Mercurial > hg
annotate doc/gendoc.py @ 42628:eb27d9eee2cc
py3: fix test-setdiscovery.t on Python 3 by conditionalizing two lines
I'm not clear why this behaves very slightly differently on Python 3,
but I'm also not concerned about it.
Differential Revision: https://phab.mercurial-scm.org/D6658
author | Augie Fackler <augie@google.com> |
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date | Thu, 18 Jul 2019 14:23:21 -0400 |
parents | a42cc325b682 |
children | 2372284d9457 |
rev | line source |
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1 #!/usr/bin/env python |
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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 msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) |
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16 msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY) |
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17 except ImportError: |
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18 pass |
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19 |
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20 # This script is executed during installs and may not have C extensions |
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21 # available. Relax C module requirements. |
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22 os.environ[r'HGMODULEPOLICY'] = r'allow' |
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23 # import from the live mercurial repo |
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24 sys.path.insert(0, r"..") |
5209 | 25 from mercurial import demandimport; demandimport.enable() |
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26 # Load util so that the locale path is set by i18n.setdatapath() before |
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27 # calling _(). |
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28 from mercurial import util |
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29 util.datapath |
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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 help, |
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35 minirst, |
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36 pycompat, |
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37 ui as uimod, |
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38 ) |
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39 from mercurial.i18n import ( |
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40 gettext, |
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41 _, |
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42 ) |
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43 |
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44 table = commands.table |
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45 globalopts = commands.globalopts |
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46 helptable = help.helptable |
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47 loaddoc = help.loaddoc |
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48 |
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49 def get_desc(docstr): |
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50 if not docstr: |
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51 return b"", b"" |
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52 # sanitize |
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53 docstr = docstr.strip(b"\n") |
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54 docstr = docstr.rstrip() |
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55 shortdesc = docstr.splitlines()[0].strip() |
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56 |
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57 i = docstr.find(b"\n") |
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58 if i != -1: |
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59 desc = docstr[i + 2:] |
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60 else: |
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61 desc = shortdesc |
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62 |
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63 desc = textwrap.dedent(desc.decode('latin1')).encode('latin1') |
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64 |
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65 return (shortdesc, desc) |
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66 |
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67 def get_opts(opts): |
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68 for opt in opts: |
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69 if len(opt) == 5: |
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70 shortopt, longopt, default, desc, optlabel = opt |
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71 else: |
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72 shortopt, longopt, default, desc = opt |
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73 optlabel = _(b"VALUE") |
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74 allopts = [] |
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75 if shortopt: |
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76 allopts.append(b"-%s" % shortopt) |
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77 if longopt: |
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78 allopts.append(b"--%s" % longopt) |
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79 if isinstance(default, list): |
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80 allopts[-1] += b" <%s[+]>" % optlabel |
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81 elif (default is not None) and not isinstance(default, bool): |
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82 allopts[-1] += b" <%s>" % optlabel |
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83 if b'\n' in desc: |
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84 # only remove line breaks and indentation |
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85 desc = b' '.join(l.lstrip() for l in desc.split(b'\n')) |
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86 desc += default and _(b" (default: %s)") % bytes(default) or b"" |
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87 yield (b", ".join(allopts), desc) |
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88 |
12756 | 89 def get_cmd(cmd, cmdtable): |
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90 d = {} |
12756 | 91 attr = cmdtable[cmd] |
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92 cmds = cmd.lstrip(b"^").split(b"|") |
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93 |
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94 d[b'cmd'] = cmds[0] |
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95 d[b'aliases'] = cmd.split(b"|")[1:] |
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96 d[b'desc'] = get_desc(gettext(pycompat.getdoc(attr[0]))) |
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97 d[b'opts'] = list(get_opts(attr[1])) |
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98 |
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99 s = b'hg ' + cmds[0] |
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100 if len(attr) > 2: |
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101 if not attr[2].startswith(b'hg'): |
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102 s += b' ' + attr[2] |
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103 else: |
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104 s = attr[2] |
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105 d[b'synopsis'] = s.strip() |
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106 |
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107 return d |
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108 |
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109 def showdoc(ui): |
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110 # print options |
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111 ui.write(minirst.section(_(b"Options"))) |
