angular-cn/aio/aio-builds-setup/dockerbuild/scripts-js/lib/upload-server/build-creator.ts

82 lines
2.4 KiB
TypeScript

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