Mercurial > hg
annotate mercurial/extensions.py @ 33052:45b0e9d05ee9
extensions: register functions always at loading extension (issue5601)
Before this patch, functions defined in extensions are registered via
extra loaders only in _dispatch(). Therefore, loading extensions in
other code paths like below omits registration of functions.
- WSGI service
- operation across repositories (e.g. subrepo)
- test-duplicateoptions.py, using extensions.loadall() directly
To register functions always at loading new extension, this patch
moves implementation for extra loading from dispatch._dispatch() to
extensions.loadall().
AFAIK, only commands module causes cyclic dependency between
extensions module, but this patch imports all related modules just
before extra loading in loadall(), in order to centralize them.
This patch makes extensions.py depend on many other modules, even
though extensions.py itself doesn't. It should be avoided if possible,
but I don't have any better idea. Some other places like below aren't
reasonable for extra loading, IMHO.
- specific function in newly added module:
existing callers of extensions.loadall() should invoke it, too
- hg.repository() or so:
no-repo commands aren't covered by this.
BTW, this patch removes _loaded.add(name) on relocation, because
dispatch._loaded is used only for extraloaders (for similar reason,
"exts" variable is removed, too).
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
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date | Sat, 24 Jun 2017 02:39:20 +0900 |
parents | 80a5d237a4ae |
children | c467d13334ee |
rev | line source |
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1 # extensions.py - extension handling for mercurial |
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2 # |
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3 # Copyright 2005-2007 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 __future__ import absolute_import |
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9 |
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10 import imp |
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11 import inspect |
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12 import os |
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13 |
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14 from .i18n import ( |
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15 _, |
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16 gettext, |
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17 ) |
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18 |
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19 from . import ( |
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20 cmdutil, |
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21 encoding, |
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22 error, |
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23 pycompat, |
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24 util, |
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25 ) |
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26 |
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27 _extensions = {} |
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28 _disabledextensions = {} |
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29 _aftercallbacks = {} |
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30 _order = [] |
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31 _builtin = {'hbisect', 'bookmarks', 'parentrevspec', 'progress', 'interhg', |
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32 'inotify', 'hgcia'} |
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33 |
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34 def extensions(ui=None): |
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35 if ui: |
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36 def enabled(name): |
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37 for format in ['%s', 'hgext.%s']: |
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38 conf = ui.config('extensions', format % name) |
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39 if conf is not None and not conf.startswith('!'): |
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40 return True |
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41 else: |
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42 enabled = lambda name: True |
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43 for name in _order: |
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44 module = _extensions[name] |
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45 if module and enabled(name): |
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46 yield name, module |
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47 |
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48 def find(name): |
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49 '''return module with given extension name''' |
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50 mod = None |
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51 try: |
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52 mod = _extensions[name] |
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53 except KeyError: |
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54 for k, v in _extensions.iteritems(): |
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55 if k.endswith('.' + name) or k.endswith('/' + name): |
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56 mod = v |
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57 break |
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58 if not mod: |
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59 raise KeyError(name) |
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60 return mod |
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61 |
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62 def loadpath(path, module_name): |
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63 module_name = module_name.replace('.', '_') |
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64 path = util.normpath(util.expandpath(path)) |
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65 module_name = pycompat.fsdecode(module_name) |
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66 path = pycompat.fsdecode(path) |
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67 if os.path.isdir(path): |
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68 # module/__init__.py style |
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69 d, f = os.path.split(path) |
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70 fd, fpath, desc = imp.find_module(f, [d]) |
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71 return imp.load_module(module_name, fd, fpath, desc) |
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72 else: |
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73 try: |
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74 return imp.load_source(module_name, path) |
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75 except IOError as exc: |
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76 if not exc.filename: |
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77 exc.filename = path # python does not fill this |
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78 raise |
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79 |
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80 def _importh(name): |
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81 """import and return the <name> module""" |
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82 mod = __import__(pycompat.sysstr(name)) |