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112 multioccur = False |
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113 for optstr, desc in get_opts(globalopts): |
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114 ui.write(b"%s\n %s\n\n" % (optstr, desc)) |
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115 if optstr.endswith(b"[+]>"): |
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116 multioccur = True |
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117 if multioccur: |
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118 ui.write(_(b"\n[+] marked option can be specified multiple times\n")) |
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119 ui.write(b"\n") |
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120 |
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121 # print cmds |
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122 ui.write(minirst.section(_(b"Commands"))) |
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123 commandprinter(ui, table, minirst.subsection, minirst.subsubsection) |
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125 # print help topics |
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126 # The config help topic is included in the hgrc.5 man page. |
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127 helpprinter(ui, helptable, minirst.section, exclude=[b'config']) |
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129 ui.write(minirst.section(_(b"Extensions"))) |
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130 ui.write(_(b"This section contains help for extensions that are " |
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131 b"distributed together with Mercurial. Help for other " |
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132 b"extensions is available in the help system.")) |
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133 ui.write((b"\n\n" |
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134 b".. contents::\n" |
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135 b" :class: htmlonly\n" |
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136 b" :local:\n" |
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137 b" :depth: 1\n\n")) |
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138 |
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139 for extensionname in sorted(allextensionnames()): |
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140 mod = extensions.load(ui, extensionname, None) |
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141 ui.write(minirst.subsection(extensionname)) |
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142 ui.write(b"%s\n\n" % gettext(pycompat.getdoc(mod))) |
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143 cmdtable = getattr(mod, 'cmdtable', None) |
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144 if cmdtable: |
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145 ui.write(minirst.subsubsection(_(b'Commands'))) |
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146 commandprinter(ui, cmdtable, minirst.subsubsubsection, |
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147 minirst.subsubsubsubsection) |
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148 |
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149 def showtopic(ui, topic): |
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150 extrahelptable = [ |
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151 ([b"common"], b'', loaddoc(b'common'), help.TOPIC_CATEGORY_MISC), |
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152 ([b"hg.1"], b'', loaddoc(b'hg.1'), help.TOPIC_CATEGORY_CONFIG), |
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153 ([b"hg-ssh.8"], b'', loaddoc(b'hg-ssh.8'), help.TOPIC_CATEGORY_CONFIG), |
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154 ([b"hgignore.5"], b'', loaddoc(b'hgignore.5'), |
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155 help.TOPIC_CATEGORY_CONFIG), |
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156 ([b"hgrc.5"], b'', loaddoc(b'hgrc.5'), help.TOPIC_CATEGORY_CONFIG), |
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157 ([b"hgignore.5.gendoc"], b'', loaddoc(b'hgignore'), |
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158 help.TOPIC_CATEGORY_CONFIG), |
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159 ([b"hgrc.5.gendoc"], b'', loaddoc(b'config'), |
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160 help.TOPIC_CATEGORY_CONFIG), |
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161 ] |
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162 helpprinter(ui, helptable + extrahelptable, None, include=[topic]) |
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163 |
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164 def helpprinter(ui, helptable, sectionfunc, include=[], exclude=[]): |
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165 for h in helptable: |
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166 names, sec, doc = h[0:3] |
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167 if exclude and names[0] in exclude: |
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168 continue |
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169 if include and names[0] not in include: |
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170 continue |
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171 for name in names: |
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172 ui.write(b".. _%s:\n" % name) |
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173 ui.write(b"\n") |
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174 if sectionfunc: |
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175 ui.write(sectionfunc(sec)) |
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176 if callable(doc): |
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177 doc = doc(ui) |
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178 ui.write(doc) |
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179 ui.write(b"\n") |
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180 |
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181 def commandprinter(ui, cmdtable, sectionfunc, subsectionfunc): |
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182 """Render restructuredtext describing a list of commands and their |
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183 documentations, grouped by command category. |
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184 |
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185 Args: |
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186 ui: UI object to write the output to |
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187 cmdtable: a dict that maps a string of the command name plus its aliases |
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188 (separated with pipes) to a 3-tuple of (the command's function, a list |
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189 of its option descriptions, and a string summarizing available |
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190 options). Example, with aliases added for demonstration purposes: |
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191 |
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192 'phase|alias1|alias2': ( |
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193 <function phase at 0x7f0816b05e60>, |
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194 [ ('p', 'public', False, 'set changeset phase to public'), |
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195 ..., |
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196 ('r', 'rev', [], 'target revision', 'REV')], |
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197 '[-p|-d|-s] [-f] [-r] [REV...]' |
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198 ) |
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199 sectionfunc: minirst function to format command category headers |
