view setup.cfg @ 5777:c5dfbbe4363d

evolve: when relocating, optionally first try to do it using in-memory merge

This patch adds a config option to let run evolve's relocation step
using in-memory merge. It is disabled by default. When the option is
on, the relocation is first attempted in memory. If that fails because
of merge conflicts, it retries that commit in the working copy.

There are a few reasons that I made it configurable. The most
important one is that the precommit hook won't trigger when using
in-memory merge. Another reason is that it lets us roll out the
feature slowly to our users at Google.

For now, we also update the working copy after creating the commit (in the
successful case, when there are no merge conflicts). The next patch will make it
so we don't do that update.

Because of the unnecessary working-copy update, this patch doesn't
provide any benefit on its own. Evolving 29 commits that each change
one line in the hg slows down from ~4.5s to ~4.8s when the config
option is on.

I've added `#testcases inmemory ondisk` to select `.t` files. Almost
all differences are because of the new "hit merge conflicts" message
and retrying the merge. There's also one difference in
`test-stabilize-order.t` caused by the different order of working copy
updates (we now update the working copy at the end).

[flake8]
ignore =
         #closing bracket does not match indentation of opening bracket's line
         E123,
         # closing bracket does not match visual indentation
         E124,
         # visually indented line with same indent as next logical line
         E129,
         # at least two spaces before inline comment
         E261,
         # too many leading '#' for block comment
         E266,
         # expected 2 blank lines, found 0
         E302,
         # expected 2 blank lines after end of function or class
         E305,
         # module level import not at top of file
         E402,
         # line too long (82 > 79 characters)
         E501,
         # do not assign a lambda expression, use a def
         E731,
         # class names should use CapWords convention
         N801,
         # line break occurred before a binary operator
         W503
builtins=xrange, execfile