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Code Releases Wiki Activity

C#: Begin move to .NET Core

Browse Source 
We're targeting .NET 5 for now to make development easier while
.NET 6 is not yet released.

TEMPORARY REGRESSIONS
---------------------

Assembly unloading is not implemented yet. As such, many Godot
resources are leaked at exit. This will be re-implemented later
together with assembly hot-reloading.
This commit is contained in:
Ignacio Roldán Etcheverry
2021-09-12 20:23:05 +02:00
parent 513ee857a9
commit f9a67ee9da
96 changed files with 2475 additions and 5615 deletions
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658
modules/mono/build_scripts/mono_configure.py
View File

@@ -1,65 +1,5 @@
import os
import os.path
import subprocess
from SCons.Script import Dir, Environment
if os.name == "nt":
from . import mono_reg_utils as monoreg
android_arch_dirs = {
"armv7": "armeabi-v7a",
"arm64v8": "arm64-v8a",
"x86": "x86",
"x86_64": "x86_64",
}
def get_android_out_dir(env):
return os.path.join(
Dir("#platform/android/java/lib/libs").abspath,
"release" if env["target"] == "release" else "debug",
android_arch_dirs[env["android_arch"]],
)
def find_name_in_dir_files(directory, names, prefixes=[""], extensions=[""]):
for extension in extensions:
if extension and not extension.startswith("."):
extension = "." + extension
for prefix in prefixes:
for curname in names:
if os.path.isfile(os.path.join(directory, prefix + curname + extension)):
return curname
return ""
def find_file_in_dir(directory, names, prefixes=[""], extensions=[""]):
for extension in extensions:
if extension and not extension.startswith("."):
extension = "." + extension
for prefix in prefixes:
for curname in names:
filename = prefix + curname + extension
if os.path.isfile(os.path.join(directory, filename)):
return filename
return ""
def copy_file(src_dir, dst_dir, src_name, dst_name=""):
from shutil import copy
src_path = os.path.join(Dir(src_dir).abspath, src_name)
dst_dir = Dir(dst_dir).abspath
if not os.path.isdir(dst_dir):
os.makedirs(dst_dir)
if dst_name:
copy(src_path, os.path.join(dst_dir, dst_name))
else:
copy(src_path, dst_dir)
def is_desktop(platform):
@@ -71,504 +11,176 @@ def is_unix_like(platform):
def module_supports_tools_on(platform):
return platform not in ["android", "javascript", "ios"]
def find_wasm_src_dir(mono_root):
hint_dirs = [
os.path.join(mono_root, "src"),
os.path.join(mono_root, "../src"),
]
for hint_dir in hint_dirs:
if os.path.isfile(os.path.join(hint_dir, "driver.c")):
return hint_dir
return ""
return is_desktop(platform)
def configure(env, env_mono):
bits = env["bits"]
is_android = env["platform"] == "android"
is_javascript = env["platform"] == "javascript"
is_ios = env["platform"] == "ios"
is_ios_sim = is_ios and env["arch"] in ["x86", "x86_64"]
# is_android = env["platform"] == "android"
# is_javascript = env["platform"] == "javascript"
# is_ios = env["platform"] == "ios"
# is_ios_sim = is_ios and env["arch"] in ["x86", "x86_64"]
tools_enabled = env["tools"]
mono_static = env["mono_static"]
copy_mono_root = env["copy_mono_root"]
mono_prefix = env["mono_prefix"]
mono_bcl = env["mono_bcl"]
mono_lib_names = ["mono-2.0-sgen", "monosgen-2.0"]
if is_android and not env["android_arch"] in android_arch_dirs:
raise RuntimeError("This module does not support the specified 'android_arch': " + env["android_arch"])
if tools_enabled and not module_supports_tools_on(env["platform"]):
# TODO:
# Android: We have to add the data directory to the apk, concretely the Api and Tools folders.
raise RuntimeError("This module does not currently support building for this platform with tools enabled")
if is_android and mono_static:
# FIXME: When static linking and doing something that requires libmono-native, we get a dlopen error as 'libmono-native'
# seems to depend on 'libmonosgen-2.0'. Could be fixed by re-directing to '__Internal' with a dllmap or in the dlopen hook.
