Test macos-14-large x64 runner

.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: '24.x'
+      node-version: '20'

.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: '24.x'
+      node-version: '20'

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

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checking out
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
       - name: Publish
         id: publish
         uses: actions/publish-immutable-action@v0.0.4

.github/workflows/versions.yml

@@ -3,7 +3,7 @@ name: Validate 'setup-go'
 on:
   push:
     branches:
-      - main
+      - test-macos-x64-runner
     paths-ignore:
       - '**.md'
   pull_request:
@@ -18,9 +18,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
+        os: [macos-14-large]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - 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: [macos-14-large]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - name: Setup Go oldStable
         uses: ./
         with:
@@ -43,28 +43,28 @@ jobs:
       - name: Verify Go
         run: go version
 
-  aliases-arch:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
-        version: [stable, oldstable]
-        architecture: [x64, x32]
-        exclude:
-          - os: macos-latest
-            architecture: x32
-          - os: macos-13
-            architecture: x32
-    steps:
-      - uses: actions/checkout@v5
-      - name: Setup Go ${{ matrix.version }} ${{ matrix.architecture }}
-        uses: ./
-        with:
-          go-version: ${{ matrix.version }}
-          architecture: ${{ matrix.architecture }}
-      - name: Verify Go
-        run: go version
+  # aliases-arch:
+  #   runs-on: ${{ matrix.os }}
+  #   strategy:
+  #     fail-fast: false
+  #     matrix:
+  #       os: [ubuntu-latest, windows-latest, macos-latest, macos-14-large]
+  #       version: [stable, oldstable]
+  #       architecture: [x64, x32]
+  #       exclude:
+  #         - os: macos-latest
+  #           architecture: x32
+  #         - os: macos-14-large
+  #           architecture: x32
+  #   steps:
+  #     - uses: actions/checkout@v4
+  #     - 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
@@ -72,17 +72,17 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-latest, macos-13]
+        os: [macos-14-large]
         go: [1.21.13, 1.22.8, 1.23.2]
-        include:
-          - os: windows-latest
-            go: 1.20.14
-        exclude:
-          - os: windows-latest
-            go: 1.23.2
+        # include:
+        #   - os: windows-latest
+        #     go: 1.20.14
+        # exclude:
+        #   - os: windows-latest
+        #     go: 1.23.2
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
 
       - 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: [macos-14-large]
         go-version: ['1.20', '1.21', '1.22', '1.23']
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - 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: [macos-14-large]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - 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: [macos-14-large]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - name: Setup Go and check latest
         uses: ./
         with:
@@ -147,11 +147,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-latest, macos-13]
+        os: [macos-14-large]
         go: [1.20.14, 1.21.10, 1.22.8, 1.23.2]
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
 
       - name: setup-go ${{ matrix.go }}
         uses: ./
@@ -167,11 +167,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-latest, ubuntu-latest, macos-13]
+        os: [macos-14-large]
         go: [1.11.12]
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
 
       - name: setup-go ${{ matrix.go }}
         uses: ./
@@ -187,19 +187,19 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
+        os: [macos-14-large]
         go-version: [1.20.14, 1.21, 1.22, 1.23]
         include:
-          - os: macos-latest
-            architecture: arm64
-          - os: ubuntu-latest
-            architecture: x64
-          - os: windows-latest
-            architecture: x64
-          - os: macos-13
+          # - os: macos-latest
+          #   architecture: arm64
+          # - os: ubuntu-latest
+          #   architecture: x64
+          # - os: windows-latest
+          #   architecture: x64
+          - os: macos-14-large
             architecture: x64
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - 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@v5
+      - uses: actions/checkout@v4
 
       - name: 'Setup ${{ matrix.cache }}, cache: ${{ matrix.go }}'
         uses: ./
@@ -88,7 +88,7 @@ jobs:
       matrix:
         cache: [false, true]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
 
       - name: 'Setup default go, cache: ${{ matrix.cache }}'
         uses: ./
@@ -121,7 +121,7 @@ jobs:
         cache: [false]
         go: [1.20.1]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
 
       - name: 'Setup ${{ matrix.go }}, cache: ${{ matrix.cache }}'
         uses: ./

README.md

@@ -8,14 +8,6 @@ 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.
 
