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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

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 = os.path.join(

os.path.dirname(sys.executable),

'Lib', 'site-packages', 'cefpython3')

if platform.system() == "Windows":

CYTHON_MODULE_EXT = ".pyd"

else:

CYTHON_MODULE_EXT = ".so"

# Globals

logger = logging.getLogger(__name__)

# Functions

def check_platforms():

if platform.system() != "Windows":

raise SystemExit("Error: Currently only Windows platform is "

" 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+", 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 all cefpython binaries as DATAS, 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.

DATAS are in format: tuple(full_path, dest_subdir).

"""

ret = list()

# 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[:-4] in get_cefpython_modules():

continue

# CEF binaries and datas

if filename[-4:] in [".exe", ".dll", ".so", ".pak", ".dat", ".bin",

".txt"]\

or filename in ["License", "subprocess"]:

logger.info("Include cefpython3 data: %s" % filename)

ret.append((os.path.join(CEFPYTHON3_DIR, filename),

""))

# 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: %s/%s" % (

os.path.basename(locales_dir), filename))

ret.append((os.path.join(locales_dir, filename),

"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 sys.version_info.major == 2:

hiddenimports += [

"urlparse",

]

# Excluded modules

excludedimports = get_excluded_cefpython_modules()

# Include binaries

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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