Mercurial > hg
annotate mercurial/help.py @ 20487:f715cc0b5107
pull: make pulled subset a propertycache of the pull object
The computation of the subset is simple operation using two useful pull
information (1) the set of common changeset before the pull (2) the set of
pulled changeset. We move this data into the `pulloperation` object since some
phase will need them. And we turn the pulled subset computation behind a
property case as multiple pull phase will need it.
author | Pierre-Yves David <pierre-yves.david@logilab.fr> |
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date | Fri, 31 Jan 2014 01:34:00 -0800 |
parents | 1e5b38a919dd |
children | 02c303f64917 |
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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 itertools, sys, os |
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10 import error |
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11 import extensions, revset, fileset, templatekw, templatefilters, filemerge |
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12 import encoding, util, minirst |
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13 import cmdutil |
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14 |
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15 def listexts(header, exts, indent=1): |
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16 '''return a text listing of the given extensions''' |
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17 rst = [] |
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18 if exts: |
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19 rst.append('\n%s\n\n' % header) |
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20 for name, desc in sorted(exts.iteritems()): |
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21 rst.append('%s:%s: %s\n' % (' ' * indent, name, desc)) |
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22 return rst |
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23 |
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24 def extshelp(): |
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25 rst = loaddoc('extensions')().splitlines(True) |
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26 rst.extend(listexts(_('enabled extensions:'), extensions.enabled())) |
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27 rst.extend(listexts(_('disabled extensions:'), extensions.disabled())) |
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28 doc = ''.join(rst) |
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29 return doc |
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30 |
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31 def optrst(options, verbose): |
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32 data = [] |
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33 multioccur = False |
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34 for option in options: |
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35 if len(option) == 5: |
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36 shortopt, longopt, default, desc, optlabel = option |
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37 else: |
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38 shortopt, longopt, default, desc = option |
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39 optlabel = _("VALUE") # default label |
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40 |
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41 if _("DEPRECATED") in desc and not verbose: |
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42 continue |
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43 |
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44 so = '' |
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45 if shortopt: |
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46 so = '-' + shortopt |
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47 lo = '--' + longopt |
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48 if default: |
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49 desc += _(" (default: %s)") % default |
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50 |
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51 if isinstance(default, list): |
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52 lo += " %s [+]" % optlabel |
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53 multioccur = True |
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54 elif (default is not None) and not isinstance(default, bool): |
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55 lo += " %s" % optlabel |
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56 |
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57 data.append((so, lo, desc)) |
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58 |
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59 rst = minirst.maketable(data, 1) |
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60 |
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61 if multioccur: |
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62 rst.append(_("\n[+] marked option can be specified multiple times\n")) |
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63 |
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64 return ''.join(rst) |
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65 |
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66 def indicateomitted(rst, omitted, notomitted=None): |
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67 rst.append('\n\n.. container:: omitted\n\n %s\n\n' % omitted) |
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68 if notomitted: |
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69 rst.append('\n\n.. container:: notomitted\n\n %s\n\n' % notomitted) |
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70 |
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71 def topicmatch(kw): |
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72 """Return help topics matching kw. |
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73 |
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74 Returns {'section': [(name, summary), ...], ...} where section is |
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75 one of topics, commands, extensions, or extensioncommands. |
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76 """ |
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77 kw = encoding.lower(kw) |
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78 def lowercontains(container): |
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79 return kw in encoding.lower(container) # translated in helptable |
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80 results = {'topics': [], |
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81 'commands': [], |
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82 'extensions': [], |
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83 'extensioncommands': [], |
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84 } |
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85 for names, header, doc in helptable: |
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86 if (sum(map(lowercontains, names)) |
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87 or lowercontains(header) |
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88 or lowercontains(doc())): |
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89 results['topics'].append((names[0], header)) |
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90 import commands # avoid cycle |
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91 for cmd, entry in commands.table.iteritems(): |
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92 if cmd.startswith('debug'): |
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93 continue |
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94 if len(entry) == 3: |
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95 summary = entry[2] |
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96 else: |
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97 summary = '' |
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98 # translate docs *before* searching there |
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99 docs = _(getattr(entry[0], '__doc__', None)) or '' |
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100 if kw in cmd or lowercontains(summary) or lowercontains(docs): |
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101 doclines = docs.splitlines() |
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102 if doclines: |
