
+    restoreCacheSpy.mockImplementation(() => Promise.resolve(''));
+    // Act + Assert
     await cacheRestore.restoreCache(
       versionSpec,
       packageManager,
       cacheDependencyPath
     );
-    expect(infoSpy).toBeCalledWith(`Cache is not found`);
+    expect(infoSpy).toHaveBeenCalledWith('Cache is not found');
   });
 
-  it('should set output if cache hit is occured', async () => {
-    //Arrange
-    hashFilesSpy.mockImplementation((somePath: string) => {
-      return new Promise<string>(resolve => {
-        resolve('file_hash');
-      });
-    });
-
-    restoreCacheSpy.mockImplementation(() => {
-      return new Promise<string>(resolve => {
-        resolve('cache_key');
-      });
-    });
-
-    //Act + Assert
+  it('should set output if cache hit is occurred', async () => {
+    // Arrange
+    hashFilesSpy.mockImplementation(() => Promise.resolve('file_hash'));
+    restoreCacheSpy.mockImplementation(() => Promise.resolve('cache_key'));
+    // Act + Assert
     await cacheRestore.restoreCache(
       versionSpec,
       packageManager,
       cacheDependencyPath
     );
-    expect(setOutputSpy).toBeCalledWith('cache-hit', true);
+    expect(setOutputSpy).toHaveBeenCalledWith('cache-hit', true);
+  });
+
+  it('should throw if dependency file is not found in workspace', async () => {
+    jest.spyOn(fs, 'readdirSync').mockReturnValue(['main.go'] as any);
+
+    await expect(
+      cacheRestore.restoreCache(
+        versionSpec,
+        packageManager
+        // No cacheDependencyPath
+      )
+    ).rejects.toThrow(
+      'Dependencies file is not found in /test/workspace. Supported file pattern: go.mod'
+    );
   });
 });

__tests__/cache-save.test.ts

@@ -0,0 +1,155 @@
+import * as cache from '@actions/cache';
+import * as core from '@actions/core';
+import fs from 'fs';
+
+import {run} from '../src/cache-save';
+import * as cacheUtils from '../src/cache-utils';
+import {State} from '../src/constants';
+
+describe('cache-save', () => {
+  const primaryKey = 'primary-key';
+
+  let primaryKeyValue: string;
+  let matchedKeyValue: string;
+
+  let getBooleanInputSpy: jest.SpyInstance;
+  let getStateSpy: jest.SpyInstance;
+  let infoSpy: jest.SpyInstance;
+  let warningSpy: jest.SpyInstance;
+  let debugSpy: jest.SpyInstance;
+  let setFailedSpy: jest.SpyInstance;
+  let saveCacheSpy: jest.SpyInstance;
+  let getCacheDirectoryPathSpy: jest.SpyInstance;
+  let existsSpy: jest.SpyInstance;
+
+  beforeEach(() => {
+    primaryKeyValue = primaryKey;
+    matchedKeyValue = 'matched-key';
+
+    getBooleanInputSpy = jest.spyOn(core, 'getBooleanInput');
+    getBooleanInputSpy.mockReturnValue(true);
+
+    getStateSpy = jest.spyOn(core, 'getState');
+    getStateSpy.mockImplementation((key: string) => {
+      if (key === State.CachePrimaryKey) {
+        return primaryKeyValue;
+      }
+      if (key === State.CacheMatchedKey) {
+        return matchedKeyValue;
+      }
+      return '';
+    });
+
+    infoSpy = jest.spyOn(core, 'info');
+    infoSpy.mockImplementation(() => undefined);
+
+    warningSpy = jest.spyOn(core, 'warning');
+    warningSpy.mockImplementation(() => undefined);
+
+    debugSpy = jest.spyOn(core, 'debug');
+    debugSpy.mockImplementation(() => undefined);
+
+    setFailedSpy = jest.spyOn(core, 'setFailed');
+    setFailedSpy.mockImplementation(() => undefined);
+
+    saveCacheSpy = jest.spyOn(cache, 'saveCache');
+    saveCacheSpy.mockImplementation(() => Promise.resolve(0));
+
+    getCacheDirectoryPathSpy = jest.spyOn(cacheUtils, 'getCacheDirectoryPath');
+    getCacheDirectoryPathSpy.mockImplementation(() =>
+      Promise.resolve(['cache_directory_path', 'cache_directory_path'])
+    );
+
+    existsSpy = jest.spyOn(fs, 'existsSync');
+    existsSpy.mockImplementation(() => true);
+  });
+
+  afterEach(() => {
+    jest.restoreAllMocks();
+  });
+
+  it('does not save cache when the cache input is false', async () => {
+    getBooleanInputSpy.mockReturnValue(false);
+
+    await run();
+
+    expect(saveCacheSpy).not.toHaveBeenCalled();
+    expect(warningSpy).not.toHaveBeenCalled();
+    expect(setFailedSpy).not.toHaveBeenCalled();
+  });
+
+  it('does not save cache when there are no cache folders on the disk', async () => {
+    existsSpy.mockImplementation(() => false);
+
+    await run();
+
+    expect(warningSpy).toHaveBeenCalledWith(
+      'There are no cache folders on the disk'
+    );
+    expect(saveCacheSpy).not.toHaveBeenCalled();
+    expect(setFailedSpy).not.toHaveBeenCalled();
+  });
+
+  it('does not save cache when the primary key was not generated', async () => {
+    primaryKeyValue = '';
+
+    await run();
+
+    expect(infoSpy).toHaveBeenCalledWith(
+      'Primary key was not generated. Please check the log messages above for more errors or information'
+    );
+    expect(saveCacheSpy).not.toHaveBeenCalled();
+    expect(setFailedSpy).not.toHaveBeenCalled();
+  });
+
+  it('does not save cache when a cache hit occurred on the primary key', async () => {
+    matchedKeyValue = primaryKey;
+
+    await run();
+
+    expect(infoSpy).toHaveBeenCalledWith(
+      `Cache hit occurred on the primary key ${primaryKey}, not saving cache.`
+    );
+    expect(saveCacheSpy).not.toHaveBeenCalled();
+    expect(setFailedSpy).not.toHaveBeenCalled();
+  });
+
+  it('saves cache when the primary key differs from the matched key', async () => {
+    await run();
+
+    expect(saveCacheSpy).toHaveBeenCalled();
+    expect(infoSpy).toHaveBeenCalledWith(
+      `Cache saved with the key: ${primaryKey}`
+    );
+    expect(warningSpy).not.toHaveBeenCalled();
+    expect(setFailedSpy).not.toHaveBeenCalled();
+  });
+
+  it('save with -1 cacheId , should not fail workflow', async () => {
+    saveCacheSpy.mockImplementation(() => Promise.resolve(-1));
+
+    await run();
+
+    expect(saveCacheSpy).toHaveBeenCalled();
+    expect(debugSpy).toHaveBeenCalledWith(
+      `Cache was not saved for the key: ${primaryKey}`
+    );
+    expect(infoSpy).not.toHaveBeenCalledWith(
+      `Cache saved with the key: ${primaryKey}`
+    );
+    expect(warningSpy).not.toHaveBeenCalled();
+    expect(setFailedSpy).not.toHaveBeenCalled();
+  });
+
+  it('saves with error from toolkit, should not fail workflow', async () => {
+    saveCacheSpy.mockImplementation(() =>
+      Promise.reject(new Error('Unable to reach the service'))
+    );
+
+    await run();
+
+    expect(saveCacheSpy).toHaveBeenCalled();
+    expect(warningSpy).toHaveBeenCalledWith('Unable to reach the service');
+    expect(setFailedSpy).not.toHaveBeenCalled();
+  });
+});

