Mercurial > hg
annotate mercurial/dispatch.py @ 5969:821fc5c0656c
Merge with -stable
author | Matt Mackall <mpm@selenic.com> |
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date | Thu, 31 Jan 2008 14:44:00 -0600 |
parents | 2c565b9598b8 |
children | b913d3aacddc |
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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 |
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6 # of the GNU General Public License, incorporated herein by reference. |
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7 |
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8 from node import * |
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9 from i18n import _ |
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10 import os, sys, atexit, signal, pdb, traceback, socket, errno, shlex, time |
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11 import util, commands, hg, lock, fancyopts, revlog, version, extensions, hook |
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12 import cmdutil |
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13 import ui as _ui |
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14 |
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15 class ParseError(Exception): |
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16 """Exception raised on errors in parsing the command line.""" |
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17 |
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18 def run(): |
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19 "run the command in sys.argv" |
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20 sys.exit(dispatch(sys.argv[1:])) |
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21 |
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22 def dispatch(args): |
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23 "run the command specified in args" |
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24 try: |
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25 u = _ui.ui(traceback='--traceback' in args) |
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26 except util.Abort, inst: |
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27 sys.stderr.write(_("abort: %s\n") % inst) |
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28 return -1 |
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29 return _runcatch(u, args) |
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30 |
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31 def _runcatch(ui, args): |
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32 def catchterm(*args): |
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33 raise util.SignalInterrupt |
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34 |
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35 for name in 'SIGBREAK', 'SIGHUP', 'SIGTERM': |
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36 num = getattr(signal, name, None) |
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37 if num: signal.signal(num, catchterm) |
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38 |
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39 try: |
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40 try: |
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41 # enter the debugger before command execution |
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42 if '--debugger' in args: |
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43 pdb.set_trace() |
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44 try: |
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45 return _dispatch(ui, args) |
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46 finally: |
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47 ui.flush() |
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48 except: |
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49 # enter the debugger when we hit an exception |
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50 if '--debugger' in args: |
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51 pdb.post_mortem(sys.exc_info()[2]) |
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52 ui.print_exc() |
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53 raise |
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54 |
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55 except ParseError, inst: |
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56 if inst.args[0]: |
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57 ui.warn(_("hg %s: %s\n") % (inst.args[0], inst.args[1])) |
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58 commands.help_(ui, inst.args[0]) |
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59 else: |
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60 ui.warn(_("hg: %s\n") % inst.args[1]) |
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61 commands.help_(ui, 'shortlist') |
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62 except cmdutil.AmbiguousCommand, inst: |
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63 ui.warn(_("hg: command '%s' is ambiguous:\n %s\n") % |
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64 (inst.args[0], " ".join(inst.args[1]))) |
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65 except cmdutil.UnknownCommand, inst: |
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66 ui.warn(_("hg: unknown command '%s'\n") % inst.args[0]) |
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67 commands.help_(ui, 'shortlist') |
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68 except hg.RepoError, inst: |
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69 ui.warn(_("abort: %s!\n") % inst) |
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70 except lock.LockHeld, inst: |
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71 if inst.errno == errno.ETIMEDOUT: |
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72 reason = _('timed out waiting for lock held by %s') % inst.locker |
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73 else: |
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74 reason = _('lock held by %s') % inst.locker |
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75 ui.warn(_("abort: %s: %s\n") % (inst.desc or inst.filename, reason)) |
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76 except lock.LockUnavailable, inst: |
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77 ui.warn(_("abort: could not lock %s: %s\n") % |
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78 (inst.desc or inst.filename, inst.strerror)) |
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79 except revlog.RevlogError, inst: |
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80 ui.warn(_("abort: %s!\n") % inst) |
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81 except util.SignalInterrupt: |
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82 ui.warn(_("killed!\n")) |
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83 except KeyboardInterrupt: |
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84 try: |
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85 ui.warn(_("interrupted!\n")) |
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86 except IOError, inst: |
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87 if inst.errno == errno.EPIPE: |
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88 if ui.debugflag: |
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89 ui.warn(_("\nbroken pipe\n")) |
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90 else: |
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91 raise |
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92 except socket.error, inst: |
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93 ui.warn(_("abort: %s\n") % inst[1]) |
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94 except IOError, inst: |
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95 if hasattr(inst, "code"): |
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96 ui.warn(_("abort: %s\n") % inst) |
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97 elif hasattr(inst, "reason"): |
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98 try: # usually it is in the form (errno, strerror) |
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99 reason = inst.reason.args[1] |
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100 except: # it might be anything, for example a string |
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101 reason = inst.reason |
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102 ui.warn(_("abort: error: %s\n") % reason) |
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103 elif hasattr(inst, "args") and inst[0] == errno.EPIPE: |