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83 components = name.split('.') |
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84 for comp in components[1:]: |
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85 mod = getattr(mod, comp) |
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86 return mod |
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87 |
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88 def _importext(name, path=None, reportfunc=None): |
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89 if path: |
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90 # the module will be loaded in sys.modules |
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91 # choose an unique name so that it doesn't |
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92 # conflicts with other modules |
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93 mod = loadpath(path, 'hgext.%s' % name) |
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94 else: |
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95 try: |
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96 mod = _importh("hgext.%s" % name) |
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97 except ImportError as err: |
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98 if reportfunc: |
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99 reportfunc(err, "hgext.%s" % name, "hgext3rd.%s" % name) |
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100 try: |
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101 mod = _importh("hgext3rd.%s" % name) |
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102 except ImportError as err: |
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103 if reportfunc: |
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104 reportfunc(err, "hgext3rd.%s" % name, name) |
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105 mod = _importh(name) |
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106 return mod |
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107 |
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108 def _forbytes(inst): |
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109 """Portably format an import error into a form suitable for |
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110 %-formatting into bytestrings.""" |
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111 return encoding.strtolocal(str(inst)) |
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112 |
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113 def _reportimporterror(ui, err, failed, next): |
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114 # note: this ui.debug happens before --debug is processed, |
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115 # Use --config ui.debug=1 to see them. |
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116 ui.debug('could not import %s (%s): trying %s\n' |
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117 % (failed, _forbytes(err), next)) |
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118 if ui.debugflag: |
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119 ui.traceback() |
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120 |
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121 # attributes set by registrar.command |
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122 _cmdfuncattrs = ('norepo', 'optionalrepo', 'inferrepo') |
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123 |
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124 def _validatecmdtable(ui, cmdtable): |
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125 """Check if extension commands have required attributes""" |
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126 for c, e in cmdtable.iteritems(): |
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127 f = e[0] |
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128 if getattr(f, '_deprecatedregistrar', False): |
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129 ui.deprecwarn("cmdutil.command is deprecated, use " |
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130 "registrar.command to register '%s'" % c, '4.6') |
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131 missing = [a for a in _cmdfuncattrs if not util.safehasattr(f, a)] |
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132 if not missing: |
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133 continue |
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134 raise error.ProgrammingError( |
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135 'missing attributes: %s' % ', '.join(missing), |
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136 hint="use @command decorator to register '%s'" % c) |
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137 |
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138 def load(ui, name, path): |
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139 if name.startswith('hgext.') or name.startswith('hgext/'): |
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140 shortname = name[6:] |
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141 else: |
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142 shortname = name |
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143 if shortname in _builtin: |
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144 return None |
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145 if shortname in _extensions: |
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146 return _extensions[shortname] |
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147 _extensions[shortname] = None |
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148 mod = _importext(name, path, bind(_reportimporterror, ui)) |
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149 |
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150 # Before we do anything with the extension, check against minimum stated |
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151 # compatibility. This gives extension authors a mechanism to have their |
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152 # extensions short circuit when loaded with a known incompatible version |
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153 # of Mercurial. |
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154 minver = getattr(mod, 'minimumhgversion', None) |
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155 if minver and util.versiontuple(minver, 2) > util.versiontuple(n=2): |
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156 ui.warn(_('(third party extension %s requires version %s or newer ' |
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157 'of Mercurial; disabling)\n') % (shortname, minver)) |
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158 return |
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159 _validatecmdtable(ui, getattr(mod, 'cmdtable', {})) |
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160 |
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161 _extensions[shortname] = mod |
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162 _order.append(shortname) |
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163 for fn in _aftercallbacks.get(shortname, []): |
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164 fn(loaded=True) |
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165 return mod |
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166 |
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167 def _runuisetup(name, ui): |
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168 uisetup = getattr(_extensions[name], 'uisetup', None) |
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169 if uisetup: |