raise RuntimeError("Statically linking Mono is not currently supported for this platform")
if not mono_static and (is_javascript or is_ios):
raise RuntimeError("Dynamically linking Mono is not currently supported for this platform")
if not mono_prefix and (os.getenv("MONO32_PREFIX") or os.getenv("MONO64_PREFIX")):
print(
"WARNING: The environment variables 'MONO32_PREFIX' and 'MONO64_PREFIX' are deprecated; use the"
" 'mono_prefix' SCons parameter instead"
)
# Although we don't support building with tools for any platform where we currently use static AOT,
# if these are supported in the future, we won't be using static AOT for them as that would be
# too restrictive for the editor. These builds would probably be made to only use the interpreter.
mono_aot_static = (is_ios and not is_ios_sim) and not env["tools"]
# Static AOT is only supported on the root domain
mono_single_appdomain = mono_aot_static
if mono_single_appdomain:
env_mono.Append(CPPDEFINES=["GD_MONO_SINGLE_APPDOMAIN"])
if (env["tools"] or env["target"] != "release") and not mono_single_appdomain:
if env["tools"] or env["target"] != "release":
env_mono.Append(CPPDEFINES=["GD_MONO_HOT_RELOAD"])
app_host_dir = find_dotnet_app_host_dir(env)
def check_app_host_file_exists(file):
file_path = os.path.join(app_host_dir, file)
if not os.path.isfile(file_path):
raise RuntimeError("File not found: " + file_path)
# TODO:
# All libnethost does for us is provide a function to find hostfxr.
# If we could handle that logic ourselves we could void linking it.
# nethost file names:
# static: libnethost.a/lib
# shared: libnethost.a/dylib and nethost.dll
check_app_host_file_exists("libnethost.lib" if os.name == "nt" else "libnethost.a")
check_app_host_file_exists("nethost.h")
check_app_host_file_exists("hostfxr.h")
check_app_host_file_exists("coreclr_delegates.h")
env.Append(LIBPATH=[app_host_dir])
env_mono.Prepend(CPPPATH=app_host_dir)
libnethost_path = os.path.join(app_host_dir, "libnethost.lib" if os.name == "nt" else "libnethost.a")
if env["platform"] == "windows":
mono_root = mono_prefix
env_mono.Append(CPPDEFINES=["NETHOST_USE_AS_STATIC"])
if not mono_root and os.name == "nt":
mono_root = monoreg.find_mono_root_dir(bits)
if not mono_root:
raise RuntimeError(
"Mono installation directory not found; specify one manually with the 'mono_prefix' SCons parameter"
)
print("Found Mono root directory: " + mono_root)
mono_lib_path = os.path.join(mono_root, "lib")
env.Append(LIBPATH=mono_lib_path)
env_mono.Prepend(CPPPATH=os.path.join(mono_root, "include", "mono-2.0"))
lib_suffixes = [".lib"]
if not env.msvc:
# MingW supports both '.a' and '.lib'
lib_suffixes.insert(0, ".a")
if mono_static:
if env.msvc:
mono_static_lib_name = "libmono-static-sgen"
else:
mono_static_lib_name = "libmonosgen-2.0"
mono_static_lib_file = find_file_in_dir(mono_lib_path, [mono_static_lib_name], extensions=lib_suffixes)
if not mono_static_lib_file:
raise RuntimeError("Could not find static mono library in: " + mono_lib_path)
if env.msvc:
env.Append(LINKFLAGS=mono_static_lib_file)
env.Append(LINKFLAGS="Mincore.lib")
env.Append(LINKFLAGS="msvcrt.lib")
env.Append(LINKFLAGS="LIBCMT.lib")
env.Append(LINKFLAGS="Psapi.lib")
else:
mono_static_lib_file_path = os.path.join(mono_lib_path, mono_static_lib_file)
env.Append(LINKFLAGS=["-Wl,-whole-archive", mono_static_lib_file_path, "-Wl,-no-whole-archive"])
env.Append(LIBS=["psapi"])
env.Append(LIBS=["version"])
if env.msvc:
env.Append(LINKFLAGS="libnethost.lib")
else:
mono_lib_file = find_file_in_dir(mono_lib_path, mono_lib_names, extensions=lib_suffixes)
if not mono_lib_file:
raise RuntimeError("Could not find mono library in: " + mono_lib_path)
