localrepo: add requirement when narrow files creation option present The previous commit taught hg.clone() to define a creation option when file include or exclude patterns are passed. This commit teaches the new repo creation code to convert that creation option into a repository requirement. While not yet used by the narrow extension, the eventual side-effect of this change is that newly-created repositories will have the narrow requirement from their creation onset. Currently, the requirement is added to the repo at exchange.pull() time via a wrapped function in the narrow extension. Differential Revision: https://phab.mercurial-scm.org/D4537

hg: recognize include and exclude patterns when cloning This commit teaches clone() to accept arguments defining file patterns to clone. This is the first step in teaching core code about the existence of a narrow clone. Right now, we only perform validation of the arguments and pass additional options into createopts to influence repository creation. Nothing of consequence happens with that creation option yet, however. For now, arbitrary restrictions exist, such as not allowing patterns for shared repos and disabling local copies when patterns are defined. We can potentially lift these restrictions in the future once partial clone/storage support is more flushed out. I figure it is best to reduce the surface area for bugs for the time being. It may seem weird to prefix these arguments with "store." However, clone is effectively pull + update and file patterns could apply to both the store and the working directory. The prefix is there to disambiguate in the future when this function may want to use different sets of patterns for the store and working directory. Differential Revision: https://phab.mercurial-scm.org/D4536

hg: allow extra arguments to be passed to repo creation (API) Currently, repository creation is influenced by consulting the ui instance and turning config options into requirements. This means that in order to influence repository creation, you need to define and set a config option and that the option must translate to a requirement stored in the .hg/requires file. This commit introduces a new mechanism to influence repository creation. hg.repository() and hg.peer() have been taught to receive a new optional argument defining extra options to apply to repository creation. This value is passed along to the various instance() functions and can be used to influence repository creation. This will allow us to pass rich data directly to repository creation without having to go through the config layer. It also allows us to be more explicit about the features requested during repository creation and provides a natural point to detect unhandled options influencing repository creation. The new code detects when unknown creation options are present and aborts in that case. .. api:: options can now be passed to influence repository creation The various instance() functions to spawn new peers or repository instances now receive a ``createopts`` argument that can be a dict defining additional options to influence repository creation. localrepo.newreporequirements() also receives this argument. Differential Revision: https://phab.mercurial-scm.org/D4535

localrepo: move repo creation logic out of localrepository.__init__ (API) It has long bothered me that local repository creation is handled as part of localrepository.__init__. Upcoming changes I want to make around how repositories are initialized and instantiated will make the continued existence of repository creation code in localrepository.__init__ even more awkward. localrepository instances are almost never constructed directly: instead, callers are supposed to go through hg.repository() to obtain a handle on a repository. And hg.repository() calls localrepo.instance() to return a new repo instance. This commit teaches localrepo.instance() to handle the create=True logic. Most of the code for repo construction has been moved to a standalone function. This allows extensions to monkeypatch the function to further customize freshly-created repositories. A few calls to localrepo.localrepository.__init__ that were passing create=True were converted to call localrepo.instance(). .. api:: local repo creation moved out of constructor ``localrepo.localrepository.__init__`` no longer accepts a ``create`` argument to create a new repository. New repository creation is now performed as part of ``localrepo.instance()`` and the bulk of the work is performed by ``localrepo.createrepository()``. Differential Revision: https://phab.mercurial-scm.org/D4534

subrepo: mask out passwords embedded in the messages displaying a URL I noticed the password in maintenance logs for the "no changes since last push" and "pushing to" messages when pushing with an explicit path. But the test case here with :pushurl was also affected. I didn't see that cloning or pulling subrepos on demand had this problem, but it seems safer to just mask that too. There's a bit of a disconnect here, because it looks like clone is slicing off the password (makes sense not to store it in the hgrc in cleartext). But not shearing it off of an explicit path causes the subrepo not to realize that it already pushed the latest stuff. This is the easiest fix, however.

localrepo: pass ui to newreporequirements() (API) newreporequirements() is called as part of creating a new repository. It doesn't make much sense for it to receive a repo instance as part of determining what requirements for new repos should be. .. api:: localrepo.newreporequirements() receives a ui instead of a repo Differential Revision: https://phab.mercurial-scm.org/D4533

narrow: set opts['narrow'] instead of local variable This will allow the command function in core to infer the presence of the option without duplicating logic. Differential Revision: https://phab.mercurial-scm.org/D4532