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170 try: |
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171 uisetup(ui) |
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172 except Exception as inst: |
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173 ui.traceback() |
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174 msg = _forbytes(inst) |
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175 ui.warn(_("*** failed to set up extension %s: %s\n") % (name, msg)) |
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176 return False |
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177 return True |
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178 |
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179 def _runextsetup(name, ui): |
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180 extsetup = getattr(_extensions[name], 'extsetup', None) |
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181 if extsetup: |
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182 try: |
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183 try: |
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184 extsetup(ui) |
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185 except TypeError: |
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186 if inspect.getargspec(extsetup).args: |
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187 raise |
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188 extsetup() # old extsetup with no ui argument |
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189 except Exception as inst: |
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190 ui.traceback() |
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191 msg = _forbytes(inst) |
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192 ui.warn(_("*** failed to set up extension %s: %s\n") % (name, msg)) |
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193 return False |
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194 return True |
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195 |
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196 def loadall(ui, whitelist=None): |
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197 result = ui.configitems("extensions") |
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198 if whitelist is not None: |
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199 result = [(k, v) for (k, v) in result if k in whitelist] |
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200 newindex = len(_order) |
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201 for (name, path) in result: |
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202 if path: |
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203 if path[0:1] == '!': |
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204 _disabledextensions[name] = path[1:] |
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205 continue |
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206 try: |
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207 load(ui, name, path) |
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208 except Exception as inst: |
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209 msg = _forbytes(inst) |
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210 if path: |
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211 ui.warn(_("*** failed to import extension %s from %s: %s\n") |
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212 % (name, path, msg)) |
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213 else: |
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214 ui.warn(_("*** failed to import extension %s: %s\n") |
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215 % (name, msg)) |
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216 if isinstance(inst, error.Hint) and inst.hint: |
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217 ui.warn(_("*** (%s)\n") % inst.hint) |
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218 ui.traceback() |
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219 |
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220 broken = set() |
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221 for name in _order[newindex:]: |
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222 if not _runuisetup(name, ui): |
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223 broken.add(name) |
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224 |
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225 for name in _order[newindex:]: |
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226 if name in broken: |
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227 continue |
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228 if not _runextsetup(name, ui): |
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229 broken.add(name) |
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230 |
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231 for name in broken: |
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232 _extensions[name] = None |
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233 |
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234 # Call aftercallbacks that were never met. |
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235 for shortname in _aftercallbacks: |
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236 if shortname in _extensions: |
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237 continue |
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238 |
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239 for fn in _aftercallbacks[shortname]: |
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240 fn(loaded=False) |
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241 |
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242 # loadall() is called multiple times and lingering _aftercallbacks |
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243 # entries could result in double execution. See issue4646. |
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244 _aftercallbacks.clear() |
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245 |
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246 # delay importing avoids cyclic dependency (especially commands) |
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247 from . import ( |
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248 color, |
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249 commands, |
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250 fileset, |
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251 revset, |
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252 templatefilters, |
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253 templatekw, |
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254 templater, |
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255 ) |
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256 |
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257 # list of (objname, loadermod, loadername) tuple: |
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258 # - objname is the name of an object in extension module, |
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259 # from which extra information is loaded |
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260 # - loadermod is the module where loader is placed |
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261 # - loadername is the name of the function, |
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262 # which takes (ui, extensionname, extraobj) arguments |
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263 extraloaders = [ |
