feat: add Multi-Export CLI

multi_export_cli.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+cd "$(dirname "$0")" &&
+exec python3 -m oomox_gui.multi_export_cli "$@"

oomox_gui/multi_export_cli.py

@@ -0,0 +1,68 @@
+import os
+import sys
+from typing import TYPE_CHECKING, Final
+
+from gi.repository import Gdk, GLib
+
+from oomox_gui.config import COLORS_DIR, USER_COLORS_DIR, USER_EXPORT_CONFIG_DIR
+from oomox_gui.main import OomoxGtkApplication
+from oomox_gui.multi_export import CONFIG_FILE_PREFIX, MultiExportDialog
+from oomox_gui.theme_file_parser import read_colorscheme_from_path
+
+if TYPE_CHECKING:
+    from .theme_file import ThemeT
+
+
+NUM_ARGS: Final = 2
+
+
+def print_help() -> None:
+    print(f"Usage: {sys.argv[0]} EXPORT_LAYOUT_PATH THEMIX_THEME_PATH")
+    print()
+    print(
+        f"\tEXPORT_LAYOUT_PATH:\tpath to config file with"
+        f" `{CONFIG_FILE_PREFIX}` prefix inside `{USER_EXPORT_CONFIG_DIR}`",
+    )
+    print(
+        f"\tTHEMIX_THEME_PATH:\tpath to theme file,"
+        f" for example inside `{COLORS_DIR}` or `{USER_COLORS_DIR}`",
+    )
+
+
+def main() -> None:
+    if len(sys.argv) < (NUM_ARGS + 1):
+        print_help()
+        sys.exit(1)
+
+    export_layout_path = sys.argv[1]
+    export_layout_name = os.path.basename(export_layout_path).rsplit(
+        ".json", maxsplit=1,
+    )[0].split(
+        CONFIG_FILE_PREFIX, maxsplit=1,
+    )[1]
+    themix_theme_path = sys.argv[2]
+    themix_theme_name = os.path.basename(themix_theme_path).rsplit(
+        ".themix", maxsplit=1,
+    )[0]
+
+    def callback(theme: "ThemeT") -> None:
+        app = OomoxGtkApplication(show_window=False)
+
+        def export_callback(_me: MultiExportDialog) -> None:
+            app.quit()
+
+        multi_export = MultiExportDialog(
+            transient_for=app.window,  # type: ignore[arg-type]
+            colorscheme=theme,
+            theme_name=themix_theme_name,
+            export_layout=export_layout_name,
+            export_callback=export_callback,
+        )
+        Gdk.threads_add_idle(GLib.PRIORITY_LOW, multi_export.export_all)
+        app.run([])
+
+    read_colorscheme_from_path(themix_theme_path, callback=callback)
+
+
+if __name__ == "__main__":
+    main()