Mercurial > hg
annotate mercurial/hook.py @ 15711:c51c9dc13a58
cygwin: add cygwin specific normcase logic
in cygwin environment, mount point part of path is treated as case
sensitive, even though underlying NTFS is case insensitive.
this patch preserves mount point part of specified path, only if it is
absolute one.
there is no easy way to get list of current mount points from python
program, other than to execute "mount" external command, because
cygwin does not store current mount points into Unix/Linux like
/etc/XXXtab file.
so, this patch introduces cygwinmountpoints variable to list mount
points to be preserved case.
this allows some other extensions to customize mount point
configuration.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
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date | Fri, 16 Dec 2011 21:21:08 +0900 |
parents | 8b011ededfb2 |
children | 30c34fde40cc |
rev | line source |
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1 # hook.py - hook support for mercurial |
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2 # |
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3 # Copyright 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 i18n import _ |
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9 import os, sys |
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10 import extensions, util |
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11 |
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12 def _pythonhook(ui, repo, name, hname, funcname, args, throw): |
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13 '''call python hook. hook is callable object, looked up as |
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14 name in python module. if callable returns "true", hook |
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15 fails, else passes. if hook raises exception, treated as |
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16 hook failure. exception propagates if throw is "true". |
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17 |
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18 reason for "true" meaning "hook failed" is so that |
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19 unmodified commands (e.g. mercurial.commands.update) can |
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20 be run as hooks without wrappers to convert return values.''' |
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21 |
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22 ui.note(_("calling hook %s: %s\n") % (hname, funcname)) |
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23 obj = funcname |
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24 if not util.safehasattr(obj, '__call__'): |
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25 d = funcname.rfind('.') |
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26 if d == -1: |
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27 raise util.Abort(_('%s hook is invalid ("%s" not in ' |
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28 'a module)') % (hname, funcname)) |
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29 modname = funcname[:d] |
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30 oldpaths = sys.path |
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31 if util.mainfrozen(): |
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32 # binary installs require sys.path manipulation |
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33 modpath, modfile = os.path.split(modname) |
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34 if modpath and modfile: |
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35 sys.path = sys.path[:] + [modpath] |
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36 modname = modfile |
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37 try: |
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38 obj = __import__(modname) |
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39 except ImportError: |
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40 e1 = sys.exc_type, sys.exc_value, sys.exc_traceback |
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41 try: |
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42 # extensions are loaded with hgext_ prefix |
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43 obj = __import__("hgext_%s" % modname) |
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44 except ImportError: |
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45 e2 = sys.exc_type, sys.exc_value, sys.exc_traceback |
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46 if ui.tracebackflag: |
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47 ui.warn(_('exception from first failed import attempt:\n')) |
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48 ui.traceback(e1) |
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49 if ui.tracebackflag: |
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50 ui.warn(_('exception from second failed import attempt:\n')) |
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51 ui.traceback(e2) |
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52 raise util.Abort(_('%s hook is invalid ' |
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53 '(import of "%s" failed)') % |
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54 (hname, modname)) |
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55 sys.path = oldpaths |
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56 try: |
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57 for p in funcname.split('.')[1:]: |
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58 obj = getattr(obj, p) |
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59 except AttributeError: |
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60 raise util.Abort(_('%s hook is invalid ' |
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61 '("%s" is not defined)') % |
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62 (hname, funcname)) |
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63 if not util.safehasattr(obj, '__call__'): |
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64 raise util.Abort(_('%s hook is invalid ' |
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65 '("%s" is not callable)') % |
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66 (hname, funcname)) |
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67 try: |
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68 try: |
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69 # redirect IO descriptors the the ui descriptors so hooks |
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70 # that write directly to these don't mess up the command |
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71 # protocol when running through the command server |
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72 old = sys.stdout, sys.stderr, sys.stdin |
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73 sys.stdout, sys.stderr, sys.stdin = ui.fout, ui.ferr, ui.fin |
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74 |
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75 r = obj(ui=ui, repo=repo, hooktype=name, **args) |
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76 except KeyboardInterrupt: |
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77 raise |
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78 except Exception, exc: |
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79 if isinstance(exc, util.Abort): |
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80 ui.warn(_('error: %s hook failed: %s\n') % |