__tests__/cache-utils.test.ts

@@ -6,7 +6,7 @@ import {PackageManagerInfo} from '../src/package-managers';
 
 describe('getCommandOutput', () => {
   //Arrange
-  let getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
+  const getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
 
   it('should return trimmed stdout in case of successful exit code', async () => {
     //Arrange
@@ -36,7 +36,7 @@ describe('getCommandOutput', () => {
     });
 
     //Act + Assert
-    expect(async () => {
+    await expect(async () => {
       await cacheUtils.getCommandOutput('command');
     }).rejects.toThrow();
   });
@@ -47,7 +47,7 @@ describe('getPackageManagerInfo', () => {
     //Arrange
     const packageManagerName = 'default';
     const expectedResult = {
-      dependencyFilePattern: 'go.sum',
+      dependencyFilePattern: 'go.mod',
       cacheFolderCommandList: ['go env GOMODCACHE', 'go env GOCACHE']
     };
 
@@ -62,7 +62,7 @@ describe('getPackageManagerInfo', () => {
     const packageManagerName = 'invalidName';
 
     //Act + Assert
-    expect(async () => {
+    await expect(async () => {
       await cacheUtils.getPackageManagerInfo(packageManagerName);
     }).rejects.toThrow();
   });
@@ -70,10 +70,10 @@ describe('getPackageManagerInfo', () => {
 
 describe('getCacheDirectoryPath', () => {
   //Arrange
-  let getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
+  const getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
 
   const validPackageManager: PackageManagerInfo = {
-    dependencyFilePattern: 'go.sum',
+    dependencyFilePattern: 'go.mod',
     cacheFolderCommandList: ['go env GOMODCACHE', 'go env GOCACHE']
   };
 
@@ -93,6 +93,41 @@ describe('getCacheDirectoryPath', () => {
       .then(data => expect(data).toEqual(expectedResult));
   });
 
+  it('should return path to the cache folder if one command return empty str', async () => {
+    //Arrange
+    getExecOutputSpy.mockImplementationOnce((commandLine: string) => {
+      return new Promise<exec.ExecOutput>(resolve => {
+        resolve({exitCode: 0, stdout: 'path/to/cache/folder', stderr: ''});
+      });
+    });
+
+    getExecOutputSpy.mockImplementationOnce((commandLine: string) => {
+      return new Promise<exec.ExecOutput>(resolve => {
+        resolve({exitCode: 0, stdout: '', stderr: ''});
+      });
+    });
+
+    const expectedResult = ['path/to/cache/folder'];
+
+    //Act + Assert
+    return cacheUtils
+      .getCacheDirectoryPath(validPackageManager)
+      .then(data => expect(data).toEqual(expectedResult));
+  });
+
+  it('should throw if the both commands return empty str', async () => {
+    getExecOutputSpy.mockImplementation((commandLine: string) => {
+      return new Promise<exec.ExecOutput>(resolve => {
+        resolve({exitCode: 10, stdout: '', stderr: ''});
+      });
+    });
+
+    //Act + Assert
+    await expect(async () => {
+      await cacheUtils.getCacheDirectoryPath(validPackageManager);
+    }).rejects.toThrow();
+  });
+
   it('should throw if the specified package name is invalid', async () => {
     getExecOutputSpy.mockImplementation((commandLine: string) => {
       return new Promise<exec.ExecOutput>(resolve => {
@@ -101,7 +136,7 @@ describe('getCacheDirectoryPath', () => {
     });
 
