electron-compile/src/cli.js

Electron supporting package to compile JS and CSS in Electron applications

#!/usr/bin/env node

import './babel-maybefill';
import path from 'path';
import mkdirp from 'mkdirp';

import {createCompilerHostFromProjectRoot} from './config-parser';
import {forAllFiles} from './for-all-files';

process.on('unhandledRejection', (e) => {
  d(e.message || e);
  d(e.stack || '');
});

process.on('uncaughtException', (e) => {
  d(e.message || e);
  d(e.stack || '');
});

export async function main(appDir, sourceDirs, cacheDir) {
  let compilerHost = null;
  if (!cacheDir || cacheDir.length < 1) {
    cacheDir = '.cache';
  }

  let rootCacheDir = path.join(appDir, cacheDir);
  mkdirp.sync(rootCacheDir);

  if (process.env.NODE_ENV !== 'production') {
    console.log(`Using NODE_ENV = ${process.env.NODE_ENV || 'development'}`);
  }

  d(`main: ${appDir}, ${JSON.stringify(sourceDirs)}`);
  try {
    compilerHost = await createCompilerHostFromProjectRoot(appDir, rootCacheDir);
  } catch (e) {
    console.error(`Couldn't set up compilers: ${e.message}`);
    d(e.stack);

    throw e;
  }

  await Promise.all(sourceDirs.map((dir) => forAllFiles(dir, async (f) => {
    try {
      d(`Starting compilation for ${f}`);
      await compilerHost.compile(f);
    } catch (e) {
      console.error(`Failed to compile file: ${f}`);
      console.error(e.message);

      d(e.stack);
    }
  })));

  d('Saving out configuration');
  await compilerHost.saveConfiguration();
}

const d = require('debug-electron')('electron-compile');

const yargs = require('yargs')
  .usage('Usage: electron-compile --appdir [root-app-dir] paths...')
  .alias('a', 'appdir')
  .describe('a', 'The top-level application directory (i.e. where your package.json is)')
  .default('a', process.cwd())
  .alias('c', 'cachedir')
  .describe('c', 'The directory to put the cache')
  .default('c', '.cache')
  .help('h')
  .alias('h', 'help')
  .epilog('Copyright 2015');

if (process.mainModule === module) {
  const argv = yargs.argv;

  if (!argv._ || argv._.length < 1) {
    yargs.showHelp();
    process.exit(-1);
  }

  const sourceDirs = argv._;
  const appDir = argv.a;
  const cacheDir = argv.c;

  main(appDir, sourceDirs, cacheDir)
    .then(() => process.exit(0))
    .catch((e) => {
      console.error(e.message || e);
      d(e.stack);

      console.error("Compilation failed!\nFor extra information, set the DEBUG environment variable to '*'");
      process.exit(-1);
    });
}