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.
85 lines
3.2 KiB
85 lines
3.2 KiB
#!/usr/bin/env python
|
|
|
|
"""Gets the current revision and writes it to VCSRevision.h."""
|
|
|
|
from __future__ import print_function
|
|
|
|
import argparse
|
|
import os
|
|
import subprocess
|
|
import sys
|
|
|
|
|
|
THIS_DIR = os.path.abspath(os.path.dirname(__file__))
|
|
LLVM_DIR = os.path.dirname(os.path.dirname(os.path.dirname(THIS_DIR)))
|
|
|
|
|
|
def which(program):
|
|
# distutils.spawn.which() doesn't find .bat files,
|
|
# https://bugs.python.org/issue2200
|
|
for path in os.environ["PATH"].split(os.pathsep):
|
|
candidate = os.path.join(path, program)
|
|
if os.path.isfile(candidate) and os.access(candidate, os.X_OK):
|
|
return candidate
|
|
return None
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description=__doc__)
|
|
parser.add_argument('-d', '--depfile',
|
|
help='if set, writes a depfile that causes this script '
|
|
'to re-run each time the current revision changes')
|
|
parser.add_argument('--write-git-rev', action='store_true',
|
|
help='if set, writes git revision, else writes #undef')
|
|
parser.add_argument('--name', action='append',
|
|
help='if set, writes a depfile that causes this script '
|
|
'to re-run each time the current revision changes')
|
|
parser.add_argument('vcs_header', help='path to the output file to write')
|
|
args = parser.parse_args()
|
|
|
|
vcsrevision_contents = ''
|
|
if args.write_git_rev:
|
|
git, use_shell = which('git'), False
|
|
if not git: git = which('git.exe')
|
|
if not git: git, use_shell = which('git.bat'), True
|
|
git_dir = subprocess.check_output(
|
|
[git, 'rev-parse', '--git-dir'],
|
|
cwd=LLVM_DIR, shell=use_shell).decode().strip()
|
|
if not os.path.isdir(git_dir):
|
|
print('.git dir not found at "%s"' % git_dir, file=sys.stderr)
|
|
return 1
|
|
|
|
rev = subprocess.check_output(
|
|
[git, 'rev-parse', '--short', 'HEAD'],
|
|
cwd=git_dir, shell=use_shell).decode().strip()
|
|
url = subprocess.check_output(
|
|
[git, 'remote', 'get-url', 'origin'],
|
|
cwd=git_dir, shell=use_shell).decode().strip()
|
|
for name in args.name:
|
|
vcsrevision_contents += '#define %s_REVISION "%s"\n' % (name, rev)
|
|
vcsrevision_contents += '#define %s_REPOSITORY "%s"\n' % (name, url)
|
|
else:
|
|
for name in args.name:
|
|
vcsrevision_contents += '#undef %s_REVISION\n' % name
|
|
vcsrevision_contents += '#undef %s_REPOSITORY\n' % name
|
|
|
|
# If the output already exists and is identical to what we'd write,
|
|
# return to not perturb the existing file's timestamp.
|
|
if os.path.exists(args.vcs_header) and \
|
|
open(args.vcs_header).read() == vcsrevision_contents:
|
|
return 0
|
|
|
|
# http://neugierig.org/software/blog/2014/11/binary-revisions.html
|
|
if args.depfile:
|
|
build_dir = os.getcwd()
|
|
with open(args.depfile, 'w') as depfile:
|
|
depfile.write('%s: %s\n' % (
|
|
args.vcs_header,
|
|
os.path.relpath(os.path.join(git_dir, 'logs', 'HEAD'),
|
|
build_dir)))
|
|
open(args.vcs_header, 'w').write(vcsrevision_contents)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main())
|