packaging: require mercurial >= 4.5
Otherwise building the doc package fails with:
(third party extension evolve requires version 4.5 or newer of Mercurial; disabling)
Exception occurred:
File "/usr/lib/python2.7/dist-packages/mercurial/help.py", line 624, in help_
raise error.Abort(msg, hint=hint)
Abort: no such help topic: evolve
Test that share-clones use the cache in the original repository.
$ . $TESTDIR/testlib/common.sh
$ hg init share-base
$ cd share-base/
$ cat >> .hg/hgrc <<EOF
> [extensions]
> evolve=
> share=
> EOF
$ hg debugbuilddag .+3:branchpoint+4*branchpoint+2
$ cd ..
$ hg --config extensions.share= share -U share-base share-client
$ cd share-client
$ hg debugupdatecache
$ test -d .hg/cache
[1]
$ test -d ../share-base/.hg/cache