Mercurial > hg
annotate doc/gendoc.py @ 46942:b5e7cdb93abc
relink: use `get_unique_pull_path`
The code does not support multiple destination and will probably never do so.
So lets use the dedicated API for this case.
Differential Revision: https://phab.mercurial-scm.org/D10409
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 14 Apr 2021 12:29:44 +0200 |
parents | 85ec89c47a04 |
children | 6000f5b25c9b 1b6e381521c5 |
rev | line source |
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1 #!/usr/bin/env python3 |
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2 """usage: %s DOC ... |
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3 |
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4 where DOC is the name of a document |
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5 """ |
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6 |
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7 from __future__ import absolute_import |
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8 |
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9 import os |
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10 import sys |
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11 import textwrap |
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12 |
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13 try: |
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14 import msvcrt |
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15 |
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16 msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) |
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17 msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY) |
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18 except ImportError: |
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19 pass |
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20 |
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21 # This script is executed during installs and may not have C extensions |
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22 # available. Relax C module requirements. |
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23 os.environ['HGMODULEPOLICY'] = 'allow' |
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24 # import from the live mercurial repo |
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25 sys.path.insert(0, "..") |
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26 from mercurial import demandimport |
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27 |
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28 demandimport.enable() |
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29 |
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30 from mercurial import ( |
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31 commands, |
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32 encoding, |
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33 extensions, |
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34 fancyopts, |
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35 help, |
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36 minirst, |
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37 pycompat, |
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38 ui as uimod, |
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39 ) |
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40 from mercurial.i18n import ( |
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41 gettext, |
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42 _, |
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43 ) |
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44 from mercurial.utils import stringutil |
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45 |
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46 table = commands.table |
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47 globalopts = commands.globalopts |
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48 helptable = help.helptable |
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49 loaddoc = help.loaddoc |
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50 |
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51 |
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52 def get_desc(docstr): |
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53 if not docstr: |
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54 return b"", b"" |
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55 # sanitize |
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56 docstr = docstr.strip(b"\n") |
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57 docstr = docstr.rstrip() |
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58 shortdesc = docstr.splitlines()[0].strip() |
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59 |
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60 i = docstr.find(b"\n") |
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61 if i != -1: |
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62 desc = docstr[i + 2 :] |
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63 else: |
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64 desc = shortdesc |
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65 |
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66 desc = textwrap.dedent(desc.decode('latin1')).encode('latin1') |
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67 |
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68 return (shortdesc, desc) |
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69 |
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70 |
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71 def get_opts(opts): |
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72 for opt in opts: |
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73 if len(opt) == 5: |
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74 shortopt, longopt, default, desc, optlabel = opt |
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75 else: |
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76 shortopt, longopt, default, desc = opt |
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77 optlabel = _(b"VALUE") |
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78 allopts = [] |
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79 if shortopt: |
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80 allopts.append(b"-%s" % shortopt) |
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81 if longopt: |
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82 allopts.append(b"--%s" % longopt) |
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83 if isinstance(default, list): |
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84 allopts[-1] += b" <%s[+]>" % optlabel |
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85 elif (default is not None) and not isinstance(default, bool): |
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86 allopts[-1] += b" <%s>" % optlabel |
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87 if b'\n' in desc: |
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88 # only remove line breaks and indentation |
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89 desc = b' '.join(l.lstrip() for l in desc.split(b'\n')) |
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90 if isinstance(default, fancyopts.customopt): |
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91 default = default.getdefaultvalue() |
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92 if default: |
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93 default = stringutil.forcebytestr(default) |
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94 desc += _(b" (default: %s)") % default |
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95 yield (b", ".join(allopts), desc) |
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96 |
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97 |
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99 d = {} |
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101 cmds = cmd.lstrip(b"^").split(b"|") |
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102 |
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103 d[b'cmd'] = cmds[0] |
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104 d[b'aliases'] = cmd.split(b"|")[1:] |
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105 d[b'desc'] = get_desc(gettext(pycompat.getdoc(attr[0]))) |
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106 d[b'opts'] = list(get_opts(attr[1])) |
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107 |
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108 s = b'hg ' + cmds[0] |
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109 if len(attr) > 2: |
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110 if not attr[2].startswith(b'hg'): |
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111 s += b' ' + attr[2] |
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112 else: |
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113 s = attr[2] |
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114 d[b'synopsis'] = s.strip() |
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115 |
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116 return d |
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117 |
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118 |
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119 def showdoc(ui): |
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120 # print options |
