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/**

* @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

*/

import { spawn } from 'node:child_process';

import { COPYFILE_FICLONE } from 'node:constants';

import fs from 'node:fs';

import path, { dirname, join, relative, resolve } from 'node:path';

import { fileURLToPath } from 'node:url';

const __dirname = path.dirname(fileURLToPath(import.meta.url));

const baseDir = resolve(`${__dirname}/..`);

const bazelCmd = process.env.BAZEL ?? `yarn --cwd "${baseDir}" bazel`;

const distRoot = join(baseDir, '/dist');

type BuildMode = 'local' | 'snapshot' | 'release';

function _copy(from: string, to: string) {

// Create parent folder if necessary.

if (!fs.existsSync(dirname(to))) {

fs.mkdirSync(dirname(to), { recursive: true });

}

// Error out if destination already exists.

if (fs.existsSync(to)) {

throw new Error(`Path ${to} already exist...`);

}

from = relative(process.cwd(), from);

to = relative(process.cwd(), to);

fs.copyFileSync(from, to, COPYFILE_FICLONE);

}

function _recursiveCopy(from: string, to: string, logger: Console) {

if (!fs.existsSync(from)) {

logger.error(`File "${from}" does not exist.`);

process.exit(4);

}

if (fs.statSync(from).isDirectory()) {

fs.readdirSync(from).forEach((fileName) => {

_recursiveCopy(join(from, fileName), join(to, fileName), logger);

});

} else {

_copy(from, to);

}

}

function _clean(logger: Console) {

logger.info('Cleaning...');

logger.info(' Removing dist/...');

return fs.promises.rm(join(__dirname, '../dist'), {

force: true,

recursive: true,

maxRetries: 3,

});

}

function _exec(cmd: string, captureStdout: boolean, logger: Console): Promise<string> {

return new Promise((resolve, reject) => {

const proc = spawn(cmd, {

stdio: 'pipe',

shell: true,

});

let output = '';

proc.stdout.on('data', (data) => {

logger.info(data.toString().trim());

if (captureStdout) {

output += data.toString().trim();

}

});

proc.stderr.on('data', (data) => logger.info(data.toString().trim()));

proc.on('error', (error) => {

logger.error(error.message);

});

proc.on('exit', (status) => {

if (status !== 0) {

reject(`Command failed: ${cmd}`);

} else {

resolve(output);

}

});

});

}

async function _build(logger: Console, mode: BuildMode): Promise<string[]> {

logger.group(`Building (mode=${mode})...`);

logger.group('Finding targets...');

const queryTargetsCmd =

`${bazelCmd} query --output=label "attr(name, npm_package_archive, //packages/...` +

' except //packages/angular/ssr/schematics/...)"';

const targets = (await _exec(queryTargetsCmd, true, logger)).split(/\r?\n/);

logger.groupEnd();

// If we are in release mode, run `bazel clean` to ensure the execroot and action cache

// are not populated. This is necessary because targets using `npm_package` rely on

// workspace status variables for the package version. Such NPM package targets are not

// rebuilt if only the workspace status variables change. This could result in accidental

// re-use of previously built package output with a different `version` in the `package.json`.

if (mode == 'release') {

logger.info('Building in release mode. Resetting the Bazel execroot and action cache.');

await _exec(`${bazelCmd} clean`, false, logger);

}

logger.group('Building targets...');

await _exec(`${bazelCmd} build --config=${mode} ${targets.join(' ')}`, false, logger);

logger.groupEnd();

logger.groupEnd();

return targets;

}

export default async function (

argv: { local?: boolean; snapshot?: boolean } = {},

): Promise<{ name: string; outputPath: string; tarPath: string }[]> {

const logger = globalThis.console;

const bazelBin = await _exec(`${bazelCmd} info bazel-bin`, true, logger);

await _clean(logger);

let buildMode: BuildMode;

if (argv.local) {

buildMode = 'local';

} else if (argv.snapshot) {

buildMode = 'snapshot';

} else {

buildMode = 'release';

}

const targets = await _build(logger, buildMode);

const output = [];

logger.group('Moving packages and tars to dist/');

for (const target of targets) {

const packageDir = target.replace(/\/\/packages\/(.*):npm_package_archive/, '$1');

const bazelOutDir = join(bazelBin, 'packages', packageDir, 'npm_package');

const tarPathInBin = `${bazelBin}/packages/${packageDir}/npm_package_archive.tgz`;

const packageJsonPath = `${bazelOutDir}/package.json`;

const packageName = JSON.parse(fs.readFileSync(packageJsonPath, 'utf8')).name;

const destDir = `${distRoot}/${packageName}`;

logger.info(packageName);

_recursiveCopy(bazelOutDir, destDir, logger);

const tarPath = `${distRoot}/${packageName.replace('@', '_').replace('/', '_')}.tgz`;

_copy(tarPathInBin, tarPath);

output.push({ name: packageDir, outputPath: destDir, tarPath });

}

logger.groupEnd();

return output;

}