tests: More cleanly separate expected hexdump output There are more lines that differ than are in common, and dirstate-v2 will complicate that further. Differential Revision: https://phab.mercurial-scm.org/D10717

dirstate-v2: Add a new experimental `exp-dirstate-v2` repository requirement This requirement is added to `.hg/requires` when creating a new repository if Rust extensions are enabled and the `format.exp-dirstate-v2` config is set. Nothing yet changes based on this requirement, but its mere presence affects some tests (for example if they print `.hg/requires`). The next two changesets update tests’ expected outputs accordingly. There is no CI so far that enables this configuration. Differential Revision: https://phab.mercurial-scm.org/D10716

urlutil: provide some information about "bad url" when processing `pushurl` It appears pushurl only support `<proto>://` entries. This is not obvious and can lead to obscure error. We make the error less obscure as a start.. Differential Revision: https://phab.mercurial-scm.org/D10455

revset: document the `outgoing` behavior if the path resolve to multiple urls Differential Revision: https://phab.mercurial-scm.org/D10454

multi-urls: document the feature We have a feature lets make it visible to people. Differential Revision: https://phab.mercurial-scm.org/D10453

multi-urls: add a boolean suboption that unlock path specification as list When this option is set, a list of patch can be specifed as value for `[paths]` entries. For the command who support it, this behave the same as providing multiple destination of the command line. Differential Revision: https://phab.mercurial-scm.org/D10452

urlutil: move url "fixing" at the time of `ui.paths` initialization Doing such fixing at the time is simpler and will be necessary to deal with urls list in a sane manner. It also reduce the size of fix-config which is always better. I wish we could get ride of the hackish way to pass the root around, I suspect that the `root` variable could be stored as part of the config value, along side the source. However getting to the end of this `root` business is a far too large detours to make now. The test change to `tests/test-hgrc.t` and `test-config.t` are expectied since we are not longer altering the config itself, but the way it is interpreted when building path. This seems more correct. I also added a couple of test call to `test-config.t` and `test-globalopts.t` to clarify that the expanding process is properly happening a the right time. Differential Revision: https://phab.mercurial-scm.org/D10451

rewriteutil: add pointer to help text when rewrite would cause divergence The evolve extension's version of the hint has this pointer. I missed it when I moved it to core. Differential Revision: https://phab.mercurial-scm.org/D10723

changelogv2: use a dedicated on disk format for changelogv2 We drop two unused entry. This is mostly a proof of concept before starting to actually rework the format. Differential Revision: https://phab.mercurial-scm.org/D10667

revlog: do not call Rust code if the index is not compatible with it This will avoid hitting the TypeError we defined in the previous changesets. This is the simplest fix but not the most elegant. Ideally we would teach the Rust code to use any kind of revlog. However this is an adventure for another time. Differential Revision: https://phab.mercurial-scm.org/D10666