TESTS TESTS ADDED MORE TEST TESTED GRESOURCES TESTS TESTS I LOVE TESTS SO MUCH

- Fully covered gresource orchestrator and it helpers with tests
- Use abstract command runner INSTEAD OF SUBPROCESS in gresources
- Replaced some subprocesses by builtin functions

scripts/utils/gresource/gresource_compiler.py

@@ -0,0 +1,68 @@
+import textwrap
+from pathlib import Path
+
+from scripts.utils.command_runner.command_runner import CommandRunner
+from scripts.utils.gresource import raise_gresource_error
+from scripts.utils.logger.logger import LoggerFactory
+
+
+class GresourceCompiler:
+    def __init__(
+            self, source_folder: str, target_file: str,
+            logger_factory: LoggerFactory, runner: CommandRunner
+    ):
+        self.source_folder = source_folder
+        self.target_file = target_file
+        self.gresource_xml = target_file + ".xml"
+
+        self.logger_factory = logger_factory
+        self.runner = runner
+
+    def compile(self):
+        compile_line = self.logger_factory.create_logger()
+        compile_line.update("Compiling gnome-shell theme...")
+
+        self._create_gresource_xml()
+        self._compile_resources()
+
+        compile_line.success("Compiled gnome-shell theme.")
+
+    def _create_gresource_xml(self):
+        with open(self.gresource_xml, 'w') as gresource_xml:
+            gresource_xml.write(self._generate_gresource_xml())
+
+    def _generate_gresource_xml(self):
+        files_to_include = self._get_files_to_include()
+        nl = "\n"  # fstring doesn't support newline character
+        return textwrap.dedent(f"""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <gresources>
+                <gresource prefix="/org/gnome/shell/theme">
+                    {nl.join(files_to_include)}
+                </gresource>
+            </gresources>
+        """)
+
+    def _get_files_to_include(self):
+        source_path = Path(self.source_folder)
+        return [
+            f"<file>{file.relative_to(source_path)}</file>"
+            for file in source_path.glob('**/*')
+            if file.is_file()
+        ]
+
+    def _compile_resources(self):
+        try:
+            self._try_compile_resources()
+        except FileNotFoundError as e:
+            if "glib-compile-resources" in str(e):
+                raise_gresource_error("glib-compile-resources", e)
+            raise
+
+    def _try_compile_resources(self):
+        self.runner.run(["glib-compile-resources",
+                        "--sourcedir", self.source_folder,
+                        "--target", self.target_file,
+                        self.gresource_xml
+                        ],
+                       cwd=self.source_folder, check=True)