Add compile script

Author: Chi-teck

DEVELOPMENT.md

@@ -34,6 +34,6 @@ Then after you have logged out and in the _dcg_ development version will be acce
 
 ## Building PHAR executable
 
-1. Install [Box 2](https://github.com/box-project/box2).
-2. Run `scripts/buld.sh` script.
+1. Install dependencies without dev packages `composer install --no-dev`.
+2. Run `scripts/compile.sh` script.
 3. Test the generated archive: `php dcg.phar --version`.

box.json

@@ -0,0 +1,73 @@
+#!/usr/bin/env php
+<?php
+
+/**
+ * @file
+ * Compiles DCG into a PHAR file.
+ */
+
+set_error_handler(function ($errno, $errstr, $errfile, $errline): void {
+  fprintf(STDERR, "Error: %s on %s: %s\n", $errstr, $errfile, $errline);
+  exit(1);
+});
+
+$name = 'dcg.phar';
+$phar = new \Phar($name);
+$phar->startBuffering();
+
+$stub = <<< EOF
+#!/usr/bin/env php
+<?php
+
+Phar::mapPhar('$name');
+require 'phar://$name/bin/dcg';
+__HALT_COMPILER();
+EOF;
+
+$phar->setStub($stub);
+
+$files = array_merge(
+  ['bin/dcg', 'LICENSE.txt'],
+  dcg_scan_dir('src'),
+  dcg_scan_dir('templates'),
+  dcg_scan_dir('resources'),
+  dcg_scan_dir('vendor', 'php'),
+);
+foreach ($files as $file) {
+  $extension = pathinfo($file, PATHINFO_EXTENSION);
+  $content = $extension == 'php' ?
+    php_strip_whitespace($file) : file_get_contents($file);
+  if ($file == 'bin/dcg') {
+    $content = preg_replace('{^#!/usr/bin/env php\s*}', '', $content);
+  }
+  $phar->addFromString($file, $content);
+  printf("Added file: %s\n", $file);
+}
+
+$meta_data = [
+  'build_time' => date('c'),
+  'total_files' => count($files),
+  'php_version' => PHP_VERSION,
+];
+$phar->setMetadata($meta_data);
+
+$phar->stopBuffering();
+print "---------------------------------\n";
+printf("Total added: %s\n" , count($files));
+printf("PHAR file: %s\n", $phar->getPath());
+
+/**
+ * Recursively scans directory.
+ */
+function dcg_scan_dir(string $path, string $extension = NULL): array {
+  $iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path));
+  $files = [];
+  foreach ($iterator as $file) {
+    if ($file->isDir() || ($extension && $extension != $file->getExtension())) {
+      fprintf(STDERR, "\033[33mSkipped %s\033[0m\n", $file->getPathName());
+      continue;
+    }
+    $files[] = $file->getPathname();
+  }
+  return $files;
+}

scripts/build.sh

@@ -27,6 +27,11 @@ class Application extends BaseApplication {
    */
   public const ROOT = __DIR__ . '/..';
 
+  /**
+   * DCG version
+   */
+  public const VERSION = '2.0.0-dev';
+
   /**
    * Path to templates directory.
    */
@@ -36,13 +41,7 @@ class Application extends BaseApplication {
    * Creates the application.
    */
   public static function create(?ContainerInterface $container = NULL): Application {
-    // This gets substituted with git version when DCG is packaged to PHAR file.
-    $version = '@git-version@';
-    // Fallback for composer installation.
-    if (!\is_numeric($version[0])) {
-      $version = 'UNKNOWN';
-    }
-    $application = new static('Drupal Code Generator', $version);
+    $application = new static('Drupal Code Generator', self::VERSION);
 
     $helper_set = new HelperSet([
       new QuestionHelper(),