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

.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/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/workflows/basic-validation.yml

@@ -15,4 +15,4 @@ jobs:
     name: Basic validation
     uses: actions/reusable-workflows/.github/workflows/basic-validation.yml@main
     with:
-      node-version: '20'
+      node-version: '24.x'

.github/workflows/check-dist.yml

@@ -16,4 +16,4 @@ jobs:
     name: Check dist/
     uses: actions/reusable-workflows/.github/workflows/check-dist.yml@main
     with:
-      node-version: '20'
+      node-version: '24.x'

.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

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

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Update the ${{ env.TAG_NAME }} tag
-        uses: actions/publish-action@v0.3.0
+        uses: actions/publish-action@v0.4.0
         with:
           source-tag: ${{ env.TAG_NAME }}
           slack-webhook: ${{ secrets.SLACK_WEBHOOK }}

.github/workflows/versions.yml

@@ -18,9 +18,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup Go Stable
         uses: ./
         with:
@@ -33,9 +33,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup Go oldStable
         uses: ./
         with:
@@ -48,16 +48,16 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
         version: [stable, oldstable]
         architecture: [x64, x32]
         exclude:
           - os: macos-latest
             architecture: x32
-          - os: macos-13
+          - os: macos-latest-large
             architecture: x32
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup Go ${{ matrix.version }} ${{ matrix.architecture }}
         uses: ./
         with:
@@ -72,7 +72,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-latest, macos-13]
+        os: [macos-latest, windows-latest, ubuntu-latest, macos-latest-large]
         go: [1.21.13, 1.22.8, 1.23.2]
         include:
           - os: windows-latest
@@ -82,7 +82,7 @@ jobs:
             go: 1.23.2
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: setup-go ${{ matrix.go }}
         uses: ./
@@ -98,10 +98,10 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
         go-version: ['1.20', '1.21', '1.22', '1.23']
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup Go and check latest
         uses: ./
         with:
@@ -115,9 +115,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup Go and check latest
         uses: ./
         with:
@@ -131,9 +131,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-large]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup Go and check latest
         uses: ./
         with:
@@ -142,16 +142,48 @@ jobs:
         run: __tests__/verify-go.sh 1.21
         shell: bash
 
+  go-version-file-with-tool-versions:
+    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 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-13]
+        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@v4
+        uses: actions/checkout@v6
 
       - name: setup-go ${{ matrix.go }}
         uses: ./
@@ -167,11 +199,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-latest, ubuntu-latest, macos-13]
+        os: [windows-latest, ubuntu-latest, macos-latest-large]
         go: [1.11.12]
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: setup-go ${{ matrix.go }}
         uses: ./
@@ -187,7 +219,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
+        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
@@ -196,10 +228,10 @@ jobs:
             architecture: x64
           - os: windows-latest
             architecture: x64
-          - os: macos-13
+          - os: macos-latest-large
             architecture: x64
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup Go and check latest
         uses: ./
         with:

.github/workflows/windows-validation.yml

@@ -19,7 +19,7 @@ jobs:
         cache: [false, true]
         go: [1.20.1]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: 'Setup ${{ matrix.cache }}, cache: ${{ matrix.go }}'
         uses: ./
@@ -88,7 +88,7 @@ jobs:
       matrix:
         cache: [false, true]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: 'Setup default go, cache: ${{ matrix.cache }}'
         uses: ./
@@ -121,7 +121,7 @@ jobs:
         cache: [false]
         go: [1.20.1]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: 'Setup ${{ matrix.go }}, cache: ${{ matrix.cache }}'
         uses: ./

.licensed.yml

@@ -13,3 +13,4 @@ allowed:
 
 reviewed:
   npm:
+     - "@actions/http-client"

README.md

@@ -3,68 +3,96 @@
 [![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`.
+- Optionally downloading and caching a version of Go by version and adding it to the PATH
-- Registering problem matchers for error output.
+- Optionally caching Go modules and build outputs
+- Registering problem matchers for error output
 
-# V5
+## Breaking changes in V6
 
-The V5 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)
 
-- Upgraded Node.js runtime from node16 to node20
+- **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.
+
+- **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.
 
 See full release notes on the [releases page](https://github.com/actions/setup-go/releases).
 
-# V4
+## Usage
 
-The V4 edition of the action offers:
+See [action.yml](action.yml).
 