     //Act + Assert
-    expect(async () => {
+    await expect(async () => {
       await cacheUtils.getCacheDirectoryPath(validPackageManager);
     }).rejects.toThrow();
   });
@@ -109,8 +144,8 @@ describe('getCacheDirectoryPath', () => {
 
 describe('isCacheFeatureAvailable', () => {
   //Arrange
-  let isFeatureAvailableSpy = jest.spyOn(cache, 'isFeatureAvailable');
-  let warningSpy = jest.spyOn(core, 'warning');
+  const isFeatureAvailableSpy = jest.spyOn(cache, 'isFeatureAvailable');
+  const warningSpy = jest.spyOn(core, 'warning');
 
   it('should return true when cache feature is available', () => {
     //Arrange
@@ -118,16 +153,14 @@ describe('isCacheFeatureAvailable', () => {
       return true;
     });
 
-    let functionResult;
-
     //Act
-    functionResult = cacheUtils.isCacheFeatureAvailable();
+    const functionResult = cacheUtils.isCacheFeatureAvailable();
 
     //Assert
     expect(functionResult).toBeTruthy();
   });
 
-  it('should warn when cache feature is unavailable and GHES is not used ', () => {
+  it('should warn when cache feature is unavailable and GHES is not used', () => {
     //Arrange
     isFeatureAvailableSpy.mockImplementation(() => {
       return false;
@@ -135,7 +168,7 @@ describe('isCacheFeatureAvailable', () => {
 
     process.env['GITHUB_SERVER_URL'] = 'https://github.com';
 
-    let warningMessage =
+    const warningMessage =
       'The runner was not able to contact the cache service. Caching will be skipped';
 
     //Act
@@ -153,16 +186,14 @@ describe('isCacheFeatureAvailable', () => {
 
     process.env['GITHUB_SERVER_URL'] = 'https://github.com';
 
-    let functionResult;
-
     //Act
-    functionResult = cacheUtils.isCacheFeatureAvailable();
+    const functionResult = cacheUtils.isCacheFeatureAvailable();
 
     //Assert
     expect(functionResult).toBeFalsy();
   });
 
-  it('should throw when cache feature is unavailable and GHES is used', () => {
+  it('should warn when cache feature is unavailable and GHES is used', () => {
     //Arrange
     isFeatureAvailableSpy.mockImplementation(() => {
       return false;
@@ -170,10 +201,49 @@ describe('isCacheFeatureAvailable', () => {
 
     process.env['GITHUB_SERVER_URL'] = 'https://nongithub.com';
 
-    let errorMessage =
+    const warningMessage =
       'Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.';
 
     //Act + Assert
-    expect(() => cacheUtils.isCacheFeatureAvailable()).toThrow(errorMessage);
+    expect(cacheUtils.isCacheFeatureAvailable()).toBeFalsy();
+    expect(warningSpy).toHaveBeenCalledWith(warningMessage);
+  });
+});
+
+describe('isGhes', () => {
+  const pristineEnv = process.env;
+
+  beforeEach(() => {
+    jest.resetModules();
+    process.env = {...pristineEnv};
+  });
+
+  afterAll(() => {
+    process.env = pristineEnv;
+  });
+
+  it('returns false when the GITHUB_SERVER_URL environment variable is not defined', async () => {
+    delete process.env['GITHUB_SERVER_URL'];
+    expect(cacheUtils.isGhes()).toBeFalsy();
+  });
+
+  it('returns false when the GITHUB_SERVER_URL environment variable is set to github.com', async () => {
+    process.env['GITHUB_SERVER_URL'] = 'https://github.com';
+    expect(cacheUtils.isGhes()).toBeFalsy();
+  });
+
+  it('returns false when the GITHUB_SERVER_URL environment variable is set to a GitHub Enterprise Cloud-style URL', async () => {
+    process.env['GITHUB_SERVER_URL'] = 'https://contoso.ghe.com';
+    expect(cacheUtils.isGhes()).toBeFalsy();
+  });
+
+  it('returns false when the GITHUB_SERVER_URL environment variable has a .localhost suffix', async () => {
+    process.env['GITHUB_SERVER_URL'] = 'https://mock-github.localhost';
+    expect(cacheUtils.isGhes()).toBeFalsy();
+  });
+
+  it('returns true when the GITHUB_SERVER_URL environment variable is set to some other URL', async () => {
+    process.env['GITHUB_SERVER_URL'] = 'https://src.onpremise.fabrikam.com';
+    expect(cacheUtils.isGhes()).toBeTruthy();
   });
 });

__tests__/data/.go-version

@@ -0,0 +1 @@
+1.22.4

__tests__/data/.tool-versions

@@ -0,0 +1 @@
+golang 1.23.2

__tests__/data/go.mod

@@ -1,6 +1,6 @@
 module example.com/mymodule
 
-go 1.14
+go 1.20
 
 require (
 	example.com/othermodule v1.2.3

__tests__/data/go.work

@@ -1,3 +1,3 @@
-go 1.19
+go 1.21
 
 use .