-# Breaking changes in V6
-
-- Improve toolchain handling to ensure more reliable and consistent toolchain selection and management.
-- Upgraded 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)
-
-For more details,  see the full release notes on the [releases page](https://github.com/actions/setup-go/releases/tag/v6.0.0)
-
 # V5
 
 The V5 edition of the action offers:
@@ -24,6 +16,27 @@ The V5 edition of the action offers:
 
 See full release notes on the [releases page](https://github.com/actions/setup-go/releases).
 
+# 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:
+
+- Adds `GOBIN` to the `PATH`
+- Proxy support
+- Check latest version
+- Caching packages dependencies
+- stable and oldstable aliases
+- Bug Fixes (including issues around version matching and semver)
+
 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
@@ -37,8 +50,8 @@ Matching by [semver spec](https://github.com/npm/node-semver):
 
 ```yaml
 steps:
-  - uses: actions/checkout@v5
-  - uses: actions/setup-go@v6
+  - uses: actions/checkout@v4
+  - uses: actions/setup-go@v5
     with:
       go-version: '^1.13.1' # The Go version to download (if necessary) and use.
   - run: go version
@@ -46,8 +59,8 @@ steps:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v5
-  - uses: actions/setup-go@v6
+  - uses: actions/checkout@v4
+  - uses: actions/setup-go@v5
     with:
       go-version: '>=1.17.0'
   - run: go version
@@ -65,8 +78,8 @@ Matching an unstable pre-release:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v5
-  - uses: actions/setup-go@v6
+  - 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
@@ -74,8 +87,8 @@ steps:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v5
-  - uses: actions/setup-go@v6
+  - 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
@@ -89,8 +102,8 @@ See [action.yml](action.yml)
 
 ```yaml
 steps:
-  - uses: actions/checkout@v5
-  - uses: actions/setup-go@v6
+  - 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
@@ -110,8 +123,8 @@ want the most up-to-date Go version to always be used.
 
 ```yaml
 steps:
-  - uses: actions/checkout@v5
-  - uses: actions/setup-go@v6
+  - uses: actions/checkout@v4
+  - uses: actions/setup-go@v5
     with:
       go-version: '1.14'
       check-latest: true
@@ -131,8 +144,8 @@ set to `true`
 
 ```yaml
 steps:
-  - uses: actions/checkout@v5
-  - uses: actions/setup-go@v6
+  - uses: actions/checkout@v4
+  - uses: actions/setup-go@v5
     with:
       go-version: 'stable'
   - run: go run hello.go
@@ -140,8 +153,8 @@ steps:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v5
-  - uses: actions/setup-go@v6
+  - uses: actions/checkout@v4
+  - uses: actions/setup-go@v5
     with:
       go-version: 'oldstable'
   - run: go run hello.go
@@ -163,8 +176,8 @@ If some problem that prevents success caching happens then the action issues the
 
 ```yaml
 steps:
-  - uses: actions/checkout@v5
-  - uses: actions/setup-go@v6
+  - uses: actions/checkout@v4
+  - uses: actions/setup-go@v5
     with:
       go-version: '1.17'
       check-latest: true
@@ -178,15 +191,9 @@ steps:
 
 ## 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 version taken
-from thils file will be:
-
-  - The version from the `toolchain` directive, if there is one, otherwise
-  - The version from the `go` directive
-
-The version can specify a patch version or omit it altogether (e.g., `go 1.22.0` or `go 1.22`).
+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
@@ -197,8 +204,8 @@ If both the `go-version` and the `go-version-file` inputs are provided then the
 
