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godot/methods.py
Andrii Doroshenko (Xrayez) a96f0e98d7 Add custom_modules build option to compile external user modules 
This patch adds ability to include external, user-defined C++ modules
to be compiled as part of Godot via `custom_modules` build option
which can be passed to `scons`.

```
scons platform=x11 tools=yes custom_modules="../project/modules"
```

Features:

- detects all available modules under `custom_modules` directory the
same way as it does for built-in modules (not recursive);
- works with both relative and absolute paths on the filesystem;
- multiple search paths can be specified as a comma-separated list.

Module custom documentation and editor icons collection and generation
process is adapted to work with absolute paths needed by such modules.

Also fixed doctool bug mixing absolute and relative paths respectively.

Implementation details:

- `env.module_list` is a dictionary now, which holds both module name as
  key and either a relative or absolute path to a module as a value.
- `methods.detect_modules` is run twice: once for built-in modules, and
  second for external modules, all combined later.
- `methods.detect_modules` was not doing what it says on the tin. It is
  split into `detect_modules` which collects a list of available modules
  and `write_modules` which generates `register_types` sources for each.
- whether a module is built-in or external is distinguished by relative
  or absolute paths respectively. `custom_modules` scons converter
  ensures that the path is absolute even if relative path is supplied,
  including expanding user paths and symbolic links.
- treats the parent directory as if it was Godot's base directory, so
  that there's no need to change include paths in cases where custom
  modules are included as dependencies in other modules.
2020-05-25 15:33:32 +03:00

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import os
import re
import glob
import subprocess
def add_source_files(self, sources, files, warn_duplicates=True):
# Convert string to list of absolute paths (including expanding wildcard)
if isinstance(files, (str, bytes)):
# Keep SCons project-absolute path as they are (no wildcard support)
if files.startswith("#"):
if "*" in files:
print("ERROR: Wildcards can't be expanded in SCons project-absolute path: '{}'".format(files))
return
files = [files]
else:
dir_path = self.Dir(".").abspath
files = sorted(glob.glob(dir_path + "/" + files))
# Add each path as compiled Object following environment (self) configuration
for path in files:
obj = self.Object(path)
if obj in sources:
if warn_duplicates:
print('WARNING: Object "{}" already included in environment sources.'.format(obj))
else:
continue
sources.append(obj)
def disable_warnings(self):
# 'self' is the environment
if self.msvc:
# We have to remove existing warning level defines before appending /w,
# otherwise we get: "warning D9025 : overriding '/W3' with '/w'"
warn_flags = ["/Wall", "/W4", "/W3", "/W2", "/W1", "/WX"]
self.Append(CCFLAGS=["/w"])
self.Append(CFLAGS=["/w"])
self.Append(CXXFLAGS=["/w"])
self["CCFLAGS"] = [x for x in self["CCFLAGS"] if not x in warn_flags]
self["CFLAGS"] = [x for x in self["CFLAGS"] if not x in warn_flags]
self["CXXFLAGS"] = [x for x in self["CXXFLAGS"] if not x in warn_flags]
else:
self.Append(CCFLAGS=["-w"])
self.Append(CFLAGS=["-w"])
self.Append(CXXFLAGS=["-w"])
def add_module_version_string(self, s):
self.module_version_string += "." + s
def update_version(module_version_string=""):
build_name = "custom_build"
if os.getenv("BUILD_NAME") != None:
build_name = os.getenv("BUILD_NAME")
print("Using custom build name: " + build_name)
import version
# NOTE: It is safe to generate this file here, since this is still executed serially
f = open("core/version_generated.gen.h", "w")
f.write("/* THIS FILE IS GENERATED DO NOT EDIT */\n")
f.write("#ifndef VERSION_GENERATED_GEN_H\n")
f.write("#define VERSION_GENERATED_GEN_H\n")
f.write('#define VERSION_SHORT_NAME "' + str(version.short_name) + '"\n')
f.write('#define VERSION_NAME "' + str(version.name) + '"\n')
