Create C# files from xsd files in a directory

xsd2csharp.js

var promise = require('bluebird');
var fs = promise.promisifyAll(require('fs'));
var exec = require('child_process').exec;

var commands = [];
var baseDirectory;
var outputDirectory;

if (process.argv.length < 4) {
  console.log('Please enter the two commands required.');
  console.log('1 - base directory of XSDs');
  console.log('2 - output directory of C# files');
} else {
  baseDirectory = process.argv[2];
  outputDirectory = process.argv[3];

  findXSDs(baseDirectory).then(function() {
    var failedCount = 0;
    var finalPromise = commands.reduce(function(execPromise, line) {
      return execPromise.catch(function() {
        failedCount++;
      }).finally(function() {
        return new promise(function(resolve, reject) {
          exec(line, function(err, stdout, stderr) {
            var tempDirectory = line.substring(line.indexOf(baseDirectory));
            var directory = tempDirectory.substring(0, tempDirectory.indexOf(' &&'));

            var tempFile = line.substring(0, line.indexOf('.xsd') + 4);
            var file = tempFile.substring(tempFile.lastIndexOf(' ') + 1);
            console.log('File path: ' + directory + file);

            if (stderr) {
              console.log(stderr);
              reject();
            } else {
              console.log(stdout);
              resolve();
            }
          });
        });
      });
    }, promise.resolve());

    finalPromise.catch(function() {
      failedCount++;
    }).finally(function() {
      console.log('Done. Number of failures: ' + failedCount);
    });
  });
}

function buildCommand(directory, fileName) {
  return fs.readFileAsync(directory + fileName, 'utf8').then(function(data) {
    var imports = data.split('\n').filter(function(line) {
      return line.indexOf('xsd:import') > -1;
    }).map(function(line) {
      var tempLine = line.substring(line.search(/schemaLocation="/));
      var start = tempLine.indexOf('"') + 1;
      var end = tempLine.indexOf('"', start);

      return tempLine.substring(start, end);
    });

    var joinedImports = '';
    if (imports && imports.length > 0) {
      joinedImports = imports.join(' ');
    }

    commands.push('cd ' + directory + ' && xsd ' + fileName + ' ' + joinedImports + ' /c /O:' + outputDirectory);
  });
}

function findXSDs(currentPath) {
  return fs.readdirAsync(currentPath).then(function(files) {
    if (files) {
      return promise.all(files.map(function(file) {
        if (file.endsWith('.xsd')) {
          return buildCommand(currentPath + '/', file);
        } else {
          return fs.statAsync(currentPath + '/' + file).then(function(stats) {
            if (stats.isDirectory()) {
              return findXSDs(currentPath + '/' + file);
            }
          });
        }
      }));
    }
  });
}