Client-side XSLT renderer prototype.

[redakcja.git] / lib / wlrepo / mercurial_backend / document.py

diff --git a/lib/wlrepo/mercurial_backend/document.py b/lib/wlrepo/mercurial_backend/document.py
index 3bd26a6..77b8ead 100755 (executable)
--- a/lib/wlrepo/mercurial_backend/document.py
+++ b/lib/wlrepo/mercurial_backend/document.py
@@ -103,7 +103,7 @@ class MercurialDocument(wlrepo.Document):
             self.invoke_and_commit(take_action, \
                 lambda d: ("$AUTO$ File checkout.", user) )
 
-        return self._library.document_for_rev(fullid)
+        return self._library.document_for_revision(fullid)
 
     def up_to_date(self):
         if self.ismain():
@@ -168,13 +168,13 @@ class MercurialDocument(wlrepo.Document):
 
     def would_share(self):
         if self.ismain():
-            return False
+            return False, "Main version is always shared"
 
         shared = self.shared()
 
         # we just did this - move on
         if self.parentof(shared):
-            return False
+            return False, "Document has been recetly shared - no changes"
 
         #     *
         #    /|
@@ -190,14 +190,22 @@ class MercurialDocument(wlrepo.Document):
         #   | *
         #   | |
         # We want to prevent stuff like this.
-        if self.parent().parentof(shared):
-            return False
+        if self.parent().parentof(shared) and shared.parentof(self):
+            return False, "Preventing zig-zag"
+
+        return True, "All ok"
 
     def share(self, message):
         lock = self.library.lock()
         try:
+            # check if the document is in "updated" state
+            if not self.up_to_date():
+                raise wlrepo.OutdatedException("You must update your document before share.")
 
-            if not self.would_share():
+            # now check if there is anything to do
+            need_work, info = self.would_share()
+            
+            if not need_work:
                 return self.shared()          
       
             # The good situation
@@ -209,15 +217,16 @@ class MercurialDocument(wlrepo.Document):
             #       / |
             # main *  *
             #      |  |
-            if shared.ancestorof(self):               
-                success = shared._revision.merge_with(self._revision, user=self.owner, message=message)
+            shared = self.shared()
 
+            try:
+                success = shared._revision.merge_with(self._revision, user=self.owner, message=message)
                 if not success:
                     raise wlrepo.LibraryException("Merge failed.")
                 
                 return shared.latest()
-
-            raise wlrepo.LibraryException("Unrecognized share-state.")
+            except Abort, e:
+                raise wlrepo.LibraryException( repr(e) )
         finally:
             lock.release()