 ```yaml
 steps:
-  - uses: actions/checkout@v5
-  - uses: actions/setup-go@v6
+  - uses: actions/checkout@v4
+  - uses: actions/setup-go@v5
     with:
       go-version-file: 'path/to/go.mod'
   - run: go version
@@ -215,9 +222,9 @@ jobs:
         go: [ '1.14', '1.13' ]
     name: Go ${{ matrix.go }} sample
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - name: Setup go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@v5
         with:
           go-version: ${{ matrix.go }}
       - run: go run hello.go
@@ -245,7 +252,7 @@ If that fails as well the action will try to download versions directly from htt
 If that fails as well you can get a higher rate limit with [generating a personal access token on github.com](https://github.com/settings/tokens/new) and passing it as the `token` input to the action:
 
 ```yaml
-uses: actions/setup-go@v6
+uses: actions/setup-go@v5
 with:
   token: ${{ secrets.GH_DOTCOM_TOKEN }}
   go-version: '1.18'

__tests__/setup-go.test.ts

@@ -129,9 +129,6 @@ describe('setup-go', () => {
   });
 
   afterEach(() => {
-    // clear out env var set during 'run'
-    delete process.env[im.GOTOOLCHAIN_ENV_VAR];
-
     //jest.resetAllMocks();
     jest.clearAllMocks();
     //jest.restoreAllMocks();
@@ -288,7 +285,7 @@ describe('setup-go', () => {
     expect(logSpy).toHaveBeenCalledWith(`Setup go version spec 1.13.0`);
   });
 
-  it('does not export GOROOT for Go versions >=1.9', async () => {
+  it('does not export any variables for Go versions >=1.9', async () => {
     inputs['go-version'] = '1.13.0';
     inSpy.mockImplementation(name => inputs[name]);
 
@@ -301,7 +298,7 @@ describe('setup-go', () => {
     });
 
     await main.run();
-    expect(vars).not.toHaveProperty('GOROOT');
+    expect(vars).toStrictEqual({});
   });
 
   it('exports GOROOT for Go versions <1.9', async () => {
@@ -317,7 +314,9 @@ describe('setup-go', () => {
     });
 
     await main.run();
-    expect(vars).toHaveProperty('GOROOT', toolPath);
+    expect(vars).toStrictEqual({
+      GOROOT: toolPath
+    });
   });
 
   it('finds a version of go already in the cache', async () => {
@@ -990,104 +989,4 @@ use .
       }
     );
   });
-
-  describe('go-version-file-toolchain', () => {
-    const goVersions = ['1.22.0', '1.21rc2', '1.18'];
-    const placeholderVersion = '1.19';
-    const buildGoMod = (
-      goVersion: string,
-      toolchainVersion: string
-    ) => `module example.com/mymodule
-
-go ${goVersion}
-
-toolchain go${toolchainVersion}
-
-require (
-	example.com/othermodule v1.2.3
-	example.com/thismodule v1.2.3
-	example.com/thatmodule v1.2.3
-)
-
-replace example.com/thatmodule => ../thatmodule
-exclude example.com/thismodule v1.3.0
-`;
-
-    const buildGoWork = (
-      goVersion: string,
-      toolchainVersion: string
-    ) => `go 1.19
-
-toolchain go${toolchainVersion}
-
-use .
-
-`;
-
-    goVersions.forEach(version => {
-      [
-        {
-          goVersionfile: 'go.mod',
-          fileContents: Buffer.from(buildGoMod(placeholderVersion, version)),
-          expected_version: version,
-          desc: 'from toolchain directive'
-        },
-        {
-          goVersionfile: 'go.work',
-          fileContents: Buffer.from(buildGoMod(placeholderVersion, version)),
-          expected_version: version,
-          desc: 'from toolchain directive'
-        },
-        {
-          goVersionfile: 'go.mod',
-          fileContents: Buffer.from(buildGoMod(placeholderVersion, version)),
-          gotoolchain_env: 'local',
-          expected_version: placeholderVersion,
-          desc: 'from go directive when GOTOOLCHAIN is local'
-        },
-        {
-          goVersionfile: 'go.work',
-          fileContents: Buffer.from(buildGoMod(placeholderVersion, version)),
-          gotoolchain_env: 'local',
-          expected_version: placeholderVersion,
-          desc: 'from go directive when GOTOOLCHAIN is local'
-        }
