paper: show branch/tags/bookmarks when browsing (issue3559) Browse (or manifest) action allows browsing the directory structure at some specified revision. In gitweb and monoblue styles, the revision header already has branch/tag/bookmark information for the revision, but in paper style this header was only showing tags. This patch adds branches and bookmarks. Branch name needs to be obtained in this special way to be consistent with regular changeset page, where in paper style default branch is never shown.

revset: extract addset._iterordered to free function It never uses self, so let's make it less dependent on variables.

revset: use fastasc/fastdesc switch consistently in addset.__iter__

revset: drop redundant filteredset from right-hand side set of "or" operation Since 5548f558db3d, it should no longer be necessary because the addset can remove duplicates correctly.

getbundle: sort bundlecaps before exchanging then over the wire The 'bundlecaps' argument is built as a set, we need to stabilise the order before exchanging them. Otherwise, in the test, http logs are unstable when the 'bundlecaps' contains something (eg: using bundle2).

hg-ssh: reject push earlier (on pretxnopen) We now have a lock triggered for any transaction. We use it to ensure no-read are made in read-only mode. We need more that just "no changegroup is added", since bundle2 allows for more than just changegroup to be exchanged. We still protect pushkey as it may write data without opening a transaction.

test: test both bundle1 and bundle2 paths in 'test-push-hook-lock.t' The locking scheme is a bit different in each cases. So we explicitly test each case.