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"""
This is PyInstaller hook file for CEF Python. This file
helps PyInstaller find CEF Python dependencies that are
required to run final executable.
See PyInstaller docs for hooks:
https://pyinstaller.readthedocs.io/en/stable/hooks.html
"""
import glob
import os
import platform
import re
import sys
import PyInstaller
from PyInstaller.utils.hooks import is_module_satisfies, get_package_paths
from PyInstaller.compat import is_win, is_darwin, is_linux, is_py2
from PyInstaller import log as logging
# Constants
CEFPYTHON_MIN_VERSION = "57.0"
PYINSTALLER_MIN_VERSION = "3.2.1"
# Makes assumption that using "python.exe" and not "pyinstaller.exe"
# TODO: use this code to work cross-platform:
# > from PyInstaller.utils.hooks import get_package_paths
# > get_package_paths("cefpython3")
CEFPYTHON3_DIR = get_package_paths("cefpython3")[1]
CYTHON_MODULE_EXT = ".pyd" if is_win else ".so"
# Globals
logger = logging.getLogger(__name__)
# Functions
def check_platforms():
if not is_win and not is_darwin:
raise SystemExit("Error: Currently only Windows and Darwin "
"platforms are supported, see Issue #135.")
def check_pyinstaller_version():
"""Using is_module_satisfies() for pyinstaller fails when
installed using 'pip install develop.zip' command
(PyInstaller Issue #2802)."""
# Example version string for dev version of pyinstaller:
# > 3.3.dev0+g5dc9557c
version = PyInstaller.__version__
match = re.search(r"^\d+\.\d+(\.\d+)?", version)
if not (match.group(0) >= PYINSTALLER_MIN_VERSION):
raise SystemExit("Error: pyinstaller %s or higher is required"
% PYINSTALLER_MIN_VERSION)
def check_cefpython3_version():
if not is_module_satisfies("cefpython3 >= %s" % CEFPYTHON_MIN_VERSION):
raise SystemExit("Error: cefpython3 %s or higher is required"
% CEFPYTHON_MIN_VERSION)
def get_cefpython_modules():
"""Get all cefpython Cython modules in the cefpython3 package.
It returns a list of names without file extension. Eg.
'cefpython_py27'. """
pyds = glob.glob(os.path.join(CEFPYTHON3_DIR,
"cefpython_py*" + CYTHON_MODULE_EXT))
assert len(pyds) > 1, "Missing cefpython3 Cython modules"
modules = []
for path in pyds:
filename = os.path.basename(path)
mod = filename.replace(CYTHON_MODULE_EXT, "")
modules.append(mod)
return modules
def get_excluded_cefpython_modules():
"""CEF Python package includes Cython modules for various Python
versions. When using Python 2.7 pyinstaller should not
bundle modules for eg. Python 3.6, otherwise it will
cause to include Python 3 dll dependencies. Returns a list
of fully qualified names eg. 'cefpython3.cefpython_py27'."""
pyver = "".join(map(str, sys.version_info[:2]))
pyver_string = "py%s" % pyver
modules = get_cefpython_modules()
excluded = []
for mod in modules:
if pyver_string in mod:
continue
excluded.append("cefpython3.%s" % mod)
logger.info("Exclude cefpython3 module: %s" % excluded[-1])
return excluded
def get_cefpython3_datas():
"""Returning almost all of cefpython binaries as DATAS (see exception
below), because pyinstaller does strange things and fails if these are
returned as BINARIES. It first updates manifest in .dll files:
>> Updating manifest in chrome_elf.dll
And then because of that it fails to load the library:
>> hsrc = win32api.LoadLibraryEx(filename, 0, LOAD_LIBRARY_AS_DATAFILE)
>> pywintypes.error: (5, 'LoadLibraryEx', 'Access is denied.')
It is not required for pyinstaller to modify in any way
CEF binaries or to look for its dependencies. CEF binaries
does not have any external dependencies like MSVCR or similar.