-      ].forEach(test => {
-        it(`reads version (${version}) in ${test.goVersionfile} ${test.desc}`, async () => {
-          inputs['go-version-file'] = test.goVersionfile;
-          if (test.gotoolchain_env !== undefined) {
-            process.env[im.GOTOOLCHAIN_ENV_VAR] = test.gotoolchain_env;
-          }
-          existsSpy.mockImplementation(() => true);
-          readFileSpy.mockImplementation(() => Buffer.from(test.fileContents));
-
-          await main.run();
-
-          expect(logSpy).toHaveBeenCalledWith(
-            `Setup go version spec ${test.expected_version}`
-          );
-          expect(logSpy).toHaveBeenCalledWith(
-            `Attempting to download ${test.expected_version}...`
-          );
-          expect(logSpy).toHaveBeenCalledWith(
-            `matching ${test.expected_version}...`
-          );
-        });
-      });
-    });
-  });
-
-  it('exports GOTOOLCHAIN and sets it in current process env', async () => {
-    inputs['go-version'] = '1.21.0';
-    inSpy.mockImplementation(name => inputs[name]);
-
-    const vars: {[key: string]: string} = {};
-    exportVarSpy.mockImplementation((name: string, val: string) => {
-      vars[name] = val;
-    });
-
-    await main.run();
-    expect(vars).toStrictEqual({GOTOOLCHAIN: 'local'});
-    expect(process.env).toHaveProperty('GOTOOLCHAIN', 'local');
-  });
 });

package.json

@@ -1,12 +1,9 @@
 {
   "name": "setup-go",
-  "version": "6.0.0",
+  "version": "5.0.0",
   "private": true,
   "description": "setup go action",
   "main": "lib/setup-go.js",
-  "engines": {
-    "node": ">=24.0.0"
-  },
   "scripts": {
     "build": "tsc && ncc build -o dist/setup src/setup-go.ts && ncc build -o dist/cache-save src/cache-save.ts",
     "format": "prettier --no-error-on-unmatched-pattern --config ./.prettierrc.js --write \"**/*.{ts,yml,yaml}\"",
@@ -39,18 +36,18 @@
   },
   "devDependencies": {
     "@types/jest": "^29.5.14",
-    "@types/node": "^24.1.0",
+    "@types/node": "^20.11.28",
     "@types/semver": "^7.5.8",
     "@typescript-eslint/eslint-plugin": "^8.31.1",
     "@typescript-eslint/parser": "^8.35.1",
     "@vercel/ncc": "^0.38.1",
     "eslint": "^8.57.0",
-    "eslint-config-prettier": "^10.1.8",
+    "eslint-config-prettier": "^10.0.1",
     "eslint-plugin-jest": "^29.0.1",
     "eslint-plugin-node": "^11.1.0",
     "jest": "^29.7.0",
     "jest-circus": "^29.7.0",
-    "nock": "^14.0.10",
+    "nock": "^10.0.6",
     "prettier": "^2.8.4",
     "ts-jest": "^29.3.2",
     "typescript": "^5.8.3"

src/installer.ts

@@ -7,10 +7,7 @@ import * as sys from './system';
 import fs from 'fs';
 import os from 'os';
 import {StableReleaseAlias, isSelfHosted} from './utils';
-import {Architecture} from './types';
 
-export const GOTOOLCHAIN_ENV_VAR = 'GOTOOLCHAIN';
-export const GOTOOLCHAIN_LOCAL_VAL = 'local';
 const MANIFEST_REPO_OWNER = 'actions';
 const MANIFEST_REPO_NAME = 'go-versions';
 const MANIFEST_REPO_BRANCH = 'main';
@@ -42,7 +39,7 @@ export async function getGo(
   versionSpec: string,
   checkLatest: boolean,
   auth: string | undefined,
-  arch: Architecture = os.arch() as Architecture
+  arch = os.arch()
 ) {
   let manifest: tc.IToolRelease[] | undefined;
   const osPlat: string = os.platform();
@@ -154,7 +151,7 @@ async function resolveVersionFromManifest(
   versionSpec: string,
   stable: boolean,
   auth: string | undefined,
-  arch: Architecture,
+  arch: string,
   manifest: tc.IToolRelease[] | undefined
 ): Promise<string | undefined> {
   try {
@@ -356,7 +353,7 @@ export async function getInfoFromManifest(
   versionSpec: string,
   stable: boolean,
   auth: string | undefined,
-  arch: Architecture = os.arch() as Architecture,
+  arch = os.arch(),
   manifest?: tc.IToolRelease[] | undefined
 ): Promise<IGoVersionInfo | null> {
   let info: IGoVersionInfo | null = null;
@@ -382,7 +379,7 @@ export async function getInfoFromManifest(
 
