nativejsx

#!/usr/bin/env node

var fs = require('fs');
var path = require('path');
var glob = require('glob');
var program = require('commander');
var nativejsx = require('../source/nativejsx.js');

function compile(files, outputDirectory) {
  files.forEach(function(file) {
    outputDirectory = outputDirectory || path.dirname(file);

    if (glob.hasMagic(file)) {
      compile(glob.sync(file), outputDirectory);
    } else {
      var jsx = nativejsx.parseSync(file);
      var extension = path.extname(file);
      var filename = path.basename(file, extension);
      var outputFilePath = path.join(outputDirectory, filename + '.js');

      fs.writeFileSync(outputFilePath, jsx, 'utf8');
    }
  });
}

program.
  version('0.1.0').
  description('A simple command line utility for nativejsx.').
  option('-o, --output <directory>', 'The directory to place compiled JSX files').
  on('--help', function() {
    console.log(' Examples:');
    console.log();
    console.log('  $ nativejsx path/awesome.jsx --output compiled/');
    console.log('  $ nativejsx path-to-jsx/**/*.jsx --output compiled/');
    console.log();
    console.log('  # Output goes to the location of the current file being processed.');
    console.log('  $ nativejsx path-to-jsx/**/*.jsx');
    console.log();
    console.log('  # All jsx is processed at once and compiled into a single file.');
    console.log('  $ cat path-to-jsx/**/*.jsx | nativejsx > large-compiled-file.js');
    console.log();
  }).
  parse(process.argv);

var hasPaths = Array.isArray(program.args) && program.args.length > 0;
var hasOutputDirectory = typeof program.output === 'string' && program.output.length > 0;

if (hasPaths && hasOutputDirectory) {
  var outputDirectory = path.join(process.cwd(), program.output);
  var exists = fs.existsSync(outputDirectory);

  if (exists) {
    var stats = fs.statSync(outputDirectory);
    var isNotDirectory = !stats.isDirectory();

    if (isNotDirectory) {
      console.error('Output path already exists as a non-directory file.');
      program.help();
      process.exit(1);
    } else {
      compile(program.args, outputDirectory);
    }
  } else {
    try {
      fs.mkdir(outputDirectory);
      compile(program.args, outputDirectory);
    } catch (error) {
      console.error(error);
      console.error('Could not create directory, %s.', program.output);
      process.exit(1);
    }
  }
} else if (hasPaths) {
  compile(program.args);
} else {
  var stdin = '';

  process.stdin.setEncoding('utf8');
  process.stdin.on('readable', function() {
    var chunk = process.stdin.read();

    if (chunk != null) {
      stdin += chunk.toString();
    }

    process.nextTick(function() {
      process.stdin.end();
    });
  });

  process.stdin.on('finish', function() {
    if (stdin) {
      process.stdout.write(
        nativejsx.transpile(stdin)
      );
    } else {
      program.help();
    }
  });
}