The .pak .dat and .bin files cannot be marked as BINARIES
as pyinstaller would fail to find binary depdendencies on
these files.
One exception is subprocess (subprocess.exe on Windows) executable
file, which is passed to pyinstaller as BINARIES in order to collect
its dependecies.
DATAS are in format: tuple(full_path, dest_subdir).
"""
ret = list()
if is_win:
cefdatadir = "."
elif is_darwin:
cefdatadir = "."
else:
assert False, "Unsupported system {}".format(platform.system())
# Binaries, licenses and readmes in the cefpython3/ directory
for filename in os.listdir(CEFPYTHON3_DIR):
# Ignore Cython modules which are already handled by
# pyinstaller automatically.
if filename[:-len(CYTHON_MODULE_EXT)] in get_cefpython_modules():
continue
# CEF binaries and datas
extension = os.path.splitext(filename)[1]
if extension in \
[".exe", ".dll", ".pak", ".dat", ".bin", ".txt", ".so", ".plist"] \
or filename.lower().startswith("license"):
logger.info("Include cefpython3 data: {}".format(filename))
ret.append((os.path.join(CEFPYTHON3_DIR, filename), cefdatadir))
if is_darwin:
# "Chromium Embedded Framework.framework/Resources" with subdirectories
# is required. Contain .pak files and locales (each locale in separate
# subdirectory).
resources_subdir = \
os.path.join("Chromium Embedded Framework.framework", "Resources")
base_path = os.path.join(CEFPYTHON3_DIR, resources_subdir)
assert os.path.exists(base_path), \
"{} dir not found in cefpython3".format(resources_subdir)
for path, dirs, files in os.walk(base_path):
for file in files:
absolute_file_path = os.path.join(path, file)
dest_path = os.path.relpath(path, CEFPYTHON3_DIR)
ret.append((absolute_file_path, dest_path))
logger.info("Include cefpython3 data: {}".format(dest_path))
elif is_win:
# The .pak files in cefpython3/locales/ directory
locales_dir = os.path.join(CEFPYTHON3_DIR, "locales")
assert os.path.exists(locales_dir), \
"locales/ dir not found in cefpython3"
for filename in os.listdir(locales_dir):
logger.info("Include cefpython3 data: {}/{}".format(
os.path.basename(locales_dir), filename))
ret.append((os.path.join(locales_dir, filename),
os.path.join(cefdatadir, "locales")))
return ret
# ----------------------------------------------------------------------------
# Main
# ----------------------------------------------------------------------------
# Checks
check_platforms()
check_pyinstaller_version()
check_cefpython3_version()
# Info
logger.info("CEF Python package directory: %s" % CEFPYTHON3_DIR)
# Hidden imports.
# PyInstaller has no way on detecting imports made by Cython
# modules, so all pure Python imports made in cefpython .pyx
# files need to be manually entered here.
# TODO: Write a tool script that would find such imports in
# .pyx files automatically.
hiddenimports = [
"codecs",
"copy",
"datetime",
"inspect",
"json",
"os",
"platform",
"random",
"re",
"sys",
"time",
"traceback",
"types",
"urllib",
"weakref",
]
if is_py2:
hiddenimports += [
"urlparse",
]
# Excluded modules
excludedimports = get_excluded_cefpython_modules()
# Include binaries requiring to collect its dependencies
if is_darwin:
binaries = [(os.path.join(CEFPYTHON3_DIR, "subprocess"), ".")]
elif is_win:
binaries = [(os.path.join(CEFPYTHON3_DIR, "subprocess.exe"), ".")]
else:
binaries = []
# Include datas
datas = get_cefpython3_datas()
# Notify pyinstaller.spec code that this hook was executed
# and that it succeeded.
os.environ["PYINSTALLER_CEFPYTHON3_HOOK_SUCCEEDED"] = "1"
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