- - Enabled caching by default
+<!-- start usage -->
+```yaml
+- uses: actions/setup-go@v6
+  with:
+    # Version or version range of Go to use
+    go-version: '1.23'
     
-The action will try to enable caching unless the `cache` input is explicitly set to false.
+    # 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'
     
-Please see "[Caching dependency files and build outputs](https://github.com/actions/setup-go#caching-dependency-files-and-build-outputs)" for more information.
+    # Set this option if you want the action to check for the latest available version
+    # Default: false
+    check-latest: false
     
-# V3
+    # GitHub token for authentication
+    token: ${{ github.token }}
     
-The V3 edition of the action offers:
+    # Used to specify whether caching is needed.
+    # Default: true
+    cache: true
     
-- Adds `GOBIN` to the `PATH`
+    # Path to dependency files for caching
-- Proxy support
+    cache-dependency-path: 'go.sum'
-- Check latest version
-- Caching packages dependencies
-- stable and oldstable aliases
-- Bug Fixes (including issues around version matching and semver)
     
-The action will first check the local cache for a version match. If a version is not found locally, it will pull it from
+    # Architecture to install (auto-detected if not specified)
-the `main` branch of the [go-versions](https://github.com/actions/go-versions/blob/main/versions-manifest.json)
+    architecture: 'x64'
-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).
     
-**Note:** The `setup-go` action uses executable binaries which are built by Golang side. The action does not build
+    # Custom base URL for Go downloads (e.g., for mirrors)
-golang from source code.
+    go-download-base-url: ''
+```
+<!-- end usage -->
 
-Matching by [semver spec](https://github.com/npm/node-semver):
+**Basic:**
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
+  - uses: actions/checkout@v6
-  - uses: actions/setup-go@v5
+  - uses: actions/setup-go@v6
     with:
-      go-version: '^1.13.1' # The Go version to download (if necessary) and use.
+      go-version: '1.25' # The Go version to download (if necessary) and use.
-  - run: go version
+  - run: go run hello.go
 ```
 
-```yaml
+**Version resolution behavior:**
-steps:
+
-  - uses: actions/checkout@v4
+The action resolves the requested version in the following order:
-  - uses: actions/setup-go@v5
+1. **Local cache** - Checks the local tool cache for a matching [semver](https://github.com/npm/node-semver#versions) version.
-    with:
+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).
-      go-version: '>=1.17.0'
+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).
-  - run: go version
+
-```
+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: `1.25`, `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 details on Semantic Versioning, see [the semver package documentation](https://github.com/npm/node-semver).
 
 > **Note**: Due to the peculiarities of YAML parsing, it is recommended to wrap the version in single quotation marks:
 >
@@ -72,195 +100,9 @@ steps:
 >   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.
+> 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.
 
-Matching an unstable pre-release:
+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.
-
-```yaml
-steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
-    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@v4
-  - uses: actions/setup-go@v5
-    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@v4
-  - uses: actions/setup-go@v5
-    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@v4
-  - uses: actions/setup-go@v5
-    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@v4
-  - uses: actions/setup-go@v5
-    with:
-      go-version: 'stable'
-  - run: go run hello.go
-```
-
-```yaml
-steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
-    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 [toolkit/cache](https://github.com/actions/toolkit/tree/main/packages/cache) under the hood but requires less configuration settings.
-The `cache` input is optional, and caching is turned on 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. The input supports glob patterns.
-
-If some problem that prevents success caching happens then the action issues the warning in the log and continues the execution of the pipeline.
-
-**Caching in monorepos**
-
-```yaml
-steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
-    with:
-      go-version: '1.17'
-      check-latest: true
-      cache-dependency-path: |
-             subdir/go.sum
-             tools/go.sum
-    # cache-dependency-path: "**/*.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.
-
-The `go` directive in `go.mod` can specify a patch version or omit it altogether (e.g., `go 1.22.0` or `go 1.22`).  
-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://golang.org/dl/?mode=json&include=all), in that order.
-
-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@v4
-  - uses: actions/setup-go@v5
-    with:
-      go-version-file: 'path/to/go.mod'
-  - run: go version
-```
-
-## Matrix testing
-
-```yaml
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        go: [ '1.14', '1.13' ]
-    name: Go ${{ matrix.go }} sample
-    steps:
-      - uses: actions/checkout@v4
-      - name: Setup go
-        uses: actions/setup-go@v5
-        with:
-          go-version: ${{ matrix.go }}
-      - run: go run hello.go
-```
-
-### 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`
-
-For more information about semantic versioning, please refer to [semver](https://github.com/npm/node-semver)
-documentation.
-
-## Using `setup-go` on GHES
-
-`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 https://storage.googleapis.com/golang.
-
-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@v5
-with:
-  token: ${{ secrets.GH_DOTCOM_TOKEN }}
-  go-version: '1.18'
-```
-
-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.
 
 ## Recommended permissions
 
@@ -271,13 +113,36 @@ permissions:
   contents: read # access to check out code and install dependencies
 ```
 
-# License
+## Caching dependency files and build outputs
 
-The scripts and documentation in this project are released under the [MIT License](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`.
 
