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build_cpp_projects.py
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# Copyright (c) 2017 CEF Python, see the Authors file.
# All rights reserved. Licensed under BSD 3-clause license.
# Project website: https://github.com/cztomczak/cefpython
"""Called by build.py internally. Builds C++ projects using
distutils/setuptools compilers. This tool is executed by build.py
on Windows only currently. Output directories are in
build/build_cefpython/.
Usage:
build_cpp_projects.py [--force]
TODO: Linux/Mac support, see makefiles, add include dirs using
compiler.add_include_dir, compiler/linker flags,
refactor macros.
"""
# import setuptools so that distutils msvc compiler is patched
# noinspection PyUnresolvedReferences
import setuptools
from distutils.ccompiler import new_compiler
from common import *
import shutil
# Macros
MACROS = [
"WIN32", "_WIN32", "_WINDOWS",
("WINVER", "0x0601"), ("_WIN32_WINNT", "0x0601"), # Windows 7+
"NDEBUG", "_NDEBUG",
"_CRT_SECURE_NO_WARNINGS",
]
cefpython_app_MACROS = MACROS + [
"BROWSER_PROCESS",
]
subprocess_MACROS = MACROS + [
"RENDERER_PROCESS",
"UNICODE", "_UNICODE",
"NOMINMAX",
"WIN32_LEAN_AND_MEAN",
("_HAS_EXCEPTIONS", "0"),
]
# Compiler args
COMPILER_ARGS = [
"/EHsc",
]
subprocess_COMPILER_ARGS = [
"/MT",
]
# Linker args
subprocess_LINKER_ARGS = [
"/MANIFEST:NO",
"/LARGEADDRESSAWARE",
]
# Command line args
FORCE_FLAG = False
def main():
command_line_args()
clean_build_directories_if_forced()
build_cefpython_app_library()
build_library(lib_name="client_handler",
macros=MACROS,
sources_dir=CLIENT_HANDLER_DIR,
output_dir=BUILD_CLIENT_HANDLER)
build_library(lib_name="cpp_utils",
macros=MACROS,
sources_dir=CPP_UTILS_DIR,
output_dir=BUILD_CPP_UTILS)
build_subprocess_executable()
print("[build_cpp_projects.py] Done building C++ projects")
def command_line_args():
global FORCE_FLAG
if "--force" in sys.argv:
FORCE_FLAG = True
def clean_build_directories_if_forced():
build_dirs = [BUILD_CEFPYTHON_APP, BUILD_CLIENT_HANDLER, BUILD_CPP_UTILS,
BUILD_SUBPROCESS]
if FORCE_FLAG:
print("[build_cpp_projects.py] Clean C++ projects build directories")
for bdir in build_dirs:
if os.path.isdir(bdir):
shutil.rmtree(bdir)
def get_compiler(static=False):
# NOTES:
# - VS2008 and VS2010 are both using distutils/msvc9compiler.py
compiler = new_compiler()
# Must initialize so that "compile_options" and others are available
compiler.initialize()
if static:
compiler.compile_options.remove("/MD")
# Overwrite function that adds /MANIFESTFILE, as for subprocess
# manifest is disabled. Otherwise warning LNK4075 is generated.
if hasattr(compiler, "manifest_setup_ldargs"):
compiler.manifest_setup_ldargs = lambda *_: None
return compiler
def build_library(lib_name, macros, output_dir,
sources=None, sources_dir=None):
assert bool(sources_dir) ^ bool(sources) # xor
print("[build_cpp_projects.py] Build library: {lib_name}"
.format(lib_name=lib_name))
compiler = get_compiler()
if not os.path.exists(output_dir):
os.makedirs(output_dir)
if sources_dir:
assert not sources
sources = get_sources(sources_dir)
(changed, objects) = smart_compile(compiler,
macros=macros,
extra_args=COMPILER_ARGS,
sources=sources,
output_dir=output_dir)
lib_path = os.path.join(output_dir, lib_name + LIB_EXT)
if changed or not os.path.exists(lib_path):
compiler.create_static_lib(objects, lib_name,
output_dir=output_dir)
print("[build_cpp_projects.py] Created library: {lib_name}"
.format(lib_name=lib_name))
else:
print("[build_cpp_projects.py] Library is up-to-date: {lib_name}"
.format(lib_name=lib_name))
def build_cefpython_app_library():
sources = get_sources(SUBPROCESS_DIR, exclude_names=["main.cpp"])
main_message_loop_dir = os.path.join(SUBPROCESS_DIR, "main_message_loop")
sources.extend(get_sources(main_message_loop_dir))
build_library(lib_name="cefpython_app",
macros=cefpython_app_MACROS,
sources=sources,
output_dir=BUILD_CEFPYTHON_APP)
def build_subprocess_executable():
print("[buil_cpp_projects.py] Build executable: subprocess")
compiler = get_compiler(static=True)
sources = get_sources(SUBPROCESS_DIR,
exclude_names=["print_handler_gtk.cpp"])
(changed, objects) = smart_compile(compiler,
macros=subprocess_MACROS,
extra_args=subprocess_COMPILER_ARGS,
sources=sources,
output_dir=BUILD_SUBPROCESS)
executable_path = os.path.join(BUILD_SUBPROCESS,
