view tests/svn-safe-append.py @ 31542:48b9c9ca09b7

localrepo: improve vfs documentation

At the beginning of March, I promised Yuya that I would follow up a comment I
made on a patch with improved documention for these vfs objects. Also hat tip
to Pierre-Yves for adding the documentation here in the first place.

#!/usr/bin/env python

from __future__ import absolute_import

__doc__ = """Same as `echo a >> b`, but ensures a changed mtime of b.
Without this svn will not detect workspace changes."""

import os
import sys

text = sys.argv[1]
fname = sys.argv[2]

f = open(fname, "ab")
try:
    before = os.fstat(f.fileno()).st_mtime
    f.write(text)
    f.write("\n")
finally:
    f.close()
inc = 1
now = os.stat(fname).st_mtime
while now == before:
    t = now + inc
    inc += 1
    os.utime(fname, (t, t))
    now = os.stat(fname).st_mtime