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103 summary = doclines[0] |
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104 cmdname = cmd.split('|')[0].lstrip('^') |
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105 results['commands'].append((cmdname, summary)) |
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106 for name, docs in itertools.chain( |
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107 extensions.enabled(False).iteritems(), |
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108 extensions.disabled().iteritems()): |
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109 # extensions.load ignores the UI argument |
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110 mod = extensions.load(None, name, '') |
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111 name = name.split('.')[-1] |
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112 if lowercontains(name) or lowercontains(docs): |
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113 # extension docs are already translated |
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114 results['extensions'].append((name, docs.splitlines()[0])) |
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115 for cmd, entry in getattr(mod, 'cmdtable', {}).iteritems(): |
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116 if kw in cmd or (len(entry) > 2 and lowercontains(entry[2])): |
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117 cmdname = cmd.split('|')[0].lstrip('^') |
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118 if entry[0].__doc__: |
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119 cmddoc = gettext(entry[0].__doc__).splitlines()[0] |
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120 else: |
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121 cmddoc = _('(no help text available)') |
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122 results['extensioncommands'].append((cmdname, cmddoc)) |
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123 return results |
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124 |
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125 def loaddoc(topic): |
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126 """Return a delayed loader for help/topic.txt.""" |
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128 def loader(): |
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129 if util.mainfrozen(): |
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130 module = sys.executable |
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131 else: |
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132 module = __file__ |
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133 base = os.path.dirname(module) |
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134 |
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135 for dir in ('.', '..'): |
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136 docdir = os.path.join(base, dir, 'help') |
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137 if os.path.isdir(docdir): |
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138 break |
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139 |
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140 path = os.path.join(docdir, topic + ".txt") |
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141 doc = gettext(util.readfile(path)) |
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142 for rewriter in helphooks.get(topic, []): |
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143 doc = rewriter(topic, doc) |
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144 return doc |
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145 |
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146 return loader |
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147 |
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148 helptable = sorted([ |
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149 (["config", "hgrc"], _("Configuration Files"), loaddoc('config')), |
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150 (["dates"], _("Date Formats"), loaddoc('dates')), |
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151 (["patterns"], _("File Name Patterns"), loaddoc('patterns')), |
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152 (['environment', 'env'], _('Environment Variables'), |
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153 loaddoc('environment')), |
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154 (['revisions', 'revs'], _('Specifying Single Revisions'), |
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155 loaddoc('revisions')), |
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156 (['multirevs', 'mrevs'], _('Specifying Multiple Revisions'), |
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157 loaddoc('multirevs')), |
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158 (['revsets', 'revset'], _("Specifying Revision Sets"), loaddoc('revsets')), |
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159 (['filesets', 'fileset'], _("Specifying File Sets"), loaddoc('filesets')), |
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160 (['diffs'], _('Diff Formats'), loaddoc('diffs')), |
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161 (['merge-tools', 'mergetools'], _('Merge Tools'), loaddoc('merge-tools')), |
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162 (['templating', 'templates', 'template', 'style'], _('Template Usage'), |
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163 loaddoc('templates')), |
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164 (['urls'], _('URL Paths'), loaddoc('urls')), |
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165 (["extensions"], _("Using Additional Features"), extshelp), |
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166 (["subrepos", "subrepo"], _("Subrepositories"), loaddoc('subrepos')), |
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167 (["hgweb"], _("Configuring hgweb"), loaddoc('hgweb')), |
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168 (["glossary"], _("Glossary"), loaddoc('glossary')), |
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169 (["hgignore", "ignore"], _("Syntax for Mercurial Ignore Files"), |
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170 loaddoc('hgignore')), |
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171 (["phases"], _("Working with Phases"), loaddoc('phases')), |
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172 ]) |
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173 |
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174 # Map topics to lists of callable taking the current topic help and |
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175 # returning the updated version |
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176 helphooks = {} |
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177 |
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178 def addtopichook(topic, rewriter): |
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179 helphooks.setdefault(topic, []).append(rewriter) |
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180 |
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181 def makeitemsdoc(topic, doc, marker, items): |
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182 """Extract docstring from the items key to function mapping, build a |
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183 .single documentation block and use it to overwrite the marker in doc |
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184 """ |
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185 entries = [] |
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186 for name in sorted(items): |
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187 text = (items[name].__doc__ or '').rstrip() |
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188 if not text: |
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189 continue |
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190 text = gettext(text) |
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191 lines = text.splitlines() |
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192 doclines = [(lines[0])] |
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193 for l in lines[1:]: |
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194 # Stop once we find some Python doctest |
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195 if l.strip().startswith('>>>'): |
