files: fixes error when passing a diff without parameters and caused server crash

adde dulwich dep, to rhodecode to make sure it is installed

rhodecode/controllers/files.py

@@ -98,7 +98,7 b' class FilesController(BaseRepoController'
         #reditect to given revision from form if given
         post_revision = request.POST.get('at_rev', None)
         if post_revision:
-            cs = self.__get_cs_or_redirect(revision, repo_name)
+            cs = self.__get_cs_or_redirect(post_revision, repo_name)
             redirect(url('files_home', repo_name=c.repo_name,
                          revision=cs.raw_id, f_path=f_path))
 
@@ -213,14 +213,14 b' class FilesController(BaseRepoController'
                 c.changeset_1 = c.rhodecode_repo.get_changeset(diff1)
                 node1 = c.changeset_1.get_node(f_path)
             else:
-                c.changeset_1 = EmptyChangeset()
+                c.changeset_1 = EmptyChangeset(repo=c.rhodecode_repo)
                 node1 = FileNode('.', '', changeset=c.changeset_1)
 
             if diff2 not in ['', None, 'None', '0' * 12, '0' * 40]:
                 c.changeset_2 = c.rhodecode_repo.get_changeset(diff2)
                 node2 = c.changeset_2.get_node(f_path)
             else:
-                c.changeset_2 = EmptyChangeset()
+                c.changeset_2 = EmptyChangeset(repo=c.rhodecode_repo)
                 node2 = FileNode('.', '', changeset=c.changeset_2)
         except RepositoryError:
             return redirect(url('files_home',

rhodecode/lib/utils.py

@@ -68,6 +68,7 b" def recursive_replace(str, replace=' '):"
         str = str.replace(replace * 2, replace)
         return recursive_replace(str, replace)
 
+
 def repo_name_slug(value):
     """Return slug of name of repository
     This function is called on each creation/modification
@@ -83,9 +84,11 b' def repo_name_slug(value):'
     slug = collapse(slug, '-')
     return slug
 
+
 def get_repo_slug(request):
     return request.environ['pylons.routes_dict'].get('repo_name')
 
+
 def action_logger(user, action, repo, ipaddr='', sa=None):
     """
     Action logger for various actions made by users
@@ -113,7 +116,6 b' def action_logger(user, action, repo, ip'
         else:
             raise Exception('You have to provide user object or username')
 
-
         rm = RepoModel()
         if hasattr(repo, 'repo_id'):
             repo_obj = rm.get(repo.repo_id, cache=False)
@@ -124,7 +126,6 b' def action_logger(user, action, repo, ip'
         else:
             raise Exception('You have to provide repository to action logger')
 
-
         user_log = UserLog()
         user_log.user_id = user_obj.user_id
         user_log.action = action
@@ -142,6 +143,7 b' def action_logger(user, action, repo, ip'
         log.error(traceback.format_exc())
         sa.rollback()
 
+
 def get_repos(path, recursive=False):
     """
     Scans given path for repos and return (name,(type,path)) tuple
@@ -178,6 +180,7 b' def get_repos(path, recursive=False):'
 
     return _get_repos(path)
 
+
 def check_repo_fast(repo_name, base_path):
     """
     Check given path for existence of directory
@@ -186,9 +189,11 b' def check_repo_fast(repo_name, base_path'
 
     :return False: if this directory is present
     """
-    if os.path.isdir(os.path.join(base_path, repo_name)):return False
+    if os.path.isdir(os.path.join(base_path, repo_name)):
+        return False
     return True
 
+
 def check_repo(repo_name, base_path, verify=True):
 
     repo_path = os.path.join(base_path, repo_name)
@@ -207,13 +212,17 b' def check_repo(repo_name, base_path, ver'
         log.info('%s repo is free for creation', repo_name)
         return True
 
+
 def ask_ok(prompt, retries=4, complaint='Yes or no, please!'):
     while True:
         ok = raw_input(prompt)
-        if ok in ('y', 'ye', 'yes'): return True
-        if ok in ('n', 'no', 'nop', 'nope'): return False
+        if ok in ('y', 'ye', 'yes'):
+            return True
+        if ok in ('n', 'no', 'nop', 'nope'):
+            return False
         retries = retries - 1
-        if retries < 0: raise IOError
+        if retries < 0:
+            raise IOError
         print complaint
 