__tests__/utils.test.ts

@@ -0,0 +1,52 @@
+import {isSelfHosted} from '../src/utils';
+
+describe('utils', () => {
+  describe('isSelfHosted', () => {
+    let AGENT_ISSELFHOSTED: string | undefined;
+    let RUNNER_ENVIRONMENT: string | undefined;
+
+    beforeEach(() => {
+      AGENT_ISSELFHOSTED = process.env['AGENT_ISSELFHOSTED'];
+      delete process.env['AGENT_ISSELFHOSTED'];
+      RUNNER_ENVIRONMENT = process.env['RUNNER_ENVIRONMENT'];
+      delete process.env['RUNNER_ENVIRONMENT'];
+    });
+
+    afterEach(() => {
+      if (AGENT_ISSELFHOSTED === undefined) {
+        delete process.env['AGENT_ISSELFHOSTED'];
+      } else {
+        process.env['AGENT_ISSELFHOSTED'] = AGENT_ISSELFHOSTED;
+      }
+      if (RUNNER_ENVIRONMENT === undefined) {
+        delete process.env['RUNNER_ENVIRONMENT'];
+      } else {
+        process.env['RUNNER_ENVIRONMENT'] = RUNNER_ENVIRONMENT;
+      }
+    });
+
+    it('isSelfHosted should be true if no environment variables set', () => {
+      expect(isSelfHosted()).toBeTruthy();
+    });
+
+    it('isSelfHosted should be true if environment variable is not set to denote GitHub hosted', () => {
+      process.env['RUNNER_ENVIRONMENT'] = 'some';
+      expect(isSelfHosted()).toBeTruthy();
+    });
+
+    it('isSelfHosted should be true if environment variable set to denote Azure Pipelines self hosted', () => {
+      process.env['AGENT_ISSELFHOSTED'] = '1';
+      expect(isSelfHosted()).toBeTruthy();
+    });
+
+    it('isSelfHosted should be false if environment variable set to denote GitHub hosted', () => {
+      process.env['RUNNER_ENVIRONMENT'] = 'github-hosted';
+      expect(isSelfHosted()).toBeFalsy();
+    });
+
+    it('isSelfHosted should be false if environment variable is not set to denote Azure Pipelines self hosted', () => {
+      process.env['AGENT_ISSELFHOSTED'] = 'some';
+      expect(isSelfHosted()).toBeFalsy();
+    });
+  });
+});

__tests__/windows-toolcache.test.ts

@@ -0,0 +1,62 @@
+import fs from 'fs';
+import * as io from '@actions/io';
+import * as tc from '@actions/tool-cache';
+import path from 'path';
+
+describe('Windows performance workaround', () => {
+  let mkdirSpy: jest.SpyInstance;
+  let symlinkSpy: jest.SpyInstance;
+  let statSpy: jest.SpyInstance;
+  let readdirSpy: jest.SpyInstance;
+  let writeFileSpy: jest.SpyInstance;
+  let rmRFSpy: jest.SpyInstance;
+  let mkdirPSpy: jest.SpyInstance;
+  let cpSpy: jest.SpyInstance;
+
+  let runnerToolCache: string | undefined;
+  beforeEach(() => {
+    mkdirSpy = jest.spyOn(fs, 'mkdir');
+    symlinkSpy = jest.spyOn(fs, 'symlinkSync');
+    statSpy = jest.spyOn(fs, 'statSync');
+    readdirSpy = jest.spyOn(fs, 'readdirSync');
+    writeFileSpy = jest.spyOn(fs, 'writeFileSync');
+    rmRFSpy = jest.spyOn(io, 'rmRF');
+    mkdirPSpy = jest.spyOn(io, 'mkdirP');
+    cpSpy = jest.spyOn(io, 'cp');
+
+    // default implementations
+    // @ts-ignore - not implement unused methods
+    statSpy.mockImplementation(() => ({
+      isDirectory: () => true
+    }));
+    readdirSpy.mockImplementation(() => []);
+    writeFileSpy.mockImplementation(() => {});
+    mkdirSpy.mockImplementation(() => {});
+    symlinkSpy.mockImplementation(() => {});
+    rmRFSpy.mockImplementation(() => Promise.resolve());
+    mkdirPSpy.mockImplementation(() => Promise.resolve());
+    cpSpy.mockImplementation(() => Promise.resolve());
+
+    runnerToolCache = process.env['RUNNER_TOOL_CACHE'];
+  });
+  afterEach(() => {
+    jest.clearAllMocks();
+    process.env['RUNNER_TOOL_CACHE'] = runnerToolCache;
+  });
+  // cacheWindowsToolkitDir depends on implementation of tc.cacheDir
+  // with the assumption that target dir is passed by RUNNER_TOOL_CACHE environment variable
+  // Make sure the implementation has not been changed
+  it('addExecutablesToCache should depend on env[RUNNER_TOOL_CACHE]', async () => {
+    process.env['RUNNER_TOOL_CACHE'] = '/faked-hostedtoolcache1';
+    const cacheDir1 = await tc.cacheDir('/qzx', 'go', '1.2.3', 'arch');
+    expect(cacheDir1).toBe(
+      path.join('/', 'faked-hostedtoolcache1', 'go', '1.2.3', 'arch')
+    );
+
+    process.env['RUNNER_TOOL_CACHE'] = '/faked-hostedtoolcache2';
+    const cacheDir2 = await tc.cacheDir('/qzx', 'go', '1.2.3', 'arch');
+    expect(cacheDir2).toBe(
+      path.join('/', 'faked-hostedtoolcache2', 'go', '1.2.3', 'arch')
+    );
+  });
+});

