match: teach diffmatcher.visitdir() to return 'all' if possible This patch teaches differencematcher.visitdir() to return 'all' when m1.visitdir() returns 'all' and m2 does not matches. Before this patch, from a differencematcher.visitdir(), we always returned either True or False. We never returned 'all' even when we can. This causes problem when m1 and m2 of a differencematcher are themselves differencematcher. In that case, we try to check: `if self._m2_.visitdir(dir) == 'all'` which will never be 'all' even though it can be. This leads to iterating over a lot of sub-directory manifest, even though we don't want to while extending a narrow clone. I am yet to measure the impact of this but calculating manifest was taking ~50-60 seconds, so this should definitely save some of time there. Differential Revision: https://phab.mercurial-scm.org/D5814

     1

{

     2

    // Enforcing

     3

    "eqeqeq"        : true,     // true: Require triple equals (===) for comparison

     4

    "forin"         : true,     // true: Require filtering for..in loops with obj.hasOwnProperty()

     5

    "freeze"        : true,     // true: prohibits overwriting prototypes of native objects such as Array, Date etc.

     6

    "nonbsp"        : true,     // true: Prohibit "non-breaking whitespace" characters.

     7

    "undef"         : true,     // true: Require all non-global variables to be declared (prevents global leaks)

     8

     9

    // Environments

    10

    "browser"       : true      // Web Browser (window, document, etc)

    11

}