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setup-go
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squash! Configure environment to avoid toolchain installs 

Only modify env if `GOTOOLCHAIN` is not set
This commit is contained in:
Matthew Hughes 2025-08-25 20:07:45 +01:00
parent 7252af563b
commit 277ab1eb0e
3 changed files with 20 additions and 17 deletions
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17
dist/setup/index.js vendored
View File

@ -94312,6 +94312,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.GOTOOLCHAIN_LOCAL_VAL = exports.GOTOOLCHAIN_ENV_VAR = void 0;
exports.getGo = getGo;
exports.extractGoArchive = extractGoArchive;
exports.getManifest = getManifest;
@ -94330,6 +94331,8 @@ const sys = __importStar(__nccwpck_require__(5632));
const fs_1 = __importDefault(__nccwpck_require__(7147));
const os_1 = __importDefault(__nccwpck_require__(2037));
const utils_1 = __nccwpck_require__(1314);
exports.GOTOOLCHAIN_ENV_VAR = 'GOTOOLCHAIN';
exports.GOTOOLCHAIN_LOCAL_VAL = 'local';
const MANIFEST_REPO_OWNER = 'actions';
const MANIFEST_REPO_NAME = 'go-versions';
const MANIFEST_REPO_BRANCH = 'main';
@ -94783,12 +94786,12 @@ const os_1 = __importDefault(__nccwpck_require__(2037));
function run() {
return __awaiter(this, void 0, void 0, function* () {
try {
setToolchain();
//
// versionSpec is optional. If supplied, install / use from the tool cache
// 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');
@ -94897,20 +94900,18 @@ function resolveVersionInput() {
}
return version;
}
function setToolchain() {
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
const toolchain = 'local';
const toolchainVar = 'GOTOOLCHAIN';
// set the value in process env so any `go` commands run as child-process
// 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[toolchainVar] = toolchain;
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(toolchainVar, toolchain);
core.exportVariable(installer.GOTOOLCHAIN_ENV_VAR, installer.GOTOOLCHAIN_LOCAL_VAL);
}

2
src/installer.ts
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@ -8,6 +8,8 @@ import fs from 'fs';
import os from 'os';
import {StableReleaseAlias, isSelfHosted} from './utils';
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';

18
src/main.ts
View File

@ -11,12 +11,12 @@ import os from 'os';
export async function run() {
try {
setToolchain();
//
// versionSpec is optional. If supplied, install / use from the tool cache
// 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}`);
@ -162,19 +162,19 @@ function resolveVersionInput(): string {
return version;
}
function setToolchain() {
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
const toolchain = 'local';
const toolchainVar = 'GOTOOLCHAIN';
// set the value in process env so any `go` commands run as child-process
// 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[toolchainVar] = toolchain;
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(toolchainVar, toolchain);
core.exportVariable(
installer.GOTOOLCHAIN_ENV_VAR,
installer.GOTOOLCHAIN_LOCAL_VAL
);
}