tests/svn-safe-append.py

packaging: remove version info from Breaks+Replaces in Debian package

The versioned Breaks: and Replaces: cause problem when trying to install
our package over the one in Debian.

  $ sudo apt install ./packages/debian-buster/mercurial_5.2~rc0+15-buster-a2ff3aff81d2_amd64.deb
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Note, selecting 'mercurial' instead of './packages/debian-buster/mercurial_5.2~rc0+15-buster-a2ff3aff81d2_amd64.deb'
  Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:

  The following packages have unmet dependencies:
   mercurial : Breaks: mercurial-common (< 5.2~rc0+15-buster-a2ff3aff81d2) but 5.2~rc0-1 is to be installed
  E: Unable to correct problems, you have held broken packages.

Removing version information resolves the situation.

#!/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 stat
import sys

if sys.version_info[0] >= 3:
    text = os.fsencode(sys.argv[1])
    fname = os.fsencode(sys.argv[2])
else:
    text = sys.argv[1]
    fname = sys.argv[2]

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