Merge remote-tracking branch 'upstream/main' into feature/go-file-version

* upstream/main: (47 commits)
  Fix Install on Windows is very slow (#393)
  Bump word-wrap from 1.2.3 to 1.2.4
  Fix licensing for Semver 6.3.1
  Rebuild after updating Semver
  Bump semver from 6.3.0 to 6.3.1
  Bump tough-cookie and @azure/ms-rest-js (#392)
  Limit to Linux only
  Add imageOS to primaryKey
  Add note about YAML parsing versions (#382)
  Added a description that go-version should be specified as a string type (#367)
  Update action.yml (#379)
  Move eslint-plugin-node to dev dependencies
  Install eslint-plugin-node
  Update configuration files
  Bump @actions/cache dependency to v3.2.1 (#374)
  Update xml2js (#370)
  Fix glob bug in package.json scripts section (#359)
  update README fo v4 (#354)
  Update configuration files (#348)
  Add Go bin if go-version input is empty (#351)
  ...

.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/workflows/basic-validation.yml

@@ -0,0 +1,16 @@
+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

.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:
@@ -17,35 +12,6 @@ on:
   workflow_dispatch:
 
 jobs:
-  check-dist:
+  call-check-dist:
-    runs-on: ubuntu-latest
+    name: Check dist/
-
+    uses: actions/reusable-workflows/.github/workflows/check-dist.yml@main
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Set Node.js 16.x
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16.x
-
-      - 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@v3
-        if: ${{ failure() && steps.diff.conclusion == 'failure' }}
-        with:
-          name: dist
-          path: dist/

.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:
+  call-licensed:
-    runs-on: ubuntu-latest
+    name: Licensed
-    name: Check licenses
+    uses: actions/reusable-workflows/.github/workflows/licensed.yml@main
-    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

.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@v0.2.2
         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:
@@ -12,6 +13,57 @@ on:
     - cron: 0 0 * * *
 
 jobs:
+  stable:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Go Stable
+        uses: ./
+        with:
+          go-version: stable
+      - name: Verify Go
+        run: go version
+
+  oldstable:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    steps:
+      - uses: actions/checkout@v3
+      - 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]
+        version: [stable, oldstable]
+        architecture: [x64, x32]
+        exclude:
+          - os: macos-latest
+            architecture: x32
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Go ${{ matrix.version }} ${{ matrix.architecture }}
+        uses: ./
+        with:
+          go-version: ${{ matrix.version }}
+          architecture: ${{ matrix.architecture }}
+      - name: Verify Go
+        run: go version
+
   local-cache:
     name: Setup local-cache version
     runs-on: ${{ matrix.os }}

.github/workflows/windows-validation.yml

@@ -0,0 +1,114 @@
+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@v3
+
+      - 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@v3
+
+      - 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

.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'

.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

@@ -1,6 +1,6 @@
 # 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:
@@ -8,6 +8,16 @@ This action sets up a go environment for use in actions by:
 - Optionally downloading and caching a version of Go by version and adding to `PATH`.
 - Registering problem matchers for error output.
 
+# V4
+
+The V4 edition of the action offers:
+
+ - Enabled caching by default
+
+The action will try to enable caching unless the `cache` input is explicitly set to false.
+
+Please see "[Caching dependency files and build outputs](https://github.com/actions/setup-go#caching-dependency-files-and-build-outputs)" for more information.
+
 # V3
 
 The V3 edition of the action offers:
@@ -16,18 +26,24 @@ The V3 edition of the action offers:
 - Proxy support
 - 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 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).
+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).
 
-**Note:** The `setup-go` action uses executable binaries which are built by Golang side. The action does not build golang from source code.
+**Note:** The `setup-go` action uses executable binaries which are built by Golang side. The action does not build
+golang from source code.
 
 Matching by [semver spec](https://github.com/npm/node-semver):
 
 ```yaml
 steps:
   - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
+  - uses: actions/setup-go@v4
     with:
       go-version: '^1.13.1' # The Go version to download (if necessary) and use.
   - run: go version
@@ -36,18 +52,25 @@ steps:
 ```yaml
 steps:
   - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
+  - uses: actions/setup-go@v4
     with:
       go-version: '>=1.17.0'
   - run: go version
 ```
 
+> **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.
 Matching an unstable pre-release:
 
 ```yaml
 steps:
   - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
+  - uses: actions/setup-go@v4
     with:
       go-version: '1.18.0-rc.1' # The Go version to download (if necessary) and use.
   - run: go version
@@ -56,7 +79,7 @@ steps:
 ```yaml
 steps:
   - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
+  - uses: actions/setup-go@v4
     with:
       go-version: '1.16.0-beta.1' # The Go version to download (if necessary) and use.
   - run: go version
@@ -71,57 +94,84 @@ See [action.yml](action.yml)
 ```yaml
 steps:
   - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
+  - uses: actions/setup-go@v4
     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.
+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.
+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.
+> 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
+  - uses: actions/setup-go@v4
     with:
       go-version: '1.14'
       check-latest: true
   - 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.
+## Using stable/oldstable aliases
 
-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.
+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`
 
-**Caching without specifying dependency file path**
 ```yaml
 steps:
   - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
+  - uses: actions/setup-go@v4
     with:
-      go-version: '1.17'
+      go-version: 'stable'
-      check-latest: true
-      cache: true
   - run: go run hello.go
 ```
 
-**Caching in monorepos**
 ```yaml
 steps:
   - uses: actions/checkout@v3
-  - uses: actions/setup-go@v3
+  - uses: actions/setup-go@v4
+    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.
+
+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@v3
+  - uses: actions/setup-go@v4
     with:
       go-version: '1.17'
       check-latest: true
-      cache: true
       cache-dependency-path: subdir/go.sum
   - run: go run hello.go
   ```
@@ -139,11 +189,11 @@ The `go-version-file` input accepts a path to a `go.mod` file or a `go.work` fil
 
 ```yaml
 steps:
-- uses: actions/checkout@v3
+  - uses: actions/checkout@v3
-- uses: actions/setup-go@v3
+  - uses: actions/setup-go@v4
-  with:
+    with:
-    go-version-file: 'path/to/go.mod'
+      go-version-file: 'path/to/go.mod'
-- run: go version
+  - run: go version
 ```
 
 ### If a different file
@@ -174,7 +224,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Setup go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go }}
       - run: go run hello.go
@@ -187,22 +237,35 @@ 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.
+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 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.
+`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.
 
