hg-cpython: fix new occuring TypeError dd339191f2dc introduced a minor refactoring of error types that highlighted a fragile error creation mechanism that was in place in the Rust `MixedIndex`. `PyErr::from_instance` also accepts a Python class, as long as it's an `Exception` class. Before the aforementioned commit, we never ran into a case where this duck-typing mechanism failed. We rectify this behavior by doing the instantiation ourselves. Differential Revision: https://phab.mercurial-scm.org/D10764

errors: make exit codes class variables instead Kyle pointed out to me that we can simply make the exit codes class variables. Python provides some magic for making them accessible as instance variables. This also makes it easier to let subclasses of existing errors override the exit codes by letting them simply define their own values as class variables. That means that there's no need to pass them into the superclass's constructor arguments, so the superclass doesn't need to expose the them as arguments. (Making a subclass set a different exit code for a subclass of `StorageError` was actually the goal with my recent series.) Differential Revision: https://phab.mercurial-scm.org/D10758

narrow: widen when files are excluded by sparse and not included by narrow In a repo where some directories are included by narrow and the complement are excluded by sparse, it was previously impossible to widen either because trying to widen narrow would complain that the requested files are outside the sparse checkout and trying to widen sparse would complain that the requested files are outside the narrow checkout. This changes the `hg tracked --addinclude` command to only actually update any newly accessible files in the dirstate if they are also accessible via sparse. Differential Revision: https://phab.mercurial-scm.org/D10734

hghave: make error output easier to diagnose I had a typo that meant the new bash check was throwing an exception (due to a missing argument), but it was very hard to diagnose without this change. Differential Revision: https://phab.mercurial-scm.org/D10733

tests: add req on bash for test-transaction-rollback-on-sigpipe (issue6429) I think we could work around this by rewriting the helper scripts in Python, but I don't want to deal with that now and this should prevent failures due to a lack of bash. Differential Revision: https://phab.mercurial-scm.org/D10732

updatecaches: deprecate the `full` argument Now that all users were migrated, we can use deprecate the old way. This would give potential extensions code a heads up on the API change. Differential Revision: https://phab.mercurial-scm.org/D10731

updatecaches: use the `caches` argument instead of a special `full` value After a clone we want to update most cachem, but not exactly all of them. We can now cleanly express this. Differential Revision: https://phab.mercurial-scm.org/D10730