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264 ('cmdtable', commands, 'loadcmdtable'), |
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265 ('colortable', color, 'loadcolortable'), |
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266 ('filesetpredicate', fileset, 'loadpredicate'), |
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267 ('revsetpredicate', revset, 'loadpredicate'), |
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268 ('templatefilter', templatefilters, 'loadfilter'), |
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269 ('templatefunc', templater, 'loadfunction'), |
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270 ('templatekeyword', templatekw, 'loadkeyword'), |
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271 ] |
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272 |
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273 for name in _order[newindex:]: |
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274 module = _extensions[name] |
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275 if not module: |
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276 continue # loading this module failed |
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277 |
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278 for objname, loadermod, loadername in extraloaders: |
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279 extraobj = getattr(module, objname, None) |
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280 if extraobj is not None: |
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281 getattr(loadermod, loadername)(ui, name, extraobj) |
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282 |
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283 def afterloaded(extension, callback): |
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284 '''Run the specified function after a named extension is loaded. |
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285 |
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286 If the named extension is already loaded, the callback will be called |
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287 immediately. |
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288 |
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289 If the named extension never loads, the callback will be called after |
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290 all extensions have been loaded. |
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291 |
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292 The callback receives the named argument ``loaded``, which is a boolean |
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293 indicating whether the dependent extension actually loaded. |
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294 ''' |
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295 |
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296 if extension in _extensions: |
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297 # Report loaded as False if the extension is disabled |
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298 loaded = (_extensions[extension] is not None) |
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299 callback(loaded=loaded) |
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300 else: |
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301 _aftercallbacks.setdefault(extension, []).append(callback) |
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302 |
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303 def bind(func, *args): |
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304 '''Partial function application |
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305 |
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306 Returns a new function that is the partial application of args and kwargs |
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307 to func. For example, |
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308 |
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309 f(1, 2, bar=3) === bind(f, 1)(2, bar=3)''' |
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310 assert callable(func) |
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311 def closure(*a, **kw): |
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312 return func(*(args + a), **kw) |
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313 return closure |
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314 |
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315 def _updatewrapper(wrap, origfn, unboundwrapper): |
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316 '''Copy and add some useful attributes to wrapper''' |
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317 wrap.__module__ = getattr(origfn, '__module__') |
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318 wrap.__doc__ = getattr(origfn, '__doc__') |
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319 wrap.__dict__.update(getattr(origfn, '__dict__', {})) |
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320 wrap._origfunc = origfn |
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321 wrap._unboundwrapper = unboundwrapper |
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322 |
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323 def wrapcommand(table, command, wrapper, synopsis=None, docstring=None): |
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324 '''Wrap the command named `command' in table |
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325 |
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326 Replace command in the command table with wrapper. The wrapped command will |
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327 be inserted into the command table specified by the table argument. |
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328 |
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329 The wrapper will be called like |
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330 |
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331 wrapper(orig, *args, **kwargs) |
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332 |
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333 where orig is the original (wrapped) function, and *args, **kwargs |
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334 are the arguments passed to it. |
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335 |
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336 Optionally append to the command synopsis and docstring, used for help. |
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337 For example, if your extension wraps the ``bookmarks`` command to add the |
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338 flags ``--remote`` and ``--all`` you might call this function like so: |
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339 |
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340 synopsis = ' [-a] [--remote]' |
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341 docstring = """ |
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342 |
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343 The ``remotenames`` extension adds the ``--remote`` and ``--all`` (``-a``) |
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344 flags to the bookmarks command. Either flag will show the remote bookmarks |
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345 known to the repository; ``--remote`` will also suppress the output of the |
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346 local bookmarks. |
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347 """ |
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348 |
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349 extensions.wrapcommand(commands.table, 'bookmarks', exbookmarks, |
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350 synopsis, docstring) |
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351 ''' |
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352 assert callable(wrapper) |
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353 aliases, entry = cmdutil.findcmd(command, table) |
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354 for alias, e in table.iteritems(): |
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355 if e is entry: |
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356 key = alias |
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357 break |
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358 |
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359 origfn = entry[0] |
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360 wrap = bind(util.checksignature(wrapper), util.checksignature(origfn)) |
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361 _updatewrapper(wrap, origfn, wrapper) |
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362 if docstring is not None: |
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363 wrap.__doc__ += docstring |
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364 |
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365 newentry = list(entry) |
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366 newentry[0] = wrap |
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367 if synopsis is not None: |
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368 newentry[2] += synopsis |
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369 table[key] = tuple(newentry) |
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370 return entry |
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371 |
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372 def wrapfilecache(cls, propname, wrapper): |
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373 """Wraps a filecache property. |
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374 |
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375 These can't be wrapped using the normal wrapfunction. |
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376 """ |
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377 assert callable(wrapper) |
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378 for currcls in cls.__mro__: |
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379 if propname in currcls.__dict__: |
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380 origfn = currcls.__dict__[propname].func |
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381 assert callable(origfn) |
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382 def wrap(*args, **kwargs): |
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383 return wrapper(origfn, *args, **kwargs) |
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384 currcls.__dict__[propname].func = wrap |
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385 break |
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386 |
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387 if currcls is object: |
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388 raise AttributeError( |
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389 _("type '%s' has no property '%s'") % (cls, propname)) |
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390 |
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391 def wrapfunction(container, funcname, wrapper): |
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392 '''Wrap the function named funcname in container |
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393 |
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394 Replace the funcname member in the given container with the specified |
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395 wrapper. The container is typically a module, class, or instance. |
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396 |
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397 The wrapper will be called like |
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398 |
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399 wrapper(orig, *args, **kwargs) |
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400 |
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401 where orig is the original (wrapped) function, and *args, **kwargs |
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402 are the arguments passed to it. |
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403 |
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404 Wrapping methods of the repository object is not recommended since |
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405 it conflicts with extensions that extend the repository by |
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406 subclassing. All extensions that need to extend methods of |
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407 localrepository should use this subclassing trick: namely, |
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408 reposetup() should look like |
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409 |
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410 def reposetup(ui, repo): |
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411 class myrepo(repo.__class__): |
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412 def whatever(self, *args, **kwargs): |
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413 [...extension stuff...] |
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414 super(myrepo, self).whatever(*args, **kwargs) |
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415 [...extension stuff...] |
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416 |
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417 repo.__class__ = myrepo |
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418 |
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419 In general, combining wrapfunction() with subclassing does not |
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420 work. Since you cannot control what other extensions are loaded by |
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421 your end users, you should play nicely with others by using the |
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422 subclass trick. |
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423 ''' |
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424 assert callable(wrapper) |
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425 |
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426 origfn = getattr(container, funcname) |
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427 assert callable(origfn) |
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428 wrap = bind(wrapper, origfn) |
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429 _updatewrapper(wrap, origfn, wrapper) |
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430 setattr(container, funcname, wrap) |
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431 return origfn |
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432 |
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433 def unwrapfunction(container, funcname, wrapper=None): |
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434 '''undo wrapfunction |
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435 |
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436 If wrappers is None, undo the last wrap. Otherwise removes the wrapper |
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437 from the chain of wrappers. |
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438 |
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439 Return the removed wrapper. |
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440 Raise IndexError if wrapper is None and nothing to unwrap; ValueError if |
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441 wrapper is not None but is not found in the wrapper chain. |
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442 ''' |
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443 chain = getwrapperchain(container, funcname) |
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444 origfn = chain.pop() |
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445 if wrapper is None: |
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446 wrapper = chain[0] |
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447 chain.remove(wrapper) |
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448 setattr(container, funcname, origfn) |
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449 for w in reversed(chain): |
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450 wrapfunction(container, funcname, w) |
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451 return wrapper |
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452 |
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453 def getwrapperchain(container, funcname): |
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454 '''get a chain of wrappers of a function |
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455 |
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456 Return a list of functions: [newest wrapper, ..., oldest wrapper, origfunc] |
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457 |
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458 The wrapper functions are the ones passed to wrapfunction, whose first |
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459 argument is origfunc. |
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460 ''' |
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461 result = [] |
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462 fn = getattr(container, funcname) |
8bf97c4c6c2a
extensions: add getwrapperchain to get a list of wrappers
Jun Wu <quark@fb.com>
parents:
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diff
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|
463 while fn: |
8bf97c4c6c2a
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parents:
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diff
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|
464 assert callable(fn) |
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|
465 result.append(getattr(fn, '_unboundwrapper', fn)) |
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parents:
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diff
changeset
|
466 fn = getattr(fn, '_origfunc', None) |
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diff
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|
467 return result |
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parents:
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diff
changeset
|
468 |
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changeset
|
469 def _disabledpaths(strip_init=False): |
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|
470 '''find paths of disabled extensions. returns a dict of {name: path} |
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|
471 removes /__init__.py from packages if strip_init is True''' |
8872
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Dirkjan Ochtman <dirkjan@ochtman.nl>
parents:
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|
472 import hgext |
31074
2912b06905dc
py3: use pycompat.fsencode() to convert __file__ to bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30575
diff
changeset
|
473 extpath = os.path.dirname( |
2912b06905dc
py3: use pycompat.fsencode() to convert __file__ to bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
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diff
changeset
|
474 os.path.abspath(pycompat.fsencode(hgext.__file__))) |
8964
119d1f664eae
extensions: catch OSError when hgext is not accessible (issue1708)
Cédric Duval <cedricduval@free.fr>
parents:
8896
diff
changeset
|
475 try: # might not be a filesystem path |
119d1f664eae
extensions: catch OSError when hgext is not accessible (issue1708)
Cédric Duval <cedricduval@free.fr>
parents:
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diff
changeset
|
476 files = os.listdir(extpath) |
119d1f664eae
extensions: catch OSError when hgext is not accessible (issue1708)
Cédric Duval <cedricduval@free.fr>
parents:
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diff
changeset
|
477 except OSError: |
10363
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extensions: refactor disabled()
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changeset
|
478 return {} |
8964
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extensions: catch OSError when hgext is not accessible (issue1708)
Cédric Duval <cedricduval@free.fr>
parents:
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diff
changeset
|
479 |
8871
20a25042fadc
extensions: move extensions listing functions from mercurial.help
Cédric Duval <cedricduval@free.fr>
parents:
8225
diff
changeset
|
480 exts = {} |
8964
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extensions: catch OSError when hgext is not accessible (issue1708)
Cédric Duval <cedricduval@free.fr>
parents:
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diff
changeset
|
481 for e in files: |
8872
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extensions: simplify by selecting primary hgext
Dirkjan Ochtman <dirkjan@ochtman.nl>
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482 if e.endswith('.py'): |
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extensions: simplify by selecting primary hgext
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|
483 name = e.rsplit('.', 1)[0] |
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|
484 path = os.path.join(extpath, e) |
d0c0013f8713
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parents:
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diff
changeset
|
485 else: |
d0c0013f8713
extensions: simplify by selecting primary hgext
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents:
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changeset
|
486 name = e |
d0c0013f8713
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Dirkjan Ochtman <dirkjan@ochtman.nl>
parents:
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diff
changeset
|
487 path = os.path.join(extpath, e, '__init__.py') |
8877
08636e18268f
extensions: check for path existence only when necessary
Cédric Duval <cedricduval@free.fr>
parents:
8876
diff
changeset
|
488 if not os.path.exists(path): |
08636e18268f
extensions: check for path existence only when necessary
Cédric Duval <cedricduval@free.fr>
parents:
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diff
changeset
|
489 continue |
10364
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diff
changeset
|
490 if strip_init: |
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changeset
|
491 path = os.path.dirname(path) |
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extensions: refactor disabled()
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|
492 if name in exts or name in _order or name == '__init__': |
c07974215b3d
extensions: refactor disabled()
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|
493 continue |
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extensions: refactor disabled()
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diff
changeset
|
494 exts[name] = path |
29895
b1ebc767563d
help: show content for explicitly disabled extension (issue5228)
liscju <piotr.listkiewicz@gmail.com>
parents:
29841
diff
changeset
|
495 exts.update(_disabledextensions) |
10363
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extensions: refactor disabled()
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|
496 return exts |
8872
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parents:
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diff
changeset
|
497 |
14317
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
498 def _moduledoc(file): |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
499 '''return the top-level python documentation for the given file |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
500 |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
501 Loosely inspired by pydoc.source_synopsis(), but rewritten to |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
502 handle triple quotes and to return the whole text instead of just |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
503 the synopsis''' |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
504 result = [] |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
505 |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
506 line = file.readline() |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
507 while line[:1] == '#' or not line.strip(): |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
508 line = file.readline() |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
509 if not line: |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
510 break |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
511 |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
512 start = line[:3] |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
513 if start == '"""' or start == "'''": |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
514 line = line[3:] |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
515 while line: |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
516 if line.rstrip().endswith(start): |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
517 line = line.split(start)[0] |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
518 if line: |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
519 result.append(line) |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
520 break |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
521 elif not line: |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
522 return None # unmatched delimiter |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
523 result.append(line) |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
524 line = file.readline() |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
525 else: |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
526 return None |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
527 |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
528 return ''.join(result) |
660b0c1b6196
extensions: move moduledoc to break import loop with help
Matt Mackall <mpm@selenic.com>
parents:
14316
diff
changeset
|
529 |
10363
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
530 def _disabledhelp(path): |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
531 '''retrieve help synopsis of a disabled extension (without importing)''' |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
532 try: |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
533 file = open(path) |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
534 except IOError: |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
535 return |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
536 else: |
14318
1f46be4689ed
help: consolidate topic hooks in help.py
Matt Mackall <mpm@selenic.com>
parents:
14317
diff
changeset
|
537 doc = _moduledoc(file) |
10363
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
538 file.close() |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
539 |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
540 if doc: # extracting localized synopsis |
30306
5581b294f3c6
help: show help for disabled extensions (issue5228)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30058
diff
changeset
|
541 return gettext(doc) |
10363
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
542 else: |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
543 return _('(no help text available)') |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
544 |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
545 def disabled(): |
14530
cd31a1cc1521
extensions: update doc of enabled() and disabled() according to d5b525697ddb
Yuya Nishihara <yuya@tcha.org>
parents:
14415
diff
changeset
|
546 '''find disabled extensions from hgext. returns a dict of {name: desc}''' |
14539
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
547 try: |
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
548 from hgext import __index__ |
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
549 return dict((name, gettext(desc)) |
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
550 for name, desc in __index__.docs.iteritems() |
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
551 if name not in _order) |
21229
54d7657d7d1e
setup.py, make: avoid problems with outdated, existing hgext/__index__.py*
Thomas Arendsen Hein <thomas@intevation.de>
parents:
20645
diff
changeset
|
552 except (ImportError, AttributeError): |
14539
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
553 pass |
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
554 |
10363
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
555 paths = _disabledpaths() |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
556 if not paths: |
16709
9eca39a91964
extensions.disabled: return {} instead of None no extensions are disabled
Augie Fackler <raf@durin42.com>
parents:
16667
diff
changeset
|
557 return {} |
10363
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
558 |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
559 exts = {} |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
560 for name, path in paths.iteritems(): |
c07974215b3d
extensions: refactor disabled()
Brodie Rao <me+hg@dackz.net>
parents:
10263
diff
changeset
|
561 doc = _disabledhelp(path) |
14316
d5b525697ddb
extensions: drop maxlength from enabled and disabled
Matt Mackall <mpm@selenic.com>
parents:
14079
diff
changeset
|
562 if doc: |
30306
5581b294f3c6
help: show help for disabled extensions (issue5228)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30058
diff
changeset
|
563 exts[name] = doc.splitlines()[0] |
8871
20a25042fadc
extensions: move extensions listing functions from mercurial.help
Cédric Duval <cedricduval@free.fr>
parents:
8225
diff
changeset
|
564 |
14316
d5b525697ddb
extensions: drop maxlength from enabled and disabled
Matt Mackall <mpm@selenic.com>
parents:
14079
diff
changeset
|
565 return exts |
8871
20a25042fadc
extensions: move extensions listing functions from mercurial.help
Cédric Duval <cedricduval@free.fr>
parents:
8225
diff
changeset
|
566 |
10364
de1e7099d100
dispatch: provide help for disabled extensions and commands
Brodie Rao <me+hg@dackz.net>
parents:
10363
diff
changeset
|
567 def disabledext(name): |
de1e7099d100
dispatch: provide help for disabled extensions and commands
Brodie Rao <me+hg@dackz.net>
parents:
10363
diff
changeset
|
568 '''find a specific disabled extension from hgext. returns desc''' |
14539
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
569 try: |
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
570 from hgext import __index__ |
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
571 if name in _order: # enabled |
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
572 return |
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
573 else: |
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
574 return gettext(__index__.docs.get(name)) |
21229
54d7657d7d1e
setup.py, make: avoid problems with outdated, existing hgext/__index__.py*
Thomas Arendsen Hein <thomas@intevation.de>
parents:
20645
diff
changeset
|
575 except (ImportError, AttributeError): |
14539
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
576 pass |
558ec14ba6be
extensions: make disabled()/disabledext() load prebuilt index if available
Yuya Nishihara <yuya@tcha.org>
parents:
14530
diff
changeset
|
577 |
10364
de1e7099d100
dispatch: provide help for disabled extensions and commands
Brodie Rao <me+hg@dackz.net>
parents:
10363
diff
changeset
|
578 paths = _disabledpaths() |
de1e7099d100
dispatch: provide help for disabled extensions and commands
Brodie Rao <me+hg@dackz.net>
parents:
10363
diff
changeset
|
579 if name in paths: |
de1e7099d100
dispatch: provide help for disabled extensions and commands
Brodie Rao <me+hg@dackz.net>
parents:
10363
diff
changeset
|
580 return _disabledhelp(paths[name]) |
de1e7099d100
dispatch: provide help for disabled extensions and commands
Brodie Rao <me+hg@dackz.net>
parents:
10363
diff
changeset
|
581 |
13191
1aea66b71f4f
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582 def disabledcmd(ui, cmd, strict=False): |
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583 '''import disabled extensions until cmd is found. |
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584 returns (cmdname, extname, module)''' |
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585 |
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586 paths = _disabledpaths(strip_init=True) |
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587 if not paths: |
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588 raise error.UnknownCommand(cmd) |
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589 |
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590 def findcmd(cmd, name, path): |
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591 try: |
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592 mod = loadpath(path, 'hgext.%s' % name) |
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593 except Exception: |
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594 return |
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595 try: |
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596 aliases, entry = cmdutil.findcmd(cmd, |
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597 getattr(mod, 'cmdtable', {}), strict) |
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598 except (error.AmbiguousCommand, error.UnknownCommand): |
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599 return |
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600 except Exception: |
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601 ui.warn(_('warning: error finding commands in %s\n') % path) |
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602 ui.traceback() |
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603 return |
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604 for c in aliases: |
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605 if c.startswith(cmd): |
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606 cmd = c |
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607 break |
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608 else: |
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609 cmd = aliases[0] |
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610 return (cmd, name, mod) |
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611 |
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612 ext = None |
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613 # first, search for an extension with the same name as the command |
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614 path = paths.pop(cmd, None) |
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615 if path: |
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616 ext = findcmd(cmd, cmd, path) |
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617 if not ext: |
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618 # otherwise, interrogate each extension until there's a match |
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619 for name, path in paths.iteritems(): |
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620 ext = findcmd(cmd, name, path) |
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621 if ext: |
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622 break |
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623 if ext and 'DEPRECATED' not in ext.__doc__: |
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624 return ext |
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625 |
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626 raise error.UnknownCommand(cmd) |
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627 |
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628 def enabled(shortname=True): |
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629 '''return a dict of {name: desc} of extensions''' |
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630 exts = {} |
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631 for ename, ext in extensions(): |
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632 doc = (gettext(ext.__doc__) or _('(no help text available)')) |
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633 if shortname: |
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634 ename = ename.split('.')[-1] |
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635 exts[ename] = doc.splitlines()[0].strip() |
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636 |
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637 return exts |
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638 |
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639 def notloaded(): |
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640 '''return short names of extensions that failed to load''' |
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641 return [name for name, mod in _extensions.iteritems() if mod is None] |
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642 |
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643 def moduleversion(module): |
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644 '''return version information from given module as a string''' |
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645 if (util.safehasattr(module, 'getversion') |
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646 and callable(module.getversion)): |
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647 version = module.getversion() |
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648 elif util.safehasattr(module, '__version__'): |
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649 version = module.__version__ |
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650 else: |
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651 version = '' |
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652 if isinstance(version, (list, tuple)): |
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653 version = '.'.join(str(o) for o in version) |
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654 return version |
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655 |
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656 def ismoduleinternal(module): |
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657 exttestedwith = getattr(module, 'testedwith', None) |
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658 return exttestedwith == "ships-with-hg-core" |