view tests/svn-safe-append.py @ 32395:7948adb53e28

base85: add version to help detect breaking binary changes
author Jun Wu <quark@fb.com>
date Tue, 25 Apr 2017 17:45:48 -0700
parents bdba6a2015d0
children ffa3026d4196
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#!/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