-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:
+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:
 
 ```yaml
-uses: actions/setup-go@v3
+uses: actions/setup-go@v4
 with:
   token: ${{ secrets.GH_DOTCOM_TOKEN }}
-  go-version: 1.18
+  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.
+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.
 
 # License
 

__tests__/cache-restore.test.ts

@@ -8,14 +8,14 @@ import {PackageManagerInfo} from '../src/package-managers';
 
 describe('restoreCache', () => {
   //Arrange
-  let hashFilesSpy = jest.spyOn(glob, 'hashFiles');
+  const hashFilesSpy = jest.spyOn(glob, 'hashFiles');
-  let getCacheDirectoryPathSpy = jest.spyOn(
+  const getCacheDirectoryPathSpy = jest.spyOn(
     cacheUtils,
     'getCacheDirectoryPath'
   );
-  let restoreCacheSpy = jest.spyOn(cache, 'restoreCache');
+  const restoreCacheSpy = jest.spyOn(cache, 'restoreCache');
-  let infoSpy = jest.spyOn(core, 'info');
+  const infoSpy = jest.spyOn(core, 'info');
-  let setOutputSpy = jest.spyOn(core, 'setOutput');
+  const setOutputSpy = jest.spyOn(core, 'setOutput');
 
   const versionSpec = '1.13.1';
   const packageManager = 'default';
@@ -40,13 +40,13 @@ describe('restoreCache', () => {
     });
 
     //Act + Assert
-    expect(async () => {
+    await expect(async () => {
       await cacheRestore.restoreCache(
         versionSpec,
         packageManager,
         cacheDependencyPath
       );
-    }).rejects.toThrowError(
+    }).rejects.toThrow(
       'Some specified paths were not resolved, unable to cache dependencies.'
     );
   });
@@ -71,7 +71,7 @@ describe('restoreCache', () => {
       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 () => {
@@ -94,6 +94,6 @@ describe('restoreCache', () => {
       packageManager,
       cacheDependencyPath
     );
-    expect(setOutputSpy).toBeCalledWith('cache-hit', true);
+    expect(setOutputSpy).toHaveBeenCalledWith('cache-hit', true);
   });
 });

__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();
   });
@@ -62,7 +62,7 @@ describe('getPackageManagerInfo', () => {
     const packageManagerName = 'invalidName';
 
     //Act + Assert
-    expect(async () => {
+    await expect(async () => {
       await cacheUtils.getPackageManagerInfo(packageManagerName);
     }).rejects.toThrow();
   });
@@ -70,7 +70,7 @@ describe('getPackageManagerInfo', () => {
 
 describe('getCacheDirectoryPath', () => {
   //Arrange
-  let getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
+  const getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
 
   const validPackageManager: PackageManagerInfo = {
     dependencyFilePattern: 'go.sum',
@@ -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');
+  const isFeatureAvailableSpy = jest.spyOn(cache, 'isFeatureAvailable');
-  let warningSpy = jest.spyOn(core, 'warning');
+  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 +201,11 @@ 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);
   });
 });

__tests__/setup-go.test.ts

@@ -3,18 +3,20 @@ import * as io from '@actions/io';
 import * as tc from '@actions/tool-cache';
 import fs from 'fs';
 import cp from 'child_process';
-import osm from 'os';
+import osm, {type} from 'os';
 import path from 'path';
 import * as main from '../src/main';
 import * as im from '../src/installer';
 
-let goJsonData = require('./data/golang-dl.json');
+import goJsonData from './data/golang-dl.json';
-let matchers = require('../matchers.json');
+import matchers from '../matchers.json';
-let goTestManifest = require('./data/versions-manifest.json');
+import goTestManifest from './data/versions-manifest.json';
-let matcherPattern = matchers.problemMatcher[0].pattern[0];
+const matcherPattern = matchers.problemMatcher[0].pattern[0];
-let matcherRegExp = new RegExp(matcherPattern.regexp);
+const matcherRegExp = new RegExp(matcherPattern.regexp);
-let win32Join = path.win32.join;
+const win32Join = path.win32.join;
-let posixJoin = path.posix.join;
+const posixJoin = path.posix.join;
+
+jest.setTimeout(10000);
 
 describe('setup-go', () => {
   let inputs = {} as any;
@@ -39,8 +41,11 @@ describe('setup-go', () => {
   let existsSpy: jest.SpyInstance;
   let readFileSpy: jest.SpyInstance;
   let mkdirpSpy: jest.SpyInstance;
+  let mkdirSpy: jest.SpyInstance;
+  let symlinkSpy: jest.SpyInstance;
   let execSpy: jest.SpyInstance;
   let getManifestSpy: jest.SpyInstance;
+  let getAllVersionsSpy: jest.SpyInstance;
 
   beforeAll(async () => {
     process.env['GITHUB_ENV'] = ''; // Stub out Environment file functionality so we can verify it writes to standard out (toolkit is backwards compatible)
@@ -83,6 +88,7 @@ describe('setup-go', () => {
     cacheSpy = jest.spyOn(tc, 'cacheDir');
     getSpy = jest.spyOn(im, 'getVersionsDist');
     getManifestSpy = jest.spyOn(tc, 'getManifestFromRepo');
+    getAllVersionsSpy = jest.spyOn(im, 'getManifest');
 
     // io
     whichSpy = jest.spyOn(io, 'which');
@@ -90,6 +96,11 @@ describe('setup-go', () => {
     readFileSpy = jest.spyOn(fs, 'readFileSync');
     mkdirpSpy = jest.spyOn(io, 'mkdirP');
 
+    // fs
+    mkdirSpy = jest.spyOn(fs, 'mkdir');
+    symlinkSpy = jest.spyOn(fs, 'symlinkSync');
+    symlinkSpy.mockImplementation(() => {});
+
     // gets
     getManifestSpy.mockImplementation(() => <tc.IToolRelease[]>goTestManifest);
 
@@ -131,7 +142,7 @@ describe('setup-go', () => {
     os.platform = 'darwin';
     os.arch = 'x64';
 
-    let match = await im.getInfoFromManifest('1.9.7', true, 'mocktoken');
+    const match = await im.getInfoFromManifest('1.9.7', true, 'mocktoken');
     expect(match).toBeDefined();
     expect(match!.resolvedVersion).toBe('1.9.7');
     expect(match!.type).toBe('manifest');
@@ -144,7 +155,7 @@ describe('setup-go', () => {
     os.platform = 'linux';
     os.arch = 'x64';
 
-    let match = await im.getInfoFromManifest('1.9.7', true, 'mocktoken');
+    const match = await im.getInfoFromManifest('1.9.7', true, 'mocktoken');
     expect(match).toBeDefined();
     expect(match!.resolvedVersion).toBe('1.9.7');
     expect(match!.type).toBe('manifest');
@@ -157,7 +168,7 @@ describe('setup-go', () => {
     os.platform = 'win32';
     os.arch = 'x64';
 
-    let match = await im.getInfoFromManifest('1.9.7', true, 'mocktoken');
+    const match = await im.getInfoFromManifest('1.9.7', true, 'mocktoken');
     expect(match).toBeDefined();
     expect(match!.resolvedVersion).toBe('1.9.7');
     expect(match!.type).toBe('manifest');
@@ -171,11 +182,11 @@ describe('setup-go', () => {
     os.arch = 'x64';
 
     // spec: 1.13.0 => 1.13
-    let match: im.IGoVersion | undefined = await im.findMatch('1.13.0');
