bundle: refactor changegroup prune to be its own function Moving the prune function to be a non-nested function allows extensions to control which revisions are allowed in the changegroup. For example, in my shallow repo extension I want to prevent filelogs from being added to the bundle. This also allows an extension to use a filelog implementation that doesn't have revlog.linkrev implemented.

filectx: refactor filectx.rev() to use filectx._changeid The code in filectx.rev() was identical to filectx._changeid. Fixing this allows alternative filectx implementations to only override _changeid.

util: add an optional timestamp parameter to makedate This will be used by the upcoming shelve extension.

util: rename ct variable in makedate to timestamp

merge: add a files method to the mergestate class This will be used in the upcoming shelve extension.

histedit: raise ImportError when demandloading is enabled

run-tests: add --loop support This makes it easy to run tests repeatedly at high loads to look for test failures.

run-tests: --interactive and --jobs no longer conflict

run-tests: sort certain slow tests earlier by keyword There are a few tests that evade the size heuristic

run-tests: drop unused resultslock

run-tests: drop options.child and users

run-tests: remove runchildren, now unused

run-tests: schedule largest tests first

run-tests: introduce thread scheduler