tests: add interface checks for bundle, statichttp, and union peers I forgot to add these when I initially wrote the test. They inherit from localrepo.localpeer, so they should be explicitly tested. Differential Revision: https://phab.mercurial-scm.org/D810

alias: make alias command lazily resolved With many aliases, resolving them could have some visible overhead. Below is part of traceprof [1] output of `hg bookmark --hidden`: (time unit: ms) 37 \ addaliases dispatch.py:526 37 | __init__ (60 times) dispatch.py:402 33 | findcmd (108 times) cmdutil.py:721 16 | findpossible (49 times) cmdutil.py:683 It may get better by optimizing `findcmd` to do a bisect, but we don't really need to resolve an alias if it's not used, so let's make those command entries lazy. After this patch, `addalias` takes less than 1ms. .. perf:: improved performance when many aliases are defined [1]: https://bitbucket.org/facebook/hg-experimental/src/9aca0dbdbdfc48457e5d2581ca2d6e662fced2e6/hgext3rd/traceprof.pyx Differential Revision: https://phab.mercurial-scm.org/D805

alias: test duplicated definition earlier This patch moves the old definition checking logic introduced by f4b7be3f8430 earlier. So that the test itself does not depend on `aliasdef`. The check is to avoid wrapping a same alias multiple times. It can be done by checking the config name and value (`definition` in code), without constructing a `cmdalias` instance. This makes the next patch easier to review. Differential Revision: https://phab.mercurial-scm.org/D804

uncommit: add a test for uncommit with uncommitondirtywdir config in merge Differential Revision: https://phab.mercurial-scm.org/D809

largefiles: force an on-disk merge Largefiles isn't a good candidate for in-memory merge (it uses a custom dirstate, matcher, and the files might not fit in memory) so have it always run an old-style merge. Differential Revision: https://phab.mercurial-scm.org/D683

merge: allow a custom working context to be passed to update This will allow anyone to enable the first in-menmory merge milestone by wrapping merge.update in an extension and creating an overlayworkingctx. Differential Revision: https://phab.mercurial-scm.org/D682

patchbomb: add test that shows --to and --cc override matching config item As far as I know this has always been true and is intentional (it's in line with many other behaviors), but it wasn't tested.

blackbox: move _openlogfile to a separate method This removes several `stat` syscalls for accessing `_bbvfs` and makes `ui` object cleaner. Differential Revision: https://phab.mercurial-scm.org/D769

blackbox: do not prevent 'chg init' from working Previously, blackbox always appends to blackbox.log and creates the directory for that file on demand. That could be an issue if: 1. chg starts from `$REPO` directory, so `ui._bbrepo` is set. 2. `rm -rf $REPO`. 3. `chg init $REPO`, blackbox writes something and `init` will fail because `$REPO` directory is non-empty. This patch fixes that by verifying whether vfs exists before re-using it. Differential Revision: https://phab.mercurial-scm.org/D768

tests: add a test for blackbox with nested alias configurations I've observed some weirdness around this, and needed to rule some things out. There aren't any bugs in core around this, but it was nice to have confirmation.