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104 if ui.debugflag: |
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105 ui.warn(_("broken pipe\n")) |
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106 elif getattr(inst, "strerror", None): |
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107 if getattr(inst, "filename", None): |
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108 ui.warn(_("abort: %s: %s\n") % (inst.strerror, inst.filename)) |
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109 else: |
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110 ui.warn(_("abort: %s\n") % inst.strerror) |
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111 else: |
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112 raise |
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113 except OSError, inst: |
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114 if getattr(inst, "filename", None): |
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115 ui.warn(_("abort: %s: %s\n") % (inst.strerror, inst.filename)) |
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116 else: |
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117 ui.warn(_("abort: %s\n") % inst.strerror) |
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118 except util.UnexpectedOutput, inst: |
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119 ui.warn(_("abort: %s") % inst[0]) |
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120 if not isinstance(inst[1], basestring): |
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121 ui.warn(" %r\n" % (inst[1],)) |
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122 elif not inst[1]: |
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123 ui.warn(_(" empty string\n")) |
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124 else: |
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125 ui.warn("\n%r\n" % util.ellipsis(inst[1])) |
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126 except ImportError, inst: |
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127 m = str(inst).split()[-1] |
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128 ui.warn(_("abort: could not import module %s!\n") % m) |
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129 if m in "mpatch bdiff".split(): |
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130 ui.warn(_("(did you forget to compile extensions?)\n")) |
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131 elif m in "zlib".split(): |
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132 ui.warn(_("(is your Python install correct?)\n")) |
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133 |
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134 except util.Abort, inst: |
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135 ui.warn(_("abort: %s\n") % inst) |
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136 except MemoryError: |
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137 ui.warn(_("abort: out of memory\n")) |
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138 except SystemExit, inst: |
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139 # Commands shouldn't sys.exit directly, but give a return code. |
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140 # Just in case catch this and and pass exit code to caller. |
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141 return inst.code |
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142 except: |
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143 ui.warn(_("** unknown exception encountered, details follow\n")) |
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144 ui.warn(_("** report bug details to " |
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145 "http://www.selenic.com/mercurial/bts\n")) |
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146 ui.warn(_("** or mercurial@selenic.com\n")) |
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147 ui.warn(_("** Mercurial Distributed SCM (version %s)\n") |
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148 % version.get_version()) |
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149 raise |
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150 |
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151 return -1 |
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152 |
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153 def _findrepo(): |
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154 p = os.getcwd() |
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155 while not os.path.isdir(os.path.join(p, ".hg")): |
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156 oldp, p = p, os.path.dirname(p) |
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157 if p == oldp: |
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158 return None |
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159 |
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160 return p |
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161 |
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162 def _parse(ui, args): |
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163 options = {} |
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164 cmdoptions = {} |
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165 |
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166 try: |
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167 args = fancyopts.fancyopts(args, commands.globalopts, options) |
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168 except fancyopts.getopt.GetoptError, inst: |
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169 raise ParseError(None, inst) |
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170 |
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171 if args: |
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172 cmd, args = args[0], args[1:] |
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173 aliases, i = cmdutil.findcmd(ui, cmd, commands.table) |
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174 cmd = aliases[0] |
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175 defaults = ui.config("defaults", cmd) |
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176 if defaults: |
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177 args = shlex.split(defaults) + args |
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178 c = list(i[1]) |
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179 else: |
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180 cmd = None |
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181 c = [] |
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182 |
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183 # combine global options into local |
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184 for o in commands.globalopts: |
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185 c.append((o[0], o[1], options[o[1]], o[3])) |
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186 |
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187 try: |
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188 args = fancyopts.fancyopts(args, c, cmdoptions) |
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189 except fancyopts.getopt.GetoptError, inst: |
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190 raise ParseError(cmd, inst) |
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191 |
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192 # separate global options back out |
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193 for o in commands.globalopts: |
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194 n = o[1] |
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195 options[n] = cmdoptions[n] |
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196 del cmdoptions[n] |
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197 |
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198 return (cmd, cmd and i[0] or None, args, options, cmdoptions) |
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199 |
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200 def _parseconfig(config): |
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201 """parse the --config options from the command line""" |
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202 parsed = [] |
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203 for cfg in config: |
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204 try: |
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205 name, value = cfg.split('=', 1) |
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206 section, name = name.split('.', 1) |
