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

diff --git a/lib/wlrepo/mercurial_backend/document.py b/lib/wlrepo/mercurial_backend/document.py
old mode 100644 (file)
new mode 100755 (executable)
index e714561..77b8ead
--- a/lib/wlrepo/mercurial_backend/document.py
+++ b/lib/wlrepo/mercurial_backend/document.py
@@ -1,11 +1,18 @@
 # -*- encoding: utf-8 -*-
 
 # -*- encoding: utf-8 -*-
 

+import logging
+log = logging.getLogger('ral.mercurial')
+

 __author__ = "Łukasz Rekucki"
 __date__ = "$2009-09-25 09:35:06$"
 __doc__ = "Module documentation."
 
 import wlrepo
 import mercurial.error
 __author__ = "Łukasz Rekucki"
 __date__ = "$2009-09-25 09:35:06$"
 __doc__ = "Module documentation."
 
 import wlrepo
 import mercurial.error

+import re
+
+import logging
+log = logging.getLogger('wlrepo.document')

 
 class MercurialDocument(wlrepo.Document):
 
 
 class MercurialDocument(wlrepo.Document):
 


@@ -71,6 +78,9 @@ class MercurialDocument(wlrepo.Document):
     def ismain(self):
         return self._revision.user_name is None
 
     def ismain(self):
         return self._revision.user_name is None
 

+    def islatest(self):
+        return (self == self.latest())
+

     def shared(self):
         if self.ismain():
             return self
     def shared(self):
         if self.ismain():
             return self


@@ -85,125 +95,151 @@ class MercurialDocument(wlrepo.Document):
 
         def take_action(library, resolve):
             # branch from latest 
 
         def take_action(library, resolve):
             # branch from latest 

-            library._create_branch(fullid, parent=self._revision)            
+            library._set_branchname(fullid)

 
         if not self._library.has_revision(fullid):
 
         if not self._library.has_revision(fullid):

+            log.info("Checking out document %s" % fullid)
+

             self.invoke_and_commit(take_action, \
                 lambda d: ("$AUTO$ File checkout.", user) )
 
             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():
+            return True
+
+        shared = self.shared()
+        
+        if shared.ancestorof(self):
+            return True
+
+        if shared.has_parent_from(self):
+            return True
+
+        return False
+                    

     def update(self, user):
         """Update parts of the document."""
         lock = self.library.lock()
         try:
             if self.ismain():
                 # main revision of the document
     def update(self, user):
         """Update parts of the document."""
         lock = self.library.lock()
         try:
             if self.ismain():
                 # main revision of the document

-                return (True, False)
-            
-            if self._revision.has_children():
-                print 'Update failed: has children.'
-                # can't update non-latest revision
-                return (False, False)
+                return self

 
 

-            sv = self.shared()
+            # check for children in this branch
+            if self._revision.has_children(limit_branch=True):
+                raise wlrepo.UpdateException("Revision %s has children." % self.revision)

 
 

-            if self.parentof(sv):
-                return (True, False)
+            shared = self.shared()
+            #     *
+            #    /|
+            #   * |
+            #   | |
+            #
+            # we carry the latest version
+            if shared.ancestorof(self):
+               return self
+
+            #   *
+            #   |\
+            #   | *
+            #   | |
+            #
+            # We just shared
+            if self.parentof(shared):
+                return self
+
+            #  s     s  S
+            #  |     |  |
+            #  *<-S  *<-*
+            #  |  |  |  .
+            #
+            #  This is ok (s - shared, S - self)

 
 

-            if sv.ancestorof(self):
-                return (True, False)
+            if self._revision.merge_with(shared._revision, user=user,\
+                message="$AUTO$ Personal branch update."):
+                return self.latest()
+            else:
+                raise wlrepo.UpdateException("Merge failed.")
+        finally:
+            lock.release()

 
 
 
 