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121 ui.write(minirst.section(_(b"Options"))) |
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122 multioccur = False |
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123 for optstr, desc in get_opts(globalopts): |
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124 ui.write(b"%s\n %s\n\n" % (optstr, desc)) |
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125 if optstr.endswith(b"[+]>"): |
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126 multioccur = True |
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127 if multioccur: |
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128 ui.write(_(b"\n[+] marked option can be specified multiple times\n")) |
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129 ui.write(b"\n") |
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130 |
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131 # print cmds |
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132 ui.write(minirst.section(_(b"Commands"))) |
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133 commandprinter(ui, table, minirst.subsection, minirst.subsubsection) |
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135 # print help topics |
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136 # The config help topic is included in the hgrc.5 man page. |
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137 helpprinter(ui, helptable, minirst.section, exclude=[b'config']) |
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139 ui.write(minirst.section(_(b"Extensions"))) |
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140 ui.write( |
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141 _( |
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142 b"This section contains help for extensions that are " |
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143 b"distributed together with Mercurial. Help for other " |
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144 b"extensions is available in the help system." |
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145 ) |
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146 ) |
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147 ui.write( |
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148 ( |
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149 b"\n\n" |
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150 b".. contents::\n" |
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151 b" :class: htmlonly\n" |
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152 b" :local:\n" |
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153 b" :depth: 1\n\n" |
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154 ) |
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155 ) |
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156 |
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157 for extensionname in sorted(allextensionnames()): |
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158 mod = extensions.load(ui, extensionname, None) |
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159 ui.write(minirst.subsection(extensionname)) |
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160 ui.write(b"%s\n\n" % gettext(pycompat.getdoc(mod))) |
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161 cmdtable = getattr(mod, 'cmdtable', None) |
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162 if cmdtable: |
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163 ui.write(minirst.subsubsection(_(b'Commands'))) |
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164 commandprinter( |
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165 ui, |
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166 cmdtable, |
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167 minirst.subsubsubsection, |
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168 minirst.subsubsubsubsection, |
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169 ) |
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170 |
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171 |
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172 def showtopic(ui, topic): |
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173 extrahelptable = [ |
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174 ([b"common"], b'', loaddoc(b'common'), help.TOPIC_CATEGORY_MISC), |
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175 ([b"hg.1"], b'', loaddoc(b'hg.1'), help.TOPIC_CATEGORY_CONFIG), |
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176 ([b"hg-ssh.8"], b'', loaddoc(b'hg-ssh.8'), help.TOPIC_CATEGORY_CONFIG), |
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177 ( |
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178 [b"hgignore.5"], |
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179 b'', |
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180 loaddoc(b'hgignore.5'), |
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181 help.TOPIC_CATEGORY_CONFIG, |
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182 ), |
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183 ([b"hgrc.5"], b'', loaddoc(b'hgrc.5'), help.TOPIC_CATEGORY_CONFIG), |
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184 ( |
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185 [b"hgignore.5.gendoc"], |
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186 b'', |
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187 loaddoc(b'hgignore'), |
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188 help.TOPIC_CATEGORY_CONFIG, |
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189 ), |
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190 ( |
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191 [b"hgrc.5.gendoc"], |
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192 b'', |
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193 loaddoc(b'config'), |
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194 help.TOPIC_CATEGORY_CONFIG, |
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195 ), |
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196 ] |
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197 helpprinter(ui, helptable + extrahelptable, None, include=[topic]) |
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198 |
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199 |
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200 def helpprinter(ui, helptable, sectionfunc, include=[], exclude=[]): |
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201 for h in helptable: |
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202 names, sec, doc = h[0:3] |
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203 if exclude and names[0] in exclude: |
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204 continue |
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205 if include and names[0] not in include: |
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206 continue |
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207 for name in names: |
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208 ui.write(b".. _%s:\n" % name) |
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209 ui.write(b"\n") |
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210 if sectionfunc: |
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211 ui.write(sectionfunc(sec)) |
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212 if callable(doc): |
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213 doc = doc(ui) |
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214 ui.write(doc) |
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215 ui.write(b"\n") |
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216 |
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217 |
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218 def commandprinter(ui, cmdtable, sectionfunc, subsectionfunc): |
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219 """Render restructuredtext describing a list of commands and their |
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220 documentations, grouped by command category. |
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221 |
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222 Args: |
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223 ui: UI object to write the output to |
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224 cmdtable: a dict that maps a string of the command name plus its aliases |
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225 (separated with pipes) to a 3-tuple of (the command's function, a list |
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226 of its option descriptions, and a string summarizing available |
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227 options). Example, with aliases added for demonstration purposes: |
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228 |
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229 'phase|alias1|alias2': ( |
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230 <function phase at 0x7f0816b05e60>, |
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231 [ ('p', 'public', False, 'set changeset phase to public'), |
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232 ..., |
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233 ('r', 'rev', [], 'target revision', 'REV')], |
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234 '[-p|-d|-s] [-f] [-r] [REV...]' |
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235 ) |
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236 sectionfunc: minirst function to format command category headers |
