tests/test-branchmap

verify: fix "missing revlog!" errors for revlog format v0 and add test

With revlog format v0 the .d files are empty if the only revision stored is an
empty file. Since Mercurial can no longer create format v0 repositories, but
still use it, add a script which creates a repository with a single empty file.
This can be used in other tests if wanted.

#!/bin/sh

hgserve()
{
    hg serve -a localhost -p $HGPORT1 -d --pid-file=hg.pid -E errors.log -v $@ \
        | sed -e 's/:[0-9][0-9]*//g' -e 's/http:\/\/[^/]*\//http:\/\/localhost\//'
    cat hg.pid >> "$DAEMON_PIDS"
}

hg init a
hg --encoding utf-8 -R a branch æ
echo foo > a/foo
hg -R a ci -Am foo

hgserve -R a --config web.push_ssl=False --config web.allow_push=* --encoding latin1
hg --encoding utf-8 clone http://localhost:$HGPORT1 b
hg --encoding utf-8 -R b log
echo bar >> b/foo
hg -R b ci -m bar
hg --encoding utf-8 -R b push | sed "s/$HGPORT1/PORT/"
hg -R a --encoding utf-8 log

kill `cat hg.pid`


# verify 7e7d56fe4833 (encoding fallback in branchmap to maintain compatibility with 1.3.x)

cat <<EOF > oldhg
import sys
from mercurial import ui, hg, commands

class StdoutWrapper(object):
    def __init__(self, stdout):
        self._file = stdout

    def write(self, data):
        if data == '47\n':
            # latin1 encoding is one %xx (3 bytes) shorter
            data = '44\n'
        elif data.startswith('%C3%A6 '):
            # translate to latin1 encoding
            data = '%%E6 %s' % data[7:]
        self._file.write(data)

    def __getattr__(self, name):
        return getattr(self._file, name)

sys.stdout = StdoutWrapper(sys.stdout)
sys.stderr = StdoutWrapper(sys.stderr)

myui = ui.ui()
repo = hg.repository(myui, 'a')
commands.serve(myui, repo, stdio=True)
EOF

echo baz >> b/foo
hg -R b ci -m baz
hg push -R b -e 'python oldhg' ssh://dummy/ --encoding latin1