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
cp "$TESTDIR"/printenv.py .
hg init test
cd test
echo foo>foo
hg commit -A -d '0 0' -m 1
hg --config server.uncompressed=True serve -p 20059 -d --pid-file=../hg1.pid
hg serve -p 20060 -d --pid-file=../hg2.pid
# Test server address cannot be reused
hg serve -p 20060 2>&1 | sed -e 's/abort: cannot start server:.*/abort: cannot start server:/'
cd ..
cat hg1.pid hg2.pid >> $DAEMON_PIDS
echo % clone via stream
http_proxy= hg clone --uncompressed http://localhost:20059/ copy 2>&1 | \
sed -e 's/[0-9][0-9.]*/XXX/g' -e 's/[KM]\(B\/sec\)/X\1/'
hg verify -R copy
echo % try to clone via stream, should use pull instead
http_proxy= hg clone --uncompressed http://localhost:20060/ copy2
echo % clone via pull
http_proxy= hg clone http://localhost:20059/ copy-pull
hg verify -R copy-pull
cd test
echo bar > bar
hg commit -A -d '1 0' -m 2
cd ..
echo % pull
cd copy-pull
echo '[hooks]' >> .hg/hgrc
echo 'changegroup = python ../printenv.py changegroup' >> .hg/hgrc
hg pull
cd ..