 async function getInfoFromDist(
   versionSpec: string,
-  arch: Architecture
+  arch: string
 ): Promise<IGoVersionInfo | null> {
   const version: IGoVersion | undefined = await findMatch(versionSpec, arch);
   if (!version) {
@@ -401,7 +398,7 @@ async function getInfoFromDist(
 
 export async function findMatch(
   versionSpec: string,
-  arch: Architecture = os.arch() as Architecture
+  arch = os.arch()
 ): Promise<IGoVersion | undefined> {
   const archFilter = sys.getArch(arch);
   const platFilter = sys.getPlatform();
@@ -498,30 +495,14 @@ export function parseGoVersionFile(versionFilePath: string): string {
     path.basename(versionFilePath) === 'go.mod' ||
     path.basename(versionFilePath) === 'go.work'
   ) {
-    // for backwards compatibility: use version from go directive if
-    // 'GOTOOLCHAIN' has been explicitly set
-    if (process.env[GOTOOLCHAIN_ENV_VAR] !== GOTOOLCHAIN_LOCAL_VAL) {
-      // toolchain directive: https://go.dev/ref/mod#go-mod-file-toolchain
-      const matchToolchain = contents.match(
-        /^toolchain go(1\.\d+(?:\.\d+|rc\d+)?)/m
-      );
-      if (matchToolchain) {
-        return matchToolchain[1];
-      }
-    }
-
-    // go directive: https://go.dev/ref/mod#go-mod-file-go
-    const matchGo = contents.match(/^go (\d+(\.\d+)*)/m);
-    return matchGo ? matchGo[1] : '';
+    const match = contents.match(/^go (\d+(\.\d+)*)/m);
+    return match ? match[1] : '';
   }
 
   return contents.trim();
 }
 
-async function resolveStableVersionDist(
-  versionSpec: string,
-  arch: Architecture
-) {
+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';

src/main.ts

@@ -8,7 +8,6 @@ import {isCacheFeatureAvailable} from './cache-utils';
 import cp from 'child_process';
 import fs from 'fs';
 import os from 'os';
-import {Architecture} from './types';
 
 export async function run() {
   try {
@@ -17,15 +16,14 @@ export async function run() {
     // If not supplied then problem matchers will still be setup.  Useful for self-hosted.
     //
     const versionSpec = resolveVersionInput();
-    setGoToolchain();
 
     const cache = core.getBooleanInput('cache');
     core.info(`Setup go version spec ${versionSpec}`);
 
-    let arch = core.getInput('architecture') as Architecture;
+    let arch = core.getInput('architecture');
 
     if (!arch) {
-      arch = os.arch() as Architecture;
+      arch = os.arch();
     }
 
     if (versionSpec) {
@@ -162,20 +160,3 @@ function resolveVersionInput(): string {
 
   return version;
 }
-
-function setGoToolchain() {
-  // docs: https://go.dev/doc/toolchain
-  // "local indicates the bundled Go toolchain (the one that shipped with the go command being run)"
-  // this is so any 'go' command is run with the selected Go version
-  // and doesn't trigger a toolchain download and run commands with that
-  // see e.g. issue #424
-  // and a similar discussion: https://github.com/docker-library/golang/issues/472.
-  // Set the value in process env so any `go` commands run as child-process
-  // don't cause toolchain downloads
-  process.env[installer.GOTOOLCHAIN_ENV_VAR] = installer.GOTOOLCHAIN_LOCAL_VAL;
-  // and in the runner env so e.g. a user running `go mod tidy` won't cause it
-  core.exportVariable(
-    installer.GOTOOLCHAIN_ENV_VAR,
-    installer.GOTOOLCHAIN_LOCAL_VAL
-  );
-}

src/system.ts

@@ -1,5 +1,4 @@
 import os from 'os';
-import {Architecture} from './types';
 
 export function getPlatform(): string {
   // darwin and linux match already
@@ -16,7 +15,7 @@ export function getPlatform(): string {
   return plat;
 }
 
-export function getArch(arch: Architecture): string {
+export function getArch(arch: string): string {
   // 'arm', 'arm64', 'ia32', 'mips', 'mipsel', 'ppc', 'ppc64', 's390', 's390x', 'x32', and 'x64'.
 
   // wants amd64, 386, arm64, armv61, ppc641e, s390x

src/types.ts

@@ -1,2 +0,0 @@
-// match what @actions/tool-cache expects
-export type Architecture = string;