f.write("#define VERSION_MAJOR " + str(version.major) + "\n")
f.write("#define VERSION_MINOR " + str(version.minor) + "\n")
f.write("#define VERSION_PATCH " + str(version.patch) + "\n")
f.write('#define VERSION_STATUS "' + str(version.status) + '"\n')
f.write('#define VERSION_BUILD "' + str(build_name) + '"\n')
f.write('#define VERSION_MODULE_CONFIG "' + str(version.module_config) + module_version_string + '"\n')
f.write("#define VERSION_YEAR " + str(version.year) + "\n")
f.write('#define VERSION_WEBSITE "' + str(version.website) + '"\n')
f.write("#endif // VERSION_GENERATED_GEN_H\n")
f.close()
# NOTE: It is safe to generate this file here, since this is still executed serially
fhash = open("core/version_hash.gen.h", "w")
fhash.write("/* THIS FILE IS GENERATED DO NOT EDIT */\n")
fhash.write("#ifndef VERSION_HASH_GEN_H\n")
fhash.write("#define VERSION_HASH_GEN_H\n")
githash = ""
gitfolder = ".git"
if os.path.isfile(".git"):
module_folder = open(".git", "r").readline().strip()
if module_folder.startswith("gitdir: "):
gitfolder = module_folder[8:]
if os.path.isfile(os.path.join(gitfolder, "HEAD")):
head = open(os.path.join(gitfolder, "HEAD"), "r").readline().strip()
if head.startswith("ref: "):
head = os.path.join(gitfolder, head[5:])
if os.path.isfile(head):
githash = open(head, "r").readline().strip()
else:
githash = head
fhash.write('#define VERSION_HASH "' + githash + '"\n')
fhash.write("#endif // VERSION_HASH_GEN_H\n")
fhash.close()
def parse_cg_file(fname, uniforms, sizes, conditionals):
fs = open(fname, "r")
line = fs.readline()
while line:
if re.match(r"^\s*uniform", line):
res = re.match(r"uniform ([\d\w]*) ([\d\w]*)")
type = res.groups(1)
name = res.groups(2)
uniforms.append(name)
if type.find("texobj") != -1:
sizes.append(1)
else:
t = re.match(r"float(\d)x(\d)", type)
if t:
sizes.append(int(t.groups(1)) * int(t.groups(2)))
else:
t = re.match(r"float(\d)", type)
sizes.append(int(t.groups(1)))
if line.find("[branch]") != -1:
conditionals.append(name)
line = fs.readline()
fs.close()
def detect_modules(at_path):
module_list = {} # name : path
modules_glob = os.path.join(at_path, "*")
files = glob.glob(modules_glob)
files.sort() # so register_module_types does not change that often, and also plugins are registered in alphabetic order
for x in files:
if not is_module(x):
continue
name = os.path.basename(x)
path = x.replace("\\", "/") # win32
module_list[name] = path
return module_list
def is_module(path):
return os.path.isdir(path) and os.path.exists(path + "/config.py")
def write_modules(module_list):
includes_cpp = ""
preregister_cpp = ""
register_cpp = ""
unregister_cpp = ""
for name, path in module_list.items():
try:
with open(os.path.join(path, "register_types.h")):
includes_cpp += '#include "' + path + '/register_types.h"\n'
preregister_cpp += "#ifdef MODULE_" + name.upper() + "_ENABLED\n"
preregister_cpp += "#ifdef MODULE_" + name.upper() + "_HAS_PREREGISTER\n"
preregister_cpp += "\tpreregister_" + name + "_types();\n"
preregister_cpp += "#endif\n"
preregister_cpp += "#endif\n"
register_cpp += "#ifdef MODULE_" + name.upper() + "_ENABLED\n"
register_cpp += "\tregister_" + name + "_types();\n"
register_cpp += "#endif\n"
unregister_cpp += "#ifdef MODULE_" + name.upper() + "_ENABLED\n"
unregister_cpp += "\tunregister_" + name + "_types();\n"
unregister_cpp += "#endif\n"
except IOError:
pass
modules_cpp = """// register_module_types.gen.cpp
/* THIS FILE IS GENERATED DO NOT EDIT */
#include "register_module_types.h"
#include "modules/modules_enabled.gen.h"
%s
void preregister_module_types() {
%s
}
void register_module_types() {
%s
}
void unregister_module_types() {
%s
}
""" % (
includes_cpp,
preregister_cpp,
register_cpp,
unregister_cpp,
)
# NOTE: It is safe to generate this file here, since this is still executed serially
with open("modules/register_module_types.gen.cpp", "w") as f:
f.write(modules_cpp)
def convert_custom_modules_path(path):
if not path:
return path
err_msg = "Build option 'custom_modules' must %s"
if not os.path.isdir(path):
raise ValueError(err_msg % "point to an existing directory.")
