Mercurial > hg
view contrib/python-hook-examples.py @ 33799:05264fc9d8d6
util: make nogc effective for CPython
279cd80059d4 made `util.nogc` a no-op. It was to optimize PyPy. But it slows
down CPython if many objects (like 300k+) are created.
For example, running `hg log -r .` without extensions in `hg-committed` with
14k+ obsmarkers have the following times:
before | after
hg | chg | hg | chg
-----------------------------
1.262 | 0.860 | 1.077 | 0.619 (seconds, best of 20 runs)
Therefore let's re-enable nogc for CPython.
Differential Revision: https://phab.mercurial-scm.org/D402
author | Jun Wu <quark@fb.com> |
---|---|
date | Mon, 14 Aug 2017 22:28:59 -0700 |
parents | 2b585677220e |
children | 1a184b727aff |
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''' Examples of useful python hooks for Mercurial. ''' from __future__ import absolute_import from mercurial import ( patch, util, ) def diffstat(ui, repo, **kwargs): '''Example usage: [hooks] commit.diffstat = python:/path/to/this/file.py:diffstat changegroup.diffstat = python:/path/to/this/file.py:diffstat ''' if kwargs.get('parent2'): return node = kwargs['node'] first = repo[node].p1().node() if 'url' in kwargs: last = repo['tip'].node() else: last = node diff = patch.diff(repo, first, last) ui.write(patch.diffstat(util.iterlines(diff)))