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196 break |
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197 doclines.append(' ' + l.strip()) |
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198 entries.append('\n'.join(doclines)) |
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199 entries = '\n\n'.join(entries) |
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200 return doc.replace(marker, entries) |
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201 |
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202 def addtopicsymbols(topic, marker, symbols): |
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203 def add(topic, doc): |
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204 return makeitemsdoc(topic, doc, marker, symbols) |
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205 addtopichook(topic, add) |
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206 |
14686 | 207 addtopicsymbols('filesets', '.. predicatesmarker', fileset.symbols) |
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208 addtopicsymbols('merge-tools', '.. internaltoolsmarker', filemerge.internals) |
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209 addtopicsymbols('revsets', '.. predicatesmarker', revset.symbols) |
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210 addtopicsymbols('templates', '.. keywordsmarker', templatekw.dockeywords) |
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211 addtopicsymbols('templates', '.. filtersmarker', templatefilters.filters) |
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212 |
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213 def help_(ui, name, unknowncmd=False, full=True, **opts): |
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214 ''' |
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215 Generate the help for 'name' as unformatted restructured text. If |
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216 'name' is None, describe the commands available. |
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217 ''' |
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218 |
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219 import commands # avoid cycle |
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220 |
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221 def helpcmd(name): |
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222 try: |
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223 aliases, entry = cmdutil.findcmd(name, commands.table, |
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224 strict=unknowncmd) |
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225 except error.AmbiguousCommand, inst: |
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226 # py3k fix: except vars can't be used outside the scope of the |
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227 # except block, nor can be used inside a lambda. python issue4617 |
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228 prefix = inst.args[0] |
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229 select = lambda c: c.lstrip('^').startswith(prefix) |
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230 rst = helplist(select) |
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231 return rst |
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232 |
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233 rst = [] |
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234 |
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235 # check if it's an invalid alias and display its error if it is |
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236 if getattr(entry[0], 'badalias', False): |
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237 if not unknowncmd: |
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238 ui.pushbuffer() |
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239 entry[0](ui) |
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240 rst.append(ui.popbuffer()) |
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241 return rst |
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242 |
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243 # synopsis |
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244 if len(entry) > 2: |
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245 if entry[2].startswith('hg'): |
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246 rst.append("%s\n" % entry[2]) |
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247 else: |
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248 rst.append('hg %s %s\n' % (aliases[0], entry[2])) |
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249 else: |
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250 rst.append('hg %s\n' % aliases[0]) |
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251 # aliases |
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252 if full and not ui.quiet and len(aliases) > 1: |
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253 rst.append(_("\naliases: %s\n") % ', '.join(aliases[1:])) |
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254 rst.append('\n') |
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255 |
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256 # description |
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257 doc = gettext(entry[0].__doc__) |
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258 if not doc: |
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259 doc = _("(no help text available)") |
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260 if util.safehasattr(entry[0], 'definition'): # aliased command |
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261 if entry[0].definition.startswith('!'): # shell alias |
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262 doc = _('shell alias for::\n\n %s') % entry[0].definition[1:] |
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263 else: |
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264 doc = _('alias for: hg %s\n\n%s') % (entry[0].definition, doc) |
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265 doc = doc.splitlines(True) |
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266 if ui.quiet or not full: |
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267 rst.append(doc[0]) |
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268 else: |
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269 rst.extend(doc) |
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270 rst.append('\n') |
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271 |
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272 # check if this command shadows a non-trivial (multi-line) |
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273 # extension help text |
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274 try: |
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275 mod = extensions.find(name) |
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276 doc = gettext(mod.__doc__) or '' |
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277 if '\n' in doc.strip(): |
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278 msg = _('use "hg help -e %s" to show help for ' |
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279 'the %s extension') % (name, name) |
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280 rst.append('\n%s\n' % msg) |
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281 except KeyError: |
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282 pass |
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283 |
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284 # options |
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285 if not ui.quiet and entry[1]: |
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286 rst.append('\n%s\n\n' % _("options:")) |
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287 rst.append(optrst(entry[1], ui.verbose)) |
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288 |
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289 if ui.verbose: |
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290 rst.append('\n%s\n\n' % _("global options:")) |
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291 rst.append(optrst(commands.globalopts, ui.verbose)) |
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292 |
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293 if not ui.verbose: |
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294 if not full: |
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295 rst.append(_('\nuse "hg help %s" to show the full help text\n') |