if os.path.realpath(path) == os.path.realpath("modules"):
raise ValueError(err_msg % "be a directory other than built-in `modules` directory.")
if is_module(path):
raise ValueError(err_msg % "point to a directory with modules, not a single module.")
return os.path.realpath(os.path.expanduser(path))
def disable_module(self):
self.disabled_modules.append(self.current_module)
def use_windows_spawn_fix(self, platform=None):
if os.name != "nt":
return # not needed, only for windows
# On Windows, due to the limited command line length, when creating a static library
# from a very high number of objects SCons will invoke "ar" once per object file;
# that makes object files with same names to be overwritten so the last wins and
# the library looses symbols defined by overwritten objects.
# By enabling quick append instead of the default mode (replacing), libraries will
# got built correctly regardless the invocation strategy.
# Furthermore, since SCons will rebuild the library from scratch when an object file
# changes, no multiple versions of the same object file will be present.
self.Replace(ARFLAGS="q")
def mySubProcess(cmdline, env):
startupinfo = subprocess.STARTUPINFO()
startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
proc = subprocess.Popen(
cmdline,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
startupinfo=startupinfo,
shell=False,
env=env,
)
_, err = proc.communicate()
rv = proc.wait()
if rv:
print("=====")
print(err)
print("=====")
return rv
def mySpawn(sh, escape, cmd, args, env):
newargs = " ".join(args[1:])
cmdline = cmd + " " + newargs
rv = 0
env = {str(key): str(value) for key, value in iter(env.items())}
if len(cmdline) > 32000 and cmd.endswith("ar"):
cmdline = cmd + " " + args[1] + " " + args[2] + " "
for i in range(3, len(args)):
rv = mySubProcess(cmdline + args[i], env)
if rv:
break
else:
rv = mySubProcess(cmdline, env)
return rv
self["SPAWN"] = mySpawn
def save_active_platforms(apnames, ap):
for x in ap:
names = ["logo"]
if os.path.isfile(x + "/run_icon.png"):
names.append("run_icon")
for name in names:
pngf = open(x + "/" + name + ".png", "rb")
b = pngf.read(1)
str = " /* AUTOGENERATED FILE, DO NOT EDIT */ \n"
str += " static const unsigned char _" + x[9:] + "_" + name + "[]={"
while len(b) == 1:
str += hex(ord(b))
b = pngf.read(1)
if len(b) == 1:
str += ","
str += "};\n"
pngf.close()
# NOTE: It is safe to generate this file here, since this is still executed serially
wf = x + "/" + name + ".gen.h"
with open(wf, "w") as pngw:
pngw.write(str)
def no_verbose(sys, env):
colors = {}
# Colors are disabled in non-TTY environments such as pipes. This means
# that if output is redirected to a file, it will not contain color codes
if sys.stdout.isatty():
colors["cyan"] = "\033[96m"
colors["purple"] = "\033[95m"
colors["blue"] = "\033[94m"
colors["green"] = "\033[92m"
colors["yellow"] = "\033[93m"
colors["red"] = "\033[91m"
colors["end"] = "\033[0m"
else:
colors["cyan"] = ""
colors["purple"] = ""
colors["blue"] = ""
colors["green"] = ""
colors["yellow"] = ""
colors["red"] = ""
colors["end"] = ""
compile_source_message = "{}Compiling {}==> {}$SOURCE{}".format(
colors["blue"], colors["purple"], colors["yellow"], colors["end"]
)
java_compile_source_message = "{}Compiling {}==> {}$SOURCE{}".format(
colors["blue"], colors["purple"], colors["yellow"], colors["end"]
)
compile_shared_source_message = "{}Compiling shared {}==> {}$SOURCE{}".format(
colors["blue"], colors["purple"], colors["yellow"], colors["end"]
)
link_program_message = "{}Linking Program {}==> {}$TARGET{}".format(
colors["red"], colors["purple"], colors["yellow"], colors["end"]
)
link_library_message = "{}Linking Static Library {}==> {}$TARGET{}".format(
colors["red"], colors["purple"], colors["yellow"], colors["end"]