if env.msvc:
env.Append(LINKFLAGS=mono_lib_file)
else:
mono_lib_file_path = os.path.join(mono_lib_path, mono_lib_file)
env.Append(LINKFLAGS=mono_lib_file_path)
mono_bin_path = os.path.join(mono_root, "bin")
mono_dll_file = find_file_in_dir(mono_bin_path, mono_lib_names, prefixes=["", "lib"], extensions=[".dll"])
if not mono_dll_file:
raise RuntimeError("Could not find mono shared library in: " + mono_bin_path)
copy_file(mono_bin_path, "#bin", mono_dll_file)
env.Append(LINKFLAGS=["-Wl,-whole-archive", libnethost_path, "-Wl,-no-whole-archive"])
else:
is_apple = env["platform"] in ["macos", "ios"]
is_macos = is_apple and not is_ios
# is_macos = is_apple and not is_ios
sharedlib_ext = ".dylib" if is_apple else ".so"
# if is_ios and not is_ios_sim:
# env_mono.Append(CPPDEFINES=["IOS_DEVICE"])
mono_root = mono_prefix
mono_lib_path = ""
mono_so_file = ""
if not mono_root and (is_android or is_javascript or is_ios):
raise RuntimeError(
"Mono installation directory not found; specify one manually with the 'mono_prefix' SCons parameter"
)
if not mono_root and is_macos:
# Try with some known directories under macOS
hint_dirs = ["/Library/Frameworks/Mono.framework/Versions/Current", "/usr/local/var/homebrew/linked/mono"]
for hint_dir in hint_dirs:
if os.path.isdir(hint_dir):
mono_root = hint_dir
break
# We can't use pkg-config to link mono statically,
# but we can still use it to find the mono root directory
if not mono_root and mono_static:
mono_root = pkgconfig_try_find_mono_root(mono_lib_names, sharedlib_ext)
if not mono_root:
raise RuntimeError(
"Building with mono_static=yes, but failed to find the mono prefix with pkg-config; "
+ "specify one manually with the 'mono_prefix' SCons parameter"
)
if is_ios and not is_ios_sim:
env_mono.Append(CPPDEFINES=["IOS_DEVICE"])
if mono_root:
print("Found Mono root directory: " + mono_root)
mono_lib_path = os.path.join(mono_root, "lib")
env.Append(LIBPATH=[mono_lib_path])
env_mono.Prepend(CPPPATH=os.path.join(mono_root, "include", "mono-2.0"))
mono_lib = find_name_in_dir_files(mono_lib_path, mono_lib_names, prefixes=["lib"], extensions=[".a"])
if not mono_lib:
raise RuntimeError("Could not find mono library in: " + mono_lib_path)
env_mono.Append(CPPDEFINES=["_REENTRANT"])
if mono_static:
if not is_javascript:
env.Append(LINKFLAGS=["-rdynamic"])
mono_lib_file = os.path.join(mono_lib_path, "lib" + mono_lib + ".a")
if is_apple:
if is_macos:
env.Append(LINKFLAGS=["-Wl,-force_load," + mono_lib_file])
else:
arch = env["arch"]
def copy_mono_lib(libname_wo_ext):
copy_file(
mono_lib_path, "#bin", libname_wo_ext + ".a", "%s.ios.%s.a" % (libname_wo_ext, arch)
)
# Copy Mono libraries to the output folder. These are meant to be bundled with
# the export templates and added to the Xcode project when exporting a game.
copy_mono_lib("lib" + mono_lib)
copy_mono_lib("libmono-native")
copy_mono_lib("libmono-profiler-log")
if not is_ios_sim:
copy_mono_lib("libmono-ee-interp")
copy_mono_lib("libmono-icall-table")
copy_mono_lib("libmono-ilgen")
else:
assert is_desktop(env["platform"]) or is_android or is_javascript
env.Append(LINKFLAGS=["-Wl,-whole-archive", mono_lib_file, "-Wl,-no-whole-archive"])
if is_javascript:
env.Append(LIBS=["mono-icall-table", "mono-native", "mono-ilgen", "mono-ee-interp"])
wasm_src_dir = os.path.join(mono_root, "src")
if not os.path.isdir(wasm_src_dir):
raise RuntimeError("Could not find mono wasm src directory")
# Ideally this should be defined only for 'driver.c', but I can't fight scons for another 2 hours
env_mono.Append(CPPDEFINES=["CORE_BINDINGS"])
env_mono.add_source_files(
env.modules_sources,
[
os.path.join(wasm_src_dir, "driver.c"),
os.path.join(wasm_src_dir, "zlib-helper.c"),