-# Contributions
+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 are welcome! See [Contributor's Guide](docs/contributors.md)
+If caching cannot be performed for any reason, the action logs a warning and continues workflow execution.
+
+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

@@ -1,93 +1,82 @@
 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.SpyInstance;
-  const hashFilesSpy = jest.spyOn(glob, 'hashFiles');
+  let getCacheDirectoryPathSpy: jest.SpyInstance;
-  const getCacheDirectoryPathSpy = jest.spyOn(
+  let restoreCacheSpy: jest.SpyInstance;
-    cacheUtils,
+  let infoSpy: jest.SpyInstance;
-    'getCacheDirectoryPath'
+  let setOutputSpy: jest.SpyInstance;
-  );
-  const restoreCacheSpy = jest.spyOn(cache, 'restoreCache');
-  const infoSpy = jest.spyOn(core, 'info');
-  const setOutputSpy = jest.spyOn(core, 'setOutput');
 
   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 => {
+        return Promise.resolve([
-          resolve(['cache_directory_path', 'cache_directory_path']);
+          'cache_directory_path',
-        });
+          'cache_directory_path'
+        ]);
       }
     );
   });
 
-  it('should throw if dependency file path is not valid', async () => {
+  afterEach(() => {
-    //Arrange
+    process.env.GITHUB_WORKSPACE = originalWorkspace;
-    hashFilesSpy.mockImplementation((somePath: string) => {
+    jest.restoreAllMocks();
-      return new Promise<string>(resolve => {
-        resolve('');
-      });
   });
 
+  it('should throw if dependency file path is not valid', async () => {
+    // Arrange
+    hashFilesSpy.mockImplementation(() => Promise.resolve(''));
     // Act + Assert
-    await expect(async () => {
+    await expect(
-      await cacheRestore.restoreCache(
+      cacheRestore.restoreCache(
         versionSpec,
         packageManager,
         cacheDependencyPath
-      );
+      )
-    }).rejects.toThrow(
+    ).rejects.toThrow(
       'Some specified paths were not resolved, unable to cache dependencies.'
     );
   });
 
-  it('should inform if cache hit is not occured', async () => {
+  it('should inform if cache hit is not occurred', async () => {
     // Arrange
-    hashFilesSpy.mockImplementation((somePath: string) => {
+    hashFilesSpy.mockImplementation(() => Promise.resolve('file_hash'));
-      return new Promise<string>(resolve => {
+    restoreCacheSpy.mockImplementation(() => Promise.resolve(''));
-        resolve('file_hash');
-      });
-    });
-
-    restoreCacheSpy.mockImplementation(() => {
-      return new Promise<string>(resolve => {
-        resolve('');
-      });
-    });
-
     // Act + Assert
     await cacheRestore.restoreCache(
       versionSpec,
       packageManager,
       cacheDependencyPath
     );
-    expect(infoSpy).toHaveBeenCalledWith(`Cache is not found`);
+    expect(infoSpy).toHaveBeenCalledWith('Cache is not found');
   });
 
-  it('should set output if cache hit is occured', async () => {
+  it('should set output if cache hit is occurred', async () => {
     // Arrange
-    hashFilesSpy.mockImplementation((somePath: string) => {
+    hashFilesSpy.mockImplementation(() => Promise.resolve('file_hash'));
-      return new Promise<string>(resolve => {
+    restoreCacheSpy.mockImplementation(() => Promise.resolve('cache_key'));
-        resolve('file_hash');
-      });
-    });
-
-    restoreCacheSpy.mockImplementation(() => {
-      return new Promise<string>(resolve => {
-        resolve('cache_key');
-      });
-    });
-
     // Act + Assert
     await cacheRestore.restoreCache(
       versionSpec,
@@ -96,4 +85,18 @@ describe('restoreCache', () => {
     );
     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

@@ -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']
     };
 
@@ -73,7 +73,7 @@ describe('getCacheDirectoryPath', () => {
   const getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
 
   const validPackageManager: PackageManagerInfo = {
-    dependencyFilePattern: 'go.sum',
+    dependencyFilePattern: 'go.mod',
     cacheFolderCommandList: ['go env GOMODCACHE', 'go env GOCACHE']
   };