)
ranlib_library_message = "{}Ranlib Library {}==> {}$TARGET{}".format(
colors["red"], colors["purple"], colors["yellow"], colors["end"]
)
link_shared_library_message = "{}Linking Shared Library {}==> {}$TARGET{}".format(
colors["red"], colors["purple"], colors["yellow"], colors["end"]
)
java_library_message = "{}Creating Java Archive {}==> {}$TARGET{}".format(
colors["red"], colors["purple"], colors["yellow"], colors["end"]
)
env.Append(CXXCOMSTR=[compile_source_message])
env.Append(CCCOMSTR=[compile_source_message])
env.Append(SHCCCOMSTR=[compile_shared_source_message])
env.Append(SHCXXCOMSTR=[compile_shared_source_message])
env.Append(ARCOMSTR=[link_library_message])
env.Append(RANLIBCOMSTR=[ranlib_library_message])
env.Append(SHLINKCOMSTR=[link_shared_library_message])
env.Append(LINKCOMSTR=[link_program_message])
env.Append(JARCOMSTR=[java_library_message])
env.Append(JAVACCOMSTR=[java_compile_source_message])
def detect_visual_c_compiler_version(tools_env):
# tools_env is the variable scons uses to call tools that execute tasks, SCons's env['ENV'] that executes tasks...
# (see the SCons documentation for more information on what it does)...
# in order for this function to be well encapsulated i choose to force it to receive SCons's TOOLS env (env['ENV']
# and not scons setup environment (env)... so make sure you call the right environment on it or it will fail to detect
# the proper vc version that will be called
# There is no flag to give to visual c compilers to set the architecture, ie scons bits argument (32,64,ARM etc)
# There are many different cl.exe files that are run, and each one compiles & links to a different architecture
# As far as I know, the only way to figure out what compiler will be run when Scons calls cl.exe via Program()
# is to check the PATH variable and figure out which one will be called first. Code below does that and returns:
# the following string values:
# "" Compiler not detected
# "amd64" Native 64 bit compiler
# "amd64_x86" 64 bit Cross Compiler for 32 bit
# "x86" Native 32 bit compiler
# "x86_amd64" 32 bit Cross Compiler for 64 bit
# There are other architectures, but Godot does not support them currently, so this function does not detect arm/amd64_arm
# and similar architectures/compilers
# Set chosen compiler to "not detected"
vc_chosen_compiler_index = -1
vc_chosen_compiler_str = ""
# Start with Pre VS 2017 checks which uses VCINSTALLDIR:
if "VCINSTALLDIR" in tools_env:
# print("Checking VCINSTALLDIR")
# find() works with -1 so big ifs below are needed... the simplest solution, in fact
# First test if amd64 and amd64_x86 compilers are present in the path
vc_amd64_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN\\amd64;")
if vc_amd64_compiler_detection_index > -1:
vc_chosen_compiler_index = vc_amd64_compiler_detection_index
vc_chosen_compiler_str = "amd64"
vc_amd64_x86_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN\\amd64_x86;")
if vc_amd64_x86_compiler_detection_index > -1 and (
vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_amd64_x86_compiler_detection_index
):
vc_chosen_compiler_index = vc_amd64_x86_compiler_detection_index
vc_chosen_compiler_str = "amd64_x86"
# Now check the 32 bit compilers
vc_x86_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN;")
if vc_x86_compiler_detection_index > -1 and (
vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_x86_compiler_detection_index
):
vc_chosen_compiler_index = vc_x86_compiler_detection_index
vc_chosen_compiler_str = "x86"
vc_x86_amd64_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN\\x86_amd64;")
if vc_x86_amd64_compiler_detection_index > -1 and (
vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_x86_amd64_compiler_detection_index
