repos: cleannup and fix landing-ref code.

with latest git update this exposed a bug when we allowed to set references like tip for git repos
now the defaults are loaded from a single place controlled by default branch for git.

Repos without master are now working just fine with new git and new logic.

rhodecode/api/tests/test_update_repo.py

@@ -22,6 +22,7 b' import mock'
 import pytest
 
 from rhodecode.model.repo import RepoModel
+from rhodecode.model.scm import ScmModel
 from rhodecode.tests import TEST_USER_ADMIN_LOGIN, TEST_USER_REGULAR_LOGIN
 from rhodecode.api.tests.utils import (
     build_data, api_call, assert_error, assert_ok, crash, jsonify)
@@ -65,8 +66,8 b' class TestApiUpdateRepo(object):'
         ({'push_uri': 'http://example.com/repo_push'},
          {'push_uri': 'http://example.com/repo_push'}),
 
-        ({'landing_rev': 'rev:tip'},
-         {'landing_rev': ['rev', 'tip']}),
+        ({'landing_rev': None},  # auto-updated based on type of repo
+         {'landing_rev': [None, None]}),
 
         ({'enable_statistics': True},
          SAME_AS_UPDATES),
@@ -97,6 +98,12 b' class TestApiUpdateRepo(object):'
         if updates.get('_group'):
             fixture.create_repo_group(updates['_group'])
 
+        if 'landing_rev' in updates:
+            default_landing_ref, _lbl = ScmModel.backend_landing_ref(backend.alias)
+            _type, _name = default_landing_ref.split(':')
+            updates['landing_rev'] = default_landing_ref
+            expected['landing_rev'] = [_type, _name]
+
         expected_api_data = repo.get_api_data(include_secrets=True)
         if expected is SAME_AS_UPDATES:
             expected_api_data.update(updates)

rhodecode/lib/vcs/backends/git/repository.py

@@ -55,6 +55,7 b' class GitRepository(BaseRepository):'
     Git repository backend.
     """
     DEFAULT_BRANCH_NAME = os.environ.get('GIT_DEFAULT_BRANCH_NAME') or 'master'
+    DEFAULT_REF = 'branch:{}'.format(DEFAULT_BRANCH_NAME)
 
     contact = BaseRepository.DEFAULT_CONTACT
 

rhodecode/model/repo.py

@@ -497,7 +497,7 b' class RepoModel(BaseModel):'
 
     def _create_repo(self, repo_name, repo_type, description, owner,
                      private=False, clone_uri=None, repo_group=None,
-                     landing_rev='rev:tip', fork_of=None,
+                     landing_rev=None, fork_of=None,
                      copy_fork_permissions=False, enable_statistics=False,
                      enable_locking=False, enable_downloads=False,
                      copy_group_permissions=False,
@@ -512,6 +512,8 b' class RepoModel(BaseModel):'
         owner = self._get_user(owner)
         fork_of = self._get_repo(fork_of)
         repo_group = self._get_repo_group(safe_int(repo_group))
+        default_landing_ref, _lbl = ScmModel.backend_landing_ref(repo_type)
+        landing_rev = landing_rev or default_landing_ref
 
         try:
             repo_name = safe_unicode(repo_name)

rhodecode/model/scm.py

@@ -966,6 +966,8 b' class ScmModel(BaseModel):'
 
         :param repo:
         """
+        from rhodecode.lib.vcs.backends.git import GitRepository
+
         _ = translator
         repo = self._get_repo(repo)
 
@@ -984,12 +986,13 b' class ScmModel(BaseModel):'
         ]
 
         if not repo:
+            # presented at NEW repo creation
             return default_choices, default_ref_options
 
         repo = repo.scm_instance()
 
-        ref_options = [('rev:tip', 'latest tip')]
-        choices = ['rev:tip']
+        ref_options = [(default_landing_ref, landing_ref_lbl)]
+        choices = [default_landing_ref]
 
         # branches
         branch_group = [(u'branch:%s' % safe_unicode(b), safe_unicode(b)) for b in repo.branches]

rhodecode/model/validation_schema/schemas/repo_schema.py

@@ -26,11 +26,6 b' from rhodecode.model.validation_schema.u'
 from rhodecode.model.validation_schema import validators, preparers, types
 
 DEFAULT_LANDING_REF = 'rev:tip'
-DEFAULT_BACKEND_LANDING_REF = {
-    'hg': 'branch:default',
-    'git': 'branch:master',
-    'svn': 'rev:tip',
-}
 
 
 def get_group_and_repo(repo_name):
@@ -80,12 +75,13 b' def deferred_sync_uri_validator(node, kw'
 
 @colander.deferred
 def deferred_landing_ref_widget(node, kw):
+    from rhodecode.model.scm import ScmModel
+
     repo_type = kw.get('repo_type')
     default_opts = []
     if repo_type:
-        default_opts.append(
-            (DEFAULT_BACKEND_LANDING_REF[repo_type],
-             DEFAULT_BACKEND_LANDING_REF[repo_type]))
+        default_landing_ref, _lbl = ScmModel.backend_landing_ref(repo_type)
+        default_opts.append((default_landing_ref, default_landing_ref))
 
     items = kw.get('repo_ref_items', default_opts)
     items = convert_to_optgroup(items)

rhodecode/tests/fixture.py

@@ -39,6 +39,7 b' from rhodecode.model.repo_group import R'
 from rhodecode.model.user_group import UserGroupModel
 from rhodecode.model.gist import GistModel
 from rhodecode.model.auth_token import AuthTokenModel
+from rhodecode.model.scm import ScmModel
 from rhodecode.authentication.plugins.auth_rhodecode import \
     RhodeCodeAuthPlugin
 
@@ -190,15 +191,19 b' class Fixture(object):'
         return context()
 
     def _get_repo_create_params(self, **custom):
+        repo_type = custom.get('repo_type') or 'hg'
+
+        default_landing_ref, landing_ref_lbl = ScmModel.backend_landing_ref(repo_type)
+
         defs = {
             'repo_name': None,
-            'repo_type': 'hg',
+            'repo_type': repo_type,
             'clone_uri': '',
             'push_uri': '',
             'repo_group': '-1',
             'repo_description': 'DESC',
             'repo_private': False,
-            'repo_landing_rev': 'rev:tip',
+            'repo_landing_commit_ref': default_landing_ref,
             'repo_copy_permissions': False,
             'repo_state': Repository.STATE_CREATED,
         }
@@ -279,14 +284,16 b' class Fixture(object):'
     def create_fork(self, repo_to_fork, fork_name, **kwargs):
         repo_to_fork = Repository.get_by_repo_name(repo_to_fork)
 
-        form_data = self._get_repo_create_params(repo_name=fork_name,
+        form_data = self._get_repo_create_params(
+            repo_name=fork_name,
                                             fork_parent_id=repo_to_fork.repo_id,
                                             repo_type=repo_to_fork.repo_type,
                                             **kwargs)
+
         #TODO: fix it !!
         form_data['description'] = form_data['repo_description']
         form_data['private'] = form_data['repo_private']
-        form_data['landing_rev'] = form_data['repo_landing_rev']
+        form_data['landing_rev'] = form_data['repo_landing_commit_ref']
 
         owner = kwargs.get('cur_user', TEST_USER_ADMIN_LOGIN)
         RepoModel().create_fork(form_data, cur_user=owner)