centro-ui/scripts/bundle.js

[](https://badge.fury.io/js/centro-ui)

/**
 * Produces production builds of the React application (index.vr.js) and the
 * client-side implementation (client.js).
 */

/**
 *  IMPORTANT: This file needs to be in sync with all build updates in the official React VR library
 */

'use strict';

const child_process = require('child_process');
const fs = require('fs');
const path = require('path');

const args = process.argv.slice(2);

function buildScript(root, buildDir, input, output) {
    // Allow overriding the CLI location with an env variable
    const cliLocation = process.env.RN_CLI_LOCATION ||
        path.resolve('node_modules', 'react-native', 'local-cli', 'cli.js');
    return new Promise((resolve, reject) => {
        const npm = child_process.spawn(
            (/^win/.test(process.platform) ? 'node.exe' : 'node'),
            [
                cliLocation,
                'bundle',
                '--entry-file',
                input,
                '--platform',
                'vr',
                '--bundle-output',
                output,
                '--dev',
                'false',
                '--assets-dest',
                buildDir,
            ],
            {stdio: 'inherit', cwd: root}
        );
        npm.on('close', (code) => {
            if (code !== 0) {
                reject(code);
            }
            resolve();
        });
    });
}

function hasPackage(dir) {
    const packagePath = path.join(dir, 'package.json');
    try {
        fs.statSync(packagePath);
    } catch (e) {
        return false;
    }
    const pkg = require(packagePath);
    if (
        pkg &&
        pkg.dependencies &&
        pkg.dependencies['react-vr']
    ) {
        return true;
    }
    return false;
}

let projectDir = process.cwd();
const buildDir = path.join(projectDir, 'vr', 'build');

while (!hasPackage(projectDir)) {
    const next = path.join(projectDir, '..');
    if (projectDir === next) {
        console.log('Could not find a React VR project directory');
        process.exit(1);
    }
    projectDir = path.join(projectDir, '..');
}

new Promise((resolve, reject) => {
    try {
        const stat = fs.statSync(buildDir);
        if (stat.isDirectory()) {
            return resolve();
        }
    } catch (e) {}
    fs.mkdir(path.join(projectDir, 'vr', 'build'), (err) => {
        if (err) {
            console.log('Failed to create `vr/build` directory');
            return reject(1);
        }
        resolve();
    });
}).then(() => {
    return Promise.all([
        buildScript(
            projectDir,
            buildDir,
            path.resolve(projectDir, 'examples/index.vr.js'),
            path.resolve(projectDir, 'vr', 'build', 'index.bundle.js')
        ),
        buildScript(
            projectDir,
            buildDir,
            path.resolve(projectDir, 'vr', 'client.js'),
            path.resolve(projectDir, 'vr', 'build', 'client.bundle.js')
        ),
    ]);
}).then(() => {
    console.log(
        'Production versions were successfully built.' +
        'They can be found at ' + path.resolve(projectDir, 'vr', 'build')
    );
}).catch((err) => {
    console.log(
        'An error occurred during the bundling process. Exited with code ' + err +
        '.\nLook at the packager output above to see what went wrong.'
    );
    process.exit(1);
});