subrepo: fix exception on revert when "all" option is omitted
Since
fafdff7e9c43, backout does not set opts['all'], which causes KeyError
at hgsubrepo.revert.
test-subrepo: add tests for subrepo "storeclean" checks
These tests verify that subrepos are not pushed when their store is clean versus
a given target repository.
subrepo: do not push mercurial subrepos whose store is clean
This patch stops mercurial from pushing unmodified subrepos. An unmodified
subrepo is one whose store is "clean" versus a given target subrepo.
Note that subrepos may have a clean store versus a target repo but not versus another. This patch handles this scenario by individually keeping track of the state of the store versus all push targets.
Tests will be added on the following revision.