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vscode-react-native/src/common/node

src/common/node/childProcess.ts

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a31b007cunknown10 years ago1// Copyright (c) Microsoft Corporation. All rights reserved.
2// Licensed under the MIT license. See LICENSE file in the project root for details.
3
3fb37ad5unknown10 years ago4import * as child_process from "child_process";
5import Q = require("q");
6
7export interface IExecResult {
8process: child_process.ChildProcess;
9outcome: Q.Promise<Buffer>;
10}
11
45944d15Meena Kunnathur Balakrishnan10 years ago12export interface ISpawnResult {
13spawnedProcess: child_process.ChildProcess;
5b0582f3digeff10 years ago14stdin: NodeJS.WritableStream;
15stdout: NodeJS.ReadableStream;
16stderr: NodeJS.ReadableStream;
3d69a9b4digeff10 years ago17outcome: Q.Promise<void>;
45944d15Meena Kunnathur Balakrishnan10 years ago18}
19
3fb37ad5unknown10 years ago20interface IExecOptions {
21cwd?: string;
22stdio?: any;
23env?: any;
24encoding?: string;
25timeout?: number;
26maxBuffer?: number;
27killSignal?: string;
28}
29
30interface ISpawnOptions {
31cwd?: string;
32stdio?: any;
33env?: any;
34detached?: boolean;
35}
36
37export class ChildProcess {
38public exec(command: string, options: IExecOptions = {}): IExecResult {
39let outcome = Q.defer<Buffer>();
40
41let execProcess = child_process.exec(command, options, (error: Error, stdout: Buffer, stderr: Buffer) => {
42if (error) {
43outcome.reject({ error: error, stderr: stderr});
44} else {
45outcome.resolve(stdout);
46}
47});
48
49return { process: execProcess, outcome: outcome.promise };
50}
51
52public execToString(command: string, options: IExecOptions = {}): Q.Promise<string> {
53return this.exec(command).outcome.then(stdout => stdout.toString());
54}
55
c3a987a7Meena Kunnathur Balakrishnan10 years ago56public spawnWithExitHandler(command: string, args?: string[], options: ISpawnOptions = {}): ISpawnResult {
3d69a9b4digeff10 years ago57let outcome = Q.defer<void>();
3fb37ad5unknown10 years ago58
59let spawnedProcess = child_process.spawn(command, args, options);
60spawnedProcess.once("error", (error: any) => {
61outcome.reject({ error: error });
62});
6c330a04dlebu10 years ago63spawnedProcess.once("exit", (code: number) => {
3fb37ad5unknown10 years ago64if (code === 0) {
3d69a9b4digeff10 years ago65outcome.resolve(void 0);
6c330a04dlebu10 years ago66} else {
67outcome.reject({error: code});
3fb37ad5unknown10 years ago68}
69});
70
b70ce8b3Meena10 years ago71return {
72spawnedProcess: spawnedProcess,
73stdin: spawnedProcess.stdin,
74stdout: spawnedProcess.stdout,
3fb37ad5unknown10 years ago75stderr: spawnedProcess.stderr,
b70ce8b3Meena10 years ago76outcome: outcome.promise };
3fb37ad5unknown10 years ago77}
c3a987a7Meena Kunnathur Balakrishnan10 years ago78
79public spawn(command: string, args?: string[], options: ISpawnOptions = {}): ISpawnResult {
3d69a9b4digeff10 years ago80let outcome = Q.defer<void>();
c3a987a7Meena Kunnathur Balakrishnan10 years ago81let spawnedProcess = child_process.spawn(command, args, options);
82spawnedProcess.once("error", (error: any) => {
83outcome.reject({ error: error });
84});
85
86return {
87spawnedProcess: spawnedProcess,
88stdin: spawnedProcess.stdin,
89stdout: spawnedProcess.stdout,
90stderr: spawnedProcess.stderr,
91outcome: outcome.promise
92};
93}
3fb37ad5unknown10 years ago94}