+    const match: im.IGoVersion | undefined = await im.findMatch('1.13.0');
     expect(match).toBeDefined();
-    let version: string = match ? match.version : '';
+    const version: string = match ? match.version : '';
     expect(version).toBe('go1.13');
-    let fileName = match ? match.files[0].filename : '';
+    const fileName = match ? match.files[0].filename : '';
     expect(fileName).toBe('go1.13.darwin-amd64.tar.gz');
   });
 
@@ -184,11 +195,11 @@ describe('setup-go', () => {
     os.arch = 'x64';
 
     // spec: 1.13 => 1.13.7 (latest)
-    let match: im.IGoVersion | undefined = await im.findMatch('1.13');
+    const match: im.IGoVersion | undefined = await im.findMatch('1.13');
     expect(match).toBeDefined();
-    let version: string = match ? match.version : '';
+    const version: string = match ? match.version : '';
     expect(version).toBe('go1.13.7');
-    let fileName = match ? match.files[0].filename : '';
+    const fileName = match ? match.files[0].filename : '';
     expect(fileName).toBe('go1.13.7.linux-amd64.tar.gz');
   });
 
@@ -197,11 +208,11 @@ describe('setup-go', () => {
     os.arch = 'x64';
 
     // spec: ^1.13.6 => 1.13.7
-    let match: im.IGoVersion | undefined = await im.findMatch('^1.13.6');
+    const match: im.IGoVersion | undefined = await im.findMatch('^1.13.6');
     expect(match).toBeDefined();
-    let version: string = match ? match.version : '';
+    const version: string = match ? match.version : '';
     expect(version).toBe('go1.13.7');
-    let fileName = match ? match.files[0].filename : '';
+    const fileName = match ? match.files[0].filename : '';
     expect(fileName).toBe('go1.13.7.linux-amd64.tar.gz');
   });
 
@@ -210,11 +221,11 @@ describe('setup-go', () => {
     os.arch = 'x32';
 
     // spec: 1 => 1.13.7 (latest)
-    let match: im.IGoVersion | undefined = await im.findMatch('1');
+    const match: im.IGoVersion | undefined = await im.findMatch('1');
     expect(match).toBeDefined();
-    let version: string = match ? match.version : '';
+    const version: string = match ? match.version : '';
     expect(version).toBe('go1.13.7');
-    let fileName = match ? match.files[0].filename : '';
+    const fileName = match ? match.files[0].filename : '';
     expect(fileName).toBe('go1.13.7.windows-386.zip');
   });
 
@@ -223,11 +234,11 @@ describe('setup-go', () => {
     os.arch = 'x64';
 
     // spec: 1.14, stable=false => go1.14rc1
-    let match: im.IGoVersion | undefined = await im.findMatch('1.14.0-rc.1');
+    const match: im.IGoVersion | undefined = await im.findMatch('1.14.0-rc.1');
     expect(match).toBeDefined();
-    let version: string = match ? match.version : '';
+    const version: string = match ? match.version : '';
     expect(version).toBe('go1.14rc1');
-    let fileName = match ? match.files[0].filename : '';
+    const fileName = match ? match.files[0].filename : '';
     expect(fileName).toBe('go1.14rc1.linux-amd64.tar.gz');
   });
 
@@ -235,7 +246,7 @@ describe('setup-go', () => {
     inputs['go-version'] = '1.13.0';
     inputs.stable = 'true';
 
-    let toolPath = path.normalize('/cache/go/1.13.0/x64');
+    const toolPath = path.normalize('/cache/go/1.13.0/x64');
     findSpy.mockImplementation(() => toolPath);
     await main.run();
 
@@ -247,7 +258,7 @@ describe('setup-go', () => {
 
     inSpy.mockImplementation(name => inputs[name]);
 
-    let toolPath = path.normalize('/cache/go/1.13.0/x64');
+    const toolPath = path.normalize('/cache/go/1.13.0/x64');
     findSpy.mockImplementation(() => toolPath);
     await main.run();
 
@@ -258,10 +269,10 @@ describe('setup-go', () => {
     inputs['go-version'] = '1.13.0';
     inSpy.mockImplementation(name => inputs[name]);
 
-    let toolPath = path.normalize('/cache/go/1.13.0/x64');
+    const toolPath = path.normalize('/cache/go/1.13.0/x64');
     findSpy.mockImplementation(() => toolPath);
 
-    let vars: {[key: string]: string} = {};
+    const vars: {[key: string]: string} = {};
     exportVarSpy.mockImplementation((name: string, val: string) => {
       vars[name] = val;
     });
@@ -274,10 +285,10 @@ describe('setup-go', () => {
     inputs['go-version'] = '1.8';
     inSpy.mockImplementation(name => inputs[name]);
 
-    let toolPath = path.normalize('/cache/go/1.8.0/x64');
+    const toolPath = path.normalize('/cache/go/1.8.0/x64');
     findSpy.mockImplementation(() => toolPath);
 
-    let vars: {[key: string]: string} = {};
+    const vars: {[key: string]: string} = {};
     exportVarSpy.mockImplementation((name: string, val: string) => {
       vars[name] = val;
     });
@@ -291,7 +302,7 @@ describe('setup-go', () => {
   it('finds a version of go already in the cache', async () => {
     inputs['go-version'] = '1.13.0';
 
-    let toolPath = path.normalize('/cache/go/1.13.0/x64');
+    const toolPath = path.normalize('/cache/go/1.13.0/x64');
     findSpy.mockImplementation(() => toolPath);
     await main.run();
 
@@ -300,16 +311,16 @@ describe('setup-go', () => {
 
   it('finds a version in the cache and adds it to the path', async () => {
     inputs['go-version'] = '1.13.0';
-    let toolPath = path.normalize('/cache/go/1.13.0/x64');
+    const toolPath = path.normalize('/cache/go/1.13.0/x64');
     findSpy.mockImplementation(() => toolPath);
     await main.run();
 
-    let expPath = path.join(toolPath, 'bin');
+    const expPath = path.join(toolPath, 'bin');
     expect(cnSpy).toHaveBeenCalledWith(`::add-path::${expPath}${osm.EOL}`);
   });
 
   it('handles unhandled error and reports error', async () => {
-    let errMsg = 'unhandled error message';
+    const errMsg = 'unhandled error message';
     inputs['go-version'] = '1.13.0';
 
     findSpy.mockImplementation(() => {
@@ -327,12 +338,12 @@ describe('setup-go', () => {
 
     findSpy.mockImplementation(() => '');
     dlSpy.mockImplementation(() => '/some/temp/path');
-    let toolPath = path.normalize('/cache/go/1.13.0/x64');
+    const toolPath = path.normalize('/cache/go/1.13.0/x64');
     extractTarSpy.mockImplementation(() => '/some/other/temp/path');
     cacheSpy.mockImplementation(() => toolPath);
     await main.run();
 
-    let expPath = path.join(toolPath, 'bin');
+    const expPath = path.join(toolPath, 'bin');
 
     expect(dlSpy).toHaveBeenCalled();
     expect(extractTarSpy).toHaveBeenCalled();
@@ -350,12 +361,12 @@ describe('setup-go', () => {
     dlSpy.mockImplementation(() => 'C:\\temp\\some\\path');
     extractZipSpy.mockImplementation(() => 'C:\\temp\\some\\other\\path');
 
-    let toolPath = path.normalize('C:\\cache\\go\\1.13.0\\x64');
+    const toolPath = path.normalize('C:\\cache\\go\\1.13.0\\x64');
