[PATCH STABLE] log: restore cache used by --copies
Patrick Mezard
patrick at mezard.eu
Sat Feb 25 18:40:57 UTC 2012
# HG changeset patch
# User Patrick Mezard <patrick at mezard.eu>
# Date 1330195195 -3600
# Branch stable
# Node ID 280e834c9d15b0d65a0ee24374671e0cd2147f4e
# Parent 60101427d618a0d774d2d1fd29838ec81f3bba7c
log: restore cache used by --copies
The {filelog -> linkrev -> copyfrom} cache was refactored and broken by:
changeset: 10060:f780b1098efc
user: Patrick Mezard <pmezard at gmail.com>
date: Sun Dec 13 18:06:24 2009 +0100
summary: templatekw: change {file_copies} behaviour, add
{file_copies_switch}
With --copies, this cache is accessed for every touched file of every revision.
Unfortunately it is recreated for every revision, which means filelogs are
parsed again. This patch makes the cache global again for all revisions.
A couple of indicative timings of "hg log --copies", before and after:
hg: 44s / 5s
mozilla --limit 10000: 3m51s / 2m32s
mozilla: 23m46s / 12m23s
I do not know any good tool to trace memory consumption of these runs for
comparisons. Watching the full mozilla run in top, the process did not seem to
misbehave.
diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -3849,9 +3849,11 @@
limit = cmdutil.loglimit(opts)
count = 0
- endrev = None
- if opts.get('copies') and opts.get('rev'):
- endrev = max(scmutil.revrange(repo, opts.get('rev'))) + 1
+ getrenamed, endrev = None, None
+ if opts.get('copies'):
+ if opts.get('rev'):
+ endrev = max(scmutil.revrange(repo, opts.get('rev'))) + 1
+ getrenamed = templatekw.getrenamedfn(repo, endrev=endrev)
df = False
if opts["date"]:
@@ -3895,9 +3897,8 @@
return
copies = None
- if opts.get('copies') and rev:
+ if getrenamed is not None and rev:
copies = []
- getrenamed = templatekw.getrenamedfn(repo, endrev=endrev)
for fn in ctx.files():
rename = getrenamed(fn, rev)
if rename:
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