view tests/svn-safe-append.py @ 33113:fc290a39590d

setup: replace runhg() with an hgcommand helper class

Replace the runhg() function with an hgcommand helper class.  hgcommand has as
run() function similar to runhg(), but no longer requires the caller to pass in
the exact path to python and the hg script, and the environment settings for
invoking hg.

For now this diff contains no behavior changes, but in the future this will
make it easier for the hgcommand helper class to more intelligently figure out
the proper way to invoke hg.

#!/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