     cacheSpy.mockImplementation(() => toolPath);
 
     await main.run();
 
-    let expPath = path.win32.join(toolPath, 'bin');
+    const expPath = path.win32.join(toolPath, 'bin');
     expect(dlSpy).toHaveBeenCalledWith(
       'https://storage.googleapis.com/golang/go1.13.1.windows-amd64.zip',
       'C:\\temp\\go1.13.1.windows-amd64.zip',
@@ -382,25 +393,25 @@ describe('setup-go', () => {
     os.platform = 'linux';
     os.arch = 'x64';
 
-    let versionSpec = '1.12.16';
+    const versionSpec = '1.12.16';
 
     inputs['go-version'] = versionSpec;
     inputs['token'] = 'faketoken';
 
-    let expectedUrl =
+    const expectedUrl =
       'https://github.com/actions/go-versions/releases/download/1.12.16-20200616.20/go-1.12.16-linux-x64.tar.gz';
 
     // ... but not in the local cache
     findSpy.mockImplementation(() => '');
 
     dlSpy.mockImplementation(async () => '/some/temp/path');
-    let toolPath = path.normalize('/cache/go/1.12.16/x64');
+    const toolPath = path.normalize('/cache/go/1.12.16/x64');
     extractTarSpy.mockImplementation(async () => '/some/other/temp/path');
     cacheSpy.mockImplementation(async () => toolPath);
 
     await main.run();
 
-    let expPath = path.join(toolPath, 'bin');
+    const expPath = path.join(toolPath, 'bin');
 
     expect(dlSpy).toHaveBeenCalled();
     expect(extractTarSpy).toHaveBeenCalled();
@@ -419,25 +430,25 @@ describe('setup-go', () => {
     os.platform = 'linux';
     os.arch = 'x64';
 
-    let versionSpec = '1.12';
+    const versionSpec = '1.12';
 
     inputs['go-version'] = versionSpec;
     inputs['token'] = 'faketoken';
 
-    let expectedUrl =
+    const expectedUrl =
       'https://github.com/actions/go-versions/releases/download/1.12.17-20200616.21/go-1.12.17-linux-x64.tar.gz';
 
     // ... but not in the local cache
     findSpy.mockImplementation(() => '');
 
     dlSpy.mockImplementation(async () => '/some/temp/path');
-    let toolPath = path.normalize('/cache/go/1.12.17/x64');
+    const toolPath = path.normalize('/cache/go/1.12.17/x64');
     extractTarSpy.mockImplementation(async () => '/some/other/temp/path');
     cacheSpy.mockImplementation(async () => toolPath);
 
     await main.run();
 
-    let expPath = path.join(toolPath, 'bin');
+    const expPath = path.join(toolPath, 'bin');
 
     expect(dlSpy).toHaveBeenCalled();
     expect(extractTarSpy).toHaveBeenCalled();
@@ -456,7 +467,7 @@ describe('setup-go', () => {
     os.platform = 'linux';
     os.arch = 'x64';
 
-    let versionSpec = '1.12.14';
+    const versionSpec = '1.12.14';
 
     inputs['go-version'] = versionSpec;
     inputs['token'] = 'faketoken';
@@ -465,13 +476,13 @@ describe('setup-go', () => {
     findSpy.mockImplementation(() => '');
 
     dlSpy.mockImplementation(async () => '/some/temp/path');
-    let toolPath = path.normalize('/cache/go/1.12.14/x64');
+    const toolPath = path.normalize('/cache/go/1.12.14/x64');
     extractTarSpy.mockImplementation(async () => '/some/other/temp/path');
     cacheSpy.mockImplementation(async () => toolPath);
 
     await main.run();
 
-    let expPath = path.join(toolPath, 'bin');
+    const expPath = path.join(toolPath, 'bin');
     expect(logSpy).toHaveBeenCalledWith('Setup go version spec 1.12.14');
     expect(findSpy).toHaveBeenCalled();
     expect(logSpy).toHaveBeenCalledWith('Attempting to download 1.12.14...');
@@ -487,7 +498,7 @@ describe('setup-go', () => {
   });
 
   it('reports a failed download', async () => {
-    let errMsg = 'unhandled download message';
+    const errMsg = 'unhandled download message';
     os.platform = 'linux';
     os.arch = 'x64';
 
@@ -508,7 +519,7 @@ describe('setup-go', () => {
     whichSpy.mockImplementation(async () => {
       return '';
     });
-    let added = await main.addBinToPath();
+    const added = await main.addBinToPath();
     expect(added).toBeFalsy();
   });
 
@@ -526,8 +537,8 @@ describe('setup-go', () => {
       return false;
     });
 
-    let added = await main.addBinToPath();
+    const added = await main.addBinToPath();
-    expect(added).toBeTruthy;
+    expect(added).toBeTruthy();
   });
 
   interface Annotation {
@@ -541,9 +552,9 @@ describe('setup-go', () => {
   // problem matcher regex pattern tests
 
   function testMatch(line: string): Annotation {
-    let annotation = <Annotation>{};
+    const annotation = <Annotation>{};
 
-    let match = matcherRegExp.exec(line);
+    const match = matcherRegExp.exec(line);
     if (match) {
       annotation.line = parseInt(match[matcherPattern.line], 10);
       annotation.column = parseInt(match[matcherPattern.column], 10);
@@ -555,8 +566,8 @@ describe('setup-go', () => {
   }
 
   it('matches on relative unix path', async () => {
-    let line = './main.go:13:2: undefined: fmt.Printl';
+    const line = './main.go:13:2: undefined: fmt.Printl';
-    let annotation = testMatch(line);
+    const annotation = testMatch(line);
     expect(annotation).toBeDefined();
     expect(annotation.line).toBe(13);
     expect(annotation.column).toBe(2);
@@ -565,8 +576,8 @@ describe('setup-go', () => {
   });
 
   it('matches on unix path up the tree', async () => {
-    let line = '../main.go:13:2: undefined: fmt.Printl';
+    const line = '../main.go:13:2: undefined: fmt.Printl';
-    let annotation = testMatch(line);
+    const annotation = testMatch(line);
     expect(annotation).toBeDefined();
     expect(annotation.line).toBe(13);
     expect(annotation.column).toBe(2);
@@ -575,8 +586,8 @@ describe('setup-go', () => {
   });
 
   it('matches on unix path down the tree', async () => {
-    let line = 'foo/main.go:13:2: undefined: fmt.Printl';
+    const line = 'foo/main.go:13:2: undefined: fmt.Printl';
-    let annotation = testMatch(line);
+    const annotation = testMatch(line);
     expect(annotation).toBeDefined();
     expect(annotation.line).toBe(13);
     expect(annotation.column).toBe(2);
@@ -585,8 +596,8 @@ describe('setup-go', () => {
   });
 
   it('matches on rooted unix path', async () => {
-    let line = '/assert.go:4:1: missing return at end of function';
+    const line = '/assert.go:4:1: missing return at end of function';
-    let annotation = testMatch(line);
+    const annotation = testMatch(line);
     expect(annotation).toBeDefined();
     expect(annotation.line).toBe(4);
     expect(annotation.column).toBe(1);
@@ -595,8 +606,8 @@ describe('setup-go', () => {
   });
 
   it('matches on unix path with spaces', async () => {
-    let line = '   ./assert.go:5:2: missing return at end of function   ';
+    const line = '   ./assert.go:5:2: missing return at end of function   ';
-    let annotation = testMatch(line);
