view tests/test-convert-cvs-branch @ 10189:e451e599fbcf

patch: support diff data loss detection and upgrade

In worst case, generating diff in upgrade mode can be two times more expensive
than generating it in git mode directly: we may have to regenerate the whole
diff again whenever a git feature is detected. Also, the first diff attempt is
completely buffered instead of being streamed. That said, even without having
profiled it yet, I am convinced we can fast-path the upgrade mode if necessary
were it to be used in regular diff commands, and not only in mq where avoiding
data loss is worth the price.

#!/bin/sh

# This is http://mercurial.selenic.com/bts/issue1148
#     and http://mercurial.selenic.com/bts/issue1447

"$TESTDIR/hghave" cvs || exit 80

cvscall()
{
    cvs -f "$@"
}

echo "[extensions]" >> $HGRCPATH
echo "convert = " >> $HGRCPATH
echo "graphlog = " >> $HGRCPATH
echo "[convert]" >> $HGRCPATH
echo "cvsps.cache=0" >> $HGRCPATH

echo % create cvs repository
mkdir cvsrepo
cd cvsrepo
CVSROOT=`pwd`
export CVSROOT
CVS_OPTIONS=-f
export CVS_OPTIONS
cd ..

cvscall -q -d "$CVSROOT" init

echo % Create a new project

mkdir src
cd src
echo "1" > a
echo "1" > b
cvscall import -m "init" src v0 r0 | sort
cd ..
cvscall co src
cd src

echo % Branch the project

cvscall tag -b BRANCH
cvscall up -r BRANCH > /dev/null

echo % Modify file a, then b, then a 

echo "2" > a
cvscall ci -m "mod a" | grep '<--' | sed -e 's:.*src/\(.*\),v.*:checking in src/\1,v:g'

echo "2" > b
cvscall ci -m "mod b" | grep '<--' | sed -e 's:.*src/\(.*\),v.*:checking in src/\1,v:g'

echo "3" > a
cvscall ci -m "mod a again" | grep '<--' | sed -e 's:.*src/\(.*\),v.*:checking in src/\1,v:g'

echo % Convert

cd ..
hg convert src | sed -e 's/connecting to.*cvsrepo/connecting to cvsrepo/g'

echo % Check the result

hg -R src-hg glog --template '{rev} ({branches}) {desc} files: {files}\n'

echo ""

echo % issue 1447
cvscall()
{
    echo cvs -f "$@"
    cvs -f "$@"
    sleep 1
}

cvsci()
{
    echo cvs -f ci "$@"
    cvs -f ci "$@" >/dev/null 2>&1
    sleep 1
}

cvscall -Q -d `pwd`/cvsmaster2 init >/dev/null 2>&1
cd cvsmaster2
CVSROOT=`pwd`
export CVSROOT
mkdir foo
cd ..
cvscall -Q co -d cvswork2 foo

cd cvswork2
echo foo > a.txt
echo bar > b.txt
cvscall -Q add a.txt b.txt
cvsci -m "Initial commit"

echo foo > b.txt
cvsci -m "Fix b on HEAD"

echo bar > a.txt
cvsci -m "Small fix in a on HEAD"

cvscall -Q tag -b BRANCH
cvscall -Q up -P -rBRANCH

echo baz > b.txt
cvsci -m "Change on BRANCH in b"

hg debugcvsps -x --parents foo | sed -e 's/Author:.*/Author:/' -e 's/Date:.*/Date:/'

cd ..