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
"$TESTDIR/hghave" no-symlink || exit 80
# The following script was used to create the bundle:
#
# hg init symlinks
# cd symlinks
# echo a > a
# mkdir d
# echo b > d/b
# ln -s a a.lnk
# ln -s d/b d/b.lnk
# hg ci -Am t
# hg bundle --base null ../test-no-symlinks.hg
# Extract a symlink on a platform not supporting them
echo % unbundle
hg init t
cd t
hg pull -q "$TESTDIR/test-no-symlinks.hg"
hg update
cat a.lnk && echo
cat d/b.lnk && echo
# Copy a symlink and move another
echo % move and copy
hg copy a.lnk d/a2.lnk
hg mv d/b.lnk b2.lnk
hg ci -Am copy
cat d/a2.lnk && echo
cat b2.lnk && echo
# Bundle and extract again
echo % bundle
hg bundle --base null ../symlinks.hg
cd ..
hg init t2
cd t2
hg pull ../symlinks.hg
hg update
cat a.lnk && echo
cat d/a2.lnk && echo
cat b2.lnk && echo