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llvm-mirror/utils/sysroot.py
Nico Weber a1fbabfd4c build: Add LLVM_WINSYSROOT to make setting /winsysroot easy on Win
Also add a script for sysroot management. For now, it can only create
fake sysroots that just symlink to local folders. This is useful for
testing.

Differential Revision: https://reviews.llvm.org/D96868
2021-02-17 10:27:25 -05:00

67 lines
2.1 KiB
Python
Executable File

#!/usr/bin/env python3
"""Helps manage sysroots."""
import argparse
import os
import subprocess
import sys
def make_fake_sysroot(out_dir):
def cmdout(cmd):
return subprocess.check_output(cmd).decode(sys.stdout.encoding).strip()
if sys.platform == 'win32':
p = os.getenv('ProgramFiles(x86)', 'C:\\Program Files (x86)')
winsdk = os.getenv('WindowsSdkDir')
if not winsdk:
winsdk = os.path.join(p, 'Windows Kits', '10')
print('%WindowsSdkDir% not set. You might want to run this from')
print('a Visual Studio cmd prompt. Defaulting to', winsdk)
vswhere = os.path.join(
p, 'Microsoft Visual Studio', 'Installer', 'vswhere')
vcid = 'Microsoft.VisualStudio.Component.VC.Tools.x86.x64'
vsinstalldir = cmdout(
[vswhere, '-latest', '-products', '*', '-requires', vcid,
'-property', 'installationPath'])
def mkjunction(dst, src):
subprocess.check_call(['mklink', '/j', dst, src], shell=True)
os.mkdir(out_dir)
mkjunction(os.path.join(out_dir, 'VC'),
os.path.join(vsinstalldir, 'VC'))
os.mkdir(os.path.join(out_dir, 'Windows Kits'))
mkjunction(os.path.join(out_dir, 'Windows Kits', '10'), winsdk)
else:
assert False, "FIXME: Implement on non-win"
print('Done.')
if sys.platform == 'win32':
# CMake doesn't like backslashes in commandline args.
abs_out_dir = os.path.abspath(out_dir).replace(os.path.sep, '/')
print('Pass -DLLVM_WINSYSROOT=' + abs_out_dir + ' to cmake.')
else:
print('Pass -DCMAKE_SYSROOT=' + abs_out_dir + ' to cmake.')
def main():
parser = argparse.ArgumentParser(description=__doc__)
subparsers = parser.add_subparsers(dest='command', required=True)
makefake = subparsers.add_parser('make-fake',
help='Create a sysroot that symlinks to local directories.')
makefake.add_argument('--out-dir', required=True)
args = parser.parse_args()
assert args.command == 'make-fake'
make_fake_sysroot(args.out_dir)
if __name__ == '__main__':
main()