action.yml

@@ -3,29 +3,31 @@ description: 'Setup a Go environment and add it to the PATH'
 author: 'GitHub'
 inputs:
   go-version:
-    description: 'The Go version to download (if necessary) and use. Supports semver spec and ranges.'
+    description: 'The Go version to download (if necessary) and use. Supports semver spec and ranges. Be sure to enclose this option in single quotation marks.'
   go-version-file:
-    description: 'Path to the go.mod or go.work file.'
+    description: 'Path to the go.mod, go.work, .go-version, or .tool-versions file.'
   check-latest:
     description: 'Set this option to true if you want the action to always check for the latest available version that satisfies the version spec'
     default: false
   token:
-    description: Used to pull node distributions from go-versions. Since there's a default, this is typically not supplied by the user. When running this action on github.com, the default value is sufficient. When running on GHES, you can pass a personal access token for github.com if you are experiencing rate limiting.
+    description: Used to pull Go distributions from go-versions. Since there's a default, this is typically not supplied by the user. When running this action on github.com, the default value is sufficient. When running on GHES, you can pass a personal access token for github.com if you are experiencing rate limiting.
     default: ${{ github.server_url == 'https://github.com' && github.token || '' }}
   cache:
     description: Used to specify whether caching is needed. Set to true, if you'd like to enable caching.
-    default: false
+    default: true
   cache-dependency-path:
-    description: 'Used to specify the path to a dependency file - go.sum'
+    description: 'Used to specify the path to a dependency file (e.g., go.mod, go.sum)'
   architecture:
     description: 'Target architecture for Go to use. Examples: x86, x64. Will use system architecture by default.'
+  go-download-base-url:
+    description: 'Custom base URL for downloading Go distributions. Use this to download Go from a mirror or custom source. Defaults to "https://go.dev/dl". Can also be set via the GO_DOWNLOAD_BASE_URL environment variable. The input takes precedence over the environment variable.'
 outputs:
   go-version:
     description: 'The installed Go version. Useful when given a version range as input.'
   cache-hit:
     description: 'A boolean value to indicate if a cache was hit'
 runs:
-  using: 'node16'
+  using: 'node24'
   main: 'dist/setup/index.js'
   post: 'dist/cache-save/index.js'
   post-if: success()

docs/adrs/0000-caching-dependencies.md

@@ -4,7 +4,7 @@ Date: 2022-04-13
 Status: Accepted
 
 # Context
-`actions/setup-go` is the one of the most popular action related to Golang in GitHub Actions. Many customers use it in conjunction with [actions/cache](https://github.com/actions/cache) to speed up dependency installation process.  
+`actions/setup-go` is the one of the most popular action related to Golang in GitHub Actions. Many customers use it in conjunction with [actions/cache](https://github.com/actions/cache) to speed up dependency installation process.
 See more examples on proper usage in [actions/cache documentation](https://github.com/actions/cache/blob/main/examples.md#go---modules).
 
 # Goals & Anti-Goals
@@ -16,7 +16,7 @@ Integration of caching functionality into `actions/setup-go` action will bring t
 We don't pursue the goal to provide wide customization of caching in scope of `actions/setup-go` action. The purpose of this integration is covering ~90% of basic use-cases. If user needs flexible customization, we should advice them to use `actions/cache` directly.
 
 # Decision
-- Add `cache` input parameter to `actions/setup-go`. For now, input will accept the following values: 
+- Add `cache` input parameter to `actions/setup-go`. For now, input will accept the following values:
   - `true` - enable caching for go dependencies
   - `false`- disable caching for go dependencies. This value will be set as default value
 - Cache feature will be disabled by default to make sure that we don't break existing customers. We will consider enabling cache by default in next major releases
@@ -32,7 +32,7 @@ We don't pursue the goal to provide wide customization of caching in scope of `a
 
 ```yml
 steps:
-- uses: actions/checkout@v3
+- uses: actions/checkout@v4
 - uses: actions/setup-go@v3
   with:
     go-version: '18'
@@ -43,7 +43,7 @@ steps:
 
  ```yml
 steps:
-- uses: actions/checkout@v3
+- uses: actions/checkout@v4
 - uses: actions/setup-go@v3
   with:
     go-version: '18'
@@ -53,7 +53,7 @@ steps:
 
