@angular/cli
Version:
CLI tool for Angular
79 lines • 2.87 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.dev/license
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.LocalWorkspaceHost = exports.CommandError = void 0;
/**
* @fileoverview
* This file defines an abstraction layer for operating-system or file-system operations, such as
* command execution. This allows for easier testing by enabling the injection of mock or
* test-specific implementations.
*/
const fs_1 = require("fs");
const node_child_process_1 = require("node:child_process");
const promises_1 = require("node:fs/promises");
/**
* An error thrown when a command fails to execute.
*/
class CommandError extends Error {
stdout;
stderr;
code;
constructor(message, stdout, stderr, code) {
super(message);
this.stdout = stdout;
this.stderr = stderr;
this.code = code;
}
}
exports.CommandError = CommandError;
/**
* A concrete implementation of the `Host` interface that runs on a local workspace.
*/
exports.LocalWorkspaceHost = {
stat: promises_1.stat,
existsSync: fs_1.existsSync,
runCommand: async (command, args, options = {}) => {
const signal = options.timeout ? AbortSignal.timeout(options.timeout) : undefined;
return new Promise((resolve, reject) => {
const childProcess = (0, node_child_process_1.spawn)(command, args, {
shell: false,
stdio: options.stdio ?? 'pipe',
signal,
cwd: options.cwd,
env: {
...process.env,
...options.env,
},
});
let stdout = '';
childProcess.stdout?.on('data', (data) => (stdout += data.toString()));
let stderr = '';
childProcess.stderr?.on('data', (data) => (stderr += data.toString()));
childProcess.on('close', (code) => {
if (code === 0) {
resolve({ stdout, stderr });
}
else {
const message = `Process exited with code ${code}.`;
reject(new CommandError(message, stdout, stderr, code));
}
});
childProcess.on('error', (err) => {
if (err.name === 'AbortError') {
const message = `Process timed out.`;
reject(new CommandError(message, stdout, stderr, null));
return;
}
const message = `Process failed with error: ${err.message}`;
reject(new CommandError(message, stdout, stderr, null));
});
});
},
};
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