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200 subsectionfunc: minirst function to format command headers |
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201 """ |
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202 h = {} |
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204 f = c.split(b"|")[0] |
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205 f = f.lstrip(b"^") |
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206 h[f] = c |
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207 cmds = h.keys() |
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208 |
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209 def helpcategory(cmd): |
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210 """Given a canonical command name from `cmds` (above), retrieve its |
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211 help category. If helpcategory is None, default to CATEGORY_NONE. |
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212 """ |
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213 fullname = h[cmd] |
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214 details = cmdtable[fullname] |
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215 helpcategory = details[0].helpcategory |
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216 return helpcategory or help.registrar.command.CATEGORY_NONE |
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217 |
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218 cmdsbycategory = {category: [] for category in help.CATEGORY_ORDER} |
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219 for cmd in cmds: |
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220 # If a command category wasn't registered, the command won't get |
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221 # rendered below, so we raise an AssertionError. |
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222 if helpcategory(cmd) not in cmdsbycategory: |
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223 raise AssertionError( |
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224 "The following command did not register its (category) in " |
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225 "help.CATEGORY_ORDER: %s (%s)" % (cmd, helpcategory(cmd))) |
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226 cmdsbycategory[helpcategory(cmd)].append(cmd) |
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227 |
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228 # Print the help for each command. We present the commands grouped by |
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229 # category, and we use help.CATEGORY_ORDER as a guide for a helpful order |
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230 # in which to present the categories. |
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231 for category in help.CATEGORY_ORDER: |
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232 categorycmds = cmdsbycategory[category] |
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233 if not categorycmds: |
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234 # Skip empty categories |
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235 continue |
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236 # Print a section header for the category. |
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237 # For now, the category header is at the same level as the headers for |
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238 # the commands in the category; this is fixed in the next commit. |
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239 ui.write(sectionfunc(help.CATEGORY_NAMES[category])) |
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240 # Print each command in the category |
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241 for f in sorted(categorycmds): |
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242 if f.startswith(b"debug"): |
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243 continue |
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244 d = get_cmd(h[f], cmdtable) |
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245 ui.write(subsectionfunc(d[b'cmd'])) |
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246 # short description |
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247 ui.write(d[b'desc'][0]) |
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248 # synopsis |
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249 ui.write(b"::\n\n") |
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250 synopsislines = d[b'synopsis'].splitlines() |
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251 for line in synopsislines: |
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252 # some commands (such as rebase) have a multi-line |
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253 # synopsis |
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254 ui.write(b" %s\n" % line) |
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255 ui.write(b'\n') |
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256 # description |
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257 ui.write(b"%s\n\n" % d[b'desc'][1]) |
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258 # options |
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259 opt_output = list(d[b'opts']) |
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260 if opt_output: |
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261 opts_len = max([len(line[0]) for line in opt_output]) |
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262 ui.write(_(b"Options:\n\n")) |
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263 multioccur = False |
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264 for optstr, desc in opt_output: |
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265 if desc: |
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266 s = b"%-*s %s" % (opts_len, optstr, desc) |
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267 else: |
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268 s = optstr |
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269 ui.write(b"%s\n" % s) |
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270 if optstr.endswith(b"[+]>"): |
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271 multioccur = True |
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272 if multioccur: |
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273 ui.write(_(b"\n[+] marked option can be specified" |
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274 b" multiple times\n")) |
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275 ui.write(b"\n") |
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276 # aliases |
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277 if d[b'aliases']: |
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278 ui.write(_(b" aliases: %s\n\n") % b" ".join(d[b'aliases'])) |
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279 |
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280 def allextensionnames(): |
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281 return set(extensions.enabled().keys()) | set(extensions.disabled().keys()) |
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282 |
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283 if __name__ == "__main__": |
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284 doc = b'hg.1.gendoc' |
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285 if len(sys.argv) > 1: |
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286 doc = encoding.strtolocal(sys.argv[1]) |
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287 |
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288 ui = uimod.ui.load() |
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289 if doc == b'hg.1.gendoc': |
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290 showdoc(ui) |
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291 else: |
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292 showtopic(ui, encoding.strtolocal(sys.argv[1])) |