Mercurial > hg
view contrib/python-hook-examples.py @ 50400:95acba2c29f6
encoding: avoid quadratic time complexity when json-encoding non-UTF8 strings
Apparently the code uses "+=" with a bytes object, which is linear-time, so the
whole encoding is quadratic-time. This patch makes us use a bytearray object,
instead, which has a(n amortized-)constant-time append operation.
The encoding is still not particularly fast, but at least a 10MB file
takes tens of seconds, not many hours to encode.
author | Arseniy Alekseyev <aalekseyev@janestreet.com> |
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date | Mon, 06 Mar 2023 11:27:57 +0000 |
parents | 6000f5b25c9b |
children |
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''' Examples of useful python hooks for Mercurial. ''' 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)))