sslutil: move code examining _canloaddefaultcerts out of _defaultcacerts Before, the return of _defaultcacerts() was 1 of 3 types. This was difficult to read. Make it return a path or None. We had to update hghave.py in the same patch because it was also looking at this internal function. I wasted dozens of minutes trying to figure out why tests were failing until I found the code in hghave.py...

sslutil: further refactor sslkwargs The logic here and what happens with web.cacerts is mind numbing. Make the code even more explicit.

sslutil: document and slightly refactor sslkwargs This will help me and any reviewers keep sane as this code is refactored.

localrepo: remove a couple of local type aliases The local aliases are unused now, and were confusing mypy's type checker.

cmdutil: typo fix in comment

tests: add globs for Windows

chgserver: add [alias] to confighash The [alias] config section affects a global state: commands.table. It's hard to trace whether an alias is added by a config option or an extension, and add/remove aliases in a safe way per chg request. It will hurt performance a bit if we clean the table and parse aliases every time. Therefore let's just add it to confighash. This will make chg pass test-pager.t.

devel: use the 'config' argument for the dirstate normalisation develwarn

devel: use the new 'config' argument for the update develwarn

devel: use the new 'config' argument for the revset develwarn