streamclone: move wire protocol status code from wireproto command This consolidates the code for the streaming clone wire protocol format into streamclone.py. It also eliminates a generator wrapper, which might make streaming clones slightly faster. Differential Revision: https://phab.mercurial-scm.org/D1754

histedit: add ui.log for action count Differential Revision: https://phab.mercurial-scm.org/D1751

run-tests: extract sorting of tests to own function TestRunner._run() is a large function and is difficult to follow. Let's extract the test sorting to its own function to make it shorter. When I refactored run-tests.py several years ago, I put a lot of functionality in methods. The prevailing Mercurial style is to use functions - not classes - where possible. While refactoring the code, I decided to undo this historical mistake of mine by moving the code to a standalone function. Differential Revision: https://phab.mercurial-scm.org/D1750

run-tests: remove dead code related to temp directory Differential Revision: https://phab.mercurial-scm.org/D1749

rebase: switch ui.log calls to common style The old style raised errors in some cases. Differential Revision: https://phab.mercurial-scm.org/D1748

hgweb: link to successors of obsoleted changesets _siblings() prepare various useful properties to use in templates. This function usually prepares parents and children of changesets for use in hgweb templates, but it can be used for successors too. It's needed because item['successors'] is a _hybrid object that works well when used in regular templates, but in hgweb templates work slightly differently and can't get hex nodes of the successors, which are required for these links to work.

hgweb: display fate of obsolete changesets Operations that obsolete changesets store enough metadata to explain what happened after the fact. One way to get that metadata is showsuccsandmarkers function, which returns a list of successors of a particular changeset and appropriate obsolescence markers. Templates have a set of experimental functions that have names starting with obsfate. This patch uses some of these functions to interpret output of succsandmarkers() and produce human-friendly messages that describe what happened to an obsolete changeset, e.g. "pruned" or "rewritten as 6:3de5eca88c00". In commonentry(), succsandmarkers property is made callable so it's only executed on demand; this saves time when changeset is not obsolete, and also in e.g. /shortlog view, where there are a lot of changesets, but we don't need to show each and every one in detail. In spartan theme, succsandmarkers is used instead of the simple "obsolete: yes", in other themes a new line is added to /rev page.