  ```yml
 steps:
-- uses: actions/checkout@v3
+- uses: actions/checkout@v4
 - uses: actions/setup-go@v3
   with:
     go-version: '18'
@@ -66,4 +66,4 @@ steps:
 # Release process
 
 As soon as functionality is implemented, we will release minor update of action. No need to bump major version since there are no breaking changes for existing users.
-After that, we will update [starter-workflows](https://github.com/actions/starter-workflows/blob/main/ci/go.yml)
+After that, we will update [starter-workflows](https://github.com/actions/starter-workflows/blob/main/ci/go.yml)

docs/advanced-usage.md

@@ -0,0 +1,498 @@
+# Advanced Usage
+- [Using the go-version input](advanced-usage.md#using-the-go-version-input)
+  - [Specifying a go version](advanced-usage.md#specifying-a-go-version)
+  - [Matrix testing](advanced-usage.md#matrix-testing)
+- [Using the go-version-file input](advanced-usage.md#using-the-go-version-file-input)
+- [Check latest version](advanced-usage.md#check-latest-version)
+- [Caching](advanced-usage.md#caching)
+  - [Caching in monorepos](advanced-usage.md#caching-in-monorepos)
+  - [Caching in multi-module repositories](advanced-usage.md#caching-in-multi-module-repositories)
+  - [Multi-target builds](advanced-usage.md#multi-target-builds)
+  - [Cache invalidation on source changes](advanced-usage.md#cache-invalidation-on-source-changes)
+  - [Restore-only caches](advanced-usage.md#restore-only-caches)
+  - [Parallel builds](advanced-usage.md#parallel-builds)
+- [Outputs](advanced-usage.md#outputs)
+- [Custom download URL](advanced-usage.md#custom-download-url)
+- [Using `setup-go` on GHES](advanced-usage.md#using-setup-go-on-ghes)
+
+## Using the `go-version` input
+
+### Specifying a Go version
+
+For repeatable builds, specify the **exact major, minor, and patch version** (such as `1.25.5`):
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25.5'
+  - run: go run hello.go
+```
+
+- The only downside is that setup may take a little longer. If the exact version is not already installed on the runner due to more recent versions, the exact version will have to be downloaded.
+
+You can specify **only a major and minor version** if you are okay with the most recent patch version being used:
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25'
+  - run: go run hello.go
+```
+
+- There will be a single patch version already installed on each runner for every minor version of Go that is supported.
+- The preinstalled patch version is generally the latest available. When a new patch is released, it replaces the previously preinstalled version on the runner.
+- Using the most recent patch version speeds up setup because the required Go version is already installed on the runner and no download is needed.
+
+To try a **pre-release**:
+Download and use beta or RC Go versions as needed.
+
+```yaml
+# RC version
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25.0-rc.2'
+  - run: go version
+```
+
+```yaml
+# Beta version
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.19.0-beta.1'
+  - run: go version
+```
+
+Using **stable/oldstable aliases**:
+
+If `stable` is provided, the action will get the latest stable version from the [`go-versions`](https://github.com/actions/go-versions/blob/main/versions-manifest.json) repository manifest.
+
+If `oldstable` is provided, the action resolves it to the latest patch release of the previous stable Go minor version (for example, if the latest stable is `1.25.x`, `oldstable` resolves to `1.24.x`, where `x` is the latest patch release).
+
+**Note:** Using these aliases will result in the same version as when using the corresponding minor release with the `check-latest` input set to `true`.  
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: 'stable'
+  - run: go run hello.go
+```
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: 'oldstable'
+  - run: go run hello.go
+```
+
+You can also use **SemVer's version range syntax**, for instance:
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '^1.25.1'
+  - run: go version
+```
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '>=1.24.0-rc.1'
+  - run: go version
+```
+
+### Matrix testing
+
+Using `setup-go` it's possible to use the [matrix syntax](https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstrategymatrix) to install several versions of Go:
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go: [ '1.24', '1.25' ]
+    name: Go ${{ matrix.go }} sample
+    steps:
+      - uses: actions/checkout@v6
+      - name: Setup go
+        uses: actions/setup-go@v6
+        with:
+          go-version: ${{ matrix.go }}
+      - run: go run hello.go
+```
+
+Exclude a specific Go version:
+
+```yaml
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        go: [ '1.22', '1.24', '1.25']
+        exclude:
+          - os: macos-latest
+            go: '1.22'
+          - os: windows-latest
+            go: '1.25'
+    steps:
+      - uses: actions/checkout@v6
+      - name: Setup go
+        uses: actions/setup-go@v6
+        with:
+          go-version: ${{ matrix.go }}
+      - run: go run hello.go
+```
+
+## Using the `go-version-file` input
+
+`setup-go` action can read the Go version from a version file. `go-version-file` input is used for specifying the path to the version file. If the file supplied to the `go-version-file` input doesn't exist, the action will fail with an error. This input supports go.mod, go.work, .go-version, and .tool-versions files.
+
+If both the `go-version` and the `go-version-file` inputs are provided then the `go-version` input is used. The `.tool-versions` file supports version specifications in accordance with asdf standards, adhering to Semantic Versioning ([semver](https://semver.org)).
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version-file: 'path/to/go.mod'  # Read Go version from go.mod
+  - run: go version
+```
+
+- Uses the `toolchain` directive if present, otherwise the action falls back to the `go` directive.
+
+- The `go` directive in `go.mod` can specify a patch version or omit it altogether (e.g., `go 1.25.0` or `go 1.25`). If a patch version is specified, that specific patch version will be used. If no patch version is specified, it will search for the latest available patch version in the cache,
+[versions-manifest.json](https://github.com/actions/go-versions/blob/main/versions-manifest.json), and the
+[official Go language website](https://go.dev/dl/?mode=json&include=all), in that order.
+
+> The action will search for the `go.mod` file relative to the repository root.
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version-file: '.go-version' # Read Go version from .go-version
+  - run: go version
+```
