mirror of
https://github.com/imarkoff/Marble-shell-theme.git
synced 2025-09-18 09:17:54 -07:00
Fixed GDM reinstallation, extracted gresource and update-alternatives logic
This commit is contained in:
Vladyslav Hroshev
275
scripts/gdm.py
275
scripts/gdm.py
@@ -1,33 +1,24 @@
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import functools
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import os
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import subprocess
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from typing import Optional, TypeAlias
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from typing import Optional
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from .install.colors_definer import ColorsDefiner
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from .theme import Theme
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from .utils import remove_properties, remove_keywords
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from . import config
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from .utils.alternatives_updater import AlternativesUpdater
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from .utils.console import Console, Color, Format
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from .utils.files_labeler import FilesLabeler
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Path: TypeAlias = str | bytes
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class ThemePrepare:
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"""
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Theme object prepared for installation
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"""
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def __init__(self, theme: Theme, theme_file, label: Optional[str] = None):
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self.theme = theme
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self.theme_file = theme_file
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self.label = label
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from .utils.gresource import Gresource, GresourceBackupNotFoundError
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class GlobalTheme:
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def __init__(self, colors_json, theme_folder, destination_folder, destination_file, temp_folder: str,
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mode=None, is_filled=False):
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"""Class to install global theme for GDM"""
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def __init__(self,
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colors_json: ColorsDefiner, theme_folder: str,
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destination_folder: str, destination_file: str, temp_folder: str,
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mode: Optional[str] = None, is_filled = False
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):
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"""
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Initialize GlobalTheme class
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:param colors_json: location of a JSON file with color values
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:param theme_folder: raw theme location
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:param destination_folder: folder where themes will be installed
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@@ -35,70 +26,39 @@ class GlobalTheme:
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:param mode: theme mode (light or dark)
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:param is_filled: if True, the theme will be filled
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"""
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self.colors_json = colors_json
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self.theme_folder = theme_folder
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self.destination_folder = destination_folder
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self.destination_file = destination_file
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self.temp_folder = temp_folder
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self.backup_file = f"{self.destination_file}.backup"
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self.backup_trigger = "\n/* Marble theme */\n"
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self.extracted_theme: str = os.path.join(self.temp_folder, config.extracted_gdm_folder)
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self.gresource_file = os.path.join(self.destination_folder, self.destination_file)
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self.themes: list[ThemePrepare] = []
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self.is_filled = is_filled
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self.mode = mode
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self.themes: list[ThemePrepare] = []
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self.__is_installed_trigger = "\n/* Marble theme */\n"
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self.__gresource_file = os.path.join(self.destination_folder, self.destination_file)
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self.__gresource_temp_folder = os.path.join(self.temp_folder, config.extracted_gdm_folder)
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self.__gresource = Gresource(self.destination_file, self.__gresource_temp_folder, self.destination_folder)
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def prepare(self):
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self.__extract()
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if self.__is_installed():
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Console.Line().info("Theme is installed. Reinstalling...")
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self.__gresource.use_backup_gresource()
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self.__gresource.extract()
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self.__find_themes()
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def __extract(self):
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"""Extract gresource files to temp folder"""
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extract_line = Console.Line()
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extract_line.update("Extracting gresource files...")
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def __is_installed(self) -> bool:
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if not hasattr(self, '__is_installed_cached'):
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with open(self.__gresource_file, "rb") as f:
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self.__is_installed_cached = self.__is_installed_trigger.encode() in f.read()
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resources_list_response = subprocess.run(
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["gresource", "list", self.gresource_file],
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capture_output=True, text=True, check=False
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)
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if resources_list_response.stderr:
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extract_line.error(f"Failed to extract resources: {resources_list_response.stderr.strip()}")
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raise Exception(f"gresource could not process the theme file: {self.gresource_file}")
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resources = resources_list_response.stdout.strip().split("\n")
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prefix = "/org/gnome/shell/theme/"
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try:
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for resource in resources:
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resource_path = resource.replace(prefix, "")
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output_path = os.path.join(self.extracted_theme, resource_path)
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os.makedirs(os.path.dirname(output_path), exist_ok=True)
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with open(output_path, 'wb') as f:
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subprocess.run(["gresource", "extract", self.gresource_file, resource], stdout=f, check=True)
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extract_line.success("Extracted gresource files.")
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except FileNotFoundError as e:
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if "gresource" in str(e):
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self.__raise_gresource_error(e)
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raise
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@staticmethod
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def __raise_gresource_error(e: Exception):
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print("Error: 'gresource' command not found.")
