setup-go/src/main.ts

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import * as core from '@actions/core';
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import * as io from '@actions/io';
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import * as tc from '@actions/tool-cache';
import * as installer from './installer';
import * as path from 'path';
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import * as cp from 'child_process';
import * as fs from 'fs';
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export async function run() {
try {
//
// 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.
//
let versionSpec = core.getInput('go-version');
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// stable will be true unless false is the exact input
// since getting unstable versions should be explicit
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let stable = (core.getInput('stable') || 'true').toUpperCase() === 'TRUE';
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console.log(
`Setup go ${stable ? 'stable' : ''} version spec ${versionSpec}`
);
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// if there's a globally install go and bin path, prefer that
let addedBin = addBinToPath();
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if (versionSpec) {
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let installDir: string | undefined = tc.find('go', versionSpec);
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if (!installDir) {
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console.log(
`A version satisfying ${versionSpec} not found locally, attempting to download ...`
);
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installDir = await installer.downloadGo(versionSpec, stable);
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console.log('Installed');
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}
if (installDir) {
core.exportVariable('GOROOT', installDir);
core.addPath(path.join(installDir, 'bin'));
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console.log('Added go to the path');
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// if the global installed bin wasn't added,
// we can add the bin just installed
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if (!addedBin) {
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addBinToPath();
}
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} else {
throw new Error(
`Could not find a version that satisfied version spec: ${versionSpec}`
);
}
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}
// add problem matchers
const matchersPath = path.join(__dirname, '..', 'matchers.json');
console.log(`##[add-matcher]${matchersPath}`);
} catch (error) {
core.setFailed(error.message);
}
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}
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async function addBinToPath(): Promise<boolean> {
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let added = false;
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let g = await io.which('go');
core.debug(`which go :${g}:`);
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if (!g) {
core.debug('go not in the path');
return added;
}
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let buf = cp.execSync('go env GOPATH');
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if (buf) {
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let gp = buf.toString().trim();
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core.debug(`go env GOPATH :${gp}:`);
if (!fs.existsSync(gp)) {
// some of the hosted images have go install but not profile dir
core.debug(`creating ${gp}`);
io.mkdirP(gp);
}
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let bp = path.join(gp, 'bin');
if (!fs.existsSync(bp)) {
core.debug(`creating ${bp}`);
io.mkdirP(bp);
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}
core.addPath(bp);
added = true;
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}
return added;
}