Mercurial > hg
view tests/test-template-engine.t @ 16414:e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
This greatly speeds up node->rev lookups, with results that are
often user-perceptible: for instance, "hg --time log" of the node
associated with rev 1000 on a linux-2.6 repo improves from 0.3
seconds to 0.03. I have not found any instances of slowdowns.
The new perfnodelookup command in contrib/perf.py demonstrates the
speedup more dramatically, since it performs no I/O. For a single
lookup, the new code is about 40x faster.
These changes also prepare the ground for the possibility of further
improving the performance of prefix-based node lookups.
author | Bryan O'Sullivan <bryano@fb.com> |
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date | Thu, 12 Apr 2012 14:05:59 -0700 |
parents | dc6b9b3bf63e |
children | f2719b387380 |
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$ cat > engine.py << EOF > > from mercurial import templater > > class mytemplater(object): > def __init__(self, loader, filters, defaults): > self.loader = loader > > def process(self, t, map): > tmpl = self.loader(t) > for k, v in map.iteritems(): > if k in ('templ', 'ctx', 'repo', 'revcache', 'cache'): > continue > if hasattr(v, '__call__'): > v = v(**map) > v = templater.stringify(v) > tmpl = tmpl.replace('{{%s}}' % k, v) > yield tmpl > > templater.engines['my'] = mytemplater > EOF $ hg init test $ echo '[extensions]' > test/.hg/hgrc $ echo "engine = `pwd`/engine.py" >> test/.hg/hgrc $ cd test $ cat > mymap << EOF > changeset = my:changeset.txt > EOF $ cat > changeset.txt << EOF > {{rev}} {{node}} {{author}} > EOF $ hg ci -Ama adding changeset.txt adding mymap $ hg log --style=./mymap 0 97e5f848f0936960273bbf75be6388cd0350a32b test