mirror of https://github.com/actions/setup-go
102 lines
2.7 KiB
TypeScript
102 lines
2.7 KiB
TypeScript
import * as tc from '@actions/tool-cache';
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import * as path from 'path';
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import * as semver from 'semver';
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import * as httpm from '@actions/http-client';
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import * as sys from './system';
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export async function downloadGo(
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versionSpec: string,
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stable: boolean
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): Promise<string | undefined> {
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let toolPath: string | undefined;
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try {
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let match: IGoVersion | undefined = await findMatch(versionSpec, stable);
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if (match) {
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// download
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let downloadUrl: string = `https://storage.googleapis.com/golang/${match.files[0]}`;
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let downloadPath: string = await tc.downloadTool(downloadUrl);
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// extract
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let extPath: string =
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sys.getPlatform() == 'windows'
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? await tc.extractZip(downloadPath)
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: await tc.extractTar(downloadPath);
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// extracts with a root folder that matches the fileName downloaded
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const toolRoot = path.join(extPath, 'go');
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toolPath = await tc.cacheDir(toolRoot, 'go', versionSpec);
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}
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} catch (error) {
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throw `Failed to download version ${versionSpec}: ${error}`;
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}
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return toolPath;
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}
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export interface IGoVersionFile {
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filename: string;
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// darwin, linux, windows
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os: string;
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arch: string;
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}
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export interface IGoVersion {
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version: string;
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stable: boolean;
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files: IGoVersionFile[];
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}
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export async function findMatch(
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versionSpec: string,
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stable: boolean
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): Promise<IGoVersion | undefined> {
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let archFilter = sys.getArch();
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let platFilter = sys.getPlatform();
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let match: IGoVersion | undefined;
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const dlUrl: string = 'https://golang.org/dl/?mode=json&include=all';
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// this returns versions descending so latest is first
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let http: httpm.HttpClient = new httpm.HttpClient('setup-go');
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let candidates: IGoVersion[] | null = (await http.getJson<IGoVersion[]>(
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dlUrl
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)).result;
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if (!candidates) {
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throw new Error(`golang download url did not return results: ${dlUrl}`);
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}
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let goFile: IGoVersionFile | undefined;
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for (let i = 0; i < candidates.length; i++) {
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let candidate: IGoVersion = candidates[i];
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let version = candidate.version.replace('go', '');
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// 1.13.0 is advertised as 1.13 preventing being able to match exactly 1.13.0
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// since a semver of 1.13 would match latest 1.13
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let parts: string[] = version.split('.');
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if (parts.length == 2) {
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version = version + '.0';
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}
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//console.log(version, versionSpec);
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if (semver.satisfies(version, versionSpec) && candidate.stable == stable) {
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goFile = candidate.files.find(file => {
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return file.arch === archFilter && file.os === platFilter;
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});
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if (goFile) {
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match = candidate;
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break;
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}
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}
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}
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if (match && goFile) {
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match.files = [goFile];
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}
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return match;
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}
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