Code cleanup

- extended repository models with scm functions
- moved get_changeset_safe function to lib

rhodecode/lib/__init__.py

@@ -342,3 +342,23 b' def credentials_filter(uri):'
 
     return ''.join(uri)
 
+def get_changeset_safe(repo, rev):
+    """
+    Safe version of get_changeset if this changeset doesn't exists for a 
+    repo it returns a Dummy one instead
+    
+    :param repo:
+    :param rev:
+    """
+    from vcs.backends.base import BaseRepository
+    from vcs.exceptions import RepositoryError
+    if not isinstance(repo, BaseRepository):
+        raise Exception('You must pass an Repository '
+                        'object as first argument got %s', type(repo))
+
+    try:
+        cs = repo.get_changeset(rev)
+    except RepositoryError:
+        from rhodecode.lib.utils import EmptyChangeset
+        cs = EmptyChangeset(requested_revision=rev)
+    return cs
  No newline at end of file

rhodecode/lib/helpers.py

@@ -37,7 +37,7 b' from webhelpers.html.tags import _set_in'
 
 from vcs.utils.annotate import annotate_highlight
 from rhodecode.lib.utils import repo_name_slug
-from rhodecode.lib import str2bool, safe_unicode, safe_str
+from rhodecode.lib import str2bool, safe_unicode, safe_str,get_changeset_safe
 
 def _reset(name, value=None, id=NotGiven, type="reset", **attrs):
     """
@@ -275,21 +275,6 b' def pygmentize_annotation(repo_name, fil'
 
     return literal(annotate_highlight(filenode, url_func(repo_name), **kwargs))
 
-def get_changeset_safe(repo, rev):
-    from vcs.backends.base import BaseRepository
-    from vcs.exceptions import RepositoryError
-    if not isinstance(repo, BaseRepository):
-        raise Exception('You must pass an Repository '
-                        'object as first argument got %s', type(repo))
-
-    try:
-        cs = repo.get_changeset(rev)
-    except RepositoryError:
-        from rhodecode.lib.utils import EmptyChangeset
-        cs = EmptyChangeset()
-    return cs
-
-
 def is_following_repo(repo_name, user_id):
     from rhodecode.model.scm import ScmModel
     return ScmModel().is_following_repo(repo_name, user_id)

rhodecode/lib/utils.py

@@ -313,13 +313,14 b' class EmptyChangeset(BaseChangeset):'
     an EmptyChangeset
     """
 
-    def __init__(self, cs='0' * 40, repo=None):
+    def __init__(self, cs='0' * 40, repo=None,requested_revision=None):
         self._empty_cs = cs
         self.revision = -1
         self.message = ''
         self.author = ''
         self.date = ''
         self.repository = repo
+        self.requested_revision = requested_revision
 
     @LazyProperty
     def raw_id(self):

rhodecode/model/db.py

@@ -43,7 +43,7 b' from vcs.utils.lazy import LazyProperty'
 from vcs.nodes import FileNode
 
 from rhodecode.lib.exceptions import UsersGroupsAssignedException
-from rhodecode.lib import str2bool, json, safe_str
+from rhodecode.lib import str2bool, json, safe_str, get_changeset_safe
 from rhodecode.model.meta import Base, Session
 from rhodecode.model.caching_query import FromCache
 
@@ -538,8 +538,7 b' class Repository(Base, BaseModel):'
 
 
         ret = Session.query(RhodeCodeUi)\
-            .options(FromCache("sql_cache_short",
-                               "repository_repo_ui")).all()
+            .options(FromCache("sql_cache_short", "repository_repo_ui")).all()
 
         hg_ui = ret
         for ui_ in hg_ui:
@@ -551,6 +550,25 b' class Repository(Base, BaseModel):'
         return baseui
 
     #==========================================================================
+    # SCM PROPERTIES
+    #==========================================================================
+
+    def get_changeset(self, rev):
+        return get_changeset_safe(self.scm_instance, rev)
+
+    @property
+    def tip(self):
+        return self.get_changeset('tip')
+
+    @property
+    def author(self):
+        return self.tip.author
+
+    @property
+    def last_change(self):
+        return self.scm_instance.last_change
+
+    #==========================================================================
     # SCM CACHE INSTANCE
     #==========================================================================
 
@@ -580,7 +598,7 b' class Repository(Base, BaseModel):'
         Session.add(inv)
         Session.commit()
 
-    @property
+    @LazyProperty
     def scm_instance(self):
         return self.__get_instance()