Mercurial > hg > mercurial-crew-with-dirclash
view tests/fish-merge @ 879:953ccddd57bd
dirstate walking optimizations
The repo walking code introduces a number of calls to dirstate.map.copy(),
significantly slowing down the walk on large trees. When a list of
files is passed to the walking code, we should only look at map entries
relevant to the file list passed in.
dirstate.filterfiles() is added to return a subset of the dirstate map.
The subset includes in files passed in, and if one of the files requested
is actually a directory, it includes any files inside that directory tree.
This brings the time for hg diff Makefile down from 1.7s to .3s on
a linux kernel repo.
Also, the diff command was unconditionally calling makewalk, leading
to an extra pass through repo.changes. This patch avoids the call
to makewalk when commands.diff isn't given a list of patterns, cutting
the time for hg diff (with no args) in half.
Index: mine/mercurial/hg.py
===================================================================
author | mason@suse.com |
---|---|
date | Fri, 12 Aug 2005 07:10:21 -0800 |
parents | 0902ffece4b4 |
children |
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#!/bin/sh set -e set -x # skip commit logs HGMERGE=tkmerge; export HGMERGE EDITOR=true; export EDITOR rm -rf m m1 m2 mkdir m cd m echo "m this that" echo "this" > a echo "that" > b hg init hg addremove hg commit echo "a:" `hg dump a` "b:" `hg dump b` echo cd .. echo "m2 this that " mkdir m2 cd m2 hg branch ../m hg checkout echo "a:" `hg dump a` "b:" `hg dump b` echo cd ../m echo "m this1 that " echo "this1" > a hg commit echo "a:" `hg dump a` "b:" `hg dump b` echo cd .. echo "m1 this1 that " mkdir m1 cd m1 hg branch ../m hg checkout echo "a:" `hg dump a` "b:" `hg dump b` echo cd ../m1 echo "m1 this1 that1" echo "that1" > b hg commit echo "a:" `hg dump a` "b:" `hg dump b` echo cd ../m2 echo "m2 this that2" echo "that2" > b hg commit echo "a:" `hg dump a` "b:" `hg dump b` echo cd ../m1 echo "m1:m2 this1 that1 that2" hg merge ../m2 # b should conflict, a should be fine echo "a:" `hg dump a` "b:" `hg dump b` echo cd ../m2 echo "m2 this2 that2" echo "this2" > a hg commit echo "a:" `hg dump a` "b:" `hg dump b` echo cd ../m2 echo "m2:m this12 that2" hg merge ../m # a should conflict, b should be fine echo "a:" `hg dump a` "b:" `hg dump b` echo # now here's the interesting bit # if we choose ancestor by file, no conflicts # otherwise we've got two equally close ancestors, each with a conflict # if we go back to the root, we'll have both conflicts again echo "m2:m1 this12 that12" hg merge ../m1 # should be clean echo "a:" `hg dump a` "b:" `hg dump b` echo