+    const annotation = testMatch(line);
     expect(annotation).toBeDefined();
     expect(annotation.line).toBe(5);
     expect(annotation.column).toBe(2);
@@ -605,8 +616,8 @@ describe('setup-go', () => {
   });
 
   it('matches on unix path with tabs', async () => {
-    let line = '\t./assert.go:5:2: missing return at end of function   ';
+    const line = '\t./assert.go:5:2: missing return at end of function   ';
-    let annotation = testMatch(line);
+    const annotation = testMatch(line);
     expect(annotation).toBeDefined();
     expect(annotation.line).toBe(5);
     expect(annotation.column).toBe(2);
@@ -615,8 +626,8 @@ describe('setup-go', () => {
   });
 
   it('matches on relative windows path', async () => {
-    let line = '.\\main.go:13:2: undefined: fmt.Printl';
+    const line = '.\\main.go:13:2: undefined: fmt.Printl';
-    let annotation = testMatch(line);
+    const annotation = testMatch(line);
     expect(annotation).toBeDefined();
     expect(annotation.line).toBe(13);
     expect(annotation.column).toBe(2);
@@ -625,8 +636,8 @@ describe('setup-go', () => {
   });
 
   it('matches on windows path up the tree', async () => {
-    let line = '..\\main.go:13:2: undefined: fmt.Printl';
+    const line = '..\\main.go:13:2: undefined: fmt.Printl';
-    let annotation = testMatch(line);
+    const annotation = testMatch(line);
     expect(annotation).toBeDefined();
     expect(annotation.line).toBe(13);
     expect(annotation.column).toBe(2);
@@ -700,7 +711,7 @@ describe('setup-go', () => {
 
       findSpy.mockImplementation(() => '');
       dlSpy.mockImplementation(async () => '/some/temp/path');
-      const toolPath = path.normalize('/cache/go/1.17.5/x64');
+      const toolPath = path.normalize('/cache/go/1.17.6/x64');
       extractTarSpy.mockImplementation(async () => '/some/other/temp/path');
       cacheSpy.mockImplementation(async () => toolPath);
 
@@ -728,7 +739,7 @@ describe('setup-go', () => {
       os.platform = 'linux';
       os.arch = 'x64';
 
-      let versionSpec = '1.13';
+      const versionSpec = '1.13';
 
       inputs['go-version'] = versionSpec;
       inputs['check-latest'] = true;
@@ -739,13 +750,13 @@ describe('setup-go', () => {
       findSpy.mockImplementation(() => '');
 
       dlSpy.mockImplementation(async () => '/some/temp/path');
-      let toolPath = path.normalize('/cache/go/1.13.7/x64');
+      const toolPath = path.normalize('/cache/go/1.13.7/x64');
       extractTarSpy.mockImplementation(async () => '/some/other/temp/path');
       cacheSpy.mockImplementation(async () => toolPath);
 
       await main.run();
 
-      let expPath = path.join(toolPath, 'bin');
+      const expPath = path.join(toolPath, 'bin');
 
       expect(dlSpy).toHaveBeenCalled();
       expect(extractTarSpy).toHaveBeenCalled();
@@ -765,7 +776,7 @@ describe('setup-go', () => {
       os.platform = 'linux';
       os.arch = 'x64';
 
-      let versionSpec = '1.13';
+      const versionSpec = '1.13';
 
       process.env['GITHUB_PATH'] = '';
 
@@ -779,15 +790,16 @@ describe('setup-go', () => {
       getManifestSpy.mockImplementation(() => {
         throw new Error('Unable to download manifest');
       });
+      getAllVersionsSpy.mockImplementationOnce(() => undefined);
 
       dlSpy.mockImplementation(async () => '/some/temp/path');
-      let toolPath = path.normalize('/cache/go/1.13.7/x64');
+      const toolPath = path.normalize('/cache/go/1.13.7/x64');
       extractTarSpy.mockImplementation(async () => '/some/other/temp/path');
       cacheSpy.mockImplementation(async () => toolPath);
 
       await main.run();
 
-      let expPath = path.join(toolPath, 'bin');
+      const expPath = path.join(toolPath, 'bin');
 
       expect(logSpy).toHaveBeenCalledWith(
         `Failed to resolve version ${versionSpec} from manifest`
@@ -907,7 +919,7 @@ use .
         inputs['go-version'] = version;
         inputs['architecture'] = arch;
 
-        let expectedUrl =
+        const expectedUrl =
           platform === 'win32'
             ? `https://github.com/actions/go-versions/releases/download/${version}/go-${version}-${platform}-${arch}.${fileExtension}`
             : `https://storage.googleapis.com/golang/go${version}.${osSpec}-${arch}.${fileExtension}`;
@@ -916,7 +928,7 @@ use .
         findSpy.mockImplementation(() => '');
 
         dlSpy.mockImplementation(async () => '/some/temp/path');
-        let toolPath = path.normalize(`/cache/go/${version}/${arch}`);
+        const toolPath = path.normalize(`/cache/go/${version}/${arch}`);
         cacheSpy.mockImplementation(async () => toolPath);
 
         await main.run();
@@ -926,5 +938,32 @@ use .
         );
       }
     }, 100000);
+
+    it.each(['stable', 'oldstable'])(
+      'acquires latest go version with %s go-version input',
+      async (alias: string) => {
+        const arch = 'x64';
+        os.platform = 'darwin';
+        os.arch = arch;
+
+        inputs['go-version'] = alias;
+        inputs['architecture'] = os.arch;
+
+        // ... but not in the local cache
+        findSpy.mockImplementation(() => '');
+
+        dlSpy.mockImplementation(async () => '/some/temp/path');
+        const toolPath = path.normalize(`/cache/go/${alias}/${arch}`);
+        cacheSpy.mockImplementation(async () => toolPath);
+
+        await main.run();
+
+        const releaseIndex = alias === 'stable' ? 0 : 1;
+
+        expect(logSpy).toHaveBeenCalledWith(
+          `${alias} version resolved as ${goTestManifest[releaseIndex].version}`
+        );
+      }
+    );
   });
 });

__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

@@ -3,18 +3,18 @@ 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.'
   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'
   architecture:

docs/contributors.md

@@ -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
 

package.json

@@ -1,15 +1,17 @@
 {
   "name": "setup-go",
-  "version": "3.3.0",
+  "version": "4.0.0",
   "private": true,
   "description": "setup go action",
   "main": "lib/setup-go.js",
   "scripts": {
     "build": "tsc && ncc build -o dist/setup src/setup-go.ts && ncc build -o dist/cache-save src/cache-save.ts",
-    "format": "prettier --write **/*.ts",
+    "format": "prettier --no-error-on-unmatched-pattern --config ./.prettierrc.js --write \"**/*.{ts,yml,yaml}\"",
-    "format-check": "prettier --check **/*.ts",
+    "format-check": "prettier --no-error-on-unmatched-pattern --config ./.prettierrc.js --check \"**/*.{ts,yml,yaml}\"",
+    "lint": "eslint --config ./.eslintrc.js \"**/*.ts\"",
+    "lint:fix": "eslint --config ./.eslintrc.js \"**/*.ts\" --fix",
     "test": "jest --coverage",
