Mercurial > hg
annotate mercurial/help.py @ 16379:5cbfbb838198
scmutil: use context instead of lookup
author | Matt Mackall <mpm@selenic.com> |
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date | Sun, 08 Apr 2012 12:38:23 -0500 |
parents | 684864d54903 |
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1 # help.py - help data for mercurial |
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2 # |
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3 # Copyright 2006 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from i18n import gettext, _ |
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9 import sys, os |
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10 import extensions, revset, fileset, templatekw, templatefilters, filemerge |
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11 import util |
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12 |
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13 def listexts(header, exts, indent=1): |
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14 '''return a text listing of the given extensions''' |
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15 if not exts: |
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16 return '' |
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17 maxlength = max(len(e) for e in exts) |
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18 result = '\n%s\n\n' % header |
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19 for name, desc in sorted(exts.iteritems()): |
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20 result += '%s%-*s %s\n' % (' ' * indent, maxlength + 2, |
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21 ':%s:' % name, desc) |
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22 return result |
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23 |
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24 def extshelp(): |
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25 doc = loaddoc('extensions')() |
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26 doc += listexts(_('enabled extensions:'), extensions.enabled()) |
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27 doc += listexts(_('disabled extensions:'), extensions.disabled()) |
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28 return doc |
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29 |
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30 def loaddoc(topic): |
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31 """Return a delayed loader for help/topic.txt.""" |
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33 def loader(): |
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34 if util.mainfrozen(): |
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35 module = sys.executable |
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36 else: |
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37 module = __file__ |
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38 base = os.path.dirname(module) |
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39 |
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40 for dir in ('.', '..'): |
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41 docdir = os.path.join(base, dir, 'help') |
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42 if os.path.isdir(docdir): |
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43 break |
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44 |
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45 path = os.path.join(docdir, topic + ".txt") |
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46 doc = gettext(util.readfile(path)) |
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47 for rewriter in helphooks.get(topic, []): |
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48 doc = rewriter(topic, doc) |
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49 return doc |
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50 |
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51 return loader |
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52 |
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53 helptable = sorted([ |
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54 (["config", "hgrc"], _("Configuration Files"), loaddoc('config')), |
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55 (["dates"], _("Date Formats"), loaddoc('dates')), |
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56 (["patterns"], _("File Name Patterns"), loaddoc('patterns')), |
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57 (['environment', 'env'], _('Environment Variables'), |
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58 loaddoc('environment')), |
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59 (['revs', 'revisions'], _('Specifying Single Revisions'), |
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60 loaddoc('revisions')), |
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61 (['mrevs', 'multirevs'], _('Specifying Multiple Revisions'), |
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62 loaddoc('multirevs')), |
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63 (['revset', 'revsets'], _("Specifying Revision Sets"), loaddoc('revsets')), |
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65 (['diffs'], _('Diff Formats'), loaddoc('diffs')), |
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66 (['merge-tools'], _('Merge Tools'), loaddoc('merge-tools')), |
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67 (['templating', 'templates'], _('Template Usage'), |
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68 loaddoc('templates')), |
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69 (['urls'], _('URL Paths'), loaddoc('urls')), |
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70 (["extensions"], _("Using additional features"), extshelp), |
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71 (["subrepo", "subrepos"], _("Subrepositories"), loaddoc('subrepos')), |
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72 (["hgweb"], _("Configuring hgweb"), loaddoc('hgweb')), |
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73 (["glossary"], _("Glossary"), loaddoc('glossary')), |
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74 (["hgignore", "ignore"], _("syntax for Mercurial ignore files"), |
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75 loaddoc('hgignore')), |
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77 ]) |
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78 |
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79 # Map topics to lists of callable taking the current topic help and |
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80 # returning the updated version |
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81 helphooks = {} |
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82 |
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83 def addtopichook(topic, rewriter): |
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84 helphooks.setdefault(topic, []).append(rewriter) |
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85 |
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86 def makeitemsdoc(topic, doc, marker, items): |
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87 """Extract docstring from the items key to function mapping, build a |
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88 .single documentation block and use it to overwrite the marker in doc |
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89 """ |
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90 entries = [] |
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91 for name in sorted(items): |
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92 text = (items[name].__doc__ or '').rstrip() |
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93 if not text: |
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94 continue |
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95 text = gettext(text) |
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96 lines = text.splitlines() |
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97 doclines = [(lines[0])] |
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98 for l in lines[1:]: |
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99 # Stop once we find some Python doctest |
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100 if l.strip().startswith('>>>'): |
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101 break |
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102 doclines.append(' ' + l.strip()) |
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103 entries.append('\n'.join(doclines)) |
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104 entries = '\n\n'.join(entries) |
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105 return doc.replace(marker, entries) |
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106 |
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107 def addtopicsymbols(topic, marker, symbols): |
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108 def add(topic, doc): |
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109 return makeitemsdoc(topic, doc, marker, symbols) |
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110 addtopichook(topic, add) |
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111 |
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113 addtopicsymbols('merge-tools', '.. internaltoolsmarker', filemerge.internals) |
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114 addtopicsymbols('revsets', '.. predicatesmarker', revset.symbols) |
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115 addtopicsymbols('templates', '.. keywordsmarker', templatekw.keywords) |
1f46be4689ed
help: consolidate topic hooks in help.py
Matt Mackall <mpm@selenic.com>
parents:
14317
diff
changeset
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116 addtopicsymbols('templates', '.. filtersmarker', templatefilters.filters) |