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print("Please install the glib2-devel package:")
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print(" - For Fedora/RHEL: sudo dnf install glib2-devel")
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print(" - For Ubuntu/Debian: sudo apt install libglib2.0-dev")
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print(" - For Arch: sudo pacman -S glib2-devel")
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raise Exception("Missing required dependency: glib2-devel") from e
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return self.__is_installed_cached
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def __find_themes(self):
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extracted_theme_files = os.listdir(self.extracted_theme)
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extracted_theme_files = os.listdir(self.__gresource_temp_folder)
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allowed_modes = ("dark", "light")
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allowed_css = ("gnome-shell-dark", "gnome-shell-light", "gnome-shell")
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@@ -110,13 +70,13 @@ class GlobalTheme:
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mode = last_mode if last_mode in allowed_modes else None
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self.__append_theme(style_name, mode=mode or self.mode, label=mode)
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def __append_theme(self, theme_type: str, mode=None, label: Optional[str] = None):
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def __append_theme(self, theme_type: str, mode = None, label: Optional[str] = None):
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"""Helper to create theme objects"""
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theme = Theme(theme_type, self.colors_json, self.theme_folder,
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self.extracted_theme, self.temp_folder,
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self.__gresource_temp_folder, self.temp_folder,
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mode=mode, is_filled=self.is_filled)
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theme.prepare()
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theme_file = os.path.join(self.extracted_theme, f"{theme_type}.css")
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theme_file = os.path.join(self.__gresource_temp_folder, f"{theme_type}.css")
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self.themes.append(ThemePrepare(theme=theme, theme_file=theme_file, label=label))
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def install(self, hue, sat=None):
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@@ -124,34 +84,16 @@ class GlobalTheme:
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if os.geteuid() != 0:
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raise Exception("Root privileges required to install GDM theme")
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if self.__is_installed():
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Console.Line().info("Theme is installed. Reinstalling...")
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self.gresource_file += ".backup"
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self.__generate_themes(hue, 'Marble', sat)
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self.__backup()
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# generate gnome-shell-theme.gresource.xml
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with open(f"{self.extracted_theme}/{self.destination_file}.xml", 'w') as gresource_xml:
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generated_xml = self.__generate_gresource_xml()
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gresource_xml.write(generated_xml)
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self.__compile_resources()
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install_line = Console.Line()
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install_line.update("Moving compiled theme to system folder...")
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subprocess.run(["sudo", "cp", "-f",
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f"{self.extracted_theme}/{self.destination_file}",
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f"{self.destination_folder}/{self.destination_file}"],
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check=True)
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install_line.success("Theme moved to system folder.")
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self.__gresource.compile()
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if not self.__is_installed():
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self.__gresource.backup()
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self.__gresource.move()
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self.__update_alternatives()
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def __is_installed(self) -> bool:
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with open(self.gresource_file, "rb") as f:
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return self.backup_trigger.encode() in f.read()
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def __generate_themes(self, hue: int, color: str, sat: Optional[int]=None):
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def __generate_themes(self, hue: int, color: str, sat: Optional[int] = None):
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"""Generate theme files for gnome-shell-theme.gresource.xml"""
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for theme_prepare in self.themes:
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if theme_prepare.label is not None:
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@@ -164,60 +106,14 @@ class GlobalTheme:
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self.__add_gnome_styles(theme_prepare.theme)
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theme_prepare.theme.install(hue, color, sat, destination=self.extracted_theme)
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theme_prepare.theme.install(hue, color, sat, destination=self.__gresource_temp_folder)
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def __add_gnome_styles(self, theme: Theme):
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"""Add gnome styles to the start of the file"""
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with open(f"{theme.destination_folder}/{theme.theme_type}.css", 'r') as gnome_theme:
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gnome_styles = gnome_theme.read() + self.backup_trigger
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gnome_styles = gnome_theme.read() + self.__is_installed_trigger
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theme.add_to_start(gnome_styles)
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def __backup(self):
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if self.__is_installed():
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return
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backup_line = Console.Line()
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backup_line.update("Backing up default theme...")
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subprocess.run(["cp", "-aT", self.gresource_file, f"{self.gresource_file}.backup"],
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cwd=self.destination_folder, check=True)
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backup_line.success("Backed up default theme.")
