setup-python/src/install-python.ts at main · actions/setup-python · GitHub

History

325 lines (294 loc) · 9.64 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

import * as path from 'path';

import * as core from '@actions/core';

import * as tc from '@actions/tool-cache';

import * as exec from '@actions/exec';

import {ExecOptions} from '@actions/exec';

import * as httpm from '@actions/http-client';

import * as fs from 'fs';

import * as semver from 'semver';

import {IS_WINDOWS, IS_LINUX, getDownloadFileName} from './utils.js';

import {IToolRelease} from '@actions/tool-cache';

const TOKEN = core.getInput('token');

const AUTH = !TOKEN ? undefined : `token ${TOKEN}`;

const MANIFEST_REPO_OWNER = 'actions';

const MANIFEST_REPO_NAME = 'python-versions';

const MANIFEST_REPO_BRANCH = 'main';

export const MANIFEST_URL = `https://raw.githubusercontent.com/${MANIFEST_REPO_OWNER}/${MANIFEST_REPO_NAME}/${MANIFEST_REPO_BRANCH}/versions-manifest.json`;

interface LinuxOsRelease {

id: string;

versionId: string;

}

function getLinuxOsRelease(): LinuxOsRelease | null {

try {

const content = fs.readFileSync('/etc/os-release', 'utf8');

const lines = content.split('\n');

let id = '';

let versionId = '';

for (const line of lines) {

const parts = line.split('=');

if (parts.length === 2) {

const key = parts[0].trim();

const value = parts[1].trim().replace(/^"/, '').replace(/"$/, '');

if (key === 'ID') id = value;

if (key === 'VERSION_ID') versionId = value;

}

if (id && versionId) {

return {id, versionId};

}

return null;

} catch {

return null;

}

function findRhelRelease(

semanticVersionSpec: string,

architecture: string,

manifest: tc.IToolRelease[],

osVersion: string

): tc.IToolRelease | undefined {

for (const candidate of manifest) {

const version = candidate.version;

core.debug(`check ${version} satisfies ${semanticVersionSpec}`);

if (!semver.satisfies(version, semanticVersionSpec)) continue;

const file = candidate.files.find(item => {

core.debug(

`${item.arch}===${architecture} && ${item.platform}===rhel && ${item.platform_version}===${osVersion}`

);

const archMatch = item.arch === architecture;

const platformMatch = item.platform === 'rhel';

const versionMatch =

!item.platform_version ||

item.platform_version === osVersion ||

osVersion.startsWith(item.platform_version);

return archMatch && platformMatch && versionMatch;

});

if (file) {

core.debug(`matched ${candidate.version}`);

const result = Object.assign({}, candidate);

result.files = [file];

return result;

}

return undefined;

}

const MANIFEST_FETCH_MAX_ATTEMPTS = 3;

const MANIFEST_FETCH_RETRY_BASE_DELAY_MS = 1000;

export async function findReleaseFromManifest(

semanticVersionSpec: string,

architecture: string,

manifest: tc.IToolRelease[] | null

): Promise<tc.IToolRelease | undefined> {

if (!manifest) {

manifest = await getManifest();

}

// On RHEL, tc.findFromManifest() won't match because os.platform() returns 'linux'

// but manifest entries use platform 'rhel'. Use custom filtering for RHEL.

if (IS_LINUX) {

const osRelease = getLinuxOsRelease();

if (osRelease && osRelease.id === 'rhel') {

core.debug(

`Detected RHEL ${osRelease.versionId}, using custom manifest filtering`

);

return findRhelRelease(

semanticVersionSpec,

architecture,

manifest,

osRelease.versionId

);

}

const foundRelease = await tc.findFromManifest(

semanticVersionSpec,

false,

manifest,

architecture

);

return foundRelease;

}

function isIToolRelease(obj: any): obj is IToolRelease {

return (

typeof obj === 'object' &&

obj !== null &&

typeof obj.version === 'string' &&

typeof obj.stable === 'boolean' &&

Array.isArray(obj.files) &&

obj.files.every(

(file: any) =>

typeof file.filename === 'string' &&

typeof file.platform === 'string' &&

typeof file.arch === 'string' &&

typeof file.download_url === 'string'

)

);

}

// Rejects empty or truncated manifest responses.

function isValidManifest(manifest: unknown): manifest is tc.IToolRelease[] {

return (

Array.isArray(manifest) &&

manifest.length > 0 &&

manifest.every(isIToolRelease)

);

}

function sleep(ms: number): Promise<void> {

return new Promise(resolve => setTimeout(resolve, ms));

}

// HTTP 403/429 from http-client (`statusCode`) or tool-cache (`httpStatusCode`).

function isRateLimitError(err: unknown): boolean {

const e = err as

| {httpStatusCode?: number; statusCode?: number}

| null

| undefined;

const status = e?.httpStatusCode ?? e?.statusCode;

return status === 403 || status === 429;

}

// Fetches and validates a manifest, retrying transient failures with backoff.

async function fetchValidManifest(

source: string,

fetcher: () => Promise<tc.IToolRelease[]>

): Promise<tc.IToolRelease[]> {

let lastError: Error | undefined;

let attempts = 0;

for (let attempt = 1; attempt <= MANIFEST_FETCH_MAX_ATTEMPTS; attempt++) {

attempts = attempt;

try {

const manifest = await fetcher();

if (isValidManifest(manifest)) {

return manifest;

}

throw new Error(

`The manifest fetched from ${source} is empty, truncated, or does not contain any valid tool release entries.`

);

} catch (err) {

lastError = err instanceof Error ? err : new Error(String(err));

core.debug(

`Attempt ${attempt}/${MANIFEST_FETCH_MAX_ATTEMPTS} to fetch the manifest from ${source} failed: ${lastError.message}`

);

// Rate limits won't clear within the backoff window; fall back instead.

if (isRateLimitError(err)) {

core.debug(

`${source} is rate-limited; skipping retries for this source.`

);

break;

}

if (attempt < MANIFEST_FETCH_MAX_ATTEMPTS) {

const delay = MANIFEST_FETCH_RETRY_BASE_DELAY_MS * 2 ** (attempt - 1);

core.debug(`Retrying in ${delay}ms...`);

await sleep(delay);

}

throw new Error(

`Failed to fetch a valid manifest from ${source} after ${attempts} attempt(s): ${lastError?.message}`

);

}

export async function getManifest(): Promise<tc.IToolRelease[]> {

try {

return await fetchValidManifest('the GitHub API', getManifestFromRepo);

} catch (err) {

core.debug('Fetching the manifest via the API failed.');

if (err instanceof Error) {

core.debug(err.message);

} else {

core.debug('An unexpected error occurred while fetching the manifest.');

}

try {

return await fetchValidManifest('the raw URL', getManifestFromURL);

} catch (err) {

const message = err instanceof Error ? err.message : String(err);

// Fail loudly so the action doesn't exit 0 without installing Python.

throw new Error(

`Failed to fetch the Python versions manifest. The response was empty, truncated, or invalid, and all retries were exhausted. ${message}`,

{cause: err}

);

}

export function getManifestFromRepo(): Promise<tc.IToolRelease[]> {

core.debug(

`Getting manifest from ${MANIFEST_REPO_OWNER}/${MANIFEST_REPO_NAME}@${MANIFEST_REPO_BRANCH}`

);

return tc.getManifestFromRepo(

MANIFEST_REPO_OWNER,

MANIFEST_REPO_NAME,

AUTH,

MANIFEST_REPO_BRANCH

);

}

export async function getManifestFromURL(): Promise<tc.IToolRelease[]> {

core.debug('Falling back to fetching the manifest using raw URL.');

const http: httpm.HttpClient = new httpm.HttpClient('tool-cache');

const response = await http.getJson<tc.IToolRelease[]>(MANIFEST_URL);

if (!response.result) {

throw new Error(`Unable to get manifest from ${MANIFEST_URL}`);

}

return response.result;

}

async function installPython(workingDirectory: string) {

const options: ExecOptions = {

cwd: workingDirectory,

env: {

...process.env,

...(IS_LINUX && {LD_LIBRARY_PATH: path.join(workingDirectory, 'lib')})

silent: true,

listeners: {

stdout: (data: Buffer) => {

core.info(data.toString().trim());

stderr: (data: Buffer) => {

const msg = data.toString().trim();

if (/^WARNING:/im.test(msg)) {

core.warning(msg);

} else {

core.error(msg);

}

};

if (IS_WINDOWS) {

await exec.exec('powershell', ['./setup.ps1'], options);

} else {

await exec.exec('bash', ['./setup.sh'], options);

}

export async function installCpythonFromRelease(release: tc.IToolRelease) {

if (!release.files || release.files.length === 0) {

throw new Error('No files found in the release to download.');

}

const downloadUrl = release.files[0].download_url;

core.info(`Download from "${downloadUrl}"`);

let pythonPath = '';

try {

const fileName = getDownloadFileName(downloadUrl);

pythonPath = await tc.downloadTool(downloadUrl, fileName, AUTH);

core.info('Extract downloaded archive');

let pythonExtractedFolder;

if (IS_WINDOWS) {

pythonExtractedFolder = await tc.extractZip(pythonPath);

} else {

pythonExtractedFolder = await tc.extractTar(pythonPath);

}

core.info('Execute installation script');

await installPython(pythonExtractedFolder);

} catch (err) {

if (err instanceof tc.HTTPError) {

// Rate limit?

if (err.httpStatusCode === 403) {

core.error(

`Received HTTP status code 403. This indicates a permission issue or restricted access.`

);

} else if (err.httpStatusCode === 429) {

core.info(

`Received HTTP status code 429. This usually indicates the rate limit has been exceeded`

);

} else {

core.info(err.message);

}

if (err.stack) {

core.debug(err.stack);

}

throw err;

}

setup-python/src/install-python.ts at main · actions/setup-python · GitHub

Uh oh!

Expand file tree

Breadcrumbs

install-python.ts

Latest commit

History

Breadcrumbs

install-python.ts

File metadata and controls