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

features/makemo.feature

@@ -10,7 +10,17 @@ Feature: Generate MO files from PO files
       Error: Source file or directory does not exist!
       """
     And the return code should be 1
-
+  Scenario: Bail for destination being a file when source is a folder
+    Given an empty foo directory
+    And a foo/foo.po file:
+    """
+    """
+    When I try `wp i18n make-mo foo test.mo `
+    Then STDERR should contain:
+      """
+      Error: Destination file not supported when source is a directory!
+      """
+    And the return code should be 1
   Scenario: Uses source folder as destination by default
     Given an empty foo-plugin directory
     And a foo-plugin/foo-plugin-de_DE.po file:
@@ -44,7 +54,28 @@ Feature: Generate MO files from PO files
       """
     And the return code should be 0
     And the foo-plugin/foo-plugin-de_DE.mo file should exist
-
+  Scenario: Uses the provided destination file name
+    Given a foo.po file:
+    """
+    """
+    When I run `wp i18n make-mo foo.po bar.mo`
+    Then STDOUT should contain:
+      """
+      Success: Created 1 file.
+      """
+    And the return code should be 0
+    And the bar.mo file should exist
+  Scenario: Preserves the provided source name with no destination
+    Given a foo.po file:
+    """
+    """
+    When I run `wp i18n make-mo foo.po`
+    Then STDOUT should contain:
+      """
+      Success: Created 1 file.
+      """
+    And the return code should be 0
+    And the foo.mo file should exist
   Scenario: Allows setting custom destination directory
     Given an empty foo-plugin directory
     And a foo-plugin/foo-plugin-de_DE.po file:

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];
+			$destination_pathinfo = pathinfo( $destination );
+			// Destination is a file, make sure source is also a file
+			if ( ! empty( $destination_pathinfo['filename'] ) && ! empty( $destination_pathinfo['extension'] ) ) {
+				if ( ! is_file( $source ) ) {
+					WP_CLI::error( 'Destination file not supported when source is a directory!' );
+				}
+				$destination      = $destination_pathinfo['dirname'];
+				$custom_file_name = $destination_pathinfo['filename'] . '.' . $destination_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 ) ) {