view tests/test-convert-cvsnt-mergepoints @ 10251:a19d2993385d stable

subrepo: fix merging of already merged subrepos (issue1986)

This fixes a bug seen when merging a main repo which contains a subrepo when
both repos have been merged before. Each repo (main and sub) has two
branches, both of which have been merged before.

In a subrepo, if the revision to merge to is an ancestor of the current rev,
then the merge should be a noop.

Test provided by Steve Losh.

#!/bin/sh

"$TESTDIR/hghave" cvs || exit 80

filterpath()
{
    eval "$@" | sed "s:$CVSROOT:*REPO*:g"
}

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

# output of 'cvs ci' varies unpredictably, so discard most of it
# -- just keep the part that matters
cvsci()
{
    echo cvs -f ci -f "$@"
    cvs -f ci -f "$@" 2>&1 | egrep "^(new|initial) revision:"
}

hgcat()
{
    hg --cwd src-hg cat -r tip "$1"
}

echo "[extensions]" >> $HGRCPATH
echo "convert = " >> $HGRCPATH
echo "graphlog = " >> $HGRCPATH

echo "% create cvs repository"
mkdir cvsmaster
cd cvsmaster
CVSROOT=`pwd`
export CVSROOT
CVS_OPTIONS=-f
export CVS_OPTIONS
cd ..
filterpath cvscall -Q -d "$CVSROOT" init

echo "% checkout #1: add foo.txt"
cvscall -Q checkout -d cvsworktmp .
cd cvsworktmp
mkdir foo
cvscall -Q add foo
cd foo
echo foo > foo.txt
cvscall -Q add foo.txt 
cvsci -m "add foo.txt" foo.txt
 
cd ../..
rm -rf cvsworktmp

echo "% checkout #2: create MYBRANCH1 and modify foo.txt on it"
cvscall -Q checkout -d cvswork foo

cd cvswork

cvscall -q rtag -b -R MYBRANCH1 foo
cvscall -Q update -P -r MYBRANCH1
echo bar > foo.txt
cvsci -m "bar" foo.txt
echo baz > foo.txt
cvsci -m "baz" foo.txt

echo "% create MYBRANCH1_2 and modify foo.txt some more"
cvscall -q rtag -b -R -r MYBRANCH1 MYBRANCH1_2 foo
cvscall -Q update -P -r MYBRANCH1_2

echo bazzie > foo.txt
cvsci -m "bazzie" foo.txt

echo "% create MYBRANCH1_1 and modify foo.txt yet again"
cvscall -q rtag -b -R MYBRANCH1_1 foo
cvscall -Q update -P -r MYBRANCH1_1

echo quux > foo.txt
cvsci -m "quux" foo.txt

echo "% merge MYBRANCH1 to MYBRANCH1_1"
filterpath cvscall -Q update -P -jMYBRANCH1
# carefully placed sleep to dodge cvs bug (optimization?) where it
# sometimes ignores a "commit" command if it comes too fast (the -f
# option in cvsci seems to work for all the other commits in this
# script)
sleep 1
echo xyzzy > foo.txt
cvsci -m "merge1+clobber" foo.txt

echo "% return to trunk and merge MYBRANCH1_2"
cvscall -Q update -P -A
filterpath cvscall -Q update -P -jMYBRANCH1_2
cvsci -m "merge2" foo.txt

REALCVS=`which cvs`
echo "for x in \$*; do if [ \"\$x\" = \"rlog\" ]; then echo \"RCS file: $CVSROOT/foo/foo.txt,v\"; cat $TESTDIR/test-convert-cvsnt-mergepoints.rlog; exit 0; fi; done; $REALCVS \$*" > ../cvs
chmod +x ../cvs
PATH=..:${PATH} hg debugcvsps --parents foo | sed -e 's/Author:.*/Author:/' -e 's/Date:.*/Date:/'

cd ..