revlog: fix revlogio.packentry corner case
We want to store version information about the revlog in the first
entry of its index. The code in packentry was using some heuristics
to detect whether this was the first entry, but these heuristics could
fail in some cases (e.g. rev 0 was empty; rev 1 descends directly from
the nullid and is stored as a delta).
We now give the revision number to packentry to avoid heuristics.
#!/bin/sh
cat <<EOF >> $HGRCPATH
[extensions]
transplant=
EOF
hg init t
cd t
echo r1 > r1
hg ci -Amr1 -d'0 0'
echo r2 > r2
hg ci -Amr2 -d'1 0'
hg up 0
echo b1 > b1
hg ci -Amb1 -d '0 0'
echo b2 > b2
hg ci -Amb2 -d '1 0'
echo b3 > b3
hg ci -Amb3 -d '2 0'
hg log --template '{rev} {parents} {desc}\n'
hg clone . ../rebase
cd ../rebase
hg up -C 1
echo '% rebase b onto r1'
hg transplant -a -b tip
hg log --template '{rev} {parents} {desc}\n'
hg clone ../t ../prune
cd ../prune
hg up -C 1
echo '% rebase b onto r1, skipping b2'
hg transplant -a -b tip -p 3
hg log --template '{rev} {parents} {desc}\n'
echo '% remote transplant'
hg clone -r 1 ../t ../remote
cd ../remote
hg transplant --log -s ../t 2 4
hg log --template '{rev} {parents} {desc}\n'
echo '% skip previous transplants'
hg transplant -s ../t -a -b 4
hg log --template '{rev} {parents} {desc}\n'
echo '% skip local changes transplanted to the source'
echo b4 > b4
hg ci -Amb4 -d '3 0'
hg clone ../t ../pullback
cd ../pullback
hg transplant -s ../remote -a -b tip
echo '% remote transplant with pull'
hg -R ../t serve -p 20062 -d --pid-file=../t.pid
cat ../t.pid >> $DAEMON_PIDS
hg clone -r 0 ../t ../rp
cd ../rp
hg transplant -s http://localhost:20062/ 2 4
hg log --template '{rev} {parents} {desc}\n'
echo '% transplant --continue'
hg init ../tc
cd ../tc
cat <<EOF > foo
foo
bar
baz
EOF
echo toremove > toremove
hg ci -Amfoo -d '0 0'
cat <<EOF > foo
foo2
bar2
baz2
EOF
rm toremove
echo added > added
hg ci -Amfoo2 -d '0 0'
echo bar > bar
hg ci -Ambar -d '0 0'
echo bar2 >> bar
hg ci -mbar2 -d '0 0'
hg up 0
echo foobar > foo
hg ci -mfoobar -d '0 0'
hg transplant 1:3
# transplant -c shouldn't use an old changeset
hg up -C
hg transplant 1
hg transplant --continue
hg transplant 1:3
hg locate