Mercurial > hg
view contrib/python-hook-examples.py @ 40978:42f59d3f714d
delta: exclude base candidate much smaller than the target
If a revision's full text is that much bigger than a base candidate full text,
we no longer consider that candidate.
This solves a pathological case we encountered on a very specify repository.
It contains a long series of changesets with a very small manifest (one file)
co-existing with others changesets using a very large manifest.
Without this filtering, we ended up considering a large number of tiny full
snapshots as a potential base. It resulted in very large delta (the size of
the full text) and mercurial spending 99% of its time compressing these
deltas.
The timing of a commit moved from about 400s to about 10s (still slow, but not
ridiculously slow).
author | Boris Feld <boris.feld@octobus.net> |
---|---|
date | Mon, 17 Dec 2018 10:42:19 +0100 |
parents | 1a184b727aff |
children | 2372284d9457 |
line wrap: on
line source
''' 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.changelog.tip() else: last = node diff = patch.diff(repo, first, last) ui.write(patch.diffstat(util.iterlines(diff)))