Mercurial > hg-stable
view hg @ 44538:c8891bca40fb
rust-status: add bare `hg status` support in hg-core
A lot of performance remains to be gained, most notably by doing more things
in parallel, but also by caching, not falling back to Python but switching
to another regex engine, etc..
I have measured on multiple repositories that this change, when in combination
with the next two patches, improve bare `hg status` performance, and has no
observable impact when falling back (because it does so early).
On the Netbeans repository:
C: 840ms
Rust+C: 556ms
Mozilla Central with the one pattern that causes a fallback removed:
C: 2.315s
Rust+C: 1.700 s
Differential Revision: https://phab.mercurial-scm.org/D7929
author | Raphaël Gomès <rgomes@octobus.net> |
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date | Fri, 17 Jan 2020 15:43:46 +0100 |
parents | 99e231afc29c |
children | c102b704edb5 |
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#!/usr/bin/env python # # mercurial - scalable distributed SCM # # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import import os import sys libdir = '@LIBDIR@' if libdir != '@' 'LIBDIR' '@': if not os.path.isabs(libdir): libdir = os.path.join( os.path.dirname(os.path.realpath(__file__)), libdir ) libdir = os.path.abspath(libdir) sys.path.insert(0, libdir) from hgdemandimport import tracing with tracing.log('hg script'): # enable importing on demand to reduce startup time try: if sys.version_info[0] < 3 or sys.version_info >= (3, 6): import hgdemandimport hgdemandimport.enable() except ImportError: sys.stderr.write( "abort: couldn't find mercurial libraries in [%s]\n" % ' '.join(sys.path) ) sys.stderr.write("(check your install and PYTHONPATH)\n") sys.exit(-1) from mercurial import dispatch dispatch.run()