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207 if not section or not name: |
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208 raise IndexError |
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209 parsed.append((section, name, value)) |
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210 except (IndexError, ValueError): |
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211 raise util.Abort(_('malformed --config option: %s') % cfg) |
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212 return parsed |
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213 |
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214 def _earlygetopt(aliases, args): |
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215 """Return list of values for an option (or aliases). |
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216 |
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217 The values are listed in the order they appear in args. |
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218 The options and values are removed from args. |
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219 """ |
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220 try: |
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221 argcount = args.index("--") |
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222 except ValueError: |
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223 argcount = len(args) |
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224 shortopts = [opt for opt in aliases if len(opt) == 2] |
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225 values = [] |
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226 pos = 0 |
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227 while pos < argcount: |
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228 if args[pos] in aliases: |
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229 if pos + 1 >= argcount: |
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230 # ignore and let getopt report an error if there is no value |
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231 break |
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232 del args[pos] |
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233 values.append(args.pop(pos)) |
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234 argcount -= 2 |
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235 elif args[pos][:2] in shortopts: |
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236 # short option can have no following space, e.g. hg log -Rfoo |
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237 values.append(args.pop(pos)[2:]) |
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238 argcount -= 1 |
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239 else: |
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240 pos += 1 |
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241 return values |
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242 |
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243 _loaded = {} |
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244 def _dispatch(ui, args): |
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245 # read --config before doing anything else |
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246 # (e.g. to change trust settings for reading .hg/hgrc) |
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247 config = _earlygetopt(['--config'], args) |
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248 if config: |
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249 ui.updateopts(config=_parseconfig(config)) |
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250 |
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251 # check for cwd |
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252 cwd = _earlygetopt(['--cwd'], args) |
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253 if cwd: |
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254 os.chdir(cwd[-1]) |
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255 |
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256 # read the local repository .hgrc into a local ui object |
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257 path = _findrepo() or "" |
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258 if not path: |
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259 lui = ui |
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260 if path: |
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261 try: |
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262 lui = _ui.ui(parentui=ui) |
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263 lui.readconfig(os.path.join(path, ".hg", "hgrc")) |
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264 except IOError: |
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265 pass |
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266 |
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267 # now we can expand paths, even ones in .hg/hgrc |
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268 rpath = _earlygetopt(["-R", "--repository", "--repo"], args) |
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269 if rpath: |
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270 path = lui.expandpath(rpath[-1]) |
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271 lui = _ui.ui(parentui=ui) |
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272 lui.readconfig(os.path.join(path, ".hg", "hgrc")) |
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273 |
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274 extensions.loadall(lui) |
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275 for name, module in extensions.extensions(): |
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276 if name in _loaded: |
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277 continue |
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278 |
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279 # setup extensions |
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280 # TODO this should be generalized to scheme, where extensions can |
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281 # redepend on other extensions. then we should toposort them, and |
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282 # do initialization in correct order |
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283 extsetup = getattr(module, 'extsetup', None) |
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284 if extsetup: |
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285 extsetup() |
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286 |
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287 cmdtable = getattr(module, 'cmdtable', {}) |
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288 overrides = [cmd for cmd in cmdtable if cmd in commands.table] |
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289 if overrides: |
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290 ui.warn(_("extension '%s' overrides commands: %s\n") |
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291 % (name, " ".join(overrides))) |
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292 commands.table.update(cmdtable) |
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293 _loaded[name] = 1 |
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294 # check for fallback encoding |
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295 fallback = lui.config('ui', 'fallbackencoding') |
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296 if fallback: |
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297 util._fallbackencoding = fallback |
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298 |
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299 fullargs = args |
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300 cmd, func, args, options, cmdoptions = _parse(lui, args) |
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301 |
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302 if options["config"]: |
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303 raise util.Abort(_("Option --config may not be abbreviated!")) |
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304 if options["cwd"]: |
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305 raise util.Abort(_("Option --cwd may not be abbreviated!")) |
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306 if options["repository"]: |
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307 raise util.Abort(_( |
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308 "Option -R has to be separated from other options (i.e. not -qR) " |
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309 "and --repository may only be abbreviated as --repo!")) |