-    "pre-checkin": "npm run format && npm run build && npm test"
+    "pre-checkin": "npm run format && npm run lint:fix && npm run build && npm test"
   },
   "repository": {
     "type": "git",
@@ -23,25 +25,31 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
-    "@actions/cache": "^3.0.0",
+    "@actions/cache": "^3.2.1",
     "@actions/core": "^1.10.0",
     "@actions/exec": "^1.1.0",
     "@actions/glob": "^0.2.0",
     "@actions/http-client": "^2.0.1",
     "@actions/io": "^1.0.2",
     "@actions/tool-cache": "^1.5.5",
-    "semver": "^6.1.1"
+    "semver": "^6.3.1"
   },
   "devDependencies": {
     "@types/jest": "^27.0.2",
     "@types/node": "^16.11.25",
     "@types/semver": "^6.0.0",
+    "@typescript-eslint/eslint-plugin": "^5.54.0",
+    "@typescript-eslint/parser": "^5.54.0",
     "@vercel/ncc": "^0.33.4",
+    "eslint": "^8.35.0",
+    "eslint-config-prettier": "^8.6.0",
+    "eslint-plugin-jest": "^27.2.1",
+    "eslint-plugin-node": "^11.1.0",
     "jest": "^27.2.5",
     "jest-circus": "^27.2.5",
     "nock": "^10.0.6",
-    "prettier": "^1.17.1",
+    "prettier": "^2.8.4",
     "ts-jest": "^27.0.5",
-    "typescript": "^3.8.3"
+    "typescript": "^4.3.3"
   }
 }

src/cache-restore.ts

@@ -29,7 +29,9 @@ export const restoreCache = async (
     );
   }
 
-  const primaryKey = `setup-go-${platform}-go-${versionSpec}-${fileHash}`;
+  const linuxVersion =
+    process.env.RUNNER_OS === 'Linux' ? `${process.env.ImageOS}-` : '';
+  const primaryKey = `setup-go-${platform}-${linuxVersion}go-${versionSpec}-${fileHash}`;
   core.debug(`primary key is ${primaryKey}`);
 
   core.saveState(State.CachePrimaryKey, primaryKey);
@@ -48,7 +50,7 @@ export const restoreCache = async (
 };
 
 const findDependencyFile = (packageManager: PackageManagerInfo) => {
-  let dependencyFile = packageManager.dependencyFilePattern;
+  const dependencyFile = packageManager.dependencyFilePattern;
   const workspace = process.env.GITHUB_WORKSPACE!;
   const rootContent = fs.readdirSync(workspace);
 

src/cache-save.ts

@@ -23,7 +23,7 @@ export async function run() {
     if (typeof error === 'string') {
       message = error;
     }
-    core.setFailed(message);
+    core.warning(message);
   }
 }
 
@@ -59,6 +59,13 @@ const cachePackages = async () => {
     );
   }
 
+  if (!primaryKey) {
+    core.info(
+      'Primary key was not generated. Please check the log messages above for more errors or information'
+    );
+    return;
+  }
+
   if (primaryKey === state) {
     core.info(
       `Cache hit occurred on the primary key ${primaryKey}, not saving cache.`

src/cache-utils.ts

@@ -34,19 +34,29 @@ export const getPackageManagerInfo = async (packageManager: string) => {
 export const getCacheDirectoryPath = async (
   packageManagerInfo: PackageManagerInfo
 ) => {
-  let pathList = await Promise.all(
+  const pathOutputs = await Promise.allSettled(
-    packageManagerInfo.cacheFolderCommandList.map(command =>
+    packageManagerInfo.cacheFolderCommandList.map(async command =>
       getCommandOutput(command)
     )
   );
 
-  const emptyPaths = pathList.filter(item => !item);
+  const results = pathOutputs.map(item => {
+    if (item.status === 'fulfilled') {
+      return item.value;
+    } else {
+      core.info(`[warning]getting cache directory path failed: ${item.reason}`);
+    }
 
-  if (emptyPaths.length) {
+    return '';
+  });
+
+  const cachePaths = results.filter(item => item);
+
+  if (!cachePaths.length) {
     throw new Error(`Could not get cache folder paths.`);
   }
 
-  return pathList;
+  return cachePaths;
 };
 
 export function isGhes(): boolean {
@@ -57,19 +67,19 @@ export function isGhes(): boolean {
 }
 
 export function isCacheFeatureAvailable(): boolean {
-  if (!cache.isFeatureAvailable()) {
+  if (cache.isFeatureAvailable()) {
-    if (isGhes()) {
+    return true;
-      throw new Error(
+  }
-        '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.'
-      );
-    } else {
-      core.warning(
-        'The runner was not able to contact the cache service. Caching will be skipped'
-      );
-    }
 
+  if (isGhes()) {
+    core.warning(
+      '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.'
+    );
     return false;
   }
 
-  return true;
+  core.warning(
+    'The runner was not able to contact the cache service. Caching will be skipped'
+  );
+  return false;
 }

src/installer.ts

@@ -6,6 +6,7 @@ import * as httpm from '@actions/http-client';
 import * as sys from './system';
 import fs from 'fs';
 import os from 'os';
+import {StableReleaseAlias} from './utils';
 
 type InstallationType = 'dist' | 'manifest';
 
@@ -35,7 +36,34 @@ export async function getGo(
   auth: string | undefined,
   arch = os.arch()
 ) {
-  let osPlat: string = os.platform();
+  let manifest: tc.IToolRelease[] | undefined;
+  const osPlat: string = os.platform();
+
+  if (
+    versionSpec === StableReleaseAlias.Stable ||
+    versionSpec === StableReleaseAlias.OldStable
+  ) {
+    manifest = await getManifest(auth);
+    let stableVersion = await resolveStableVersionInput(
+      versionSpec,
+      arch,
+      osPlat,
+      manifest
+    );
+
+    if (!stableVersion) {
+      stableVersion = await resolveStableVersionDist(versionSpec, arch);
+      if (!stableVersion) {
+        throw new Error(
+          `Unable to find Go version '${versionSpec}' for platform ${osPlat} and architecture ${arch}.`
+        );
+      }
+    }
+
+    core.info(`${versionSpec} version resolved as ${stableVersion}`);
+
+    versionSpec = stableVersion;
+  }
 
   if (checkLatest) {
     core.info('Attempting to resolve the latest version from the manifest...');
@@ -43,7 +71,8 @@ export async function getGo(
       versionSpec,
       true,
       auth,
-      arch
+      arch,
+      manifest
     );
     if (resolvedVersion) {
       versionSpec = resolvedVersion;
@@ -54,8 +83,7 @@ export async function getGo(
   }
 
   // check cache
-  let toolPath: string;
+  const toolPath = tc.find('go', versionSpec, arch);
-  toolPath = tc.find('go', versionSpec, arch);
   // If not found in cache, download
   if (toolPath) {
     core.info(`Found in cache @ ${toolPath}`);
@@ -69,7 +97,7 @@ export async function getGo(
   // Try download from internal distribution (popular versions only)
   //
   try {
-    info = await getInfoFromManifest(versionSpec, true, auth, arch);
+    info = await getInfoFromManifest(versionSpec, true, auth, arch, manifest);
     if (info) {
       downloadPath = await installGoVersion(info, auth, arch);
     } else {
@@ -118,10 +146,17 @@ async function resolveVersionFromManifest(
   versionSpec: string,
   stable: boolean,
