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C#: Replace libnethost dependency to find hostfxr
We want to replace libnethost as it gives us issues with some compilers. Our implementation tries to mimic libnethost's hostfxr_resolver search logic. We try to use the same function names for easier comparing in case we need to update this in the future.
This commit is contained in:
Ignacio Roldán Etcheverry
@@ -27,293 +27,3 @@ def configure(env, env_mono):
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if env["tools"]:
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env_mono.Append(CPPDEFINES=["GD_MONO_HOT_RELOAD"])
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app_host_dir = find_dotnet_app_host_dir(env)
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def check_app_host_file_exists(file):
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file_path = os.path.join(app_host_dir, file)
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if not os.path.isfile(file_path):
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raise RuntimeError("File not found: " + file_path)
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# TODO:
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# All libnethost does for us is provide a function to find hostfxr.
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# If we could handle that logic ourselves we could void linking it.
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# nethost file names:
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# static: libnethost.a/lib
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# shared: libnethost.a/dylib and nethost.dll
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check_app_host_file_exists("libnethost.lib" if os.name == "nt" else "libnethost.a")
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check_app_host_file_exists("nethost.h")
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check_app_host_file_exists("hostfxr.h")
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check_app_host_file_exists("coreclr_delegates.h")
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env_mono.Prepend(CPPPATH=app_host_dir)
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env.Append(LIBPATH=[app_host_dir])
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# Only the editor build links nethost, which is needed to find hostfxr.
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# Exported games don't need this logic as hostfxr is bundled with them.
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if tools_enabled:
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libnethost_path = os.path.join(app_host_dir, "libnethost.lib" if os.name == "nt" else "libnethost.a")
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if env["platform"] == "windows":
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env_mono.Append(CPPDEFINES=["NETHOST_USE_AS_STATIC"])
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if env.msvc:
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env.Append(LINKFLAGS="libnethost.lib")
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else:
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env.Append(LINKFLAGS=["-Wl,-whole-archive", libnethost_path, "-Wl,-no-whole-archive"])
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else:
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is_apple = env["platform"] in ["macos", "ios"]
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# is_macos = is_apple and not is_ios
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# if is_ios and not is_ios_sim:
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# env_mono.Append(CPPDEFINES=["IOS_DEVICE"])
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if is_apple:
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env.Append(LINKFLAGS=["-Wl,-force_load," + libnethost_path])
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else:
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env.Append(LINKFLAGS=["-Wl,-whole-archive", libnethost_path, "-Wl,-no-whole-archive"])
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def find_dotnet_app_host_dir(env):
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dotnet_version = "6.0"
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dotnet_root = env["dotnet_root"]
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if not dotnet_root:
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dotnet_cmd = find_dotnet_executable(env["arch"])
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if dotnet_cmd:
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sdk_path = find_dotnet_sdk(dotnet_cmd, dotnet_version)
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if sdk_path:
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dotnet_root = os.path.abspath(os.path.join(sdk_path, os.pardir))
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if not dotnet_root:
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raise RuntimeError("Cannot find .NET Core Sdk")
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print("Found .NET Core Sdk root directory: " + dotnet_root)
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dotnet_cmd = os.path.join(dotnet_root, "dotnet.exe" if os.name == "nt" else "dotnet")
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runtime_identifier = determine_runtime_identifier(env)
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# TODO: In the future, if it can't be found this way, we want to obtain it
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# from the runtime.{runtime_identifier}.Microsoft.NETCore.DotNetAppHost NuGet package.
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app_host_version = find_app_host_version(dotnet_cmd, dotnet_version)
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if not app_host_version:
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raise RuntimeError("Cannot find .NET app host for version: " + dotnet_version)
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def get_runtime_path():
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return os.path.join(
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dotnet_root,
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"packs",
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"Microsoft.NETCore.App.Host." + runtime_identifier,
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app_host_version,
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"runtimes",
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runtime_identifier,
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"native",
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)
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app_host_dir = get_runtime_path()
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# Some Linux distros use their distro name as the RID in these paths.
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# If the initial generic path doesn't exist, try to get the RID from `dotnet --info`.
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# The generic RID should still be the first choice. Some platforms like Windows 10
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# define the RID as `win10-x64` but still use the generic `win-x64` for directory names.
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if not app_host_dir or not os.path.isdir(app_host_dir):
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runtime_identifier = find_dotnet_cli_rid(dotnet_cmd)
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app_host_dir = get_runtime_path()
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return app_host_dir
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def determine_runtime_identifier(env):
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# The keys are Godot's names, the values are the Microsoft's names.