os.path.join(wasm_src_dir, "corebindings.c"),
],
)
env.Append(
LINKFLAGS=[
"--js-library",
os.path.join(wasm_src_dir, "library_mono.js"),
"--js-library",
os.path.join(wasm_src_dir, "binding_support.js"),
"--js-library",
os.path.join(wasm_src_dir, "dotnet_support.js"),
]
)
else:
env.Append(LIBS=[mono_lib])
if is_macos:
env.Append(LIBS=["iconv", "pthread"])
elif is_android:
pass # Nothing
elif is_ios:
pass # Nothing, linking is delegated to the exported Xcode project
elif is_javascript:
env.Append(LIBS=["m", "rt", "dl", "pthread"])
else:
env.Append(LIBS=["m", "rt", "dl", "pthread"])
if not mono_static:
mono_so_file = find_file_in_dir(
mono_lib_path, mono_lib_names, prefixes=["lib"], extensions=[sharedlib_ext]
)
if not mono_so_file:
raise RuntimeError("Could not find mono shared library in: " + mono_lib_path)
if is_apple:
env.Append(LINKFLAGS=["-Wl,-force_load," + libnethost_path])
else:
assert not mono_static
# TODO: Add option to force using pkg-config
print("Mono root directory not found. Using pkg-config instead")
env.ParseConfig("pkg-config monosgen-2 --libs")
env_mono.ParseConfig("pkg-config monosgen-2 --cflags")
tmpenv = Environment()
tmpenv.AppendENVPath("PKG_CONFIG_PATH", os.getenv("PKG_CONFIG_PATH"))
tmpenv.ParseConfig("pkg-config monosgen-2 --libs-only-L")
for hint_dir in tmpenv["LIBPATH"]:
file_found = find_file_in_dir(hint_dir, mono_lib_names, prefixes=["lib"], extensions=[sharedlib_ext])
if file_found:
mono_lib_path = hint_dir
mono_so_file = file_found
break
if not mono_so_file:
raise RuntimeError("Could not find mono shared library in: " + str(tmpenv["LIBPATH"]))
if not mono_static:
libs_output_dir = get_android_out_dir(env) if is_android else "#bin"
copy_file(mono_lib_path, libs_output_dir, mono_so_file)
if not tools_enabled:
if is_desktop(env["platform"]):
if not mono_root:
mono_root = (
subprocess.check_output(["pkg-config", "mono-2", "--variable=prefix"]).decode("utf8").strip()
)
make_template_dir(env, mono_root)
elif is_android:
# Compress Android Mono Config
from . import make_android_mono_config
module_dir = os.getcwd()
config_file_path = os.path.join(module_dir, "build_scripts", "mono_android_config.xml")
make_android_mono_config.generate_compressed_config(config_file_path, "mono_gd/")
# Copy the required shared libraries
copy_mono_shared_libs(env, mono_root, None)
elif is_javascript:
pass # No data directory for this platform
elif is_ios:
pass # No data directory for this platform
if copy_mono_root:
if not mono_root:
mono_root = subprocess.check_output(["pkg-config", "mono-2", "--variable=prefix"]).decode("utf8").strip()
if tools_enabled:
# Only supported for editor builds.
copy_mono_root_files(env, mono_root, mono_bcl)
env.Append(LINKFLAGS=["-Wl,-whole-archive", libnethost_path, "-Wl,-no-whole-archive"])
def make_template_dir(env, mono_root):
from shutil import rmtree
def find_dotnet_app_host_dir(env):
dotnet_root = env["dotnet_root"]
platform = env["platform"]
target = env["target"]
if not dotnet_root:
dotnet_exe = find_executable("dotnet")
if dotnet_exe:
dotnet_exe_realpath = os.path.realpath(dotnet_exe) # Eliminate symbolic links
dotnet_root = os.path.abspath(os.path.join(dotnet_exe_realpath, os.pardir))
else:
raise RuntimeError("Cannot find .NET Core Sdk")
template_dir_name = ""
print("Found .NET Core Sdk root directory: " + dotnet_root)
assert is_desktop(platform)
dotnet_cmd = os.path.join(dotnet_root, "dotnet.exe" if os.name == "nt" else "dotnet")
template_dir_name = "data.mono.%s.%s.%s" % (platform, env["bits"], target)
runtime_identifier = determine_runtime_identifier(env)
output_dir = Dir("#bin").abspath
template_dir = os.path.join(output_dir, template_dir_name)
