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import os
from pathlib import Path
import sys
import ctypes
from typing import Union
from configparser import ConfigParser as config
from venv import logger
from utils.get_arg_name import get_arg_name_as_string
from utils.get_config import get_config_value
import traceback
from utils.logger import get_logger
logger = get_logger(__name__)
def set_weasyprint_library(libpath: Union[str, Path] = None, config_file: Union[str, Path] = "utils\\config.ini"):
""" Loads Weasyprint backend dependency libraries to environment """
# Check if the current platform is Windows
if sys.platform == 'win32':
#libgobject_path = #"/path/to/your/custom/glib/install/lib/libgobject-2.0.so.0"
if not libpath:
#from file_handler.file_utils import find_file
#config_file = find_file("config.ini") ##from file_handler.file_utils
## Alternate to speed up while sacrificing
from globals import config_load_models
config_file = config_load_models.config_ini
lib_path = get_config_value(Path(config_file), "LIBRARIES_CAP", "WEASYPRINT_DLL_DIRECTORIES") if not libpath else "C:\\msys64\\mingw64\\bin"
# Check if the file exists before attempting to load it
#if not os.path.exists(libobject):
if not Path(lib_path).exists():
raise FileNotFoundError(f"The specified Weasyprint DLL Directory does not exist: {lib_path}. Follow Weasyprint installation guide or provide a valid GTK3-runtime path.")
#logger.exception(f"gobject library path: {libgobject_path}") ##debug
try:
# Set a new environment variable
lib_path = lib_path ##SMY: on dev machine, using extracted 'portable' GTK3 rather than installing 'MSYS2'
os.environ["WEASYPRINT_DLL_DIRECTORIES"] = lib_path
#logger.info(f"sets Weasyprint DLL library path: {lib_path}") #debug
except Exception as exc:
tb = traceback.format_exc()
logger.exception(f"Error setting environ: weasyprint backend dependency → {exc}\n{tb}", exc_info=True) # Log the full traceback
raise RuntimeWarning(f"✗ error during setting environ: weasyprint backend dependency → {exc}\n{tb}")
def load_library(libobject_name: Union[str, Path]):
"""
Loads Weasyprint backend dependency libraries
usage: list(map(load_library, library_list)) ##SMY: map the load_library function to each item in library_list
The library list was starting to grow excessively, opt to setting environ
"""
# Check if the current platform is Windows
if sys.platform == 'win32':
#libgobject_path = #"/path/to/your/custom/glib/install/lib/libgobject-2.0.so.0"
cfg = config()
cfg.read("utils\\config.ini")
lib_path = cfg["libraries"].get(f"libobject_path", "C:\\Dat\\dev\\gtk3-runtime\\bin")
lib_object_dll = get_arg_name_as_string(libobject_name) ## future use
# Construct the path to libgobject-2.0.dll
#libgobject_path = os.path.join(os.environ.get('GLIB_PREFIX', 'C:\\glib'), 'bin', 'libgobject-2.0-0.dll')
libobject = f"{lib_path}\\{libobject_name}.dll" ##libgobject-2.0-0.dll"
#print(f"Loading gobject library: {libgobject}") #debug
# Check if the file exists before attempting to load it
#if not os.path.exists(libobject):
if not Path(libobject).exists():
raise FileNotFoundError(f"The specified library file does not exist: {libobject}")
#print(f"gobject library path: {libgobject_path}") ##debug
# Load the library using ctypes
try:
ctypes_libgobject = ctypes.CDLL(libobject)
#msg = f"libgobject-2.0-0.dll loaded successfully via ctypes. {str(ctypes_libgobject)}"
#print(msg) ##debug
except OSError as exc:
tb = traceback.format_exc()
raise RuntimeWarning(f"Failed to load library: {exc}\n{tb}") ##raise RuntimeError
## Test
#load_library("libpango-1.0-0")
#load_library("libgobject-2.0-0")
##SMY: Original implementation: TODO: for refactoring
def load_libgobject():
# Check if the current platform is Windows
if sys.platform == 'win32':
#libgobject_path = #"/path/to/your/custom/glib/install/lib/libgobject-2.0.so.0"
cfg = config()
cfg.read("utils\\config.ini")
libgobject_path = cfg["libraries"].get("libgobject_path", "C:\\Dat\\dev\\gtk3-runtime\\bin")
# Construct the path to libgobject-2.0.dll
#libgobject_path = os.path.join(os.environ.get('GLIB_PREFIX', 'C:\\glib'), 'bin', 'libgobject-2.0-0.dll')
libgobject = f"{libgobject_path}\\libgobject-2.0-0.dll"
#print(f"Loading gobject library: {libgobject}") #debug
# Check if the file exists before attempting to load it
if not os.path.exists(libgobject):
raise FileNotFoundError(f"The specified library file does not exist: {libgobject}")
#print(f"gobject library path: {libgobject_path}") ##debug
# Load the library using ctypes
try:
ctypes_libgobject = ctypes.CDLL(libgobject)
#msg = f"libgobject-2.0-0.dll loaded successfully via ctypes. {str(ctypes_libgobject)}"
#print(msg) ##debug
return ctypes_libgobject
except OSError as exc:
tb = traceback.format_exc()
raise RuntimeWarning(f"Failed to load library: {exc}\n{tb}") ##raise RuntimeError
# Load the library using ctypes (Linux/macOS)
# Construct the path to libgobject-2.0.so.0 in the custom GLib installation
#libgobject_path = os.path.join(os.environ.get('GLIB_PREFIX', '/opt/glib'), 'lib', 'libgobject-2.0.so.0')
#print("This script is intended to run on Unix-like systems, not Windows.")
else:
# Load the library using ctypes (Linux/macOS)
# Construct the path to libgobject-2.0.so.0 in the custom GLib installation
libgobject_path = os.path.join(os.environ.get('GLIB_PREFIX', '/opt/glib'), 'lib', 'libgobject-2.0.so.0')
#print("This script is intended to run on Unix-like systems, not Windows.")
return libgobject_path
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