You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
69 lines
2.4 KiB
69 lines
2.4 KiB
#!/usr/bin/env python
|
|
"""Calls `gn` with the right --dotfile= and --root= arguments for LLVM."""
|
|
|
|
# GN normally expects a file called '.gn' at the root of the repository.
|
|
# Since LLVM's GN build isn't supported, putting that file at the root
|
|
# is deemed inappropriate, which requires passing --dotfile= and -root= to GN.
|
|
# Since that gets old fast, this script automatically passes these arguments.
|
|
|
|
import os
|
|
import subprocess
|
|
import sys
|
|
|
|
|
|
THIS_DIR = os.path.dirname(__file__)
|
|
ROOT_DIR = os.path.join(THIS_DIR, '..', '..', '..')
|
|
|
|
|
|
def get_platform():
|
|
import platform
|
|
if sys.platform == 'darwin':
|
|
return 'mac-amd64' if platform.machine() != 'arm64' else 'mac-arm64'
|
|
if platform.machine() not in ('AMD64', 'x86_64'):
|
|
return None
|
|
if sys.platform.startswith('linux'):
|
|
return 'linux-amd64'
|
|
if sys.platform == 'win32':
|
|
return 'windows-amd64'
|
|
|
|
|
|
def print_no_gn(mention_get):
|
|
print('gn binary not found in PATH')
|
|
if mention_get:
|
|
print('run llvm/utils/gn/get.py to download a binary and try again, or')
|
|
print('follow https://gn.googlesource.com/gn/#getting-started')
|
|
return 1
|
|
|
|
|
|
def main():
|
|
# Find real gn executable.
|
|
gn = 'gn'
|
|
if subprocess.call('gn --version', stdout=open(os.devnull, 'w'),
|
|
stderr=subprocess.STDOUT,
|
|
shell=True) != 0:
|
|
# Not on path. See if get.py downloaded a prebuilt binary and run that
|
|
# if it's there, or suggest to run get.py if it isn't.
|
|
platform = get_platform()
|
|
if not platform:
|
|
return print_no_gn(mention_get=False)
|
|
gn = os.path.join(os.path.dirname(__file__), 'bin', platform, 'gn')
|
|
if not os.path.exists(gn + ('.exe' if sys.platform == 'win32' else '')):
|
|
return print_no_gn(mention_get=True)
|
|
|
|
# Compute --dotfile= and --root= args to add.
|
|
extra_args = []
|
|
gn_main_arg = next((x for x in sys.argv[1:] if not x.startswith('-')), None)
|
|
if gn_main_arg != 'help': # `gn help` gets confused by the switches.
|
|
cwd = os.getcwd()
|
|
dotfile = os.path.relpath(os.path.join(THIS_DIR, '.gn'), cwd)
|
|
root = os.path.relpath(ROOT_DIR, cwd)
|
|
extra_args = [ '--dotfile=' + dotfile, '--root=' + root ]
|
|
|
|
# Run GN command with --dotfile= and --root= added.
|
|
cmd = [gn] + extra_args + sys.argv[1:]
|
|
sys.exit(subprocess.call(cmd))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|