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version-file: '.tool-versions' # Read Go version from .tool-versions
+  - run: go version
+```
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version-file: 'go.work' # Read Go version from go.work
+  - run: go version
+```
+
+## Check latest version
+
+The `check-latest` flag defaults to `false`. Use the default or set `check-latest` to `false` if you prefer stability
+and if you want to ensure a specific Go version is always used.
+
+If `check-latest` is set to `true`, the action first checks if the cached version is the latest one. If the locally
+cached version is not the most up-to-date, a Go version will then be downloaded. Set `check-latest` to `true` if you
+want the most up-to-date Go version to always be used. It supports major (e.g., "1") and major.minor (e.g., "1.25") version selectors, always resolving to the latest matching patch release.
+
+> Setting `check-latest` to `true` has performance implications as downloading Go versions is slower than using cached
+> versions.
+>
+> `check-latest` is ignored when `go-download-base-url` is set. See [Custom download URL](#custom-download-url) for details.
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25'
+      check-latest: true
+  - run: go run hello.go
+```
+
+## Caching
+ 
+### Caching in monorepos
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25'
+      cache-dependency-path: subdir/go.sum
+  - run: go run hello.go
+```
+
+### Caching in multi-module repositories
+
+`cache-dependency-path` input accepts glob patterns and multi-line values:
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25'
+      cache-dependency-path: '**/go.sum'
+  - run: go run hello.go
+```
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25'
+      cache-dependency-path: |
+        subdir/go.sum
+        tools/go.sum
+  - run: go run hello.go
+```
+
+### Multi-target builds
+
+`cache-dependency-path` isn’t limited to dependency files (like `go.sum`). It can also include files that capture build settings (for example, `GOOS`/`GOARCH`). This allows separate caches per target platform (OS/architecture) and helps avoid reusing caches across incompatible builds.
+
+```yaml
+env:
+  GOOS: ...
+  GOARCH: ...
+
+steps:
+  - run: echo "$GOOS $GOARCH" > env.txt
+
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25'
+      cache-dependency-path: |
+        go.sum
+        env.txt
+  - run: go run hello.go    
+```
+
+### Cache invalidation on source changes
+
+Besides dependencies, the action can also cache build outputs (the [`GOCACHE`](https://pkg.go.dev/cmd/go#hdr-Build_and_test_caching) directory). By default, this cache is not updated based on source changes to help avoid unpredictable and frequent cache invalidation. To invalidate the cache when source files change, include source files in the `cache-dependency-path` input.
+
+> **Note:** Including patterns like `**/*.go` can create new caches on many commits, increasing cache storage and potentially slowing workflows due to more frequent uploads/downloads.
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25'
+      cache-dependency-path: |
+        go.sum
+        **/*.go
+  - run: go run hello.go
+```
+
+### Restore-only caches
+
+Restore caches without saving new entries. This can help reduce cache writes and storage usage in workflows that only need to read from the cache:
+
+```yaml
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    steps:
+      - uses: actions/checkout@v6
+      - name: Setup go
+        id: setup-go
+        uses: actions/setup-go@v6
+        with:
+          go-version: '1.25.5'
+          cache: false
+      # Capture Go cache locations
+      - name: Set Go cache variables (Linux/macOS)
+        if: runner.os != 'Windows'
+        run: |
+          echo "GO_MOD_CACHE=$(go env GOMODCACHE)" >> $GITHUB_ENV
+          echo "GO_BUILD_CACHE=$(go env GOCACHE)" >> $GITHUB_ENV
+      - name: Set Go cache variables (Windows)
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          echo "GO_MOD_CACHE=$(go env GOMODCACHE)" | Out-File $env:GITHUB_ENV -Append
+          echo "GO_BUILD_CACHE=$(go env GOCACHE)"   | Out-File $env:GITHUB_ENV -Append
+      # Normalize runner.arch to lowercase to ensure consistent cache keys
+      - name: Normalize runner architecture (Linux/macOS)
+        if: runner.os != 'Windows'
+        shell: bash
+        run: echo "ARCH=$(echo '${{ runner.arch }}' | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV
+      - name: Normalize runner architecture (Windows)
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          $arch = "${{ runner.arch }}".ToLower()
+          echo "ARCH=$arch" | Out-File $env:GITHUB_ENV -Append
+      - name: Set cache OS suffix for Linux
+        if: runner.os == 'Linux'
+        shell: bash
+        run: echo "CACHE_OS_SUFFIX=$ImageOS-" >> $GITHUB_ENV
+      - name: Restore Go cache
+        id: go-cache
+        uses: actions/cache/restore@v5
+        with:
+          path: |
+            ${{ env.GO_MOD_CACHE }}
+            ${{ env.GO_BUILD_CACHE }}
+          key: setup-go-${{ runner.os }}-${{ env.ARCH }}-${{ env.CACHE_OS_SUFFIX }}go-${{ steps.setup-go.outputs.go-version }}-${{ hashFiles('**/go.mod') }}
+      - name: Download modules
+        run: go mod download
+      - name: Build
+        run: go build ./...
+```
+
+> If there are several builds on the same repo, it may make sense to create a cache in one build and use it in others. The action [actions/cache/restore](https://github.com/actions/cache/tree/main/restore#only-restore-cache)
+should be used in this case.
+
+### Parallel builds
+
+To avoid race conditions during parallel builds, either use distinct cache keys with [actions/cache](https://github.com/actions/cache/blob/main/examples.md#go---modules), or create the cache in only one build and [restore](#restore-only-caches) it in the other builds.
+
+## Outputs
+
+### `go-version`
+
+Using **go-version** output, it's possible to get the precise Go version installed by the action. This output is useful when the input `go-version` is given as a range, but down the line you need to operate (such as in an `if:` statement) with the exact installed version (e.g. 1.24.11). 
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-go@v6
+        id: go124
+        with:
+          go-version: '^1.24'
+      - run: echo "Installed Go version: ${{ steps.go124.outputs.go-version }}"
+```
+
+### `cache-hit`
+
+**cache-hit** output is available with a boolean value that indicates whether a cache hit occurred on the primary key:
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-go@v6
+        id: go124
+        with:
+          go-version: '1.24'
+          cache: true