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237 subsectionfunc: minirst function to format command headers |
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238 """ |
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239 h = {} |
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241 f = c.split(b"|")[0] |
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242 f = f.lstrip(b"^") |
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243 h[f] = c |
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244 cmds = h.keys() |
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245 |
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246 def helpcategory(cmd): |
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247 """Given a canonical command name from `cmds` (above), retrieve its |
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248 help category. If helpcategory is None, default to CATEGORY_NONE. |
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249 """ |
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250 fullname = h[cmd] |
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251 details = cmdtable[fullname] |
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252 helpcategory = details[0].helpcategory |
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253 return helpcategory or help.registrar.command.CATEGORY_NONE |
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254 |
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255 cmdsbycategory = {category: [] for category in help.CATEGORY_ORDER} |
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256 for cmd in cmds: |
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257 # If a command category wasn't registered, the command won't get |
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258 # rendered below, so we raise an AssertionError. |
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259 if helpcategory(cmd) not in cmdsbycategory: |
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260 raise AssertionError( |
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261 "The following command did not register its (category) in " |
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262 "help.CATEGORY_ORDER: %s (%s)" % (cmd, helpcategory(cmd)) |
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263 ) |
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264 cmdsbycategory[helpcategory(cmd)].append(cmd) |
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265 |
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266 # Print the help for each command. We present the commands grouped by |
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267 # category, and we use help.CATEGORY_ORDER as a guide for a helpful order |
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268 # in which to present the categories. |
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269 for category in help.CATEGORY_ORDER: |
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270 categorycmds = cmdsbycategory[category] |
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271 if not categorycmds: |
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272 # Skip empty categories |
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273 continue |
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274 # Print a section header for the category. |
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275 # For now, the category header is at the same level as the headers for |
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276 # the commands in the category; this is fixed in the next commit. |
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277 ui.write(sectionfunc(help.CATEGORY_NAMES[category])) |
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278 # Print each command in the category |
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279 for f in sorted(categorycmds): |
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280 if f.startswith(b"debug"): |
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281 continue |
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282 d = get_cmd(h[f], cmdtable) |
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283 ui.write(subsectionfunc(d[b'cmd'])) |
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284 # short description |
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285 ui.write(d[b'desc'][0]) |
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286 # synopsis |
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287 ui.write(b"::\n\n") |
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288 synopsislines = d[b'synopsis'].splitlines() |
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289 for line in synopsislines: |
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290 # some commands (such as rebase) have a multi-line |
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291 # synopsis |
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292 ui.write(b" %s\n" % line) |
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293 ui.write(b'\n') |
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294 # description |
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295 ui.write(b"%s\n\n" % d[b'desc'][1]) |
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296 # options |
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297 opt_output = list(d[b'opts']) |
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298 if opt_output: |
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299 opts_len = max([len(line[0]) for line in opt_output]) |
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300 ui.write(_(b"Options:\n\n")) |
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301 multioccur = False |
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302 for optstr, desc in opt_output: |
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303 if desc: |
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304 s = b"%-*s %s" % (opts_len, optstr, desc) |
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305 else: |
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306 s = optstr |
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307 ui.write(b"%s\n" % s) |
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308 if optstr.endswith(b"[+]>"): |
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309 multioccur = True |
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310 if multioccur: |
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311 ui.write( |
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312 _( |
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313 b"\n[+] marked option can be specified" |
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314 b" multiple times\n" |
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315 ) |
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316 ) |
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317 ui.write(b"\n") |
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318 # aliases |
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319 if d[b'aliases']: |
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320 # Note the empty comment, this is required to separate this |
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321 # (which should be a blockquote) from any preceding things (such |
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322 # as a definition list). |
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323 ui.write( |
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324 _(b"..\n\n aliases: %s\n\n") % b" ".join(d[b'aliases']) |
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325 ) |
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326 |
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327 |
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328 def allextensionnames(): |
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329 return set(extensions.enabled().keys()) | set(extensions.disabled().keys()) |
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330 |
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331 |
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332 if __name__ == "__main__": |
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333 doc = b'hg.1.gendoc' |
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334 if len(sys.argv) > 1: |
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335 doc = encoding.strtolocal(sys.argv[1]) |
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336 |
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337 ui = uimod.ui.load() |
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338 # Trigger extensions to load. This is disabled by default because it uses |
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339 # the current user's configuration, which is often not what is wanted. |
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340 if encoding.environ.get(b'GENDOC_LOAD_CONFIGURED_EXTENSIONS', b'0') != b'0': |
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341 extensions.loadall(ui) |
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342 |
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343 if doc == b'hg.1.gendoc': |
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344 showdoc(ui) |
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345 else: |
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changeset
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346 showtopic(ui, encoding.strtolocal(sys.argv[1])) |