@angular/cli
Version:
CLI tool for Angular
112 lines • 4.06 kB
JavaScript
"use strict";
/**
* @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.LocalDevserver = void 0;
exports.getDevserverKey = getDevserverKey;
exports.createDevServerNotFoundError = createDevServerNotFoundError;
// Log messages that we want to catch to identify the build status.
const BUILD_SUCCEEDED_MESSAGE = 'Application bundle generation complete.';
const BUILD_FAILED_MESSAGE = 'Application bundle generation failed.';
const WAITING_FOR_CHANGES_MESSAGE = 'Watch mode enabled. Watching for file changes...';
const CHANGES_DETECTED_START_MESSAGE = '❯ Changes detected. Rebuilding...';
const CHANGES_DETECTED_SUCCESS_MESSAGE = '✔ Changes detected. Rebuilding...';
const BUILD_START_MESSAGES = [CHANGES_DETECTED_START_MESSAGE];
const BUILD_END_MESSAGES = [
BUILD_SUCCEEDED_MESSAGE,
BUILD_FAILED_MESSAGE,
WAITING_FOR_CHANGES_MESSAGE,
CHANGES_DETECTED_SUCCESS_MESSAGE,
];
/**
* A local Angular development server managed by the MCP server.
*/
class LocalDevserver {
host;
port;
workspacePath;
project;
devserverProcess = null;
serverLogs = [];
buildInProgress = false;
latestBuildLogStartIndex = undefined;
latestBuildStatus = 'unknown';
constructor({ host, port, workspacePath, project, }) {
this.host = host;
this.port = port;
this.workspacePath = workspacePath;
this.project = project;
}
start() {
if (this.devserverProcess) {
throw Error('Dev server already started.');
}
const args = ['serve'];
if (this.project) {
args.push(this.project);
}
args.push(`--port=${this.port}`);
this.devserverProcess = this.host.spawn('ng', args, {
stdio: 'pipe',
cwd: this.workspacePath,
});
this.devserverProcess.stdout?.on('data', (data) => {
this.addLog(data.toString());
});
this.devserverProcess.stderr?.on('data', (data) => {
this.addLog(data.toString());
});
this.devserverProcess.stderr?.on('close', () => {
this.stop();
});
this.buildInProgress = true;
}
addLog(log) {
this.serverLogs.push(log);
if (BUILD_START_MESSAGES.some((message) => log.startsWith(message))) {
this.buildInProgress = true;
this.latestBuildLogStartIndex = this.serverLogs.length - 1;
}
else if (BUILD_END_MESSAGES.some((message) => log.startsWith(message))) {
this.buildInProgress = false;
// We consider everything except a specific failure message to be a success.
this.latestBuildStatus = log.startsWith(BUILD_FAILED_MESSAGE) ? 'failure' : 'success';
}
}
stop() {
this.devserverProcess?.kill();
this.devserverProcess = null;
}
getServerLogs() {
return [...this.serverLogs];
}
getMostRecentBuild() {
return {
status: this.latestBuildStatus,
logs: this.serverLogs.slice(this.latestBuildLogStartIndex),
};
}
isBuilding() {
return this.buildInProgress;
}
}
exports.LocalDevserver = LocalDevserver;
function getDevserverKey(workspacePath, projectName) {
return `${workspacePath}:${projectName}`;
}
function createDevServerNotFoundError(devservers) {
if (devservers.size === 0) {
return new Error('No development servers are currently running.');
}
const runningServers = Array.from(devservers.values())
.map((server) => `- Project '${server.project}' in workspace path '${server.workspacePath}'`)
.join('\n');
return new Error(`Dev server not found. Currently running servers:\n${runningServers}\n` +
'Please provide the correct workspace and project arguments.');
}
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