view tests/fixtures/renamedproject.sh @ 931:e1dbd9646d6a

svnwrap: use custom StringIO class in get_file() The wrappers were calling ra.get_file() with a cStringIO object. Empirically, svn 1.7.5 is writing 16kB blocks to the stream object, and cStringIO reallocates its internal buffer and doubles its size whenever it is filled. With large committed files this requires two large memory blocks at the same time. SimpleStringIO implements the mimimum StringIO interface used by ra.get_file() but instead stores all the blocks and "join" them at the end. It means more fragmentation but requires only one large block, without overallocation. Also, 16kB blocks should be friendly to most allocators. In practice, this simple change let me convert a revision containing multiple moderately large files, the largest being around 450MB, with a 32-bits Windows setup, python 2.7, swig svn 1.7.5, in stupid mode, while it was previously aborting with "not enough memory". The same revision still fails in replay mode.
author Patrick Mezard <patrick@mezard.eu>
date Sun, 16 Sep 2012 19:31:49 +0200
parents 942f198b8ff5
children
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#!/bin/sh
#
# Convert a project moving from a non-canonical to canonical
# layout, exercizing the missing plaintext code paths. It also tests
# branch creations where the branch source is not a canonical branch.
#

mkdir temp
cd temp

svnadmin create testrepo
svnurl=file://`pwd`/testrepo

mkdir project-orig
cd project-orig
echo a > a
echo b > b
echo c > c
mkdir d
echo a > d/a
cd ..

# Let's suppose it was actually branched in a previous life
mkdir project-branch
cd project-branch
echo a > a
echo b > b
cd ..

svn import project-orig $svnurl/project-orig -m "init project"
svn import project-branch $svnurl/project-branch -m "init branch"

svn mkdir $svnurl/project -m "create new project hierarchy"
svn mv $svnurl/project-orig $svnurl/project/project -m "rename as project"
svn mv $svnurl/project/project $svnurl/project/trunk -m "rename as project"

svn mkdir $svnurl/project/branches -m "add branches root"
svn mv $svnurl/project-branch $svnurl/project/misplaced -m "incorrect move of the branch"
svn mv $svnurl/project/misplaced $svnurl/project/branches/branch -m "move of the branch"

svn co $svnurl/project
cd project
echo a >> trunk/a
svn ci -m "change a"
echo a >> trunk/a
echo b >> trunk/b
svn rm trunk/c
echo a >> trunk/d/a
svn ci -m "change files in trunk"
# Try the same thing with the branch
echo a >> branches/branch/a
svn rm branches/branch/b
svn ci -m "change a in branch"
cd ..

# Add this to make test_rebuildmeta happy, needs something to convert
svn import project-orig $svnurl/trunk -m "init fake trunk for rebuild_meta"

svnadmin dump testrepo > ../renamedproject.svndump