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296 % name) |
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297 elif not ui.quiet: |
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298 omitted = _('use "hg -v help %s" to show more complete' |
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299 ' help and the global options') % name |
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300 notomitted = _('use "hg -v help %s" to show' |
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301 ' the global options') % name |
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302 indicateomitted(rst, omitted, notomitted) |
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303 |
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304 return rst |
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305 |
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306 |
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307 def helplist(select=None): |
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308 # list of commands |
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309 if name == "shortlist": |
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310 header = _('basic commands:\n\n') |
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311 else: |
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312 header = _('list of commands:\n\n') |
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313 |
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314 h = {} |
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315 cmds = {} |
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316 for c, e in commands.table.iteritems(): |
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317 f = c.split("|", 1)[0] |
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318 if select and not select(f): |
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319 continue |
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320 if (not select and name != 'shortlist' and |
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321 e[0].__module__ != commands.__name__): |
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322 continue |
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323 if name == "shortlist" and not f.startswith("^"): |
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324 continue |
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325 f = f.lstrip("^") |
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326 if not ui.debugflag and f.startswith("debug"): |
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327 continue |
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328 doc = e[0].__doc__ |
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329 if doc and 'DEPRECATED' in doc and not ui.verbose: |
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330 continue |
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331 doc = gettext(doc) |
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332 if not doc: |
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333 doc = _("(no help text available)") |
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334 h[f] = doc.splitlines()[0].rstrip() |
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335 cmds[f] = c.lstrip("^") |
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336 |
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337 rst = [] |
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338 if not h: |
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339 if not ui.quiet: |
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340 rst.append(_('no commands defined\n')) |
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341 return rst |
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342 |
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343 if not ui.quiet: |
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344 rst.append(header) |
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345 fns = sorted(h) |
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346 for f in fns: |
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347 if ui.verbose: |
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348 commacmds = cmds[f].replace("|",", ") |
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349 rst.append(" :%s: %s\n" % (commacmds, h[f])) |
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350 else: |
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351 rst.append(' :%s: %s\n' % (f, h[f])) |
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352 |
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353 if not name: |
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354 exts = listexts(_('enabled extensions:'), extensions.enabled()) |
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355 if exts: |
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356 rst.append('\n') |
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357 rst.extend(exts) |
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358 |
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359 rst.append(_("\nadditional help topics:\n\n")) |
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360 topics = [] |
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361 for names, header, doc in helptable: |
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362 topics.append((names[0], header)) |
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363 for t, desc in topics: |
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364 rst.append(" :%s: %s\n" % (t, desc)) |
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365 |
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366 optlist = [] |
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367 if not ui.quiet: |
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368 if ui.verbose: |
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369 optlist.append((_("global options:"), commands.globalopts)) |
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370 if name == 'shortlist': |
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371 optlist.append((_('use "hg help" for the full list ' |
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372 'of commands'), ())) |
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373 else: |
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374 if name == 'shortlist': |
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375 msg = _('use "hg help" for the full list of commands ' |
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376 'or "hg -v" for details') |
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377 elif name and not full: |
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378 msg = _('use "hg help %s" to show the full help ' |
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379 'text') % name |
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380 else: |
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381 msg = _('use "hg -v help%s" to show builtin aliases and ' |
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382 'global options') % (name and " " + name or "") |
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383 optlist.append((msg, ())) |
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384 |
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385 if optlist: |
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386 for title, options in optlist: |
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387 rst.append('\n%s\n' % title) |
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388 if options: |
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389 rst.append('\n%s\n' % optrst(options, ui.verbose)) |
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390 return rst |
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391 |
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392 def helptopic(name): |
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393 for names, header, doc in helptable: |
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394 if name in names: |
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395 break |
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396 else: |
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397 raise error.UnknownCommand(name) |
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398 |
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399 rst = [minirst.section(header)] |
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400 |