):
vc_chosen_compiler_index = vc_x86_amd64_compiler_detection_index
vc_chosen_compiler_str = "x86_amd64"
# and for VS 2017 and newer we check VCTOOLSINSTALLDIR:
if "VCTOOLSINSTALLDIR" in tools_env:
# Newer versions have a different path available
vc_amd64_compiler_detection_index = (
tools_env["PATH"].upper().find(tools_env["VCTOOLSINSTALLDIR"].upper() + "BIN\\HOSTX64\\X64;")
)
if vc_amd64_compiler_detection_index > -1:
vc_chosen_compiler_index = vc_amd64_compiler_detection_index
vc_chosen_compiler_str = "amd64"
vc_amd64_x86_compiler_detection_index = (
tools_env["PATH"].upper().find(tools_env["VCTOOLSINSTALLDIR"].upper() + "BIN\\HOSTX64\\X86;")
)
if vc_amd64_x86_compiler_detection_index > -1 and (
vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_amd64_x86_compiler_detection_index
):
vc_chosen_compiler_index = vc_amd64_x86_compiler_detection_index
vc_chosen_compiler_str = "amd64_x86"
vc_x86_compiler_detection_index = (
tools_env["PATH"].upper().find(tools_env["VCTOOLSINSTALLDIR"].upper() + "BIN\\HOSTX86\\X86;")
)
if vc_x86_compiler_detection_index > -1 and (
vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_x86_compiler_detection_index
):
vc_chosen_compiler_index = vc_x86_compiler_detection_index
vc_chosen_compiler_str = "x86"
vc_x86_amd64_compiler_detection_index = (
tools_env["PATH"].upper().find(tools_env["VCTOOLSINSTALLDIR"].upper() + "BIN\\HOSTX86\\X64;")
)
if vc_x86_amd64_compiler_detection_index > -1 and (
vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_x86_amd64_compiler_detection_index
):
vc_chosen_compiler_index = vc_x86_amd64_compiler_detection_index
vc_chosen_compiler_str = "x86_amd64"
return vc_chosen_compiler_str
def find_visual_c_batch_file(env):
from SCons.Tool.MSCommon.vc import get_default_version, get_host_target, find_batch_file
version = get_default_version(env)
(host_platform, target_platform, _) = get_host_target(env)
return find_batch_file(env, version, host_platform, target_platform)[0]
def generate_cpp_hint_file(filename):
if os.path.isfile(filename):
# Don't overwrite an existing hint file since the user may have customized it.
pass
else:
try:
with open(filename, "w") as fd:
fd.write("#define GDCLASS(m_class, m_inherits)\n")
except IOError:
print("Could not write cpp.hint file.")
def generate_vs_project(env, num_jobs):
batch_file = find_visual_c_batch_file(env)
if batch_file:
def build_commandline(commands):
common_build_prefix = [
'cmd /V /C set "plat=$(PlatformTarget)"',
'(if "$(PlatformTarget)"=="x64" (set "plat=x86_amd64"))',
'set "tools=yes"',
'(if "$(Configuration)"=="release" (set "tools=no"))',
'call "' + batch_file + '" !plat!',
]
result = " ^& ".join(common_build_prefix + [commands])
return result
env.AddToVSProject(env.core_sources)
env.AddToVSProject(env.main_sources)
env.AddToVSProject(env.modules_sources)
env.AddToVSProject(env.scene_sources)
env.AddToVSProject(env.servers_sources)
env.AddToVSProject(env.editor_sources)
# windows allows us to have spaces in paths, so we need
# to double quote off the directory. However, the path ends
# in a backslash, so we need to remove this, lest it escape the
# last double quote off, confusing MSBuild
env["MSVSBUILDCOM"] = build_commandline(
"scons --directory=\"$(ProjectDir.TrimEnd('\\'))\" platform=windows progress=no target=$(Configuration) tools=!tools! -j"
+ str(num_jobs)
)
env["MSVSREBUILDCOM"] = build_commandline(
"scons --directory=\"$(ProjectDir.TrimEnd('\\'))\" platform=windows progress=no target=$(Configuration) tools=!tools! vsproj=yes -j"
+ str(num_jobs)
)
env["MSVSCLEANCOM"] = build_commandline(
"scons --directory=\"$(ProjectDir.TrimEnd('\\'))\" --clean platform=windows progress=no target=$(Configuration) tools=!tools! -j"
+ str(num_jobs)
)