 #propagated from mercurial documentation
@@ -228,6 +237,7 b" ui_sections = ['alias', 'auth',"
                 'server', 'trusted',
                 'ui', 'web', ]
 
+
 def make_ui(read_from='file', path=None, checkpaths=True):
     """A function that will read python rc files or database
     and make an mercurial ui object from read options
@@ -256,7 +266,6 b" def make_ui(read_from='file', path=None,"
                 log.debug('settings ui from file[%s]%s:%s', section, k, v)
                 baseui.setconfig(section, k, v)
 
-
     elif read_from == 'db':
         sa = meta.Session()
         ret = sa.query(RhodeCodeUi)\
@@ -285,6 +294,7 b' def set_rhodecode_config(config):'
     for k, v in hgsettings.items():
         config[k] = v
 
+
 def invalidate_cache(cache_key, *args):
     """Puts cache invalidation task into db for
     further global cache invalidation
@@ -296,18 +306,20 b' def invalidate_cache(cache_key, *args):'
         name = cache_key.split('get_repo_cached_')[-1]
         ScmModel().mark_for_invalidation(name)
 
+
 class EmptyChangeset(BaseChangeset):
     """
     An dummy empty changeset. It's possible to pass hash when creating
     an EmptyChangeset
     """
 
-    def __init__(self, cs='0' * 40):
+    def __init__(self, cs='0' * 40, repo=None):
         self._empty_cs = cs
         self.revision = -1
         self.message = ''
         self.author = ''
         self.date = ''
+        self.repository = repo
 
     @LazyProperty
     def raw_id(self):
@@ -330,6 +342,7 b' class EmptyChangeset(BaseChangeset):'
     def get_file_size(self, path):
         return 0
 
+
 def map_groups(groups):
     """Checks for groups existence, and creates groups structures.
     It returns last group in structure
@@ -352,6 +365,7 b' def map_groups(groups):'
 
     return group
 
+
 def repo2db_mapper(initial_repo_list, remove_obsolete=False):
     """maps all repos given in initial_repo_list, non existing repositories
     are created, if remove_obsolete is True it also check for db entries
@@ -391,6 +405,8 b' def repo2db_mapper(initial_repo_list, re'
                 sa.commit()
 
     return added, removed
+
+
 class OrderedDict(dict, DictMixin):
 
     def __init__(self, *args, **kwds):
@@ -518,6 +534,7 b' def add_cache(settings):'
                                                              'memory')
             beaker.cache.cache_regions[region] = region_settings
 
+
 def get_current_revision():
     """Returns tuple of (number, id) from repository containing this package
     or None if repository could not be found.
@@ -537,9 +554,10 b' def get_current_revision():'
                       "was: %s" % err)
         return None
 
-#===============================================================================
+
+#==============================================================================
 # TEST FUNCTIONS AND CREATORS
-#===============================================================================
+#==============================================================================
 def create_test_index(repo_location, full_index):
     """Makes default test index
     :param repo_location:
@@ -562,6 +580,7 b' def create_test_index(repo_location, ful'
     except LockHeld:
         pass
 
+
 def create_test_env(repos_test_path, config):
     """Makes a fresh database and
     install test repository into tmp dir
@@ -582,7 +601,8 b' def create_test_env(repos_test_path, con'
     ch.setLevel(logging.DEBUG)
 
     # create formatter
-    formatter = logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")
+    formatter = logging.Formatter("%(asctime)s - %(name)s -"
+                                  " %(levelname)s - %(message)s")
 
     # add formatter to ch
     ch.setFormatter(formatter)
@@ -619,10 +639,10 b' def create_test_env(repos_test_path, con'
     tar.extractall(jn(TESTS_TMP_PATH, HG_REPO))
     tar.close()
 
+
 #==============================================================================
 # PASTER COMMANDS
 #==============================================================================
-
 class BasePasterCommand(Command):
     """
     Abstract Base Class for paster commands.
@@ -649,7 +669,6 b' class BasePasterCommand(Command):'
         if log and isinstance(log, logging):
             log(msg)
 
-
     def run(self, args):
         """
         Overrides Command.run

setup.py

@@ -21,6 +21,7 b' requirements = ['
         "celery>=2.2.5",
         "babel",
         "python-dateutil>=1.5.0,<2.0.0",
+        "dulwich>=0.7.0"
     ]
 
 classifiers = ['Development Status :: 4 - Beta',