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401 # description |
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402 if not doc: |
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403 rst.append(" %s\n" % _("(no help text available)")) |
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404 if util.safehasattr(doc, '__call__'): |
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405 rst += [" %s\n" % l for l in doc().splitlines()] |
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406 |
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407 if not ui.verbose: |
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408 omitted = (_('use "hg help -v %s" to show more complete help') % |
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409 name) |
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410 indicateomitted(rst, omitted) |
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411 |
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412 try: |
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413 cmdutil.findcmd(name, commands.table) |
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414 rst.append(_('\nuse "hg help -c %s" to see help for ' |
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415 'the %s command\n') % (name, name)) |
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416 except error.UnknownCommand: |
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417 pass |
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418 return rst |
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419 |
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420 def helpext(name): |
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421 try: |
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422 mod = extensions.find(name) |
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423 doc = gettext(mod.__doc__) or _('no help text available') |
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424 except KeyError: |
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425 mod = None |
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426 doc = extensions.disabledext(name) |
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427 if not doc: |
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428 raise error.UnknownCommand(name) |
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429 |
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430 if '\n' not in doc: |
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431 head, tail = doc, "" |
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432 else: |
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433 head, tail = doc.split('\n', 1) |
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434 rst = [_('%s extension - %s\n\n') % (name.split('.')[-1], head)] |
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435 if tail: |
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436 rst.extend(tail.splitlines(True)) |
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437 rst.append('\n') |
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438 |
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439 if not ui.verbose: |
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440 omitted = (_('use "hg help -v %s" to show more complete help') % |
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441 name) |
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442 indicateomitted(rst, omitted) |
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443 |
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444 if mod: |
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445 try: |
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446 ct = mod.cmdtable |
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447 except AttributeError: |
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448 ct = {} |
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449 modcmds = set([c.split('|', 1)[0] for c in ct]) |
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450 rst.extend(helplist(modcmds.__contains__)) |
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451 else: |
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452 rst.append(_('use "hg help extensions" for information on enabling ' |
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453 'extensions\n')) |
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454 return rst |
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455 |
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456 def helpextcmd(name): |
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457 cmd, ext, mod = extensions.disabledcmd(ui, name, |
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458 ui.configbool('ui', 'strict')) |
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459 doc = gettext(mod.__doc__).splitlines()[0] |
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460 |
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461 rst = listexts(_("'%s' is provided by the following " |
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462 "extension:") % cmd, {ext: doc}, indent=4) |
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463 rst.append('\n') |
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464 rst.append(_('use "hg help extensions" for information on enabling ' |
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465 'extensions\n')) |
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466 return rst |
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467 |
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468 |
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469 rst = [] |
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470 kw = opts.get('keyword') |
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471 if kw: |
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472 matches = topicmatch(kw) |
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473 for t, title in (('topics', _('Topics')), |
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474 ('commands', _('Commands')), |
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475 ('extensions', _('Extensions')), |
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476 ('extensioncommands', _('Extension Commands'))): |
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477 if matches[t]: |
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478 rst.append('%s:\n\n' % title) |
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479 rst.extend(minirst.maketable(sorted(matches[t]), 1)) |
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480 rst.append('\n') |
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481 elif name and name != 'shortlist': |
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482 i = None |
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483 if unknowncmd: |
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484 queries = (helpextcmd,) |
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485 elif opts.get('extension'): |
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486 queries = (helpext,) |
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487 elif opts.get('command'): |
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488 queries = (helpcmd,) |
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489 else: |
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490 queries = (helptopic, helpcmd, helpext, helpextcmd) |
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491 for f in queries: |
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492 try: |
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493 rst = f(name) |
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494 i = None |
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495 break |
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496 except error.UnknownCommand, inst: |
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497 i = inst |
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498 if i: |
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499 raise i |
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500 else: |
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501 # program name |
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502 if not ui.quiet: |
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503 rst = [_("Mercurial Distributed SCM\n"), '\n'] |
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504 rst.extend(helplist()) |
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505 |
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506 return ''.join(rst) |