+      - run: echo "Was the Go cache restored? ${{ steps.go124.outputs.cache-hit }}" # true if cache-hit occurred
+```
+
+## Custom download URL
+
+The `go-download-base-url` input lets you download Go from a mirror or alternative source instead of the default `https://go.dev/dl`. This can also be set via the `GO_DOWNLOAD_BASE_URL` environment variable; the input takes precedence over the environment variable.
+
+When a custom base URL is provided, the action skips the `actions/go-versions` manifest lookup and downloads directly from the specified URL.
+
+**Using the [Microsoft build of Go](https://github.com/microsoft/go):**
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25'
+      go-download-base-url: 'https://aka.ms/golang/release/latest'
+  - run: go version
+```
+
+**Using an environment variable:**
+
+```yaml
+env:
+  GO_DOWNLOAD_BASE_URL: 'https://aka.ms/golang/release/latest'
+
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25'
+  - run: go version
+```
+
+> **Note:** Version range syntax (`^1.25`, `~1.24`, `>=1.25.0`) and aliases (`stable`, `oldstable`) are not supported with custom download URLs. Use exact versions such as `1.25`, `1.25.0`, or `1.25.0-1` (for sources that use revision numbers). If the custom server provides a version listing endpoint (`/?mode=json&include=all`), semver ranges will work; otherwise only exact versions are accepted.
+
+> **Note:** The `check-latest` option is ignored when a custom download base URL is set. The action cannot query the custom server for the latest version, so it uses the version you specify directly. If you provide a partial version like `1.25`, the server determines which patch release to serve.
+
+**Authenticated downloads:**
+
+If your custom download source requires authentication, the `token` input is forwarded as an `Authorization` header. For example, to download from a private mirror:
+
+```yaml
+steps:
+  - uses: actions/checkout@v6
+  - uses: actions/setup-go@v6
+    with:
+      go-version: '1.25'
+      go-download-base-url: 'https://private-mirror.example.com/golang'
+      token: ${{ secrets.MIRROR_TOKEN }}
+  - run: go version
+```
+
+## Using `setup-go` on GHES
+
+### Avoiding rate limit issues
+
+`setup-go` comes pre-installed on the appliance with GHES if Actions is enabled.
+When dynamically downloading Go distributions, `setup-go` downloads distributions from [`actions/go-versions`](https://github.com/actions/go-versions) on github.com (outside of the appliance).
+
+These calls to `actions/go-versions` are made via unauthenticated requests, which are limited to [60 requests per hour per IP](https://docs.github.com/en/rest/overview/resources-in-the-rest-api#rate-limiting).
+If more requests are made within the time frame, then the action leverages the `raw API` to retrieve the version-manifest. This approach does not impose a rate limit and hence facilitates unrestricted consumption. This is particularly beneficial for GHES runners, which often share the same IP, to avoid the quick exhaustion of the unauthenticated rate limit.
+If that fails as well the action will try to download versions directly from [go.dev](https://go.dev/dl).
+
+If that fails as well you can get a higher rate limit with [generating a personal access token on github.com](https://github.com/settings/tokens/new) and passing it as the `token` input to the action:
+
+```yaml
+uses: actions/setup-go@v6
+with:
+  token: ${{ secrets.GH_DOTCOM_TOKEN }}
+  go-version: '1.25'
+```
+
+### No access to github.com
+
+If the runner is not able to access github.com, any Go versions requested during a workflow run must come from the runner's tool cache.
+See "[Setting up the tool cache on self-hosted runners without internet access](https://docs.github.com/en/enterprise-server@3.2/admin/github-actions/managing-access-to-actions-from-githubcom/setting-up-the-tool-cache-on-self-hosted-runners-without-internet-access)"
+for more information.

docs/contributors.md

@@ -6,13 +6,13 @@ We have prepared a short guide so that the process of making your contribution i
 
 ## How can I contribute...
 
-* [Contribute Documentation:green_book:](#contribute-documentation)
+* [Contribute Documentation :green_book:](#contribute-documentation)
 
 * [Contribute Code :computer:](#contribute-code)
 
-* [Provide Support on Issues:pencil:](#provide-support-on-issues)
+* [Provide Support on Issues :pencil:](#provide-support-on-issues)
 
-* [Review Pull Requests:mag:](#review-pull-requests)
+* [Review Pull Requests :mag:](#review-pull-requests)
 
 ## Contribute documentation
 
@@ -52,7 +52,7 @@ Pull requests are the easiest way to contribute changes to git repos at GitHub.
 
 - Please check that no one else has already created a pull request with these changes
 - Use a "feature branch" for your changes. That separates the changes in the pull request from your other changes and makes it easy to edit/amend commits in the pull request
--  **Run `pre-checkin` script to format, build and test changes**
+-  **Run `pre-checkin` script to format, lint, build and test changes**
 - Make sure your changes are well formatted and that all tests are passing
 - If your pull request is connected to an open issue, please, leave a link to this issue in the `Related issue:` section
 - If you later need to add new commits to the pull request, you can simply commit the changes to the local branch and then push them. The pull request gets automatically updated
@@ -61,6 +61,7 @@ Pull requests are the easiest way to contribute changes to git repos at GitHub.
 
 - To implement new features or fix bugs, you need to make changes to the `.ts` files, which are located in the `src` folder
 - To comply with the code style, **you need to run the `format` script**
+- To lint the code, **you need to run the `lint:fix` script**
 - To transpile source code to `javascript` we use [NCC](https://github.com/vercel/ncc). **It is very important to run the `build` script after making changes**, otherwise your changes will not get into the final `javascript` build
 - You can also start formatting, building code, and testing with a single `pre-checkin` command
 
@@ -112,4 +113,4 @@ Another great way to contribute is pull request reviews. Please, be extra kind:
 - Make sure you're familiar with the code or documentation is updated, unless it's a minor change (spellchecking, minor formatting, etc.)
 - Review changes using the GitHub functionality. You can ask a clarifying question, point out an error or suggest an alternative. 
 > Note: You may ask for minor changes - "nitpicks", but consider whether they are real blockers to merging or not
-- Submit your review, which may include comments, an approval, or a changes request
+- Submit your review, which may include comments, an approval, or a changes request