tests/bzr-definitions

debugbuilddag: use context manager for progress, locks, transaction

I minor side-effect is that .hg/localtags is now written before the
transaction commits.

Differential Revision: https://phab.mercurial-scm.org/D3777

# this file holds the definitions that are used in various bzr tests

TERM=dumb; export TERM
echo '[extensions]' >> $HGRCPATH
echo 'convert = ' >> $HGRCPATH

glog()
{
    hg log -G --template '{rev}@{branch} "{desc|firstline}" files: {files}\n' "$@"
}

manifest()
{
    echo "% manifest of $2"
    hg -R $1 manifest -v -r $2
}