diff --git a/src/run.ts b/src/run.ts index 616d1b5b..8b137891 100644 --- a/src/run.ts +++ b/src/run.ts @@ -1,202 +1 @@ -// Copyright (c) Microsoft Corporation. -// Copyright (c) Microsoft Corporation. -// Licensed under the MIT license. -import * as os from 'os'; -import * as path from 'path'; -import * as util from 'util'; -import * as fs from 'fs'; -import * as semver from 'semver'; - -import * as toolCache from '@actions/tool-cache'; -import * as core from '@actions/core'; -import { graphql } from '@octokit/graphql'; - -const helmToolName = 'helm'; -const stableHelmVersion = 'v3.2.1'; -const stableHelm3Version = 'v3.5.3'; -const stableHelm2Version = 'v2.17.0'; -const LATEST_HELM2_VERSION = '2.*'; -const LATEST_HELM3_VERSION = '3.*'; -const helmAllReleasesUrl = 'https://api.github.com/repos/helm/helm/releases'; - -export function getExecutableExtension(): string { - if (os.type().match(/^Win/)) { - return '.exe'; - } - return ''; -} - -export function getHelmDownloadURL(version: string): string { - switch (os.type()) { - case 'Linux': - return util.format('https://get.helm.sh/helm-%s-linux-amd64.zip', version); - - case 'Darwin': - return util.format('https://get.helm.sh/helm-%s-darwin-amd64.zip', version); - - case 'Windows_NT': - default: - return util.format('https://get.helm.sh/helm-%s-windows-amd64.zip', version); - } -} - -export async function getStableHelmVersion(): Promise { - try { - const downloadPath = await toolCache.downloadTool(helmAllReleasesUrl); - const responseArray = JSON.parse(fs.readFileSync(downloadPath, 'utf8').toString().trim()); - let latestHelmVersion = semver.clean(stableHelmVersion); - responseArray.forEach(response => { - if (response && response.tag_name) { - let currentHelmVerison = semver.clean(response.tag_name.toString()); - if (currentHelmVerison) { - if (currentHelmVerison.toString().indexOf('rc') == -1 && semver.gt(currentHelmVerison, latestHelmVersion)) { - //If current helm version is not a pre release and is greater than latest helm version - latestHelmVersion = currentHelmVerison; - } - } - } - }); - latestHelmVersion = "v" + latestHelmVersion; - return latestHelmVersion; - } catch (error) { - core.warning(util.format("Cannot get the latest Helm info from %s. Error %s. Using default Helm version %s.", helmAllReleasesUrl, error, stableHelmVersion)); - } - - return stableHelmVersion; -} - -export var walkSync = function (dir, filelist, fileToFind) { - var files = fs.readdirSync(dir); - filelist = filelist || []; - files.forEach(function (file) { - if (fs.statSync(path.join(dir, file)).isDirectory()) { - filelist = walkSync(path.join(dir, file), filelist, fileToFind); - } - else { - core.debug(file); - if (file == fileToFind) { - filelist.push(path.join(dir, file)); - } - } - }); - return filelist; -}; - -export async function downloadHelm(version: string): Promise { - if (!version) { version = await getStableHelmVersion(); } - let cachedToolpath = toolCache.find(helmToolName, version); - if (!cachedToolpath) { - let helmDownloadPath; - try { - helmDownloadPath = await toolCache.downloadTool(getHelmDownloadURL(version)); - } catch (exception) { - throw new Error(util.format("Failed to download Helm from location", getHelmDownloadURL(version))); - } - - fs.chmodSync(helmDownloadPath, '777'); - const unzipedHelmPath = await toolCache.extractZip(helmDownloadPath); - cachedToolpath = await toolCache.cacheDir(unzipedHelmPath, helmToolName, version); - } - - const helmpath = findHelm(cachedToolpath); - if (!helmpath) { - throw new Error(util.format("Helm executable not found in path", cachedToolpath)); - } - - fs.chmodSync(helmpath, '777'); - return helmpath; -} - -async function getLatestHelmVersionFor(type: string): Promise { - const token = core.getInput('token', { 'required': true }); - try { - const { repository } = await graphql( - `{ - repository(name: "helm", owner: "helm") { - releases(last: 100) { - nodes { - tagName - } - } - } - }`, - { - headers: { - authorization: `token ${token}` - } - } - ); - - const releases = repository.releases.nodes.reverse(); - let latestValidRelease = releases.find(release => isValidVersion(release.tagName, type)); - if (latestValidRelease) - return latestValidRelease.tagName; - } catch (err) { - core.warning(util.format("Error while fetching the latest Helm %s release. Error: %s. Using default Helm version %s.", type, err.toString(), getStableHelmVersionFor(type))); - return getStableHelmVersionFor(type); - } - core.warning(util.format("Could not find stable release for Helm %s. Using default Helm version %s.", type, getStableHelmVersionFor(type))); - return getStableHelmVersionFor(type); -} - -function getStableHelmVersionFor(type: string) { - return type === "v2" ? stableHelm2Version : stableHelm3Version; -} - -// isValidVersion checks if verison matches the specified type and is a stable release -function isValidVersion(version: string, type: string): boolean { - if (!version.toLocaleLowerCase().startsWith(type)) - return false; - return version.indexOf('rc') == -1; -} - -export function findHelm(rootFolder: string): string { - fs.chmodSync(rootFolder, '777'); - var filelist: string[] = []; - walkSync(rootFolder, filelist, helmToolName + getExecutableExtension()); - if (!filelist || filelist.length == 0) { - throw new Error(util.format("Helm executable not found in path", rootFolder)); - } - else { - return filelist[0]; - } -} - -export async function run() { - let version = core.getInput('version', { 'required': true }); - - if (process.env['HELM_INSTALLER_LEGACY_VERSIONING'] == 'true') { - if (version.toLocaleLowerCase() === 'latest') { - version = await getStableHelmVersion(); - } else if (!version.toLocaleLowerCase().startsWith('v')) { - version = 'v' + version; - } - } else { - if (version.toLocaleLowerCase() === 'latest' || version === LATEST_HELM3_VERSION) { - version = await getLatestHelmVersionFor("v3"); - } else if (version === LATEST_HELM2_VERSION) { - version = await getLatestHelmVersionFor("v2"); - } else if (!version.toLocaleLowerCase().startsWith('v')) { - version = 'v' + version; - } - } - - core.debug(util.format("Downloading %s", version)); - let cachedPath = await downloadHelm(version); - - try { - - if (!process.env['PATH'].startsWith(path.dirname(cachedPath))) { - core.addPath(path.dirname(cachedPath)); - } - } - catch { - //do nothing, set as output variable - } - - console.log(`Helm tool version: '${version}' has been cached at ${cachedPath}`); - core.setOutput('helm-path', cachedPath); -} - -run().catch(core.setFailed); \ No newline at end of file