Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/VCS/__init__.py	Mon Dec 28 16:03:33 2009 +0000
@@ -0,0 +1,56 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2002 - 2009 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing the general part of the interface to version control systems.
+
+The general part of the VCS interface defines classes to implement common
+dialogs. These are a dialog to enter command options, a dialog to display
+some repository information and an abstract base class. The individual 
+interfaces (i.e. CVS) have to be subclasses of this base class.
+"""
+
+from E4Gui.E4Application import e4App
+
+import Preferences
+
+######################################################################
+## Below is the factory function to instantiate the appropriate
+## vcs object depending on the project settings.
+######################################################################
+
+def factory(vcs):
+    """
+    Modul factory function to generate the right vcs object.
+    
+    @param vcs name of the VCS system to be used (string)
+    @return the instantiated VCS object
+    """
+    pluginManager = e4App().getObject("PluginManager")
+    if pluginManager is None:
+        # that should not happen
+        vc = None
+    
+    vc = pluginManager.getPluginObject("version_control", vcs, maybeActive = True)
+    if vc is None:
+        # try alternative vcs interfaces assuming, that there is a common
+        # indicator for the alternatives
+        found = False
+        for indicator, vcsData in pluginManager.getVcsSystemIndicators().items():
+            for vcsSystem, vcsSystemDisplay in vcsData:
+                if vcsSystem == vcs:
+                    found = True
+                    break
+            
+            if found:
+                if len(vcsData) > 1:
+                    for vcsSystem, vcsSystemDisplay in vcsData:
+                        if vcsSystem != vcs:
+                            vc = pluginManager.getPluginObject(
+                                "version_control", vcsSystem, maybeActive = True)
+                            if vc is not None:
+                                break
+                break
+    return vc
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