1 from mercurial import revset

     2 from mercurial import util

     3 

     4 from . import constants, destination

     5 

     6 try:

     7     mkmatcher = revset._stringmatcher

     8 except AttributeError:

     9     mkmatcher = util.stringmatcher

    10 

    11 

    12 def topicset(repo, subset, x):

    13     """`topic([topic])`

    14     Specified topic or all changes with any topic specified.

    15 

    16     If `topic` starts with `re:` the remainder of the name is treated

    17     as a regular expression.

    18 

    19     TODO: make `topic(revset)` work the same as `branch(revset)`.

    20     """

    21     args = revset.getargs(x, 0, 1, 'topic takes one or no arguments')

    22     if args:

    23         # match a specific topic

    24         topic = revset.getstring(args[0], 'topic() argument must be a string')

    25         if topic == '.':

    26             topic = repo['.'].extra().get('topic', '')

    27         _kind, _pattern, matcher = mkmatcher(topic)

    28     else:

    29         matcher = lambda t: bool(t)

    30     drafts = subset.filter(lambda r: repo[r].mutable())

    31     return drafts.filter(

    32         lambda r: matcher(repo[r].extra().get(constants.extrakey, '')))

    33 

    34 def ngtipset(repo, subset, x):

    35     """`ngtip([branch])`

    36 

    37     The untopiced tip.

    38 

    39     Name is horrible so that people change it.

    40     """

    41     args = revset.getargs(x, 1, 1, 'topic takes one')

    42     # match a specific topic

    43     branch = revset.getstring(args[0], 'ngtip() argument must be a string')

    44     if branch == '.':

    45         branch = repo['.'].branch()

    46     return subset & destination.ngtip(repo, branch)

    47 

    48 def modsetup():

    49     revset.symbols.update({'topic': topicset})

    50     revset.symbols.update({'ngtip': ngtipset})