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
echo "[extensions]" >> $HGRCPATH
echo "hgext.convert=" >> $HGRCPATH
hg init orig
cd orig
echo foo > foo
echo bar > bar
hg ci -qAm 'add foo and bar' -d '0 0'
hg rm foo
hg ci -m 'remove foo' -d '0 0'
mkdir foo
echo file > foo/file
hg ci -qAm 'add foo/file' -d '0 0'
hg tag -d '0 0' some-tag
hg log
cd ..
hg convert orig new 2>&1 | grep -v 'subversion python bindings could not be loaded'
cd new
hg out ../orig
echo '% dirstate should be empty:'
hg debugstate
hg parents -q
hg up -C
hg copy bar baz
echo '% put something in the dirstate:'
hg debugstate > debugstate
grep baz debugstate
echo '% add a new revision in the original repo'
cd ../orig
echo baz > baz
hg ci -qAm 'add baz'
cd ..
hg convert orig new 2>&1 | grep -v 'subversion python bindings could not be loaded'
cd new
hg out ../orig
echo '% dirstate should be the same (no output below):'
hg debugstate > new-debugstate
diff debugstate new-debugstate
echo '% no copies'
hg up -C
hg debugrename baz