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def __generate_gresource_xml(self):
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files_to_include = []
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for root, dirs, filenames in os.walk(self.extracted_theme):
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for filename in filenames:
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# Get a path relative to extracted_theme directory
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full_path = os.path.join(root, filename)
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rel_path = os.path.relpath(full_path, self.extracted_theme)
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files_to_include.append(f"<file>{rel_path}</file>")
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nl = "\n" # fstring doesn't support newline character
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return f"""<?xml version="1.0" encoding="UTF-8"?>
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<gresources>
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<gresource prefix="/org/gnome/shell/theme">
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{nl.join(files_to_include)}
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</gresource>
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</gresources>"""
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def __compile_resources(self):
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compile_line = Console.Line()
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compile_line.update("Compiling gnome-shell theme...")
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try:
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subprocess.run(["glib-compile-resources",
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"--sourcedir", self.extracted_theme,
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"--target", f"{self.extracted_theme}/{self.destination_file}",
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f"{self.destination_file}.xml"
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],
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cwd=self.extracted_theme, check=True)
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except FileNotFoundError as e:
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if "glib-compile-resources" in str(e):
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self.__raise_gresource_error(e)
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raise
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compile_line.success("Theme compiled.")
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def __update_alternatives(self):
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link = os.path.join(self.destination_folder, config.ubuntu_gresource_link)
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name = config.ubuntu_gresource_link
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@@ -228,17 +124,13 @@ class GlobalTheme:
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if self.__is_installed():
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removing_line = Console.Line()
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removing_line.update("Theme is installed. Removing...")
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backup_path = os.path.join(self.destination_folder, self.backup_file)
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dest_path = os.path.join(self.destination_folder, self.destination_file)
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if os.path.isfile(backup_path):
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subprocess.run(["sudo", "mv", backup_path, dest_path], check=True)
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try:
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self.__gresource.restore()
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removing_line.success("Global theme removed successfully. Restart GDM to apply changes.")
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else:
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except GresourceBackupNotFoundError:
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formatted_shell = Console.format("gnome-shell", color=Color.BLUE, format_type=Format.BOLD)
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removing_line.error(f"Backup file not found. Try reinstalling {formatted_shell} package.")
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else:
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Console.Line().error("Theme is not installed. Nothing to remove.")
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Console.Line().warn("If theme is still installed globally, try reinstalling gnome-shell package.")
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@@ -249,80 +141,9 @@ class GlobalTheme:
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AlternativesUpdater.remove(name, path)
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class AlternativesUpdater:
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@staticmethod
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def ubuntu_specific(func):
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"""
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Decorator for Ubuntu-specific functionality.
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Silently ignores errors when not running on Ubuntu systems.
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"""
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@functools.wraps(func)
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def wrapper(*args, **kwargs):
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try:
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result = func(*args, **kwargs)
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return result
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except FileNotFoundError as e:
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if not "update-alternatives" in str(e):
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raise
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return None
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return wrapper
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@staticmethod
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@ubuntu_specific
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def install_and_set(link: str, name: str, path: Path, priority: int = 0):
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AlternativesUpdater.install(link, name, path, priority)
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AlternativesUpdater.set(name, path)
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@staticmethod
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@ubuntu_specific
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def install(link: str, name: str, path: Path, priority: int = 0):
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"""
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Add an alternative to the system
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:param link: Absolute path with file name where the link will be created
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:param name: Name of the alternative
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:param path: An absolute path to the file that will be linked
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:param priority: Priority of the alternative; Higher number means higher priority
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Example:
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install(/usr/share/gnome-shell/gdm-theme.gresource,
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gdm-theme.gresource, /usr/share/gnome-shell/gnome-shell-theme.gresource)
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"""
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subprocess.run([
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"update-alternatives", "--quiet", "--install",
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link, name, str(path), str(priority)
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], check=True)
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Console.Line().success(f"Installed {name} alternative.")
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@staticmethod
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@ubuntu_specific
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def set(name: str, path: Path):
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"""
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Set path as alternative to name in system
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:param name: Name of the alternative
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:param path: An absolute path to the file that will be linked
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Example:
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set(gdm-theme.gresource, /usr/share/gnome-shell/gnome-shell-theme.gresource)
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"""
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subprocess.run([
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"update-alternatives", "--quiet", "--set",
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name, str(path)
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], check=True)
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@staticmethod
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@ubuntu_specific
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def remove(name: str, path: Path):
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"""
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Remove alternative from system
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:param name: Name of the alternative
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:param path: An absolute path to the file that will be linked
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Example:
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remove(gdm-theme.gresource, /usr/share/gnome-shell/gnome-shell-theme.gresource)
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"""
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subprocess.run([
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"update-alternatives", "--quiet", "--remove",
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name, str(path)
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], check=True)
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Console.Line().success(f"Removed {name} alternative.")