# This version information (Win32, x64, Debug, Release, Release_Debug seems to be
# required for Visual Studio to understand that it needs to generate an NMAKE
# project. Do not modify without knowing what you are doing.
debug_variants = ["debug|Win32"] + ["debug|x64"]
release_variants = ["release|Win32"] + ["release|x64"]
release_debug_variants = ["release_debug|Win32"] + ["release_debug|x64"]
variants = debug_variants + release_variants + release_debug_variants
debug_targets = ["bin\\godot.windows.tools.32.exe"] + ["bin\\godot.windows.tools.64.exe"]
release_targets = ["bin\\godot.windows.opt.32.exe"] + ["bin\\godot.windows.opt.64.exe"]
release_debug_targets = ["bin\\godot.windows.opt.tools.32.exe"] + ["bin\\godot.windows.opt.tools.64.exe"]
targets = debug_targets + release_targets + release_debug_targets
if not env.get("MSVS"):
env["MSVS"]["PROJECTSUFFIX"] = ".vcxproj"
env["MSVS"]["SOLUTIONSUFFIX"] = ".sln"
env.MSVSProject(
target=["#godot" + env["MSVSPROJECTSUFFIX"]],
incs=env.vs_incs,
srcs=env.vs_srcs,
runfile=targets,
buildtarget=targets,
auto_build_solution=1,
variant=variants,
)
else:
print("Could not locate Visual Studio batch file to set up the build environment. Not generating VS project.")
def precious_program(env, program, sources, **args):
program = env.ProgramOriginal(program, sources, **args)
env.Precious(program)
return program
def add_shared_library(env, name, sources, **args):
library = env.SharedLibrary(name, sources, **args)
env.NoCache(library)
return library
def add_library(env, name, sources, **args):
library = env.Library(name, sources, **args)
env.NoCache(library)
return library
def add_program(env, name, sources, **args):
program = env.Program(name, sources, **args)
env.NoCache(program)
return program
def CommandNoCache(env, target, sources, command, **args):
result = env.Command(target, sources, command, **args)
env.NoCache(result)
return result
def detect_darwin_sdk_path(platform, env):
sdk_name = ""
if platform == "osx":
sdk_name = "macosx"
var_name = "MACOS_SDK_PATH"
elif platform == "iphone":
sdk_name = "iphoneos"
var_name = "IPHONESDK"
elif platform == "iphonesimulator":
sdk_name = "iphonesimulator"
var_name = "IPHONESDK"
else:
raise Exception("Invalid platform argument passed to detect_darwin_sdk_path")
if not env[var_name]:
try:
sdk_path = subprocess.check_output(["xcrun", "--sdk", sdk_name, "--show-sdk-path"]).strip().decode("utf-8")
if sdk_path:
env[var_name] = sdk_path
except (subprocess.CalledProcessError, OSError):
print("Failed to find SDK path while running xcrun --sdk {} --show-sdk-path.".format(sdk_name))
raise
def is_vanilla_clang(env):
if not using_clang(env):
return False
try:
version = subprocess.check_output([env.subst(env["CXX"]), "--version"]).strip().decode("utf-8")
except (subprocess.CalledProcessError, OSError):
print("Couldn't parse CXX environment variable to infer compiler version.")
return False
return not version.startswith("Apple")
def get_compiler_version(env):
"""
Returns an array of version numbers as ints: [major, minor, patch].
The return array should have at least two values (major, minor).
"""
if not env.msvc:
# Not using -dumpversion as some GCC distros only return major, and
# Clang used to return hardcoded 4.2.1: # https://reviews.llvm.org/D56803
try:
version = subprocess.check_output([env.subst(env["CXX"]), "--version"]).strip().decode("utf-8")
except (subprocess.CalledProcessError, OSError):
print("Couldn't parse CXX environment variable to infer compiler version.")
return None
else: # TODO: Implement for MSVC
return None
match = re.search("[0-9]+\.[0-9.]+", version)
if match is not None:
return list(map(int, match.group().split(".")))
else:
return None
def using_gcc(env):
return "gcc" in os.path.basename(env["CC"])
def using_clang(env):
return "clang" in os.path.basename(env["CC"])
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