comparison mercurial/util.py @ 47417:9ea525216edb

copyfiles: deal with existing file when hardlinking

If the hardlinking fails, we fallback to `shutil.copy`, but do not consider
future hardlinking doomed.

This is a slight improvement from the current situation, we still avoid
hardliking in a case we might be able to do it. However this does not have an
impact of the rest of the operation.

(This is an opportunity improvement while looking at something next to that.)

Differential Revision: https://phab.mercurial-scm.org/D10841

47416:1c7f3d911d0f

        settopic()

        if hardlink:
            try:
                oslink(src, dst)
            except (IOError, OSError):
                hardlink = False
                shutil.copy(src, dst)
        else:
            shutil.copy(src, dst)
        num += 1
        if progress:

47417:9ea525216edb

        settopic()

        if hardlink:
            try:
                oslink(src, dst)
            except (IOError, OSError) as exc:
                if exc.errno != errno.EEXIST:
                    hardlink = False
                # XXX maybe try to relink if the file exist ?
                shutil.copy(src, dst)
        else:
            shutil.copy(src, dst)
        num += 1
        if progress: