Update run.ts
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Sundar
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201
src/run.ts
201
src/run.ts
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// Copyright (c) Microsoft Corporation.
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// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT license.
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import * as os from 'os';
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import * as path from 'path';
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import * as util from 'util';
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import * as fs from 'fs';
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import * as semver from 'semver';
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import * as toolCache from '@actions/tool-cache';
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import * as core from '@actions/core';
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import { graphql } from '@octokit/graphql';
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const helmToolName = 'helm';
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const stableHelmVersion = 'v3.2.1';
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const stableHelm3Version = 'v3.5.3';
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const stableHelm2Version = 'v2.17.0';
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const LATEST_HELM2_VERSION = '2.*';
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const LATEST_HELM3_VERSION = '3.*';
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const helmAllReleasesUrl = 'https://api.github.com/repos/helm/helm/releases';
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export function getExecutableExtension(): string {
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if (os.type().match(/^Win/)) {
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return '.exe';
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}
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return '';
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}
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export function getHelmDownloadURL(version: string): string {
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switch (os.type()) {
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case 'Linux':
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return util.format('https://get.helm.sh/helm-%s-linux-amd64.zip', version);
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case 'Darwin':
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return util.format('https://get.helm.sh/helm-%s-darwin-amd64.zip', version);
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case 'Windows_NT':
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default:
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return util.format('https://get.helm.sh/helm-%s-windows-amd64.zip', version);
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}
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}
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export async function getStableHelmVersion(): Promise<string> {
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try {
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const downloadPath = await toolCache.downloadTool(helmAllReleasesUrl);
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const responseArray = JSON.parse(fs.readFileSync(downloadPath, 'utf8').toString().trim());
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let latestHelmVersion = semver.clean(stableHelmVersion);
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responseArray.forEach(response => {
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if (response && response.tag_name) {
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let currentHelmVerison = semver.clean(response.tag_name.toString());
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if (currentHelmVerison) {
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if (currentHelmVerison.toString().indexOf('rc') == -1 && semver.gt(currentHelmVerison, latestHelmVersion)) {
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//If current helm version is not a pre release and is greater than latest helm version
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latestHelmVersion = currentHelmVerison;
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}
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}
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}
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});
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latestHelmVersion = "v" + latestHelmVersion;
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return latestHelmVersion;
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} catch (error) {
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core.warning(util.format("Cannot get the latest Helm info from %s. Error %s. Using default Helm version %s.", helmAllReleasesUrl, error, stableHelmVersion));
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}
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return stableHelmVersion;
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}
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export var walkSync = function (dir, filelist, fileToFind) {
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var files = fs.readdirSync(dir);
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filelist = filelist || [];
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files.forEach(function (file) {
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if (fs.statSync(path.join(dir, file)).isDirectory()) {
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filelist = walkSync(path.join(dir, file), filelist, fileToFind);
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}
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else {
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core.debug(file);
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if (file == fileToFind) {
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filelist.push(path.join(dir, file));
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}
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}
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});
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return filelist;
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};
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export async function downloadHelm(version: string): Promise<string> {
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if (!version) { version = await getStableHelmVersion(); }
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let cachedToolpath = toolCache.find(helmToolName, version);
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if (!cachedToolpath) {
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let helmDownloadPath;
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try {
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helmDownloadPath = await toolCache.downloadTool(getHelmDownloadURL(version));
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} catch (exception) {
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throw new Error(util.format("Failed to download Helm from location", getHelmDownloadURL(version)));
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}
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fs.chmodSync(helmDownloadPath, '777');
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const unzipedHelmPath = await toolCache.extractZip(helmDownloadPath);
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cachedToolpath = await toolCache.cacheDir(unzipedHelmPath, helmToolName, version);
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}
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const helmpath = findHelm(cachedToolpath);
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if (!helmpath) {
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throw new Error(util.format("Helm executable not found in path", cachedToolpath));
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}
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fs.chmodSync(helmpath, '777');
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return helmpath;
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}
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async function getLatestHelmVersionFor(type: string): Promise<string> {
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const token = core.getInput('token', { 'required': true });
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try {
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const { repository } = await graphql(
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`{
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repository(name: "helm", owner: "helm") {
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releases(last: 100) {
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nodes {
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tagName
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}
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}
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}
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}`,
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{
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headers: {
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authorization: `token ${token}`
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}
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}
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);
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const releases = repository.releases.nodes.reverse();
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let latestValidRelease = releases.find(release => isValidVersion(release.tagName, type));
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if (latestValidRelease)
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return latestValidRelease.tagName;
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} catch (err) {
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core.warning(util.format("Error while fetching the latest Helm %s release. Error: %s. Using default Helm version %s.", type, err.toString(), getStableHelmVersionFor(type)));
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return getStableHelmVersionFor(type);
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}
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core.warning(util.format("Could not find stable release for Helm %s. Using default Helm version %s.", type, getStableHelmVersionFor(type)));
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return getStableHelmVersionFor(type);
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}
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function getStableHelmVersionFor(type: string) {
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return type === "v2" ? stableHelm2Version : stableHelm3Version;
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}
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// isValidVersion checks if verison matches the specified type and is a stable release
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function isValidVersion(version: string, type: string): boolean {
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if (!version.toLocaleLowerCase().startsWith(type))
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return false;
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return version.indexOf('rc') == -1;
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}
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export function findHelm(rootFolder: string): string {
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fs.chmodSync(rootFolder, '777');
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var filelist: string[] = [];
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walkSync(rootFolder, filelist, helmToolName + getExecutableExtension());
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if (!filelist || filelist.length == 0) {
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throw new Error(util.format("Helm executable not found in path", rootFolder));
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}
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else {
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return filelist[0];
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}
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}
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export async function run() {
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let version = core.getInput('version', { 'required': true });
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if (process.env['HELM_INSTALLER_LEGACY_VERSIONING'] == 'true') {
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if (version.toLocaleLowerCase() === 'latest') {
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version = await getStableHelmVersion();
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} else if (!version.toLocaleLowerCase().startsWith('v')) {
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version = 'v' + version;
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}
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} else {
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if (version.toLocaleLowerCase() === 'latest' || version === LATEST_HELM3_VERSION) {
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version = await getLatestHelmVersionFor("v3");
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} else if (version === LATEST_HELM2_VERSION) {
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version = await getLatestHelmVersionFor("v2");
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} else if (!version.toLocaleLowerCase().startsWith('v')) {
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version = 'v' + version;
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}
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}
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core.debug(util.format("Downloading %s", version));
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let cachedPath = await downloadHelm(version);
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try {
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if (!process.env['PATH'].startsWith(path.dirname(cachedPath))) {
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core.addPath(path.dirname(cachedPath));
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}
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}
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catch {
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//do nothing, set as output variable
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}
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console.log(`Helm tool version: '${version}' has been cached at ${cachedPath}`);
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core.setOutput('helm-path', cachedPath);
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}
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run().catch(core.setFailed);
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