sapling/tests/test-convert-hg-svn
Patrick Mezard 9499717be0 convert/svn: make sink recover gracefully from empty changeset
Otherwise when processing a changeset that in fact changes no files
(perhaps due to bug in import from CVS) can get something like:
  unexpected svn output:
  abort: unable to cope with svn output

Bug report and patch draft by Jesse Glick <jesse.glick@sun.com>
2009-12-07 12:44:15 -05:00

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#!/bin/sh
"$TESTDIR/hghave" svn svn-bindings || exit 80
fix_path()
{
tr '\\' /
}
echo "[extensions]" >> $HGRCPATH
echo "convert = " >> $HGRCPATH
echo "mq = " >> $HGRCPATH
svnpath=`pwd | fix_path`/svn-repo
svnadmin create $svnpath
cat > $svnpath/hooks/pre-revprop-change <<'EOF'
#!/bin/sh
REPOS="$1"
REV="$2"
USER="$3"
PROPNAME="$4"
ACTION="$5"
if [ "$ACTION" = "M" -a "$PROPNAME" = "svn:log" ]; then exit 0; fi
if [ "$ACTION" = "A" -a "$PROPNAME" = "hg:convert-branch" ]; then exit 0; fi
if [ "$ACTION" = "A" -a "$PROPNAME" = "hg:convert-rev" ]; then exit 0; fi
echo "Changing prohibited revision property" >&2
exit 1
EOF
chmod +x $svnpath/hooks/pre-revprop-change
# SVN wants all paths to start with a slash. Unfortunately,
# Windows ones don't. Handle that.
svnurl=$svnpath
expr $svnurl : "\/" > /dev/null
if [ $? -ne 0 ]; then
svnurl='/'$svnurl
fi
svnurl=file://$svnurl
svn co $svnurl $svnpath-wc
cd $svnpath-wc
echo a > a
svn add a
svn ci -m'added a' a
cd ..
echo % initial roundtrip
hg convert -s svn -d hg $svnpath-wc $svnpath-hg | grep -v initializing
hg convert -s hg -d svn $svnpath-hg $svnpath-wc
echo % second roundtrip should do nothing
hg convert -s svn -d hg $svnpath-wc $svnpath-hg
hg convert -s hg -d svn $svnpath-hg $svnpath-wc
echo % new hg rev
hg clone $svnpath-hg $svnpath-work
cd $svnpath-work
echo b > b
hg add b
hg ci -mb
echo '% adding an empty revision'
hg qnew -m emtpy empty
hg qfinish -a
cd ..
echo % echo hg to svn
hg --cwd $svnpath-hg pull -q $svnpath-work
hg convert -s hg -d svn $svnpath-hg $svnpath-wc
echo % svn back to hg should do nothing
hg convert -s svn -d hg $svnpath-wc $svnpath-hg
echo % hg back to svn should do nothing
hg convert -s hg -d svn $svnpath-hg $svnpath-wc