Source/ThirdParty/ANGLE/scripts/update_chrome_angle.py

#!/usr/bin/python3
#
# Copyright 2016 The ANGLE Project Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# update_chrome_angle.py:
#   Helper script that copies ANGLE libraries into the Chromium Canary (on Windows) or Dev (on
#   Linux) installed directory. Testing ANGLE this way is much faster than compiling Chromium from
#   source. The script checks for the most recent build in a set of search paths, and copies that
#   into:
#
#    - /opt/google/chrome-unstable on Linux
#    - the most recent Canary installation folder on Windows.
#
# Only works on Linux and Windows.

import glob, sys, os, shutil

# Set of search paths.
script_dir = os.path.dirname(sys.argv[0])
os.chdir(os.path.join(script_dir, ".."))

source_paths = glob.glob('out/*')

is_windows = sys.platform == 'cygwin' or sys.platform.startswith('win')

if is_windows:
    # Default Canary installation path.
    chrome_folder = os.path.join(os.environ['LOCALAPPDATA'], 'Google', 'Chrome SxS', 'Application')
    libs_to_copy = ['libGLESv2.dll', 'libEGL.dll']
    optional_libs_to_copy = []

else:
    # Must be Linux
    chrome_folder = '/opt/google/chrome-unstable'
    libs_to_copy = ['libGLESv2.so', 'libEGL.so']
    # Optionally copy the following, which are needed for a component build
    # (i.e. is_component_build = true, which is the default)
    optional_libs_to_copy = ['libchrome_zlib.so', 'libabsl.so', 'libc++.so']

# Find the most recent ANGLE DLLs
binary_name = libs_to_copy[0]
newest_folder = None
newest_mtime = None
for path in source_paths:
    binary_path = os.path.join(path, binary_name)
    if os.path.exists(binary_path):
        binary_mtime = os.path.getmtime(binary_path)
        if (newest_folder is None) or (binary_mtime > newest_mtime):
            newest_folder = path
            newest_mtime = binary_mtime

if newest_folder is None:
    sys.exit("Could not find ANGLE binaries!")

source_folder = newest_folder

if is_windows:
    # Is a folder a chrome binary directory?
    def is_chrome_bin(str):
        chrome_file = os.path.join(chrome_folder, str)
        return os.path.isdir(chrome_file) and all([char.isdigit() or char == '.' for char in str])

    sorted_chrome_bins = sorted(
        [folder for folder in os.listdir(chrome_folder) if is_chrome_bin(folder)], reverse=True)

    dest_folder = os.path.join(chrome_folder, sorted_chrome_bins[0])
else:
    dest_folder = chrome_folder

print('Copying binaries from ' + source_folder + ' to ' + dest_folder + '.')


def copy_file(src, dst):
    print(' - ' + src + '   -->   ' + dst)
    shutil.copyfile(src, dst)


def do_copy(filename, is_optional):
    src = os.path.join(source_folder, filename)
    if os.path.exists(src):
        # No backup is made.  Any backup becomes stale on the next update and could be a cause for
        # confusion.  Reintall Chromium if it needs to be recovered.
        dst = os.path.join(dest_folder, filename)
        copy_file(src, dst)

        if is_windows:
            copy_file(src + '.pdb', dst + '.pdb')

    elif not is_optional:
        print(' - COULD NOT FIND "' + src + '"')


for filename in libs_to_copy:
    do_copy(filename, False)
for filename in optional_libs_to_copy:
    do_copy(filename, True)