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class ThemePrepare:
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"""Theme data class prepared for installation"""
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def __init__(self, theme: Theme, theme_file, label: Optional[str] = None):
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self.theme = theme
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self.theme_file = theme_file
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self.label = label
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86
scripts/utils/alternatives_updater.py
Normal file
86
scripts/utils/alternatives_updater.py
Normal file
@@ -0,0 +1,86 @@
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import functools
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import subprocess
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from typing import TypeAlias
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|
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from scripts.utils.console import Console
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|
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PathString: TypeAlias = str | bytes
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class AlternativesUpdater:
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"""
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Manages update-alternatives for Ubuntu.
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Ignores errors if update-alternatives not found.
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"""
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@staticmethod
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def ubuntu_specific(func):
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@functools.wraps(func)
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def wrapper(*args, **kwargs):
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try:
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result = func(*args, **kwargs)
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return result
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except FileNotFoundError as e:
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if not "update-alternatives" in str(e):
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raise
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return None
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|
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return wrapper
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|
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@staticmethod
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@ubuntu_specific
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def install_and_set(link: str, name: str, path: PathString, priority: int = 0):
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AlternativesUpdater.install(link, name, path, priority)
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AlternativesUpdater.set(name, path)
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|
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@staticmethod
|
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@ubuntu_specific
|
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def install(link: str, name: str, path: PathString, priority: int = 0):
|
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"""
|
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Add an alternative to the system
|
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:param link: Absolute path with file name where the link will be created
|
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:param name: Name of the alternative
|
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:param path: An absolute path to the file that will be linked
|
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:param priority: Priority of the alternative; Higher number means higher priority
|
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|
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Example:
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install(/usr/share/gnome-shell/gdm-theme.gresource,
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gdm-theme.gresource, /usr/share/gnome-shell/gnome-shell-theme.gresource)
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"""
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subprocess.run([
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"update-alternatives", "--quiet", "--install",
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link, name, str(path), str(priority)
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], check=True)
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Console.Line().success(f"Installed {name} alternative.")
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|
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@staticmethod
|
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@ubuntu_specific
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def set(name: str, path: PathString):
|
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"""
|
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Set path as alternative to name in system
|
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:param name: Name of the alternative
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:param path: An absolute path to the file that will be linked
|
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|
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Example:
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set(gdm-theme.gresource, /usr/share/gnome-shell/gnome-shell-theme.gresource)
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"""
|
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subprocess.run([
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"update-alternatives", "--quiet", "--set",
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name, str(path)
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], check=True)
|
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|
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@staticmethod
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@ubuntu_specific
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def remove(name: str, path: PathString):
|
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"""
|
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Remove alternative from system
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:param name: Name of the alternative
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||||
:param path: An absolute path to the file that will be linked
|
||||
|
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Example:
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remove(gdm-theme.gresource, /usr/share/gnome-shell/gnome-shell-theme.gresource)
|
||||
"""
|
||||
subprocess.run([
|
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"update-alternatives", "--quiet", "--remove",
|
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name, str(path)
|
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], check=True)
|
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Console.Line().success(f"Removed {name} alternative.")
|
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162
scripts/utils/gresource.py
Normal file
162
scripts/utils/gresource.py
Normal file
@@ -0,0 +1,162 @@
|
||||
import os
|
||||
import subprocess
|
||||
import textwrap
|
||||
from pathlib import Path
|
||||
|
||||
from scripts.utils.console import Console
|
||||
|
||||
|
||||
class GresourceBackupNotFoundError(FileNotFoundError):
|
||||
pass
|
||||
|
||||
|
||||
class Gresource:
|
||||
"""Handles the extraction and compilation of gresource files for GNOME Shell themes."""
|
||||
|
||||
def __init__(self, gresource_file: str, temp_folder: str, destination: str):
|
||||
"""
|
||||
:param gresource_file: The name of the gresource file to be processed.
|
||||
:param temp_folder: The temporary folder where resources will be extracted.
|
||||
:param destination: The destination folder where the compiled gresource file will be saved.
|
||||
"""
|
||||
self.gresource_file = gresource_file
|
||||
self.temp_folder = temp_folder
|
||||
self.destination = destination
|
||||
|
||||
self.__temp_gresource = os.path.join(temp_folder, gresource_file)
|
||||
self.__destination_gresource = os.path.join(destination, gresource_file)
|
||||
self.__source_gresource = self.__destination_gresource
|
||||
self.__gresource_xml = os.path.join(temp_folder, f"{gresource_file}.xml")
|
||||
|
||||
def use_backup_gresource(self):
|
||||
if not self.__source_gresource.endswith(".backup"):
|
||||
self.__source_gresource += ".backup"
|
||||
if not os.path.exists(self.__source_gresource):
|
||||
raise GresourceBackupNotFoundError()
|
||||
|
||||
def extract(self):
|
||||
extract_line = Console.Line()
|
||||
extract_line.update("Extracting gresource files...")
