view mercurial/pushkey.py @ 11524:24965bb270b7

dispatch: add shell aliases

This patch adds git-style "shell aliases" to Mercurial.

Any alias with a definition beginning with a '!' will be treated as a shell
alias. For example:

    [alias]
    echo = !echo
    qempty = !hg qrefresh -X "`hg root`" ; echo Emptied patch "`hg qtop`"

    $ hg echo foo
    foo
    $ hg qempty
    Emptied patch foo
    $

# pushkey.py - dispatching for pushing and pulling keys
#
# Copyright 2010 Matt Mackall <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

def _nslist(repo):
    n = {}
    for k in _namespaces:
        n[k] = ""
    return n

_namespaces = {"namespaces": (lambda *x: False, _nslist)}

def register(namespace, pushkey, listkeys):
    _namespaces[namespace] = (pushkey, listkeys)

def _get(namespace):
    return _namespaces.get(namespace, (lambda *x: False, lambda *x: {}))

def push(repo, namespace, key, old, new):
    '''should succeed iff value was old'''
    pk = _get(namespace)[0]
    return pk(repo, key, old, new)

def list(repo, namespace):
    '''return a dict'''
    lk = _get(namespace)[1]
    return lk(repo)