# TODO: In the future, if it can't be found this way, we want to obtain it
# from the runtime.{runtime_identifier}.Microsoft.NETCore.DotNetAppHost NuGet package.
app_host_search_version = "5.0"
app_host_version = find_app_host_version(dotnet_cmd, app_host_search_version)
if not app_host_version:
raise RuntimeError("Cannot find .NET app host for version: " + app_host_search_version)
template_mono_root_dir = os.path.join(template_dir, "Mono")
app_host_dir = os.path.join(
dotnet_root,
"packs",
"Microsoft.NETCore.App.Host." + runtime_identifier,
app_host_version,
"runtimes",
runtime_identifier,
"native",
)
if os.path.isdir(template_mono_root_dir):
rmtree(template_mono_root_dir) # Clean first
# Copy etc/mono/
template_mono_config_dir = os.path.join(template_mono_root_dir, "etc", "mono")
copy_mono_etc_dir(mono_root, template_mono_config_dir, platform)
# Copy the required shared libraries
copy_mono_shared_libs(env, mono_root, template_mono_root_dir)
return app_host_dir
def copy_mono_root_files(env, mono_root, mono_bcl):
from glob import glob
from shutil import copy
from shutil import rmtree
def determine_runtime_identifier(env):
names_map = {
"windows": "win",
"macos": "osx",
"linuxbsd": "linux",
"server": "linux", # FIXME: Is server linux only, or also macos?
}
if not mono_root:
raise RuntimeError("Mono installation directory not found")
output_dir = Dir("#bin").abspath
editor_mono_root_dir = os.path.join(output_dir, "GodotSharp", "Mono")
if os.path.isdir(editor_mono_root_dir):
rmtree(editor_mono_root_dir) # Clean first
# Copy etc/mono/
editor_mono_config_dir = os.path.join(editor_mono_root_dir, "etc", "mono")
copy_mono_etc_dir(mono_root, editor_mono_config_dir, env["platform"])
# Copy the required shared libraries
copy_mono_shared_libs(env, mono_root, editor_mono_root_dir)
# Copy framework assemblies
mono_framework_dir = mono_bcl or os.path.join(mono_root, "lib", "mono", "4.5")
mono_framework_facades_dir = os.path.join(mono_framework_dir, "Facades")
editor_mono_framework_dir = os.path.join(editor_mono_root_dir, "lib", "mono", "4.5")
editor_mono_framework_facades_dir = os.path.join(editor_mono_framework_dir, "Facades")
if not os.path.isdir(editor_mono_framework_dir):
os.makedirs(editor_mono_framework_dir)
if not os.path.isdir(editor_mono_framework_facades_dir):
os.makedirs(editor_mono_framework_facades_dir)
for assembly in glob(os.path.join(mono_framework_dir, "*.dll")):
copy(assembly, editor_mono_framework_dir)
for assembly in glob(os.path.join(mono_framework_facades_dir, "*.dll")):
copy(assembly, editor_mono_framework_facades_dir)
def copy_mono_etc_dir(mono_root, target_mono_config_dir, platform):
from distutils.dir_util import copy_tree
from glob import glob
from shutil import copy
if not os.path.isdir(target_mono_config_dir):
os.makedirs(target_mono_config_dir)
mono_etc_dir = os.path.join(mono_root, "etc", "mono")
if not os.path.isdir(mono_etc_dir):
mono_etc_dir = ""
etc_hint_dirs = []
if platform != "windows":
etc_hint_dirs += ["/etc/mono", "/usr/local/etc/mono"]
if "MONO_CFG_DIR" in os.environ:
etc_hint_dirs += [os.path.join(os.environ["MONO_CFG_DIR"], "mono")]
for etc_hint_dir in etc_hint_dirs:
if os.path.isdir(etc_hint_dir):
mono_etc_dir = etc_hint_dir
break
if not mono_etc_dir:
raise RuntimeError("Mono installation etc directory not found")
copy_tree(os.path.join(mono_etc_dir, "2.0"), os.path.join(target_mono_config_dir, "2.0"))
copy_tree(os.path.join(mono_etc_dir, "4.0"), os.path.join(target_mono_config_dir, "4.0"))
copy_tree(os.path.join(mono_etc_dir, "4.5"), os.path.join(target_mono_config_dir, "4.5"))
if os.path.isdir(os.path.join(mono_etc_dir, "mconfig")):
