# ------------------------------------------------------------------
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# Copyright (c) 2020 PyInstaller Development Team.
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#
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# This file is distributed under the terms of the GNU General Public
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# License (version 2.0 or later).
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#
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# The full license is available in LICENSE.GPL.txt, distributed with
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# this software.
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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# ------------------------------------------------------------------
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# Hook for weasyprint: https://pypi.python.org/pypi/WeasyPrint
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# Tested on version weasyprint 54.0 using Windows 10 and python 3.8
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# Note that weasyprint < 54.0 does not work on python 3.8 due to https://github.com/Kozea/WeasyPrint/issues/1435
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# For weasyprint < 53.0 the required libs are
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# libs = [
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# 'gobject-2.0', 'libgobject-2.0-0', 'libgobject-2.0.so.0', 'libgobject-2.0.dylib',
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# 'pango-1.0', 'libpango-1.0-0', 'libpango-1.0.so.0', 'libpango-1.0.dylib',
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# 'pangocairo-1.0', 'libpangocairo-1.0-0', 'libpangocairo-1.0.so.0', 'libpangocairo-1.0.dylib',
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# 'fontconfig', 'libfontconfig', 'libfontconfig-1.dll', 'libfontconfig.so.1', 'libfontconfig-1.dylib',
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# 'pangoft2-1.0', 'libpangoft2-1.0-0', 'libpangoft2-1.0.so.0', 'libpangoft2-1.0.dylib'
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# ]
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import ctypes.util
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import os
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from pathlib import Path
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from PyInstaller.compat import is_win
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from PyInstaller.depend.utils import _resolveCtypesImports
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from PyInstaller.utils.hooks import collect_data_files, logger
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datas = collect_data_files('weasyprint')
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binaries = []
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fontconfig_config_dir_found = False
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# On Windows, a GTK3-installation provides fontconfig and the corresponding fontconfig conf files. We have to add these
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# for weasyprint to correctly use fonts.
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# NOTE: Update these lists if weasyprint requires more libraries
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fontconfig_libs = [
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'fontconfig-1', 'fontconfig', 'libfontconfig', 'libfontconfig-1.dll', 'libfontconfig.so.1', 'libfontconfig-1.dylib'
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]
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libs = [
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'gobject-2.0-0', 'gobject-2.0', 'libgobject-2.0-0', 'libgobject-2.0.so.0', 'libgobject-2.0.dylib',
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'pango-1.0-0', 'pango-1.0', 'libpango-1.0-0', 'libpango-1.0.so.0', 'libpango-1.0.dylib',
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'harfbuzz', 'harfbuzz-0.0', 'libharfbuzz-0', 'libharfbuzz.so.0', 'libharfbuzz.so.0', 'libharfbuzz.0.dylib',
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'pangoft2-1.0-0', 'pangoft2-1.0', 'libpangoft2-1.0-0', 'libpangoft2-1.0.so.0', 'libpangoft2-1.0.dylib'
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]
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try:
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lib_basenames = []
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for lib in libs:
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libname = ctypes.util.find_library(lib)
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if libname is not None:
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lib_basenames += [os.path.basename(libname)]
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for lib in fontconfig_libs:
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libname = ctypes.util.find_library(lib)
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if libname is not None:
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lib_basenames += [os.path.basename(libname)]
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# Try to load fontconfig config files on Windows from a GTK-installation
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if is_win:
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fontconfig_config_dir = Path(libname).parent.parent / 'etc/fonts'
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if fontconfig_config_dir.exists() and fontconfig_config_dir.is_dir():
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datas += [(str(fontconfig_config_dir), 'etc/fonts')]
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fontconfig_config_dir_found = True
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if lib_basenames:
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resolved_libs = _resolveCtypesImports(lib_basenames)
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for resolved_lib in resolved_libs:
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binaries.append((resolved_lib[1], '.'))
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# Try to load fontconfig config files on other OS
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fontconfig_config_dir = Path('/etc/fonts')
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if fontconfig_config_dir.exists() and fontconfig_config_dir.is_dir():
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datas += [(str(fontconfig_config_dir), 'etc/fonts')]
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fontconfig_config_dir_found = True
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except Exception as e:
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logger.warning('Error while trying to find system-installed depending libraries: %s', e)
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if not binaries:
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logger.warning('Depending libraries not found - weasyprint will likely fail to work!')
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if not fontconfig_config_dir_found:
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logger.warning(
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'Fontconfig configuration files not found - weasyprint will likely throw warnings and use default fonts!'
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)
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