comparison mercurial/util.py @ 31141:b4cd912d7704

util: add allowhardlinks module variable

To enable extensions to enable hardlinks for certain environments, let's move
the 'if False' to be an 'if allowhardlinks' and let extensions modify the
allowhardlinks variable.

Tests on linux ext4 pass with it set to True and to False.

31140:dc8996f855d9

                raise error.SignatureError
            raise

    return check

def copyfile(src, dest, hardlink=False, copystat=False, checkambig=False):
    '''copy a file, preserving mode and optionally other stat info like
    atime/mtime

    checkambig argument is used with filestat, and is useful only if

    oldstat = None
    if os.path.lexists(dest):
        if checkambig:
            oldstat = checkambig and filestat(dest)
        unlink(dest)
    # hardlinks are problematic on CIFS, quietly ignore this flag
    # until we find a way to work around it cleanly (issue4546)
    if False and hardlink:
        try:
            oslink(src, dest)
            return
        except (IOError, OSError):
            pass # fall back to normal copy

31141:b4cd912d7704

                raise error.SignatureError
            raise

    return check

# Hardlinks are problematic on CIFS, do not allow hardlinks
# until we find a way to work around it cleanly (issue4546).
# This is a variable so extensions can opt-in to using them.
allowhardlinks = False

def copyfile(src, dest, hardlink=False, copystat=False, checkambig=False):
    '''copy a file, preserving mode and optionally other stat info like
    atime/mtime

    checkambig argument is used with filestat, and is useful only if

    oldstat = None
    if os.path.lexists(dest):
        if checkambig:
            oldstat = checkambig and filestat(dest)
        unlink(dest)
    if allowhardlinks and hardlink:
        try:
            oslink(src, dest)
            return
        except (IOError, OSError):
            pass # fall back to normal copy