82 lines
2.4 KiB
TypeScript
82 lines
2.4 KiB
TypeScript
// Imports
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import * as cp from 'child_process';
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import {EventEmitter} from 'events';
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import * as fs from 'fs';
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import * as path from 'path';
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import * as shell from 'shelljs';
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import {assertNotMissingOrEmpty} from '../common/utils';
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import {CreatedBuildEvent} from './build-events';
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import {UploadError} from './upload-error';
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// Classes
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export class BuildCreator extends EventEmitter {
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// Constructor
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constructor(protected buildsDir: string) {
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super();
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assertNotMissingOrEmpty('buildsDir', buildsDir);
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}
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// Methods - Public
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public create(pr: string, sha: string, archivePath: string): Promise<any> {
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const prDir = path.join(this.buildsDir, pr);
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const shaDir = path.join(prDir, sha);
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let dirToRemoveOnError: string;
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return Promise.
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all([this.exists(prDir), this.exists(shaDir)]).
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then(([prDirExisted, shaDirExisted]) => {
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if (shaDirExisted) {
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throw new UploadError(403, `Request to overwrite existing directory: ${shaDir}`);
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}
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dirToRemoveOnError = prDirExisted ? shaDir : prDir;
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return Promise.resolve().
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then(() => shell.mkdir('-p', shaDir)).
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then(() => this.extractArchive(archivePath, shaDir)).
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then(() => this.emit(CreatedBuildEvent.type, new CreatedBuildEvent(+pr, sha)));
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}).
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catch(err => {
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if (dirToRemoveOnError) {
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shell.rm('-rf', dirToRemoveOnError);
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}
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if (!(err instanceof UploadError)) {
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err = new UploadError(500, `Error while uploading to directory: ${shaDir}\n${err}`);
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}
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throw err;
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});
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}
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// Methods - Protected
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protected exists(fileOrDir: string): Promise<boolean> {
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return new Promise(resolve => fs.access(fileOrDir, err => resolve(!err)));
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}
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protected extractArchive(inputFile: string, outputDir: string): Promise<void> {
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return new Promise<void>((resolve, reject) => {
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const cmd = `tar --extract --gzip --directory "${outputDir}" --file "${inputFile}"`;
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cp.exec(cmd, (err, _stdout, stderr) => {
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if (err) {
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return reject(err);
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}
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if (stderr) {
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console.warn(stderr);
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}
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try {
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// Undocumented signature (see https://github.com/shelljs/shelljs/pull/663).
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(shell as any).chmod('-R', 'a-w', outputDir);
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shell.rm('-f', inputFile);
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resolve();
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} catch (err) {
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reject(err);
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}
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});
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});
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}
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}
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