copy_tree(os.path.join(mono_etc_dir, "mconfig"), os.path.join(target_mono_config_dir, "mconfig"))
for file in glob(os.path.join(mono_etc_dir, "*")):
if os.path.isfile(file):
copy(file, target_mono_config_dir)
def copy_mono_shared_libs(env, mono_root, target_mono_root_dir):
from shutil import copy
def copy_if_exists(src, dst):
if os.path.isfile(src):
copy(src, dst)
# .NET RID architectures: x86, x64, arm, or arm64
platform = env["platform"]
if platform == "windows":
src_mono_bin_dir = os.path.join(mono_root, "bin")
target_mono_bin_dir = os.path.join(target_mono_root_dir, "bin")
if not os.path.isdir(target_mono_bin_dir):
os.makedirs(target_mono_bin_dir)
mono_posix_helper_file = find_file_in_dir(
src_mono_bin_dir, ["MonoPosixHelper"], prefixes=["", "lib"], extensions=[".dll"]
)
copy(
os.path.join(src_mono_bin_dir, mono_posix_helper_file),
os.path.join(target_mono_bin_dir, "MonoPosixHelper.dll"),
)
# For newer versions
btls_dll_path = os.path.join(src_mono_bin_dir, "libmono-btls-shared.dll")
if os.path.isfile(btls_dll_path):
copy(btls_dll_path, target_mono_bin_dir)
if is_desktop(platform):
if env["arch"] in ["arm", "arm32"]:
rid = "arm"
elif env["arch"] == "arm64":
rid = "arm64"
else:
bits = env["bits"]
bit_arch_map = {"64": "x64", "32": "x86"}
rid = bit_arch_map[bits]
return "%s-%s" % (names_map[platform], rid)
else:
target_mono_lib_dir = (
get_android_out_dir(env) if platform == "android" else os.path.join(target_mono_root_dir, "lib")
)
if not os.path.isdir(target_mono_lib_dir):
os.makedirs(target_mono_lib_dir)
lib_file_names = []
if platform == "macos":
lib_file_names = [
lib_name + ".dylib"
for lib_name in ["libmono-btls-shared", "libmono-native-compat", "libMonoPosixHelper"]
]
elif is_unix_like(platform):
lib_file_names = [
lib_name + ".so"
for lib_name in [
"libmono-btls-shared",
"libmono-ee-interp",
"libmono-native",
"libMonoPosixHelper",
"libmono-profiler-aot",
"libmono-profiler-coverage",
"libmono-profiler-log",
"libMonoSupportW",
]
]
for lib_file_name in lib_file_names:
copy_if_exists(os.path.join(mono_root, "lib", lib_file_name), target_mono_lib_dir)
raise NotImplementedError()
def pkgconfig_try_find_mono_root(mono_lib_names, sharedlib_ext):
tmpenv = Environment()
tmpenv.AppendENVPath("PKG_CONFIG_PATH", os.getenv("PKG_CONFIG_PATH"))
tmpenv.ParseConfig("pkg-config monosgen-2 --libs-only-L")
for hint_dir in tmpenv["LIBPATH"]:
name_found = find_name_in_dir_files(hint_dir, mono_lib_names, prefixes=["lib"], extensions=[sharedlib_ext])
if name_found and os.path.isdir(os.path.join(hint_dir, "..", "include", "mono-2.0")):
return os.path.join(hint_dir, "..")
def find_app_host_version(dotnet_cmd, search_version):
import subprocess
try:
lines = subprocess.check_output([dotnet_cmd, "--list-runtimes"]).splitlines()
for line_bytes in lines:
line = line_bytes.decode("utf-8")
if not line.startswith("Microsoft.NETCore.App "):
continue
parts = line.split(" ")
if len(parts) < 2:
continue
version = parts[1]
# Look for 6.0.0 or 6.0.0-*
if version.startswith(search_version + "."):
return version
except (subprocess.CalledProcessError, OSError):
pass
return ""
ENV_PATH_SEP = ";" if os.name == "nt" else ":"
def find_executable(name):
is_windows = os.name == "nt"
windows_exts = os.environ["PATHEXT"].split(ENV_PATH_SEP) if is_windows else None
path_dirs = os.environ["PATH"].split(ENV_PATH_SEP)
search_dirs = path_dirs + [os.getcwd()] # cwd is last in the list
for dir in search_dirs:
path = os.path.join(dir, name)
if is_windows:
for extension in windows_exts:
path_with_ext = path + extension
if os.path.isfile(path_with_ext) and os.access(path_with_ext, os.X_OK):
return path_with_ext
else:
if os.path.isfile(path) and os.access(path, os.X_OK):
return path
return ""