Mercurial > hgsubversion
view tests/fixtures/symlinks.sh @ 889:7a98fbadcae9
revsets: huge speedups for fromsvn and svnrev
I have a hgsubversion repo that contains over 300,000 commits.
In that repo, this patch improves performance as follows:
hg --time log -r 'first(fromsvn())'
Before: 40.3 sec
After: 0.8 sec
hg --time log -r 'svnrev(350000)'
Before: 40.3 sec
After: 0.1 sec
Note: the performance of these revset implementations is very sensitive
to doing as little work as possible per line of the rev_map file.
I originally attempted to hide the file format details by hoisting the
parsing of each line up into RevMap.readmapfile, but the current less
abstract code is dramatically (10x or more) faster.
If the revmap file is missing, we error out and print a message
describing what to do.
author | Bryan O'Sullivan <bryano@fb.com> |
---|---|
date | Sat, 12 May 2012 05:38:34 -0700 |
parents | b37c401b7f92 |
children |
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#!/bin/sh # # Generate symlinks.svndump # mkdir temp cd temp mkdir project-orig cd project-orig mkdir trunk mkdir branches cd .. svnadmin create testrepo svnurl=file://`pwd`/testrepo svn import project-orig $svnurl -m "init project" svn co $svnurl project cd project/trunk echo a > a ln -s a linka ln -s a linka2 mkdir d ln -s a d/linka svn add a linka linka2 d svn ci -m "add symlinks" # Move symlinks svn mv linka linkaa svn mv d d2 svn commit -m "moving symlinks" # Update symlinks (test "link " prefix vs applydelta) echo b > b rm linkaa ln -s b linkaa rm d2/linka ln -s b d2/linka svn ci -m "update symlinks" # Replace a symlink with a regular file rm linkaa echo data > linkaa svn propdel svn:special linkaa # Replace another symlink with a regular file in another way # It should mark linka2 as R(eplaced) svn rm linka2 echo data2 > linka2 svn add linka2 svn propdel svn:special linka2 svn rm d2/linka svn ci -m "undo link" cd ../.. svnadmin dump testrepo > ../symlinks.svndump