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310 |
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311 if options["encoding"]: |
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312 util._encoding = options["encoding"] |
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313 if options["encodingmode"]: |
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314 util._encodingmode = options["encodingmode"] |
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315 if options["time"]: |
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316 def get_times(): |
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317 t = os.times() |
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318 if t[4] == 0.0: # Windows leaves this as zero, so use time.clock() |
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319 t = (t[0], t[1], t[2], t[3], time.clock()) |
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320 return t |
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321 s = get_times() |
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322 def print_time(): |
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323 t = get_times() |
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324 ui.warn(_("Time: real %.3f secs (user %.3f+%.3f sys %.3f+%.3f)\n") % |
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325 (t[4]-s[4], t[0]-s[0], t[2]-s[2], t[1]-s[1], t[3]-s[3])) |
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326 atexit.register(print_time) |
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327 |
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328 ui.updateopts(options["verbose"], options["debug"], options["quiet"], |
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329 not options["noninteractive"], options["traceback"]) |
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330 |
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331 if options['help']: |
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332 return commands.help_(ui, cmd, options['version']) |
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333 elif options['version']: |
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334 return commands.version_(ui) |
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335 elif not cmd: |
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336 return commands.help_(ui, 'shortlist') |
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337 |
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338 repo = None |
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339 if cmd not in commands.norepo.split(): |
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340 try: |
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341 repo = hg.repository(ui, path=path) |
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342 ui = repo.ui |
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343 ui.setconfig("bundle", "mainreporoot", repo.root) |
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344 if not repo.local(): |
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345 raise util.Abort(_("repository '%s' is not local") % path) |
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346 except hg.RepoError: |
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347 if cmd not in commands.optionalrepo.split(): |
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348 if not path: |
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349 raise hg.RepoError(_("There is no Mercurial repository here" |
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350 " (.hg not found)")) |
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351 raise |
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352 d = lambda: func(ui, repo, *args, **cmdoptions) |
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353 else: |
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354 d = lambda: func(ui, *args, **cmdoptions) |
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355 |
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356 # run pre-hook, and abort if it fails |
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357 ret = hook.hook(lui, repo, "pre-%s" % cmd, False, args=" ".join(fullargs)) |
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358 if ret: |
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359 return ret |
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360 ret = _runcommand(ui, options, cmd, d) |
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361 # run post-hook, passing command result |
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362 hook.hook(lui, repo, "post-%s" % cmd, False, args=" ".join(fullargs), |
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363 result = ret) |
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364 return ret |
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365 |
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366 def _runcommand(ui, options, cmd, cmdfunc): |
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367 def checkargs(): |
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368 try: |
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369 return cmdfunc() |
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370 except TypeError, inst: |
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371 # was this an argument error? |
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372 tb = traceback.extract_tb(sys.exc_info()[2]) |
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373 if len(tb) != 2: # no |
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374 raise |
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375 raise ParseError(cmd, _("invalid arguments")) |
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376 |
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377 if options['profile']: |
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378 import hotshot, hotshot.stats |
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379 prof = hotshot.Profile("hg.prof") |
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380 try: |
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381 try: |
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382 return prof.runcall(checkargs) |
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383 except: |
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384 try: |
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385 ui.warn(_('exception raised - generating ' |
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386 'profile anyway\n')) |
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387 except: |
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388 pass |
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389 raise |
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390 finally: |
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391 prof.close() |
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392 stats = hotshot.stats.load("hg.prof") |
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393 stats.strip_dirs() |
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394 stats.sort_stats('time', 'calls') |
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395 stats.print_stats(40) |
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396 elif options['lsprof']: |
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397 try: |
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398 from mercurial import lsprof |
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399 except ImportError: |
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400 raise util.Abort(_( |
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401 'lsprof not available - install from ' |
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402 'http://codespeak.net/svn/user/arigo/hack/misc/lsprof/')) |
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403 p = lsprof.Profiler() |
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404 p.enable(subcalls=True) |
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405 try: |
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406 return checkargs() |
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407 finally: |
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408 p.disable() |
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409 stats = lsprof.Stats(p.getstats()) |
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410 stats.sort() |
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411 stats.pprint(top=10, file=sys.stderr, climit=5) |
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412 else: |
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413 return checkargs() |