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comparison mercurial/help.py @ 14318:1f46be4689ed

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help: consolidate topic hooks in help.py This removes loops like cmdutil->revset->help->extensions->cmdutil and simplifies the code.
author Matt Mackall <mpm@selenic.com>
date Fri, 13 May 2011 12:57:27 -0500
parents 660b0c1b6196
children 6ab8b17adc03
comparison
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14317:660b0c1b6196 14318:1f46be4689ed
5 # This software may be used and distributed according to the terms of the 5 # This software may be used and distributed according to the terms of the
6 # GNU General Public License version 2 or any later version. 6 # GNU General Public License version 2 or any later version.
7 7
8 from i18n import gettext, _ 8 from i18n import gettext, _
9 import sys, os 9 import sys, os
10 import extensions 10 import extensions, revset, templatekw, templatefilters
11 import util 11 import util
12 12
13 def listexts(header, exts, indent=1): 13 def listexts(header, exts, indent=1):
14 '''return a text listing of the given extensions''' 14 '''return a text listing of the given extensions'''
15 if not exts: 15 if not exts:
74 loaddoc('hgignore')), 74 loaddoc('hgignore')),
75 ]) 75 ])
76 76
77 # Map topics to lists of callable taking the current topic help and 77 # Map topics to lists of callable taking the current topic help and
78 # returning the updated version 78 # returning the updated version
79 helphooks = { 79 helphooks = {}
80 }
81 80
82 def addtopichook(topic, rewriter): 81 def addtopichook(topic, rewriter):
83 helphooks.setdefault(topic, []).append(rewriter) 82 helphooks.setdefault(topic, []).append(rewriter)
84 83
85 def makeitemsdoc(topic, doc, marker, items): 84 def makeitemsdoc(topic, doc, marker, items):
95 lines = text.splitlines() 94 lines = text.splitlines()
96 lines[1:] = [(' ' + l.strip()) for l in lines[1:]] 95 lines[1:] = [(' ' + l.strip()) for l in lines[1:]]
97 entries.append('\n'.join(lines)) 96 entries.append('\n'.join(lines))
98 entries = '\n\n'.join(entries) 97 entries = '\n\n'.join(entries)
99 return doc.replace(marker, entries) 98 return doc.replace(marker, entries)
99
100 def addtopicsymbols(topic, marker, symbols):
101 def add(topic, doc):
102 return makeitemsdoc(topic, doc, marker, symbols)
103 addtopichook(topic, add)
104
105 addtopicsymbols('revsets', '.. predicatesmarker', revset.symbols)
106 addtopicsymbols('templates', '.. keywordsmarker', templatekw.keywords)
107 addtopicsymbols('templates', '.. filtersmarker', templatefilters.filters)