context: use changelogrevision
Upcoming patches will make the changelogrevision object perform
lazy parsing. Let's switch to it.
Because we're switching from a tuple to an object, everthing that
accesses the internal cached attribute needs to be updated to access
via attributes. A nice side-effect is this makes the code easier to
read!
Surprisingly, this appears to make revsets accessing this data
slightly faster (values are before series, p1, this patch):
author(mpm)
0.896565
0.929984
0.914234
desc(bug)
0.887169
0.935642
0.921073
date(2015)
0.878797
0.908094
0.891980
extra(rebase_source)
0.865446
0.922624
0.912514
author(mpm) or author(greg)
1.801832
1.902112
1.860402
author(mpm) or desc(bug)
1.812438
1.860977
1.844850
date(2015) or branch(default)
0.968276
1.005824
0.994673
author(mpm) or desc(bug) or date(2015) or extra(rebase_source)
3.656193
3.743381
3.721032
#!/usr/bin/env python
__doc__ = """Same as `echo a >> b`, but ensures a changed mtime of b.
Without this svn will not detect workspace changes."""
import sys, os
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