git flow bump versions script

bump-versions.php

<?php

/**
 * @file
 * Drush script for bumping versions according to a git release.
 */

// Get the context.
$context = drush_get_context();
if (!$context['alias']) {
  return drush_set_error('You must run this command with an alias. Example: drush @myproject.local scr /path/to/bump-versions.php --prefix=myproject');
}
$docroot = $context['alias']['root'];
if (!file_exists($docroot)) {
  return drush_set_error('Docroot does not exist!');
}
if (!drush_shell_cd_and_exec($docroot, 'git rev-parse --symbolic-full-name --abbrev-ref HEAD')) {
  return drush_set_error('Failed to get git checked out branch.');
}

if (!$custom_package_prefix = drush_get_option('prefix')) {
  return drush_set_error('You must specify the prefix for your custom packages, e.g. `myproject`');
}


// Allow user to pass in an arbitrary release string.
if (!$release = drush_get_option('release')) {
  $branch = current(drush_shell_exec_output());
  // Parse the release.
  if (strpos($branch, 'release') !== 0 || !strpos($branch, '/')) {
    return drush_set_error('You are not on a release branch.');
  }
  $release = substr($branch, strpos($branch, '/') + 1);
}
// Convert the version string to a Drupal compatible version string.
$version = explode('.', $release);
$major = $version[0];
$minor = $version[1];
$patch = $version[2];

$drupal_version = sprintf('7.x-%d.%d-rc%d', $major, $minor, $patch);
if (!drush_confirm(dt('Set the version string to !version?', array('!version' => $drupal_version)))) {
  return drush_user_abort();
}
drush_log(dt('Setting the Drupal version string to !version', array('!version' => $drupal_version)), 'ok');

// Get list of projects.
$ret = drush_invoke_process($context['alias'], 'pml', array(), array('pipe'), FALSE);
$modules = array_keys($ret['object']);
$custom_package_names = array();
foreach ($modules as $module) {
  if (strpos($module, $custom_package_prefix) === 0) {
    $custom_package_names[] = $module;
  }
}

// Get package info.
drush_log(dt('Getting package info for !count projects...', array('!count' => count($custom_package_names))), 'ok');
$package_info = drush_invoke_process($context['alias'], 'pmi', $custom_package_names, array(), FALSE);
$custom_packages = array();
foreach ($package_info['object'] as $package) {
  $custom_packages[$package['extension']] = $package['path'];
}

// Update the release string.
foreach ($custom_packages as $package => $path) {
  $info_file = file($docroot . '/' . $path . '/' . $package . '.info');
  $new_info_file = array();
  foreach ($info_file as $key => $line) {
    if (strpos($line, 'version') === 0) {
      $new_info_file[] = 'version = ' . $drupal_version . "\n";
    }
    else {
      $new_info_file[] = $line;
    }
  }
  // Write the file.
  if (file_put_contents($docroot . '/' . $path . '/' . $package . '.info', $new_info_file)) {
    drush_log(dt('Successfully incremented version for project !project', array('!project' => $package)), 'ok');
  }
  else {
    drush_set_error('Failed to increment version for project !project', array('!project' => $project));
  }
}