   auth: string | undefined,
-  arch: string
+  arch: string,
+  manifest: tc.IToolRelease[] | undefined
 ): Promise<string | undefined> {
   try {
-    const info = await getInfoFromManifest(versionSpec, stable, auth, arch);
+    const info = await getInfoFromManifest(
+      versionSpec,
+      stable,
+      auth,
+      arch,
+      manifest
+    );
     return info?.resolvedVersion;
   } catch (err) {
     core.info('Unable to resolve a version from the manifest...');
@@ -129,6 +164,64 @@ async function resolveVersionFromManifest(
   }
 }
 
+// for github hosted windows runner handle latency of OS drive
+// by avoiding write operations to C:
+async function cacheWindowsDir(
+  extPath: string,
+  tool: string,
+  version: string,
+  arch: string
+): Promise<string | false> {
+  if (os.platform() !== 'win32') return false;
+
+  // make sure the action runs in the hosted environment
+  if (
+    process.env['RUNNER_ENVIRONMENT'] !== 'github-hosted' &&
+    process.env['AGENT_ISSELFHOSTED'] === '1'
+  )
+    return false;
+
+  const defaultToolCacheRoot = process.env['RUNNER_TOOL_CACHE'];
+  if (!defaultToolCacheRoot) return false;
+
+  if (!fs.existsSync('d:\\') || !fs.existsSync('c:\\')) return false;
+
+  const actualToolCacheRoot = defaultToolCacheRoot
+    .replace('C:', 'D:')
+    .replace('c:', 'd:');
+  // make toolcache root to be on drive d:
+  process.env['RUNNER_TOOL_CACHE'] = actualToolCacheRoot;
+
+  const actualToolCacheDir = await tc.cacheDir(extPath, tool, version, arch);
+
+  // create a link from c: to d:
+  const defaultToolCacheDir = actualToolCacheDir.replace(
+    actualToolCacheRoot,
+    defaultToolCacheRoot
+  );
+  fs.mkdirSync(path.dirname(defaultToolCacheDir), {recursive: true});
+  fs.symlinkSync(actualToolCacheDir, defaultToolCacheDir, 'junction');
+  core.info(`Created link ${defaultToolCacheDir} => ${actualToolCacheDir}`);
+
+  // make outer code to continue using toolcache as if it were installed on c:
+  // restore toolcache root to default drive c:
+  process.env['RUNNER_TOOL_CACHE'] = defaultToolCacheRoot;
+  return defaultToolCacheDir;
+}
+
+async function addExecutablesToToolCache(
+  extPath: string,
+  info: IGoVersionInfo,
+  arch: string
+): Promise<string> {
+  const tool = 'go';
+  const version = makeSemver(info.resolvedVersion);
+  return (
+    (await cacheWindowsDir(extPath, tool, version, arch)) ||
+    (await tc.cacheDir(extPath, tool, version, arch))
+  );
+}
+
 async function installGoVersion(
   info: IGoVersionInfo,
   auth: string | undefined,
@@ -151,14 +244,10 @@ async function installGoVersion(
   }
 
   core.info('Adding to the cache ...');
-  const cachedDir = await tc.cacheDir(
+  const toolCacheDir = await addExecutablesToToolCache(extPath, info, arch);
-    extPath,
+  core.info(`Successfully cached go to ${toolCacheDir}`);
-    'go',
+
-    makeSemver(info.resolvedVersion),
+  return toolCacheDir;
-    arch
-  );
-  core.info(`Successfully cached go to ${cachedDir}`);
-  return cachedDir;
 }
 
 export async function extractGoArchive(archivePath: string): Promise<string> {
@@ -174,21 +263,26 @@ export async function extractGoArchive(archivePath: string): Promise<string> {
   return extPath;
 }
 
+export async function getManifest(auth: string | undefined) {
+  return tc.getManifestFromRepo('actions', 'go-versions', auth, 'main');
+}
+
 export async function getInfoFromManifest(
   versionSpec: string,
   stable: boolean,
   auth: string | undefined,
-  arch = os.arch()
+  arch = os.arch(),
+  manifest?: tc.IToolRelease[] | undefined
 ): Promise<IGoVersionInfo | null> {
   let info: IGoVersionInfo | null = null;
-  const releases = await tc.getManifestFromRepo(
+  if (!manifest) {
-    'actions',
+    core.debug('No manifest cached');
-    'go-versions',
+    manifest = await getManifest(auth);
-    auth,
+  }
-    'main'
+
-  );
   core.info(`matching ${versionSpec}...`);
-  const rel = await tc.findFromManifest(versionSpec, stable, releases, arch);
+
+  const rel = await tc.findFromManifest(versionSpec, stable, manifest, arch);
 
   if (rel && rel.files.length > 0) {
     info = <IGoVersionInfo>{};
@@ -205,13 +299,12 @@ async function getInfoFromDist(
   versionSpec: string,
   arch: string
 ): Promise<IGoVersionInfo | null> {
-  let version: IGoVersion | undefined;
+  const version: IGoVersion | undefined = await findMatch(versionSpec, arch);
-  version = await findMatch(versionSpec, arch);
   if (!version) {
     return null;
   }
 
-  let downloadUrl: string = `https://storage.googleapis.com/golang/${version.files[0].filename}`;
+  const downloadUrl = `https://storage.googleapis.com/golang/${version.files[0].filename}`;
 
   return <IGoVersionInfo>{
     type: 'dist',
@@ -225,14 +318,14 @@ export async function findMatch(
   versionSpec: string,
   arch = os.arch()
 ): Promise<IGoVersion | undefined> {
-  let archFilter = sys.getArch(arch);
+  const archFilter = sys.getArch(arch);
-  let platFilter = sys.getPlatform();
+  const platFilter = sys.getPlatform();
 
   let result: IGoVersion | undefined;
   let match: IGoVersion | undefined;
 
-  const dlUrl: string = 'https://golang.org/dl/?mode=json&include=all';
+  const dlUrl = 'https://golang.org/dl/?mode=json&include=all';
-  let candidates: IGoVersion[] | null = await module.exports.getVersionsDist(
+  const candidates: IGoVersion[] | null = await module.exports.getVersionsDist(
     dlUrl
   );
   if (!candidates) {
@@ -241,8 +334,8 @@ export async function findMatch(
 
   let goFile: IGoVersionFile | undefined;
   for (let i = 0; i < candidates.length; i++) {
-    let candidate: IGoVersion = candidates[i];
+    const candidate: IGoVersion = candidates[i];
-    let version = makeSemver(candidate.version);
+    const version = makeSemver(candidate.version);
 
     core.debug(`check ${version} satisfies ${versionSpec}`);
     if (semver.satisfies(version, versionSpec)) {
@@ -274,7 +367,7 @@ export async function getVersionsDist(
   dlUrl: string
 ): Promise<IGoVersion[] | null> {
   // this returns versions descending so latest is first
-  let http: httpm.HttpClient = new httpm.HttpClient('setup-go', [], {
+  const http: httpm.HttpClient = new httpm.HttpClient('setup-go', [], {
     allowRedirects: true,
     maxRedirects: 3
   });
@@ -290,9 +383,9 @@ export async function getVersionsDist(
 export function makeSemver(version: string): string {
   version = version.replace('go', '');
   version = version.replace('beta', '-beta.').replace('rc', '-rc.');
-  let parts = version.split('-');
+  const parts = version.split('-');
 
-  let semVersion = semver.coerce(parts[0])?.version;
+  const semVersion = semver.coerce(parts[0])?.version;
