Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/extensions.py @ 4661:a7e9b6b1adeb
Backed out changeset cfa477946181824f4c769580ebf59710090ba08a
Only printenv was changed, not the actual execution of hooks.
And not setting an empty value might cause problems on platforms
which can't always remove variables from the environment.
author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Thu, 21 Jun 2007 10:00:59 +0200 |
parents | 63b9d2deed48 |
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1 # extensions.py - extension handling for mercurial |
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2 # |
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3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms |
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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 import imp, os |
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9 import commands, hg, util, sys |
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10 from i18n import _ |
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11 |
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12 _extensions = {} |
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13 |
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14 def find(name): |
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15 '''return module with given extension name''' |
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16 try: |
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17 return _extensions[name] |
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18 except KeyError: |
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19 for k, v in _extensions.iteritems(): |
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20 if k.endswith('.' + name) or k.endswith('/' + name): |
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21 return v |
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22 raise KeyError(name) |
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23 |
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24 def load(ui, name, path): |
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25 if name in _extensions: |
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26 return |
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27 if path: |
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28 # the module will be loaded in sys.modules |
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29 # choose an unique name so that it doesn't |
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30 # conflicts with other modules |
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31 module_name = "hgext_%s" % name.replace('.', '_') |
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32 if os.path.isdir(path): |
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33 # module/__init__.py style |
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34 d, f = os.path.split(path) |
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35 fd, fpath, desc = imp.find_module(f, [d]) |
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36 mod = imp.load_module(module_name, fd, fpath, desc) |
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37 else: |
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38 mod = imp.load_source(module_name, path) |
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39 else: |
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40 def importh(name): |
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41 mod = __import__(name) |
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42 components = name.split('.') |
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43 for comp in components[1:]: |
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44 mod = getattr(mod, comp) |
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45 return mod |
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46 try: |
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47 mod = importh("hgext.%s" % name) |
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48 except ImportError: |
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49 mod = importh(name) |
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50 _extensions[name] = mod |
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51 |
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52 uisetup = getattr(mod, 'uisetup', None) |
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53 if uisetup: |
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54 uisetup(ui) |
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55 reposetup = getattr(mod, 'reposetup', None) |
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56 if reposetup: |
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57 hg.repo_setup_hooks.append(reposetup) |
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58 cmdtable = getattr(mod, 'cmdtable', {}) |
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59 overrides = [cmd for cmd in cmdtable if cmd in commands.table] |
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60 if overrides: |
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61 ui.warn(_("extension '%s' overrides commands: %s\n") |
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62 % (name, " ".join(overrides))) |
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63 commands.table.update(cmdtable) |
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64 |
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65 def loadall(ui): |
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66 result = ui.configitems("extensions") |
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67 for i, (name, path) in enumerate(result): |
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68 if path: |
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69 path = os.path.expanduser(path) |
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70 try: |
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71 load(ui, name, path) |
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72 except (util.SignalInterrupt, KeyboardInterrupt): |
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73 raise |
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74 except Exception, inst: |
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75 ui.warn(_("*** failed to import extension %s: %s\n") % |
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76 (name, inst)) |
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77 if ui.print_exc(): |
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78 return 1 |
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79 |