"subprocess" + EXECUTABLE_EXT)
if changed or not os.path.exists(executable_path):
lib_dir = os.path.join(CEF_BINARIES_LIBRARIES, "lib")
lib_dir_vs = os.path.join(lib_dir,
get_msvs_for_python(vs_prefix=True))
compiler.link_executable(objects,
output_progname="subprocess",
output_dir=BUILD_SUBPROCESS,
libraries=["libcef",
"libcef_dll_wrapper_MT"],
library_dirs=[lib_dir, lib_dir_vs],
# TODO linker flags for Linux/Mac
extra_preargs=None,
extra_postargs=subprocess_LINKER_ARGS)
else:
print("[build_cpp_projects.py] Executable is up-to-date: subprocess")
def get_sources(sources_dir, exclude_names=None):
if not exclude_names:
exclude_names = list()
sources = glob.glob(os.path.join(sources_dir, "*.cpp"))
if MAC:
sources.extend(glob.glob(os.path.join(sources_dir, "*.mm")))
ret = list()
for source_file in sources:
filename = os.path.basename(source_file)
if "_win.cpp" in filename and not WINDOWS:
continue
if "_linux.cpp" in filename and not LINUX:
continue
if "x11" in filename and not LINUX:
continue
if "gtk" in filename and not LINUX:
continue
if "_mac.cpp" in filename and not MAC:
continue
exclude = False
for name in exclude_names:
if name in filename:
exclude = True
break
if not exclude:
ret.append(source_file)
return ret
def smart_compile(compiler, macros, extra_args, sources, output_dir):
"""Smart compile will only recompile files that need recompiling."""
if not os.path.exists(output_dir):
os.makedirs(output_dir)
any_changed = False
objects = list()
for source_file in sources:
header_file = source_file.replace(".cpp", ".h")
header_file = header_file.replace(".mm", ".h")
assert header_file.endswith(".h")
if not os.path.isfile(header_file):
header_file = None
obj_file = os.path.join(output_dir, os.path.basename(source_file))
obj_file = obj_file.replace(".cpp", OBJ_EXT)
obj_file = obj_file.replace(".mm", OBJ_EXT)
assert obj_file.endswith(OBJ_EXT)
if os.path.exists(obj_file):
# Recompile source file if its time is newer than obj file,
# Also check its header file time. Also check times of any
# possible includes: cefpython_fixed.h, src/common/ files.
obj_time = os.path.getmtime(obj_file)
source_time = os.path.getmtime(source_file)
header_time = os.path.getmtime(header_file) if header_file else 0
cefpython_h_fixed_time = os.path.getmtime(
CEFPYTHON_API_HFILE_FIXED)
common_files_time = get_directory_mtime(os.path.join(SRC_DIR,
"common"))
changed = ((source_time > obj_time)
or (header_time > obj_time)
or (cefpython_h_fixed_time > obj_time)
or (common_files_time > obj_time))
else:
changed = True
if changed:
any_changed = True
else:
objects.append(obj_file)
if any_changed:
# If any has changed must recompile all given sources (for a library
# or executable). This is because we don't know which sources include
# which header files so must recompile everything.
objects = list()
# Compile each source file separately so that when compiling
# source files from different directories, object files are
# all put in the same output_directory. Otherwise distutils
# will create lots of subdirs in output_directory.
macros = macros_as_tuples(macros)
common_dir = os.path.join(SRC_DIR, "common")
original_dir = os.getcwd()
for source_file in sources:
source_dir = os.path.dirname(source_file)
os.chdir(source_dir)
source_basename = os.path.basename(source_file)
oneobj = compiler.compile([source_basename],
output_dir=output_dir,
macros=macros,
# TODO include dirs for Linux/Mac
include_dirs=[SRC_DIR,
common_dir,
get_python_include_path()],
# TODO compiler flags for Linux/Mac
extra_preargs=None,
extra_postargs=extra_args)
assert len(oneobj) == 1
objects.append(os.path.join(source_dir, oneobj[0]))
os.chdir(original_dir)
assert len(objects)
return any_changed, objects
def macros_as_tuples(macros):
"""Return all macros as tuples. Required by distutils.ccompiler."""
ret_macros = list()
for macro in macros:
if isinstance(macro, str):
ret_macros.append((macro, ""))
else:
assert isinstance(macro, tuple)
ret_macros.append(macro)
return ret_macros
def get_directory_mtime(directory):
# For example check src/common/ directory for newest modification time
assert os.path.isdir(directory)
files = glob.glob(os.path.join(directory, "*"))
ret_mtime = 0
for header_file in files:
mtime = os.path.getmtime(header_file)
if mtime > ret_mtime:
ret_mtime = mtime
assert ret_mtime
return ret_mtime
if __name__ == "__main__":
main()