Hook up functional components of the command

Author: danielbachhuber

command.php

@@ -21,17 +21,51 @@
  *   - targz
  * ---
  *
- * @when before_wp_Load
+ * @when before_wp_load
  */
 $dist_archive_command = function( $args, $assoc_args ) {
 
 	list( $path ) = $args;
-	$path = rtrim( $path, '/' ) . '/';
+	$path = rtrim( realpath( $path ), '/' );
+	if ( ! is_dir( $path ) ) {
+		WP_CLI::error( 'Provided path is not a directory.' );
+	}
 
-	$dist_ignore_path = $path . '.distignore';
+	$dist_ignore_path = $path . '/.distignore';
 	if ( ! file_exists( $dist_ignore_path ) ) {
 		WP_CLI::error( 'No .distignore file found.' );
 	}
 
+	$maybe_ignored_files = explode( PHP_EOL, file_get_contents( $dist_ignore_path ) );
+	$ignored_files = array();
+	$archive_base = basename( $path );
+	foreach( $maybe_ignored_files as $file ) {
+		$file = trim( $file );
+		if ( 0 === strpos( $file, '#' ) || empty( $file ) ) {
+			continue;
+		}
+		if ( is_dir( $path . '/' . $file ) ) {
+			$file .= '/*';
+		}
+		$ignored_files[] = $archive_base . '/' . $file;
+	}
+
+	if ( 'zip' === $assoc_args['format'] ) {
+		$archive_file = $archive_base . '.zip';
+		$excludes = implode( ' --exclude ', $ignored_files );
+		if ( ! empty( $excludes ) ) {
+			$excludes = ' --exclude ' . $excludes;
+		}
+		chdir( dirname( $path ) );
+		$cmd = "zip -r {$archive_file} {$archive_base} {$excludes}";
+		WP_CLI::debug( "Running: {$cmd}", 'dist-archive' );
+		$ret = WP_CLI::launch( escapeshellcmd( $cmd ), false, true );
+		if ( 0 === $ret->return_code ) {
+			WP_CLI::success( "Created {$archive_file}" );
+		} else {
+			WP_CLI::error( $ret->stderr );
+		}
+	}
+
 };
 WP_CLI::add_command( 'dist-archive', $dist_archive_command );