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81 (hname, exc.args[0])) |
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82 else: |
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83 ui.warn(_('error: %s hook raised an exception: ' |
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84 '%s\n') % (hname, exc)) |
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85 if throw: |
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86 raise |
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87 ui.traceback() |
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88 return True |
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89 finally: |
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90 sys.stdout, sys.stderr, sys.stdin = old |
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91 if r: |
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92 if throw: |
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93 raise util.Abort(_('%s hook failed') % hname) |
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94 ui.warn(_('warning: %s hook failed\n') % hname) |
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95 return r |
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96 |
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97 def _exthook(ui, repo, name, cmd, args, throw): |
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98 ui.note(_("running hook %s: %s\n") % (name, cmd)) |
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99 |
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100 env = {} |
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101 for k, v in args.iteritems(): |
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102 if util.safehasattr(v, '__call__'): |
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103 v = v() |
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104 if isinstance(v, dict): |
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105 # make the dictionary element order stable across Python |
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106 # implementations |
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107 v = ('{' + |
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108 ', '.join('%r: %r' % i for i in sorted(v.iteritems())) + |
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109 '}') |
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110 env['HG_' + k.upper()] = v |
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111 |
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112 if repo: |
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113 cwd = repo.root |
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114 else: |
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115 cwd = os.getcwd() |
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116 if 'HG_URL' in env and env['HG_URL'].startswith('remote:http'): |
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117 r = util.system(cmd, environ=env, cwd=cwd, out=ui) |
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118 else: |
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119 r = util.system(cmd, environ=env, cwd=cwd, out=ui.fout) |
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120 if r: |
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121 desc, r = util.explainexit(r) |
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122 if throw: |
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123 raise util.Abort(_('%s hook %s') % (name, desc)) |
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124 ui.warn(_('warning: %s hook %s\n') % (name, desc)) |
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125 return r |
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126 |
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127 _redirect = False |
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128 def redirect(state): |
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129 global _redirect |
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130 _redirect = state |
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131 |
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132 def hook(ui, repo, name, throw=False, **args): |
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133 r = False |
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134 |
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135 oldstdout = -1 |
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136 if _redirect: |
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137 try: |
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138 stdoutno = sys.__stdout__.fileno() |
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139 stderrno = sys.__stderr__.fileno() |
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140 # temporarily redirect stdout to stderr, if possible |
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141 if stdoutno >= 0 and stderrno >= 0: |
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142 sys.__stdout__.flush() |
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143 oldstdout = os.dup(stdoutno) |
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144 os.dup2(stderrno, stdoutno) |
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145 except AttributeError: |
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146 # __stdout/err__ doesn't have fileno(), it's not a real file |
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147 pass |
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148 |
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149 try: |
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150 for hname, cmd in ui.configitems('hooks'): |
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151 if hname.split('.')[0] != name or not cmd: |
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152 continue |
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153 if util.safehasattr(cmd, '__call__'): |
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154 r = _pythonhook(ui, repo, name, hname, cmd, args, throw) or r |
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155 elif cmd.startswith('python:'): |
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156 if cmd.count(':') >= 2: |
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157 path, cmd = cmd[7:].rsplit(':', 1) |
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158 path = util.expandpath(path) |
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159 if repo: |
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160 path = os.path.join(repo.root, path) |
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161 mod = extensions.loadpath(path, 'hghook.%s' % hname) |
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162 hookfn = getattr(mod, cmd) |
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163 else: |
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164 hookfn = cmd[7:].strip() |
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165 r = _pythonhook(ui, repo, name, hname, hookfn, args, throw) or r |
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166 else: |
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167 r = _exthook(ui, repo, hname, cmd, args, throw) or r |
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168 finally: |
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169 if _redirect and oldstdout >= 0: |
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170 os.dup2(oldstdout, stdoutno) |
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171 os.close(oldstdout) |
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172 |
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173 return r |