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# List: https://docs.microsoft.com/en-us/dotnet/core/rid-catalog
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names_map = {
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"windows": "win",
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"macos": "osx",
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"linuxbsd": "linux",
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}
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arch_map = {
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"x86_64": "x64",
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"x86_32": "x86",
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"arm64": "arm64",
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"arm32": "arm",
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}
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platform = env["platform"]
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if is_desktop(platform):
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return "%s-%s" % (names_map[platform], arch_map[env["arch"]])
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else:
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raise NotImplementedError()
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def find_app_host_version(dotnet_cmd, search_version_str):
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import subprocess
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from distutils.version import LooseVersion
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search_version = LooseVersion(search_version_str)
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found_match = False
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try:
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env = dict(os.environ, DOTNET_CLI_UI_LANGUAGE="en-US")
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lines = subprocess.check_output([dotnet_cmd, "--list-runtimes"], env=env).splitlines()
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for line_bytes in lines:
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line = line_bytes.decode("utf-8")
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if not line.startswith("Microsoft.NETCore.App "):
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continue
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parts = line.split(" ", 2)
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if len(parts) < 3:
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continue
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version_str = parts[1]
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version = LooseVersion(version_str)
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if version >= search_version:
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search_version = version
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found_match = True
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if found_match:
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return str(search_version)
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except (subprocess.CalledProcessError, OSError) as e:
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import sys
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print(e, file=sys.stderr)
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return ""
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def find_dotnet_arch(dotnet_cmd):
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import subprocess
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try:
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env = dict(os.environ, DOTNET_CLI_UI_LANGUAGE="en-US")
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lines = subprocess.check_output([dotnet_cmd, "--info"], env=env).splitlines()
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for line_bytes in lines:
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line = line_bytes.decode("utf-8")
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parts = line.split(":", 1)
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if len(parts) < 2:
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continue
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arch_str = parts[0].strip()
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if arch_str != "Architecture":
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continue
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arch_value = parts[1].strip()
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arch_map = {"x64": "x86_64", "x86": "x86_32", "arm64": "arm64", "arm32": "arm32"}
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return arch_map[arch_value]
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except (subprocess.CalledProcessError, OSError) as e:
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import sys
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print(e, file=sys.stderr)
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return ""
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def find_dotnet_sdk(dotnet_cmd, search_version_str):
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import subprocess
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from distutils.version import LooseVersion
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search_version = LooseVersion(search_version_str)
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try:
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env = dict(os.environ, DOTNET_CLI_UI_LANGUAGE="en-US")
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lines = subprocess.check_output([dotnet_cmd, "--list-sdks"], env=env).splitlines()
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for line_bytes in lines:
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line = line_bytes.decode("utf-8")
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parts = line.split(" ", 1)
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if len(parts) < 2:
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continue
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version_str = parts[0]
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version = LooseVersion(version_str)
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if version < search_version:
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continue
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path_part = parts[1]
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return path_part[1 : path_part.find("]")]
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except (subprocess.CalledProcessError, OSError) as e:
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import sys
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print(e, file=sys.stderr)
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return ""
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def find_dotnet_cli_rid(dotnet_cmd):
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import subprocess
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try:
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env = dict(os.environ, DOTNET_CLI_UI_LANGUAGE="en-US")
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lines = subprocess.check_output([dotnet_cmd, "--info"], env=env).splitlines()
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for line_bytes in lines:
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line = line_bytes.decode("utf-8")
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if not line.startswith(" RID:"):
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continue
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parts = line.split()
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if len(parts) < 2:
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continue
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return parts[1]
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except (subprocess.CalledProcessError, OSError) as e:
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import sys
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print(e, file=sys.stderr)
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return ""
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ENV_PATH_SEP = ";" if os.name == "nt" else ":"
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def find_dotnet_executable(arch):
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is_windows = os.name == "nt"
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windows_exts = os.environ["PATHEXT"].split(ENV_PATH_SEP) if is_windows else None
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path_dirs = os.environ["PATH"].split(ENV_PATH_SEP)
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search_dirs = path_dirs + [os.getcwd()] # cwd is last in the list
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for dir in path_dirs:
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search_dirs += [
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os.path.join(dir, "x64"),
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os.path.join(dir, "x86"),
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os.path.join(dir, "arm64"),
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os.path.join(dir, "arm32"),
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] # search subfolders for cross compiling
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# `dotnet --info` may not specify architecture. In such cases,
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# we fallback to the first one we find without architecture.
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sdk_path_unknown_arch = ""
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for dir in search_dirs:
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path = os.path.join(dir, "dotnet")
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if is_windows:
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for extension in windows_exts:
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path_with_ext = path + extension
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if os.path.isfile(path_with_ext) and os.access(path_with_ext, os.X_OK):
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sdk_arch = find_dotnet_arch(path_with_ext)
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if sdk_arch == arch or arch == "":
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return path_with_ext
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elif sdk_arch == "":
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sdk_path_unknown_arch = path_with_ext
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else:
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if os.path.isfile(path) and os.access(path, os.X_OK):
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sdk_arch = find_dotnet_arch(path)
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if sdk_arch == arch or arch == "":
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return path
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elif sdk_arch == "":
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sdk_path_unknown_arch = path
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return sdk_path_unknown_arch
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