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comparison mercurial/localrepo.py @ 4070:961ccb615cf7

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Handle functions as the value of a hooks.<name> config variable This should make it easier for extensions to add a hook when they're loaded.
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
date Fri, 09 Feb 2007 03:48:28 -0200
parents 82eb0fafb56d
children 35b39097c3e6
comparison
equal deleted inserted replaced
4069:3fef134832d8 4070:961ccb615cf7
140 reason for "true" meaning "hook failed" is so that 140 reason for "true" meaning "hook failed" is so that
141 unmodified commands (e.g. mercurial.commands.update) can 141 unmodified commands (e.g. mercurial.commands.update) can
142 be run as hooks without wrappers to convert return values.''' 142 be run as hooks without wrappers to convert return values.'''
143 143
144 self.ui.note(_("calling hook %s: %s\n") % (hname, funcname)) 144 self.ui.note(_("calling hook %s: %s\n") % (hname, funcname))
145 d = funcname.rfind('.') 145 obj = funcname
146 if d == -1: 146 if not callable(obj):
147 raise util.Abort(_('%s hook is invalid ("%s" not in a module)') 147 d = funcname.rfind('.')
148 % (hname, funcname)) 148 if d == -1:
149 modname = funcname[:d] 149 raise util.Abort(_('%s hook is invalid ("%s" not in '
150 try: 150 'a module)') % (hname, funcname))
151 obj = __import__(modname) 151 modname = funcname[:d]
152 except ImportError:
153 try: 152 try:
154 # extensions are loaded with hgext_ prefix 153 obj = __import__(modname)
155 obj = __import__("hgext_%s" % modname)
156 except ImportError: 154 except ImportError:
155 try:
156 # extensions are loaded with hgext_ prefix
157 obj = __import__("hgext_%s" % modname)
158 except ImportError:
159 raise util.Abort(_('%s hook is invalid '
160 '(import of "%s" failed)') %
161 (hname, modname))
162 try:
163 for p in funcname.split('.')[1:]:
164 obj = getattr(obj, p)
165 except AttributeError, err:
157 raise util.Abort(_('%s hook is invalid ' 166 raise util.Abort(_('%s hook is invalid '
158 '(import of "%s" failed)') % 167 '("%s" is not defined)') %
159 (hname, modname)) 168 (hname, funcname))
160 try: 169 if not callable(obj):
161 for p in funcname.split('.')[1:]: 170 raise util.Abort(_('%s hook is invalid '
162 obj = getattr(obj, p) 171 '("%s" is not callable)') %
163 except AttributeError, err: 172 (hname, funcname))
164 raise util.Abort(_('%s hook is invalid '
165 '("%s" is not defined)') %
166 (hname, funcname))
167 if not callable(obj):
168 raise util.Abort(_('%s hook is invalid '
169 '("%s" is not callable)') %
170 (hname, funcname))
171 try: 173 try:
172 r = obj(ui=self.ui, repo=self, hooktype=name, **args) 174 r = obj(ui=self.ui, repo=self, hooktype=name, **args)
173 except (KeyboardInterrupt, util.SignalInterrupt): 175 except (KeyboardInterrupt, util.SignalInterrupt):
174 raise 176 raise
175 except Exception, exc: 177 except Exception, exc:
203 r = False 205 r = False
204 hooks = [(hname, cmd) for hname, cmd in self.ui.configitems("hooks") 206 hooks = [(hname, cmd) for hname, cmd in self.ui.configitems("hooks")
205 if hname.split(".", 1)[0] == name and cmd] 207 if hname.split(".", 1)[0] == name and cmd]
206 hooks.sort() 208 hooks.sort()
207 for hname, cmd in hooks: 209 for hname, cmd in hooks:
208 if cmd.startswith('python:'): 210 if callable(cmd):
211 r = callhook(hname, cmd) or r
212 elif cmd.startswith('python:'):
209 r = callhook(hname, cmd[7:].strip()) or r 213 r = callhook(hname, cmd[7:].strip()) or r
210 else: 214 else:
211 r = runhook(hname, cmd) or r 215 r = runhook(hname, cmd) or r
212 return r 216 return r
213 217