Mercurial > public > mercurial-scm > hg
comparison mercurial/util.py @ 23899:4e451d1359de
copyfile: allow optional hardlinking
Some code paths use 'copyfiles' (full tree) for a single file to take advantage
of the best-effort-hard-linking parameter. We add similar parameter and logic
to 'copyfile' (single file) for this purpose.
The single file version have the advantage to overwrite the destination file if
it exists.
| author | Pierre-Yves David <pierre-yves.david@fb.com> |
|---|---|
| date | Mon, 05 Jan 2015 12:39:09 -0800 |
| parents | 6c44cef5baa2 |
| children | 3cbb5bf4035d |
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| 23898:b21c2e0ee8a3 | 23899:4e451d1359de |
|---|---|
| 714 raise error.SignatureError | 714 raise error.SignatureError |
| 715 raise | 715 raise |
| 716 | 716 |
| 717 return check | 717 return check |
| 718 | 718 |
| 719 def copyfile(src, dest): | 719 def copyfile(src, dest, hardlink=False): |
| 720 "copy a file, preserving mode and atime/mtime" | 720 "copy a file, preserving mode and atime/mtime" |
| 721 if os.path.lexists(dest): | 721 if os.path.lexists(dest): |
| 722 unlink(dest) | 722 unlink(dest) |
| 723 if hardlink: | |
| 724 try: | |
| 725 oslink(src, dest) | |
| 726 return | |
| 727 except (IOError, OSError): | |
| 728 pass # fall back to normal copy | |
| 723 if os.path.islink(src): | 729 if os.path.islink(src): |
| 724 os.symlink(os.readlink(src), dest) | 730 os.symlink(os.readlink(src), dest) |
| 725 else: | 731 else: |
| 726 try: | 732 try: |
| 727 shutil.copyfile(src, dest) | 733 shutil.copyfile(src, dest) |