   if (!semVersion) {
     throw new Error(
       `The version: ${version} can't be changed to SemVer notation`
@@ -326,3 +419,65 @@ export function parseGoVersionFile(versionFilePath: string): string {
 
   return contents.trim();
 }
+
+async function resolveStableVersionDist(versionSpec: string, arch: string) {
+  const archFilter = sys.getArch(arch);
+  const platFilter = sys.getPlatform();
+  const dlUrl = 'https://golang.org/dl/?mode=json&include=all';
+  const candidates: IGoVersion[] | null = await module.exports.getVersionsDist(
+    dlUrl
+  );
+  if (!candidates) {
+    throw new Error(`golang download url did not return results`);
+  }
+
+  const fixedCandidates = candidates.map(item => {
+    return {
+      ...item,
+      version: makeSemver(item.version)
+    };
+  });
+
+  const stableVersion = await resolveStableVersionInput(
+    versionSpec,
+    archFilter,
+    platFilter,
+    fixedCandidates
+  );
+
+  return stableVersion;
+}
+
+export async function resolveStableVersionInput(
+  versionSpec: string,
+  arch: string,
+  platform: string,
+  manifest: tc.IToolRelease[] | IGoVersion[]
+) {
+  const releases = manifest
+    .map(item => {
+      const index = item.files.findIndex(
+        item => item.arch === arch && item.filename.includes(platform)
+      );
+      if (index === -1) {
+        return '';
+      }
+      return item.version;
+    })
+    .filter(item => !!item && !semver.prerelease(item));
+
+  if (versionSpec === StableReleaseAlias.Stable) {
+    return releases[0];
+  } else {
+    const versions = releases.map(
+      release => `${semver.major(release)}.${semver.minor(release)}`
+    );
+    const uniqueVersions = Array.from(new Set(versions));
+
+    const oldstableVersion = releases.find(item =>
+      item.startsWith(uniqueVersions[1])
+    );
+
+    return oldstableVersion;
+  }
+}

src/main.ts

@@ -4,7 +4,7 @@ import * as installer from './installer';
 import * as semver from 'semver';
 import path from 'path';
 import {restoreCache} from './cache-restore';
-import {isGhes, isCacheFeatureAvailable} from './cache-utils';
+import {isCacheFeatureAvailable} from './cache-utils';
 import cp from 'child_process';
 import fs from 'fs';
 import os from 'os';
@@ -27,10 +27,11 @@ export async function run() {
     }
 
     if (versionSpec) {
-      let token = core.getInput('token');
+      const token = core.getInput('token');
-      let auth = !token ? undefined : `token ${token}`;
+      const auth = !token ? undefined : `token ${token}`;
 
       const checkLatest = core.getBooleanInput('check-latest');
+
       const installDir = await installer.getGo(
         versionSpec,
         checkLatest,
@@ -38,25 +39,43 @@ export async function run() {
         arch
       );
 
+      const installDirVersion = path.basename(path.dirname(installDir));
+
       core.addPath(path.join(installDir, 'bin'));
       core.info('Added go to the path');
 
-      const version = installer.makeSemver(versionSpec);
+      const version = installer.makeSemver(installDirVersion);
       // Go versions less than 1.9 require GOROOT to be set
       if (semver.lt(version, '1.9.0')) {
         core.info('Setting GOROOT for Go version < 1.9');
         core.exportVariable('GOROOT', installDir);
       }
 
-      let added = await addBinToPath();
-      core.debug(`add bin ${added}`);
       core.info(`Successfully set up Go version ${versionSpec}`);
+    } else {
+      core.info(
+        '[warning]go-version input was not specified. The action will try to use pre-installed version.'
+      );
     }
 
+    const added = await addBinToPath();
+    core.debug(`add bin ${added}`);
+
+    const goPath = await io.which('go');
+    const goVersion = (cp.execSync(`${goPath} version`) || '').toString();
+
     if (cache && isCacheFeatureAvailable()) {
       const packageManager = 'default';
       const cacheDependencyPath = core.getInput('cache-dependency-path');
-      await restoreCache(versionSpec, packageManager, cacheDependencyPath);
+      try {
+        await restoreCache(
+          parseGoVersion(goVersion),
+          packageManager,
+          cacheDependencyPath
+        );
+      } catch (error) {
+        core.warning(`Restore cache failed: ${error.message}`);
+      }
     }
 
     // add problem matchers
@@ -64,14 +83,12 @@ export async function run() {
     core.info(`##[add-matcher]${matchersPath}`);
 
     // output the version actually being used
-    let goPath = await io.which('go');
-    let goVersion = (cp.execSync(`${goPath} version`) || '').toString();
     core.info(goVersion);
 
     core.setOutput('go-version', parseGoVersion(goVersion));
 
     core.startGroup('go env');
-    let goEnv = (cp.execSync(`${goPath} env`) || '').toString();
+    const goEnv = (cp.execSync(`${goPath} env`) || '').toString();
     core.info(goEnv);
     core.endGroup();
   } catch (error) {
@@ -81,16 +98,16 @@ export async function run() {
 
 export async function addBinToPath(): Promise<boolean> {
   let added = false;
-  let g = await io.which('go');
+  const g = await io.which('go');
   core.debug(`which go :${g}:`);
   if (!g) {
     core.debug('go not in the path');
     return added;
   }
 
-  let buf = cp.execSync('go env GOPATH');
+  const buf = cp.execSync('go env GOPATH');
   if (buf.length > 1) {
-    let gp = buf.toString().trim();
+    const gp = buf.toString().trim();
     core.debug(`go env GOPATH :${gp}:`);
     if (!fs.existsSync(gp)) {
       // some of the hosted images have go install but not profile dir
@@ -98,7 +115,7 @@ export async function addBinToPath(): Promise<boolean> {
       await io.mkdirP(gp);
     }
 
-    let bp = path.join(gp, 'bin');
+    const bp = path.join(gp, 'bin');
     if (!fs.existsSync(bp)) {
       core.debug(`creating ${bp}`);
       await io.mkdirP(bp);

src/system.ts

@@ -1,4 +1,4 @@
-const os = require('os');
+import os from 'os';
 
 export function getPlatform(): string {
   // darwin and linux match already

src/utils.ts

@@ -0,0 +1,4 @@
+export enum StableReleaseAlias {
+  Stable = 'stable',
+  OldStable = 'oldstable'
+}

tsconfig.json

@@ -46,6 +46,7 @@
     // "types": [],                           /* Type declaration files to be included in compilation. */
     // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
     "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    "resolveJsonModule": true,                /* Allows importing modules with a '.json' extension, which is a common practice in node projects. */
     "sourceMap": true,
     // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
     // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */