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135
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1 # dispatch.py - command dispatching 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
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6 # GNU General Public License version 2, incorporated herein by reference.
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7
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8 from i18n import _
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9 import os, sys, atexit, signal, pdb, socket, errno, shlex, time
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10 import util, commands, hg, fancyopts, extensions, hook, error
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11 import cmdutil, encoding
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12 import ui as _ui
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13
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14 def run():
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15 "run the command in sys.argv"
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16 sys.exit(dispatch(sys.argv[1:]))
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17
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18 def dispatch(args):
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19 "run the command specified in args"
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20 try:
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21 u = _ui.ui()
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22 if '--traceback' in args:
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23 u.setconfig('ui', 'traceback', 'on')
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24 except util.Abort, inst:
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25 sys.stderr.write(_("abort: %s\n") % inst)
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26 return -1
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27 return _runcatch(u, args)
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28
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29 def _runcatch(ui, args):
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30 def catchterm(*args):
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31 raise error.SignalInterrupt
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32
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33 for name in 'SIGBREAK', 'SIGHUP', 'SIGTERM':
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34 num = getattr(signal, name, None)
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35 if num: signal.signal(num, catchterm)
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36
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37 try:
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38 try:
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39 # enter the debugger before command execution
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40 if '--debugger' in args:
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41 pdb.set_trace()
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42 try:
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43 return _dispatch(ui, args)
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44 finally:
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45 ui.flush()
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46 except:
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47 # enter the debugger when we hit an exception
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48 if '--debugger' in args:
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49 pdb.post_mortem(sys.exc_info()[2])
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50 ui.traceback()
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51 raise
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52
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53 # Global exception handling, alphabetically
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54 # Mercurial-specific first, followed by built-in and library exceptions
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55 except error.AmbiguousCommand, inst:
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56 ui.warn(_("hg: command '%s' is ambiguous:\n %s\n") %
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57 (inst.args[0], " ".join(inst.args[1])))
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58 except error.ConfigError, inst:
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59 ui.warn(_("hg: %s\n") % inst.args[0])
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60 except error.LockHeld, inst:
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61 if inst.errno == errno.ETIMEDOUT:
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62 reason = _('timed out waiting for lock held by %s') % inst.locker
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63 else:
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64 reason = _('lock held by %s') % inst.locker
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65 ui.warn(_("abort: %s: %s\n") % (inst.desc or inst.filename, reason))
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66 except error.LockUnavailable, inst:
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67 ui.warn(_("abort: could not lock %s: %s\n") %
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68 (inst.desc or inst.filename, inst.strerror))
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69 except error.ParseError, inst:
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70 if inst.args[0]:
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71 ui.warn(_("hg %s: %s\n") % (inst.args[0], inst.args[1]))
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72 commands.help_(ui, inst.args[0])
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73 else:
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74 ui.warn(_("hg: %s\n") % inst.args[1])
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75 commands.help_(ui, 'shortlist')
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76 except error.RepoError, inst:
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77 ui.warn(_("abort: %s!\n") % inst)
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78 except error.ResponseError, inst:
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79 ui.warn(_("abort: %s") % inst.args[0])
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80 if not isinstance(inst.args[1], basestring):
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81 ui.warn(" %r\n" % (inst.args[1],))
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82 elif not inst.args[1]:
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83 ui.warn(_(" empty string\n"))
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84 else:
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85 ui.warn("\n%r\n" % util.ellipsis(inst.args[1]))
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86 except error.RevlogError, inst:
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87 ui.warn(_("abort: %s!\n") % inst)
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88 except error.SignalInterrupt:
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89 ui.warn(_("killed!\n"))
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90 except error.UnknownCommand, inst:
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91 ui.warn(_("hg: unknown command '%s'\n") % inst.args[0])
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92 commands.help_(ui, 'shortlist')
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93 except util.Abort, inst:
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94 ui.warn(_("abort: %s\n") % inst)
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95 except ImportError, inst:
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96 m = str(inst).split()[-1]
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97 ui.warn(_("abort: could not import module %s!\n") % m)
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98 if m in "mpatch bdiff".split():
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99 ui.warn(_("(did you forget to compile extensions?)\n"))
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100 elif m in "zlib".split():
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101 ui.warn(_("(is your Python install correct?)\n"))
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102 except IOError, inst:
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103 if hasattr(inst, "code"):
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104 ui.warn(_("abort: %s\n") % inst)
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105 elif hasattr(inst, "reason"):
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106 try: # usually it is in the form (errno, strerror)
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107 reason = inst.reason.args[1]
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108 except: # it might be anything, for example a string
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109 reason = inst.reason
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110 ui.warn(_("abort: error: %s\n") % reason)
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111 elif hasattr(inst, "args") and inst.args[0] == errno.EPIPE:
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112 if ui.debugflag:
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113 ui.warn(_("broken pipe\n"))
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114 elif getattr(inst, "strerror", None):
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115 if getattr(inst, "filename", None):
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116 ui.warn(_("abort: %s: %s\n") % (inst.strerror, inst.filename))
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117 else:
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118 ui.warn(_("abort: %s\n") % inst.strerror)
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119 else:
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120 raise
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121 except OSError, inst:
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122 if getattr(inst, "filename", None):
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123 ui.warn(_("abort: %s: %s\n") % (inst.strerror, inst.filename))
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124 else:
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125 ui.warn(_("abort: %s\n") % inst.strerror)
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126 except KeyboardInterrupt:
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127 try:
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128 ui.warn(_("interrupted!\n"))
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129 except IOError, inst:
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130 if inst.errno == errno.EPIPE:
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131 if ui.debugflag:
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132 ui.warn(_("\nbroken pipe\n"))
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133 else:
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134 raise
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135 except MemoryError:
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136 ui.warn(_("abort: out of memory\n"))
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137 except SystemExit, inst:
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138 # Commands shouldn't sys.exit directly, but give a return code.
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139 # Just in case catch this and and pass exit code to caller.
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140 return inst.code
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141 except socket.error, inst:
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142 ui.warn(_("abort: %s\n") % inst.args[-1])
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143 except:
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144 ui.warn(_("** unknown exception encountered, details follow\n"))
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145 ui.warn(_("** report bug details to "
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146 "http://mercurial.selenic.com/bts/\n"))
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147 ui.warn(_("** or mercurial@selenic.com\n"))
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148 ui.warn(_("** Mercurial Distributed SCM (version %s)\n")
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149 % util.version())
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150 ui.warn(_("** Extensions loaded: %s\n")
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151 % ", ".join([x[0] for x in extensions.extensions()]))
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152 raise
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153
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154 return -1
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155
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156 def _findrepo(p):
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157 while not os.path.isdir(os.path.join(p, ".hg")):
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158 oldp, p = p, os.path.dirname(p)
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159 if p == oldp:
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160 return None
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161
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162 return p
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163
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164 def aliasargs(fn):
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165 if hasattr(fn, 'args'):
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166 return fn.args
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167 return []
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168
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169 class cmdalias(object):
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170 def __init__(self, name, definition, cmdtable):
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171 self.name = name
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172 self.definition = definition
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173 self.args = []
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174 self.opts = []
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175 self.help = ''
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176 self.norepo = True
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177
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178 try:
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179 cmdutil.findcmd(self.name, cmdtable, True)
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180 self.shadows = True
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181 except error.UnknownCommand:
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182 self.shadows = False
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183
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184 if not self.definition:
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185 def fn(ui, *args):
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186 ui.warn(_("no definition for alias '%s'\n") % self.name)
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187 return 1
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188 self.fn = fn
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189
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190 return
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191
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192 args = shlex.split(self.definition)
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193 cmd = args.pop(0)
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194 opts = []
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195 help = ''
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196
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197 try:
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198 self.fn, self.opts, self.help = cmdutil.findcmd(cmd, cmdtable, False)[1]
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199 self.args = aliasargs(self.fn) + args
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200 if cmd not in commands.norepo.split(' '):
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201 self.norepo = False
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202 except error.UnknownCommand:
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203 def fn(ui, *args):
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204 ui.warn(_("alias '%s' resolves to unknown command '%s'\n") \
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205 % (self.name, cmd))
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206 return 1
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207 self.fn = fn
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208 except error.AmbiguousCommand:
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209 def fn(ui, *args):
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210 ui.warn(_("alias '%s' resolves to ambiguous command '%s'\n") \
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211 % (self.name, cmd))
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212 return 1
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213 self.fn = fn
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214
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215 def __call__(self, ui, *args, **opts):
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216 if self.shadows:
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217 ui.debug(_("alias '%s' shadows command\n") % self.name)
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218
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219 return self.fn(ui, *args, **opts)
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220
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221 def addaliases(ui, cmdtable):
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222 # aliases are processed after extensions have been loaded, so they
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223 # may use extension commands. Aliases can also use other alias definitions,
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224 # but only if they have been defined prior to the current definition.
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225 for alias, definition in ui.configitems('alias'):
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226 aliasdef = cmdalias(alias, definition, cmdtable)
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227 cmdtable[alias] = (aliasdef, aliasdef.opts, aliasdef.help)
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228 if aliasdef.norepo:
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229 commands.norepo += ' %s' % alias
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230
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231 def _parse(ui, args):
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232 options = {}
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233 cmdoptions = {}
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234
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235 try:
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236 args = fancyopts.fancyopts(args, commands.globalopts, options)
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237 except fancyopts.getopt.GetoptError, inst:
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238 raise error.ParseError(None, inst)
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239
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240 if args:
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241 cmd, args = args[0], args[1:]
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242 aliases, i = cmdutil.findcmd(cmd, commands.table,
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243 ui.config("ui", "strict"))
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244 cmd = aliases[0]
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245 args = aliasargs(i[0]) + args
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246 defaults = ui.config("defaults", cmd)
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247 if defaults:
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248 args = shlex.split(defaults) + args
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249 c = list(i[1])
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250 else:
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251 cmd = None
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252 c = []
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253
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254 # combine global options into local
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255 for o in commands.globalopts:
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256 c.append((o[0], o[1], options[o[1]], o[3]))
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257
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258 try:
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259 args = fancyopts.fancyopts(args, c, cmdoptions, True)
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260 except fancyopts.getopt.GetoptError, inst:
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261 raise error.ParseError(cmd, inst)
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262
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263 # separate global options back out
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264 for o in commands.globalopts:
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265 n = o[1]
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266 options[n] = cmdoptions[n]
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267 del cmdoptions[n]
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268
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269 return (cmd, cmd and i[0] or None, args, options, cmdoptions)
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270
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271 def _parseconfig(ui, config):
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272 """parse the --config options from the command line"""
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273 for cfg in config:
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274 try:
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275 name, value = cfg.split('=', 1)
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276 section, name = name.split('.', 1)
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277 if not section or not name:
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278 raise IndexError
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279 ui.setconfig(section, name, value)
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280 except (IndexError, ValueError):
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281 raise util.Abort(_('malformed --config option: %s') % cfg)
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282
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283 def _earlygetopt(aliases, args):
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284 """Return list of values for an option (or aliases).
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285
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286 The values are listed in the order they appear in args.
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287 The options and values are removed from args.
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288 """
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289 try:
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290 argcount = args.index("--")
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291 except ValueError:
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292 argcount = len(args)
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293 shortopts = [opt for opt in aliases if len(opt) == 2]
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294 values = []
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295 pos = 0
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296 while pos < argcount:
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297 if args[pos] in aliases:
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298 if pos + 1 >= argcount:
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299 # ignore and let getopt report an error if there is no value
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300 break
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301 del args[pos]
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302 values.append(args.pop(pos))
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303 argcount -= 2
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304 elif args[pos][:2] in shortopts:
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305 # short option can have no following space, e.g. hg log -Rfoo
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306 values.append(args.pop(pos)[2:])
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307 argcount -= 1
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308 else:
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309 pos += 1
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310 return values
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311
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312 def runcommand(lui, repo, cmd, fullargs, ui, options, d):
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313 # run pre-hook, and abort if it fails
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314 ret = hook.hook(lui, repo, "pre-%s" % cmd, False, args=" ".join(fullargs))
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315 if ret:
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316 return ret
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317 ret = _runcommand(ui, options, cmd, d)
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318 # run post-hook, passing command result
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319 hook.hook(lui, repo, "post-%s" % cmd, False, args=" ".join(fullargs),
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320 result = ret)
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321 return ret
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322
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323 _loaded = set()
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324 def _dispatch(ui, args):
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325 # read --config before doing anything else
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326 # (e.g. to change trust settings for reading .hg/hgrc)
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327 _parseconfig(ui, _earlygetopt(['--config'], args))
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328
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329 # check for cwd
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330 cwd = _earlygetopt(['--cwd'], args)
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331 if cwd:
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332 os.chdir(cwd[-1])
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333
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334 # read the local repository .hgrc into a local ui object
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335 path = _findrepo(os.getcwd()) or ""
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336 if not path:
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337 lui = ui
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338 if path:
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339 try:
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340 lui = ui.copy()
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341 lui.readconfig(os.path.join(path, ".hg", "hgrc"))
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342 except IOError:
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343 pass
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344
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345 # now we can expand paths, even ones in .hg/hgrc
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346 rpath = _earlygetopt(["-R", "--repository", "--repo"], args)
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347 if rpath:
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348 path = lui.expandpath(rpath[-1])
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349 lui = ui.copy()
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350 lui.readconfig(os.path.join(path, ".hg", "hgrc"))
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351
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352 extensions.loadall(lui)
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353 for name, module in extensions.extensions():
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354 if name in _loaded:
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355 continue
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356
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357 # setup extensions
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358 # TODO this should be generalized to scheme, where extensions can
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359 # redepend on other extensions. then we should toposort them, and
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360 # do initialization in correct order
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361 extsetup = getattr(module, 'extsetup', None)
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362 if extsetup:
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363 extsetup()
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364
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365 cmdtable = getattr(module, 'cmdtable', {})
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366 overrides = [cmd for cmd in cmdtable if cmd in commands.table]
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367 if overrides:
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368 ui.warn(_("extension '%s' overrides commands: %s\n")
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369 % (name, " ".join(overrides)))
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370 commands.table.update(cmdtable)
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371 _loaded.add(name)
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372
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373 addaliases(lui, commands.table)
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374
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375 # check for fallback encoding
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376 fallback = lui.config('ui', 'fallbackencoding')
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377 if fallback:
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378 encoding.fallbackencoding = fallback
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379
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380 fullargs = args
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381 cmd, func, args, options, cmdoptions = _parse(lui, args)
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382
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383 if options["config"]:
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384 raise util.Abort(_("Option --config may not be abbreviated!"))
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385 if options["cwd"]:
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386 raise util.Abort(_("Option --cwd may not be abbreviated!"))
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387 if options["repository"]:
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388 raise util.Abort(_(
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389 "Option -R has to be separated from other options (e.g. not -qR) "
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390 "and --repository may only be abbreviated as --repo!"))
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391
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392 if options["encoding"]:
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393 encoding.encoding = options["encoding"]
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394 if options["encodingmode"]:
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395 encoding.encodingmode = options["encodingmode"]
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396 if options["time"]:
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397 def get_times():
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398 t = os.times()
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399 if t[4] == 0.0: # Windows leaves this as zero, so use time.clock()
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400 t = (t[0], t[1], t[2], t[3], time.clock())
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401 return t
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402 s = get_times()
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403 def print_time():
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404 t = get_times()
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405 ui.warn(_("Time: real %.3f secs (user %.3f+%.3f sys %.3f+%.3f)\n") %
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406 (t[4]-s[4], t[0]-s[0], t[2]-s[2], t[1]-s[1], t[3]-s[3]))
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407 atexit.register(print_time)
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408
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409 if options['verbose'] or options['debug'] or options['quiet']:
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410 ui.setconfig('ui', 'verbose', str(bool(options['verbose'])))
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411 ui.setconfig('ui', 'debug', str(bool(options['debug'])))
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412 ui.setconfig('ui', 'quiet', str(bool(options['quiet'])))
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413 if options['traceback']:
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414 ui.setconfig('ui', 'traceback', 'on')
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415 if options['noninteractive']:
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416 ui.setconfig('ui', 'interactive', 'off')
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417
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418 if options['help']:
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419 return commands.help_(ui, cmd, options['version'])
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420 elif options['version']:
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421 return commands.version_(ui)
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422 elif not cmd:
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423 return commands.help_(ui, 'shortlist')
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424
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425 repo = None
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426 if cmd not in commands.norepo.split():
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427 try:
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428 repo = hg.repository(ui, path=path)
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429 ui = repo.ui
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430 if not repo.local():
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431 raise util.Abort(_("repository '%s' is not local") % path)
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432 ui.setconfig("bundle", "mainreporoot", repo.root)
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433 except error.RepoError:
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434 if cmd not in commands.optionalrepo.split():
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435 if args and not path: # try to infer -R from command args
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436 repos = map(_findrepo, args)
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437 guess = repos[0]
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438 if guess and repos.count(guess) == len(repos):
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439 return _dispatch(ui, ['--repository', guess] + fullargs)
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440 if not path:
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441 raise error.RepoError(_("There is no Mercurial repository"
|
|
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442 " here (.hg not found)"))
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443 raise
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444 args.insert(0, repo)
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445 elif rpath:
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446 ui.warn("warning: --repository ignored\n")
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|
447
|
|
|
448 d = lambda: util.checksignature(func)(ui, *args, **cmdoptions)
|
|
|
449 return runcommand(lui, repo, cmd, fullargs, ui, options, d)
|
|
|
450
|
|
|
451 def _runcommand(ui, options, cmd, cmdfunc):
|
|
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452 def checkargs():
|
|
|
453 try:
|
|
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454 return cmdfunc()
|
|
|
455 except error.SignatureError:
|
|
|
456 raise error.ParseError(cmd, _("invalid arguments"))
|
|
|
457
|
|
|
458 if options['profile']:
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|
|
459 format = ui.config('profiling', 'format', default='text')
|
|
|
460
|
|
|
461 if not format in ['text', 'kcachegrind']:
|
|
|
462 ui.warn(_("unrecognized profiling format '%s'"
|
|
|
463 " - Ignored\n") % format)
|
|
|
464 format = 'text'
|
|
|
465
|
|
|
466 output = ui.config('profiling', 'output')
|
|
|
467
|
|
|
468 if output:
|
|
|
469 path = os.path.expanduser(output)
|
|
|
470 path = ui.expandpath(path)
|
|
|
471 ostream = open(path, 'wb')
|
|
|
472 else:
|
|
|
473 ostream = sys.stderr
|
|
|
474
|
|
|
475 try:
|
|
|
476 from mercurial import lsprof
|
|
|
477 except ImportError:
|
|
|
478 raise util.Abort(_(
|
|
|
479 'lsprof not available - install from '
|
|
|
480 'http://codespeak.net/svn/user/arigo/hack/misc/lsprof/'))
|
|
|
481 p = lsprof.Profiler()
|
|
|
482 p.enable(subcalls=True)
|
|
|
483 try:
|
|
|
484 return checkargs()
|
|
|
485 finally:
|
|
|
486 p.disable()
|
|
|
487
|
|
|
488 if format == 'kcachegrind':
|
|
|
489 import lsprofcalltree
|
|
|
490 calltree = lsprofcalltree.KCacheGrind(p)
|
|
|
491 calltree.output(ostream)
|
|
|
492 else:
|
|
|
493 # format == 'text'
|
|
|
494 stats = lsprof.Stats(p.getstats())
|
|
|
495 stats.sort()
|
|
|
496 stats.pprint(top=10, file=ostream, climit=5)
|
|
|
497
|
|
|
498 if output:
|
|
|
499 ostream.close()
|
|
|
500 else:
|
|
|
501 return checkargs()
|
