Mercurial > hg
view contrib/tcsh_completion @ 18792:10669e24eb6c
completion: add a debugpathcomplete command
The bash_completion code uses "hg status" to generate a list of
possible completions for commands that operate on files in the
working directory. In a large working directory, this can result
in a single tab-completion being very slow (several seconds) as a
result of checking the status of every file, even when there is no
need to check status or no possible matches.
The new debugpathcomplete command gains performance in a few simple
ways:
* Allow completion to operate on just a single directory. When used
to complete the right commands, this considerably reduces the
number of completions returned, at no loss in functionality.
* Never check the status of files. For completions that really must
know if a file is modified, it is faster to use status:
hg status -nm 'glob:myprefix**'
Performance:
Here are the commands used by bash_completion to complete, run in
the root of the mozilla-central working dir (~77,000 files) and
another repo (~165,000 files):
All "normal state" files (used by e.g. remove, revert):
mozilla other
status -nmcd 'glob:**' 1.77 4.10 sec
debugpathcomplete -f -n 0.53 1.26
debugpathcomplete -n 0.17 0.41
("-f" means "complete full paths", rather than the current directory)
Tracked files matching "a":
mozilla other
status -nmcd 'glob:a**' 0.26 0.47
debugpathcomplete -f -n a 0.10 0.24
debugpathcomplete -n a 0.10 0.22
We should be able to further improve completion performance once
the critbit work lands. Right now, our performance is limited by
the need to iterate over all keys in the dirstate.
author | Bryan O'Sullivan <bryano@fb.com> |
---|---|
date | Thu, 21 Mar 2013 16:31:28 -0700 |
parents | 2616325766e3 |
children |
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# # tcsh completion for Mercurial # # This file has been auto-generated by tcsh_completion_build.sh for # Mercurial Distributed SCM (version 1.7.5+157-8a220ae0b2ba) # # Copyright (C) 2005 TK Soh. # # This is free software; you can redistribute it and/or modify it under # the terms of the GNU General Public License as published by the Free # Software Foundation; either version 2 of the License, or (at your # option) any later version. # complete hg \ 'n/--cwd/d/' 'n/-R/d/' 'n/--repository/d/' \ 'C/-/( -R --repository \ --cwd \ -y --noninteractive \ -q --quiet \ -v --verbose \ --config \ --debug \ --debugger \ --encoding \ --encodingmode \ --traceback \ --time \ --profile \ --version \ -h --help)/' \ 'p/1/(add addremove annotate blame archive \ backout bisect bookmarks branch branches \ bundle cat clone commit ci \ copy cp debugancestor debugbuilddag debugcheckstate \ debugcommands debugcomplete debugdag debugdata debugdate \ debugfsinfo debugignore debugindex debugindexdot debuginstall \ debugpushkey debugrebuildstate debugrename debugrevspec debugsetparents \ debugstate debugsub debugwalk diff export \ forget grep heads help identify \ id import patch incoming in \ init locate log history manifest \ merge outgoing out parents paths \ pull push recover remove rm \ rename move mv resolve revert \ rollback root serve showconfig debugconfig \ status st summary sum tag \ tags tip unbundle update up \ checkout co verify version)/'