ui: add new config flag for interface selection
This patch introduces a new config flag ui.interface to select the interface
for interactive commands. It currently only applies to chunks selection.
The config can be overridden on a per feature basis with the flag
ui.interface.<feature>.
features for the moment can only be 'chunkselector', moving forward we expect
to have 'histedit' and other commands there.
If an incorrect value is given to ui.interface we print a warning and use the
default interface: text. If HGPLAIN is specified we also use the default
interface: text.
Note that we fail quickly if a feature does not handle all the interfaces
that we permit in ui.interface; in future, we could design a fallback path
(e.g. blackpearl to curses, curses to text), but let's leave that until we
need it.
# registrar.py - utilities to register function for specific purpose
#
# Copyright FUJIWARA Katsunori <foozy@lares.dti.ne.jp> and others
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
from . import (
util,
)
class _funcregistrarbase(object):
"""Base of decorator to register a fuction for specific purpose
This decorator stores decorated functions into own dict 'table'.
The least derived class can be defined by overriding 'formatdoc',
for example::
class keyword(_funcregistrarbase):
_docformat = ":%s: %s"
This should be used as below:
keyword = registrar.keyword()
@keyword('bar')
def barfunc(*args, **kwargs):
'''Explanation of bar keyword ....
'''
pass
In this case:
- 'barfunc' is stored as 'bar' in '_table' of an instance 'keyword' above
- 'barfunc.__doc__' becomes ":bar: Explanation of bar keyword"
"""
def __init__(self, table=None):
if table is None:
self._table = {}
else:
self._table = table
def __call__(self, decl, *args, **kwargs):
return lambda func: self._doregister(func, decl, *args, **kwargs)
def _doregister(self, func, decl, *args, **kwargs):
name = self._getname(decl)
if func.__doc__ and not util.safehasattr(func, '_origdoc'):
doc = func.__doc__.strip()
func._origdoc = doc
func.__doc__ = self._formatdoc(decl, doc)
self._table[name] = func
self._extrasetup(name, func, *args, **kwargs)
return func
def _parsefuncdecl(self, decl):
"""Parse function declaration and return the name of function in it
"""
i = decl.find('(')
if i >= 0:
return decl[:i]
else:
return decl
def _getname(self, decl):
"""Return the name of the registered function from decl
Derived class should override this, if it allows more
descriptive 'decl' string than just a name.
"""
return decl
_docformat = None
def _formatdoc(self, decl, doc):
"""Return formatted document of the registered function for help
'doc' is '__doc__.strip()' of the registered function.
"""
return self._docformat % (decl, doc)
def _extrasetup(self, name, func):
"""Execute exra setup for registered function, if needed
"""
pass
class revsetpredicate(_funcregistrarbase):
"""Decorator to register revset predicate
Usage::
revsetpredicate = registrar.revsetpredicate()
@revsetpredicate('mypredicate(arg1, arg2[, arg3])')
def mypredicatefunc(repo, subset, x):
'''Explanation of this revset predicate ....
'''
pass
The first string argument is used also in online help.
Optional argument 'safe' indicates whether a predicate is safe for
DoS attack (False by default).
'revsetpredicate' instance in example above can be used to
decorate multiple functions.
Decorated functions are registered automatically at loading
extension, if an instance named as 'revsetpredicate' is used for
decorating in extension.
Otherwise, explicit 'revset.loadpredicate()' is needed.
"""
_getname = _funcregistrarbase._parsefuncdecl
_docformat = "``%s``\n %s"
def _extrasetup(self, name, func, safe=False):
func._safe = safe
class filesetpredicate(_funcregistrarbase):
"""Decorator to register fileset predicate
Usage::
filesetpredicate = registrar.filesetpredicate()
@filesetpredicate('mypredicate()')
def mypredicatefunc(mctx, x):
'''Explanation of this fileset predicate ....
'''
pass
The first string argument is used also in online help.
Optional argument 'callstatus' indicates whether a predicate
implies 'matchctx.status()' at runtime or not (False, by
default).
Optional argument 'callexisting' indicates whether a predicate
implies 'matchctx.existing()' at runtime or not (False, by
default).
'filesetpredicate' instance in example above can be used to
decorate multiple functions.
Decorated functions are registered automatically at loading
extension, if an instance named as 'filesetpredicate' is used for
decorating in extension.
Otherwise, explicit 'fileset.loadpredicate()' is needed.
"""
_getname = _funcregistrarbase._parsefuncdecl
_docformat = "``%s``\n %s"
def _extrasetup(self, name, func, callstatus=False, callexisting=False):
func._callstatus = callstatus
func._callexisting = callexisting
class _templateregistrarbase(_funcregistrarbase):
"""Base of decorator to register functions as template specific one
"""
_docformat = ":%s: %s"
class templatekeyword(_templateregistrarbase):
"""Decorator to register template keyword
Usage::
templaetkeyword = registrar.templatekeyword()
@templatekeyword('mykeyword')
def mykeywordfunc(repo, ctx, templ, cache, revcache, **args):
'''Explanation of this template keyword ....
'''
pass
The first string argument is used also in online help.
'templatekeyword' instance in example above can be used to
decorate multiple functions.
Decorated functions are registered automatically at loading
extension, if an instance named as 'templatekeyword' is used for
decorating in extension.
Otherwise, explicit 'templatekw.loadkeyword()' is needed.
"""