| #!/usr/bin/env python3 |
| # |
| # Wrapper around 'ar' that defaults to deterministic archives |
| |
| import os |
| import shutil |
| import sys |
| |
| # calculate path to the real 'ar' |
| path = os.environ['PATH'] |
| path = path.replace(os.path.dirname(sys.argv[0]), '') |
| real_ar = shutil.which('ar', path=path) |
| |
| if len(sys.argv) == 1: |
| os.execl(real_ar, 'ar') |
| |
| # modify args to mimic 'ar' configured with --default-deterministic-archives |
| argv = sys.argv |
| if argv[1].startswith('--'): |
| # No modifier given |
| None |
| elif argv[1][0] == '@': |
| # Reading parameters from @file, we can try to inject D on the first line as well |
| # but modifying input files seems a bit too far for this intercept, bazel-native |
| # uses it but with rcsD by default |
| None |
| else: |
| # remove the optional '-' |
| if argv[1][0] == '-': |
| argv[1] = argv[1][1:] |
| if 'U' in argv[1]: |
| sys.stderr.write("ar: non-deterministic mode requested\n") |
| else: |
| argv[1] = argv[1].replace('u', '') |
| argv[1] = 'D' + argv[1] |
| |
| os.execv(real_ar, argv) |
