Add destination file support to MakePoCommand

README.md

@@ -212,7 +212,7 @@ wp i18n make-mo <source> [<destination>]
 		Path to an existing PO file or a directory containing multiple PO files.
 
 	[<destination>]
-		Path to the destination directory for the resulting MO files. Defaults to the source directory.
+		Path to the destination file or directory for the resulting MO files. Defaults to the source directory.
 
 **EXAMPLES**
 
@@ -222,6 +222,9 @@ wp i18n make-mo <source> [<destination>]
     # Create a MO file from a single PO file in a specific directory.
     $ wp i18n make-mo example-plugin-de_DE.po languages
 
+    # Create a MO file from a single PO file to a specific file destination
+    $ wp i18n make-mo example-plugin-de_DE.po languages/bar.mo
+
 
 
 ### wp i18n update-po

src/MakeMoCommand.php

@@ -20,7 +20,7 @@ class MakeMoCommand extends WP_CLI_Command {
 	 * : Path to an existing PO file or a directory containing multiple PO files.
 	 *
 	 * [<destination>]
-	 * : Path to the destination directory for the resulting MO files. Defaults to the source directory.
+	 * : Path to the destination file or directory for the resulting MO files. Defaults to the source directory.
 	 *
 	 * ## EXAMPLES
 	 *
@@ -30,6 +30,9 @@ class MakeMoCommand extends WP_CLI_Command {
 	 *     # Create a MO file from a single PO file in a specific directory.
 	 *     $ wp i18n make-mo example-plugin-de_DE.po languages
 	 *
+	 *     # Create a MO file from a single PO file to a specific file destination
+	 *     $ wp i18n make-mo example-plugin-de_DE.po languages/bar.mo
+	 *
 	 * @when before_wp_load
 	 *
 	 * @throws WP_CLI\ExitException
@@ -40,9 +43,19 @@ public function __invoke( $args, $assoc_args ) {
 			WP_CLI::error( 'Source file or directory does not exist!' );
 		}
 
-		$destination = is_file( $source ) ? dirname( $source ) : $source;
+		$destination      = is_file( $source ) ? dirname( $source ) : $source;
+		$custom_file_name = null;
 		if ( isset( $args[1] ) ) {
-			$destination = $args[1];
+			$destination           = $args[1];
+			$destionation_pathinfo = pathinfo( $destination );
+			// Destination is a file, make sure source is also a file
+			if ( ! empty( $destionation_pathinfo['filename'] ) ) {
+				if ( ! is_file( $source ) ) {
+					WP_CLI::error( 'Destination file not supported when source is a directory!' );
+				}
+				$destination      = $destionation_pathinfo['dirname'];
+				$custom_file_name = $destionation_pathinfo['filename'] . '.' . $destionation_pathinfo['extension'];
+			}
 		}
 
 		// Two is_dir() checks in case of a race condition.
@@ -71,8 +84,12 @@ public function __invoke( $args, $assoc_args ) {
 				continue;
 			}
 
-			$file_basename    = basename( $file->getFilename(), '.po' );
-			$destination_file = "{$destination}/{$file_basename}.mo";
+			$file_basename = basename( $file->getFilename(), '.po' );
+			$file_name     = $file_basename . '.mo';
+			if ( $custom_file_name ) {
+				$file_name = $custom_file_name;
+			}
+			$destination_file = "{$destination}/{$file_name}";
 
 			$translations = Translations::fromPoFile( $file->getPathname() );
 			if ( ! $translations->toMoFile( $destination_file ) ) {

tests/MakeMoTest.php

@@ -0,0 +1,83 @@
+<?php
+
+namespace WP_CLI\I18n\Tests;
+
+use Gettext\Translation;
+use WP_CLI\I18n\PotGenerator;
+use Gettext\Translations;
+use WP_CLI\Tests\TestCase;
+use WP_CLI\I18n\MakeMoCommand;
+use WP_CLI\Utils;
+
+class MakeMoTest extends TestCase {
+	public function set_up() {
+		parent::set_up();
+		$this->temp_dir = Utils\get_temp_dir() . uniqid( 'wp-cli-test-make-po-', true ) . '/';
+		mkdir( $this->temp_dir );
+	}
+
+	public function tear_down() {
+		rmdir( $this->temp_dir );
+
+		parent::tear_down();
+	}
+
+	/**
+	 * Test wp i18n make-mo foo.po
+	 */
+	public function test_single_file_generation() {
+		$file_path = $this->temp_dir . '/test.po';
+		touch( $file_path );
+		$make_mo = new MakeMoCommand();
+		$make_mo(
+			array(
+				$file_path,
+			),
+			array()
+		);
+		$this->assertTrue( is_file( $this->temp_dir . '/test.mo' ), 'MO file not generated' );
+		unlink( $file_path );
+		unlink( $this->temp_dir . '/test.mo' );
+	}
+
+	/**
+	 * Test wp i18n make-mo foo.po bar.mo
+	 */
+	public function test_single_file_generation_named() {
+		$file_path    = $this->temp_dir . '/test.po';
+		$mo_file_path = $this->temp_dir . '/bar.mo';
+		touch( $file_path );
+		$make_mo = new MakeMoCommand();
+		$make_mo(
+			array(
+				$file_path,
+				$mo_file_path,
+			),
+			array()
+		);
+		$this->assertTrue( is_file( $mo_file_path ), 'MO file not generated' );
+		unlink( $file_path );
+		unlink( $mo_file_path );
+	}
+
+	/**
+	 * Test wp i18n make-mo foo/
+	 */
+	public function test_whole_directory_generation() {
+		$base_directory = $this->temp_dir . '/foo';
+		mkdir( $base_directory, 0777, true );
+		$file_path = $base_directory . '/test.po';
+		touch( $file_path );
+		$make_mo = new MakeMoCommand();
+		$make_mo(
+			array(
+				$base_directory,
+			),
+			array()
+		);
+		$this->assertTrue( is_file( $base_directory . '/test.mo' ), 'MO file not generated' );
+		unlink( $file_path );
+		unlink( $base_directory . '/test.mo' );
+		rmdir( $base_directory );
+	}
+}