Store empty (default) branch in branch cache, too.
Operations on this branch don't work otherwise.
Reading branches.cache had to be adjusted to allow an empty label.
Adjusted reading of the cache tip for symmetry, no functional change here.
#!/bin/sh
set -e
echo "[extensions]" >> $HGRCPATH
echo "hbisect=" >> $HGRCPATH
echo % init
hg init
echo % committing changes
count=0
echo > a
while test $count -lt 32 ; do
echo 'a' >> a
test $count -eq 0 && hg add
hg ci -m "msg $count" -d "$count 0"
echo % committed changeset $count
count=`expr $count + 1`
done
echo % log
hg log
echo % hg up -C
hg up -C
echo % bisect test
hg bisect init
hg bisect bad
hg bisect good 1
hg bisect good
hg bisect good
hg bisect good
hg bisect bad
hg bisect good