-            return self._revision.merge_with(sv._revision, user=user)
-        finally:
-            lock.release()  
+    def would_share(self):
+        if self.ismain():
+            return False, "Main version is always shared"
+
+        shared = self.shared()
+
+        # we just did this - move on
+        if self.parentof(shared):
+            return False, "Document has been recetly shared - no changes"
+
+        #     *
+        #    /|
+        #   * *
+        #   |\|
+        #   | *
+        #   | |
+        # Situation above is ok - what we don't want, is:
+        #     *
+        #    /|
+        #   * |
+        #   |\|
+        #   | *
+        #   | |
+        # We want to prevent stuff like this.
+        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()
 
     def share(self, message):
         lock = self.library.lock()

-        try:            
-            if self.ismain():
-                return (True, False) # always shared
-
-            user = self._revision.user_name
-            main = self.shared()._revision
-            local = self._revision            
+        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.")

 
 

-            # Case 1:
+            # now check if there is anything to do
+            need_work, info = self.would_share()
+            
+            if not need_work:
+                return self.shared()          
+      
+            # The good situation
+            #

             #         * local
             #         |
             #         * local
             #         |

-            #         * <- can also be here!
-            #        /|
+            #        >* 
+            #        ||

             #       / |
             # main *  *
             #      |  |
             #       / |
             # main *  *
             #      |  |

-            # The local branch has been recently updated,
-            # so we don't need to update yet again, but we need to
-            # merge down to default branch, even if there was
-            # no commit's since last update
-
-            if main.ancestorof(local):
-                print "case 1"
-                success, changed = main.merge_with(local, user=user, message=message)                
-            # Case 2:
-            #
-            # main *  * local
-            #      |\ |
-            #      | \|
-            #      |  *
-            #      |  |
-            #
-            # Default has no changes, to update from this branch
-            # since the last merge of local to default.
-            elif local.has_common_ancestor(main):
-                print "case 2"
-                if not local.parentof(main):
-                    success, changed = main.merge_with(local, user=user, message=message)
-
-            # Case 3:
-            # main *
-            #      |
-            #      * <- this case overlaps with previos one
-            #      |\
-            #      | \
-            #      |  * local
-            #      |  |
-            #
-            # There was a recent merge to the defaul branch and
-            # no changes to local branch recently.
-            #
-            # Use the fact, that user is prepared to see changes, to
-            # update his branch if there are any
-            elif local.ancestorof(main):
-                print "case 3"
-                if not local.parentof(main):
-                    success, changed = local.merge_with(main, user=user, \
-                        message='$AUTO$ Local branch update during share.')
-                    
-            else:
-                print "case 4"
-                success, changed = local.merge_with(main, user=user, \
-                        message='$AUTO$ Local branch update during share.')
+            shared = self.shared()

 
 

+            try:
+                success = shared._revision.merge_with(self._revision, user=self.owner, message=message)

                 if not success:
                 if not success:

-                    return False
-
-                if changed:
-                    local = self.latest()._revision
-                    
-                success, changed = main.merge_with(local, user=user,\
-                    message=message)
-            
-            return success, changed
+                    raise wlrepo.LibraryException("Merge failed.")
+                
+                return shared.latest()
+            except Abort, e:
+                raise wlrepo.LibraryException( repr(e) )

         finally:
         finally:

-            lock.release()     
+            lock.release()
+
+
+    def has_conflict_marks(self):
+        return re.search("^(?:<<<<<<< .*|=======|>>>>>>> .*)$", self.data('xml'), re.MULTILINE)        

 
     def __unicode__(self):
 
     def __unicode__(self):

-        return u"Document(%s:%s)" % (self.name, self.owner)
+        return u"Document(%s:%s)" % (self.id, self.owner)

 
     def __str__(self):
         return self.__unicode__().encode('utf-8')
     
     def __eq__(self, other):
 
     def __str__(self):
         return self.__unicode__().encode('utf-8')
     
     def __eq__(self, other):

-        return (self._revision == other._revision) and (self.name == other.name)
+        return (self._revision == other._revision)