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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 657fa6e..77b8ead
--- a/lib/wlrepo/mercurial_backend/document.py
+++ b/lib/wlrepo/mercurial_backend/document.py
@@ -1,20 +1,40 @@
 # -*- 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
 __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):
 
     def data(self, entry):
 
 class MercurialDocument(wlrepo.Document):
 
     def data(self, entry):
-        path = self._revision._docname + '.' + entry            
-        return self._library._filectx(path, \
-            self._revision.hgrev()).data()   
+        path = self._library._sanitize_string(self.id + u'.' + entry)
+        try:
+            return self._library._filectx(path, \
+                self._revision.hgrev()).data().decode('utf-8')
+        except mercurial.error.LookupError, e:
+            fl = [x.decode('utf-8') for x in self._revision._changectx]            
+            raise wlrepo.EntryNotFound(self._revision, path.decode('utf-8'), fl)
 
     def quickwrite(self, entry, data, msg, user=None):
         user = user or self.owner
 
     def quickwrite(self, entry, data, msg, user=None):
         user = user or self.owner
+
+        if isinstance(data, unicode):
+            data = data.encode('utf-8')
+            
+        user = self._library._sanitize_string(user)
+        msg = self._library._sanitize_string(msg)
+        entry = self._library._sanitize_string(entry)
+
         if user is None:
             raise ValueError("Can't determine user.")
         
         if user is None:
             raise ValueError("Can't determine user.")
         
@@ -22,151 +42,204 @@ class MercurialDocument(wlrepo.Document):
             f = l._fileopen(r(entry), "w+")
             f.write(data)
             f.close()
             f = l._fileopen(r(entry), "w+")
             f.write(data)
             f.close()
-            l._fileadd(r(entry))
+            l._fileadd(r(entry))            
 
 
-        return self.invoke_and_commit(write, lambda d: (msg, user))
+        return self.invoke_and_commit(write, lambda d: (msg, \
+                self._library._sanitize_string(self.owner)) )
 
 
-    def invoke_and_commit(self, ops, before_commit):
-        lock = self._library._lock()
+    def invoke_and_commit(self, ops, commit_info):
+        lock = self._library.lock()
         try:            
             self._library._checkout(self._revision.hgrev())
 
             def entry_path(entry):
         try:            
             self._library._checkout(self._revision.hgrev())
 
             def entry_path(entry):
-                return self.id + '.' + entry
+                return self._library._sanitize_string(self.id + u'.' + entry)
             
             ops(self._library, entry_path)
             
             ops(self._library, entry_path)
-            message, user = before_commit(self)            
-            self._library._commit(message, user)
+            message, user = commit_info(self)
 
 
-            return self._library.document(docid=self.id, user=self.owner)
-        finally:
-            lock.release()            
+            message = self._library._sanitize_string(message)
+            user = self._library._sanitize_string(user)
 
 
+            self._library._commit(message, user)
+            try:
+                return self._library.document(docid=self.id, user=user)
+            except Exception, e:
+                # rollback the last commit
+                self._library._rollback()
+                raise e
+        finally:
+            lock.release()
+        
     # def commit(self, message, user):
     #    """Make a new commit."""
     #    self.invoke_and_commit(message, user, lambda *a: True)
 
     def ismain(self):
     # def commit(self, message, user):
     #    """Make a new commit."""
     #    self.invoke_and_commit(message, user, lambda *a: True)
 
     def ismain(self):
-        return self._revision.user_name() is None
+        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
-        return self._library.document(docid=self._revision.document_name())
+        
+        return self._library.document(docid=self.id)
+
+    def latest(self):
+        return self._library.document(docid=self.id, user=self.owner)
 
     def take(self, user):
         fullid = self._library.fulldocid(self.id, user)
 
         def take_action(library, resolve):
             # branch from latest 
 
     def take(self, user):
         fullid = self._library.fulldocid(self.id, user)
 
         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."""
     def update(self, user):
         """Update parts of the document."""
-        lock = self.library._lock()
+        lock = self.library.lock()
         try:
             if self.ismain():
                 # main revision of the document
         try:
             if self.ismain():
                 # main revision of the document
-                return True
-            
-            if self._revision.has_children():
-                # can't update non-latest revision
-                return False
+                return self
 
 
-            sv = self.shared()
-            
-            if not sv.ancestorof(self) and not self.parentof(sv):
-                self._revision.merge_with(sv._revision, user=user)
+            # check for children in this branch
+            if self._revision.has_children(limit_branch=True):
+                raise wlrepo.UpdateException("Revision %s has children." % self.revision)
 
 
-            return True
-        finally:
-            lock.release()  
+            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)
 
 
-    def share(self, message):
-        lock = self.library._lock()
-        try:            
-            if self.ismain():
-                return True # always shared          
+            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()
 
 
-            user = self._revision.user_name()
 
 
-            main = self.shared()._revision
-            local = self._revision
+    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"
 
 
-            no_changes = True
+    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.")
 
 
-            # 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"
-                main.merge_with(local, user=user, message=message)
-                no_changes = False
-            # 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):
-                    main.merge_with(local, user=user, message=message)
-                    no_changes = False
-
-            # 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):
-                    local.merge_with(main, user=user, message='Local branch update.')
-                    no_changes = False
-            else:
-                print "case 4"
-                local.merge_with(main, user=user, message='Local branch update.')
-                local = self.shelf()
-                main.merge_with(local, user=user, message=message)
-
-            print "no_changes: ", no_changes
-            return no_changes
+            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()
+            except Abort, e:
+                raise wlrepo.LibraryException( repr(e) )
         finally:
         finally:
-            lock.release()     
+            lock.release()
 
 
-    def __str__(self):
-        return u"Document(%s:%s)" % (self.name, self.owner)
 
 
+    def has_conflict_marks(self):
+        return re.search("^(?:<<<<<<< .*|=======|>>>>>>> .*)$", self.data('xml'), re.MULTILINE)        
+
+    def __unicode__(self):
+        return u"Document(%s:%s)" % (self.id, self.owner)
+
+    def __str__(self):
+        return self.__unicode__().encode('utf-8')
+    
     def __eq__(self, other):
     def __eq__(self, other):
-        return (self._revision == other._revision) and (self.name == other.name)
+        return (self._revision == other._revision)