manifest: rename dir argument and attribute to tree dir shadows a built-in. We use it throughout the manifest code, which is unfortunate. This commit updates just manifestrevlog to be more well behaved. .. api:: renamed manifest.manifestrevlog.__init__ dir argument to tree Differential Revision: https://phab.mercurial-scm.org/D4276

manifest: set appropriate cache entry when clearing _dirlogcache() manifestrevlog applies to any manifest, not just the root manifest. Resetting the cache and populating its root entry with self is not correct when the instance does not refer to the root manifest. This has no test fallout. So I'm guessing we only ever call clearcaches() on the root manifest. Or we have no test coverage that are impacted by a bad cache on a non-root manifestrevlog. Differential Revision: https://phab.mercurial-scm.org/D4275

manifest: remove addgroup() from manifestlog and imanifestlog addgroup() is part of the storage interface for manifests. Unfortunately, we don't yet have a formal storage interface for manifests. (One will be established in subsequent commits.) One thing is for sure, addgroup() doesn't belong on imanifestlog - at least not unless we extend that interface to encompass storage. For now, let's access addgroup() on the _revlog attribute, just like we do for tree manifests. Even though this violates visibility, it is consistent. Differential Revision: https://phab.mercurial-scm.org/D4274

repository: clarify role of imanifestlog Looking at the implementation of manifest.manifestlog, it is highly tailored towards servicing the root manifest. So clarify that in the interface docstring. Differential Revision: https://phab.mercurial-scm.org/D4273

changegroup: change topics during generation Changegroup generation and consumption currently uses different sets of topics. Generation uses "bundling" and consumption uses the name of the thing being consumed. This commit makes the topic and unit names consistent on both ends. The reason I chose to change the generation side is because when "bundling" is used for 3 different stages, it is unclear which stage of changegroup generation we're in. By making the topics "changesets," "manifests," and "files," one can get a better feel for how far along in the bundling process we are. Differential Revision: https://phab.mercurial-scm.org/D4272

changegroup: rename mfs to manifests In the name of readability. Differential Revision: https://phab.mercurial-scm.org/D4271