|
||||
|
||||
resources = self.__get_resources_list()
|
||||
self.__extract_resources(resources)
|
||||
|
||||
extract_line.success("Extracted gresource files.")
|
||||
|
||||
def __get_resources_list(self):
|
||||
resources_list_response = subprocess.run(
|
||||
["gresource", "list", self.__source_gresource],
|
||||
capture_output=True, text=True, check=False
|
||||
)
|
||||
|
||||
if resources_list_response.stderr:
|
||||
raise Exception(f"gresource could not process the theme file: {self.__source_gresource}")
|
||||
|
||||
return resources_list_response.stdout.strip().split("\n")
|
||||
|
||||
def __extract_resources(self, resources: list[str]):
|
||||
prefix = "/org/gnome/shell/theme/"
|
||||
try:
|
||||
for resource in resources:
|
||||
resource_path = resource.replace(prefix, "")
|
||||
output_path = os.path.join(self.temp_folder, resource_path)
|
||||
os.makedirs(os.path.dirname(output_path), exist_ok=True)
|
||||
|
||||
with open(output_path, 'wb') as f:
|
||||
subprocess.run(
|
||||
["gresource", "extract", self.__source_gresource, resource],
|
||||
stdout=f, check=True
|
||||
)
|
||||
except FileNotFoundError as e:
|
||||
if "gresource" in str(e):
|
||||
self.__raise_gresource_error(e)
|
||||
raise
|
||||
|
||||
@staticmethod
|
||||
def __raise_gresource_error(e: Exception):
|
||||
print("Error: 'gresource' command not found.")
|
||||
print("Please install the glib2-devel package:")
|
||||
print(" - For Fedora/RHEL: sudo dnf install glib2-devel")
|
||||
print(" - For Ubuntu/Debian: sudo apt install libglib2.0-dev")
|
||||
print(" - For Arch: sudo pacman -S glib2-devel")
|
||||
raise Exception("Missing required dependency: glib2-devel") from e
|
||||
|
||||
def compile(self):
|
||||
compile_line = Console.Line()
|
||||
compile_line.update("Compiling gnome-shell theme...")
|
||||
|
||||
self.__create_gresource_xml()
|
||||
self.__compile_resources()
|
||||
|
||||
compile_line.success("Theme compiled.")
|
||||
|
||||
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):
|
||||
temp_path = Path(self.temp_folder)
|
||||
return [
|
||||
f"<file>{file.relative_to(temp_path)}</file>"
|
||||
for file in temp_path.glob('**/*')
|
||||
if file.is_file()
|
||||
]
|
||||
|
||||
def __compile_resources(self):
|
||||
try:
|
||||
subprocess.run(["glib-compile-resources",
|
||||
"--sourcedir", self.temp_folder,
|
||||
"--target", self.__temp_gresource,
|
||||
self.__gresource_xml
|
||||
],
|
||||
cwd=self.temp_folder, check=True)
|
||||
except FileNotFoundError as e:
|
||||
if "glib-compile-resources" in str(e):
|
||||
self.__raise_gresource_error(e)
|
||||
raise
|
||||
|
||||
def backup(self):
|
||||
backup_line = Console.Line()
|
||||
backup_line.update("Backing up gresource files...")
|
||||
|
||||
subprocess.run(["cp", "-aT",
|
||||
self.__destination_gresource,
|
||||
f"{self.__destination_gresource}.backup"],
|
||||
check=True)
|
||||
|
||||
backup_line.success("Backed up gresource files.")
|
||||
|
||||
def restore(self):
|
||||
backup_gresource = f"{self.__destination_gresource}.backup"
|
||||
|
||||
if not os.path.exists(backup_gresource):
|
||||
raise GresourceBackupNotFoundError()
|
||||
|
||||
subprocess.run(["sudo", "mv", "-f",
|
||||
backup_gresource,
|
||||
self.__destination_gresource],
|
||||
check=True)
|
||||
|
||||
|
||||
def move(self):
|
||||
move_line = Console.Line()
|
||||
move_line.update("Moving gresource files...")
|
||||
|
||||
subprocess.run(["sudo", "cp", "-f",
|
||||
self.__temp_gresource,
|
||||
self.__destination_gresource],
|
||||
check=True)
|
||||
|
||||
move_line.success("Moved gresource files.")
|
||||
Reference in New Issue
Block a user