view setup.cfg @ 4728:ef8907df73fc stable

touch: fix the inconsistent behavior of divergence catching logic (issue6107)

When touching a node, the way we check if it can lead to divergence
is we look at the successors sets of the rev being touched. And if
there is successor revs exists (excluding the case when that successor
set is (A,) for rev A) that means there will be divergence and we warn
the user.
This works fine but there is still a case (which is not covered by looking
at successor sets) which can lead to divergence.

That case is: when there is already a revision exists which is divergent
to the revision being touched. And performing the touch would revive
that "dead" divergence. (Dead because one of the revision is obsolete which
is the one we are touching)

And to see if there is any rev which is divergent to a particular rev
we already have a function which we can use here
i.e. `evolvecmd.divergentsets(repo, ctx_being_touched)`

Changes in test file demonstrate the fixed behaviour.

[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