Create block: Ensure $slug is replaced with passed slug (WordPress#66528

)

* Add --targetDir flag to allow targeting a directory where to scaffold the plugin/files.

* Not using the targetDir when in --no-plugin mode

* Change the name of the flag to match others and update changelog.

* WIP commit.

* Add logic to generate the paths for the root and block files in one place.

* Add a new parameter to allow passing the path once rather than generating it in the function.

* Modify the other functions to use the generated paths.

* Update the command description.

* Update packages/create-block/CHANGELOG.md

* Refactor the handling for the root directory

* Improve the documentation for target dir

* Reorder CLI options in the docs

* Ensure that $slug is replaced.

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Co-authored-by: Greg Ziółkowski <[email protected]>

Co-authored-by: ryanwelcher <[email protected]>
Co-authored-by: gziolo <[email protected]>
Co-authored-by: t-hamano <[email protected]>

packages/create-block/lib/output.js

@@ -18,7 +18,10 @@ const writeOutputTemplate = async ( inputFile, outputFile, view ) => {
 	if ( renderedFile.trim().length ) {
 		const outputFilePath = join( view.rootDirectory, outputFile );
 		await makeDir( dirname( outputFilePath ) );
-		writeFile( outputFilePath, renderedFile );
+		writeFile(
+			outputFilePath.replace( /\$slug/g, view.slug ),
+			renderedFile
+		);
 	}
 };