Refactor into get_file_paths_and_names() function (#81)

* Refactor into `get_file_paths_and_names()` function

* Add default `filename-format` in PhpDoc

* Update doc (whitespace, order, optional, type)

* Use ternary for `$destination_dir_path`

* Use ternary for `$archive_file_name`

* Use word "template" not "parameter" in comment

* Fix return array type

* Add missing closing `---`

* Regenerate README

---------

Co-authored-by: Pascal Birchler <[email protected]>
Co-authored-by: Daniel Bachhuber <[email protected]>

Author: 3 people

README.md

@@ -57,8 +57,11 @@ script in each project.
 		---
 
 	[--filename-format=<filename-format>]
-		Use a custom format for archive filename. Defaults to '{name}.{version}'.
-		This is ignored if a custom filename is provided or version does not exist.
+		Use a custom format for archive filename. Available substitutions: {name}, {version}.
+		This is ignored if the <target> parameter is provided or the version cannot be determined.
+		---
+		default: "{name}.{version}"
+		---
 
 ## Installing