Change search to use a set of queries for repo lookup rather than a single monolithic query, in the hopes that this will make things significantly faster and actually useable. The individual queries have been tested by hand on MySQL, but the real test will be staging

endpoints/api/search.py

@@ -3,7 +3,7 @@ from endpoints.api import (ApiResource, parse_args, query_param, truthy_bool, ni
 from data import model
 from auth.permissions import (OrganizationMemberPermission, ViewTeamPermission,
                               ReadRepositoryPermission, UserAdminPermission,
-                              AdministerOrganizationPermission)
+                              AdministerOrganizationPermission, ReadRepositoryPermission)
 from auth.auth_context import get_authenticated_user
 from auth import scopes
 from app import avatar, get_app_url
@@ -205,22 +205,29 @@ def conduct_admined_team_search(username, query, encountered_teams, results):
 
 def conduct_repo_search(username, query, results):
   """ Finds matching repositories. """
-  matching_repos = model.get_matching_repositories(query, username, limit=5, pull_count_sort=True)
+  def can_read(repository):
+    if repository.is_public:
+      return True
+
+    return ReadRepositoryPermission(repository.namespace_user.username, repository.name).can()
+
+  only_public = username is None
+  matching_repos = model.get_sorted_matching_repositories(query, only_public, can_read, limit=5)
 
   for repo in matching_repos:
     repo_score = math.log(repo.count or 1, 10) or 1
 
-    # If the repository is under the user's namespace, give it 50% more weight.
+    # If the repository is under the user's namespace, give it 20% more weight.
     namespace = repo.namespace_user.username
     if OrganizationMemberPermission(namespace).can() or namespace == username:
-      repo_score = repo_score * 1.5
+      repo_score = repo_score * 1.2
 
     results.append({
       'kind': 'repository',
       'namespace': search_entity_view(username, repo.namespace_user),
       'name': repo.name,
       'description': repo.description,
-      'is_public': repo.visibility.name == 'public',
+      'is_public': repo.is_public,
       'score': repo_score,
       'href': '/repository/' + repo.namespace_user.username + '/' + repo.name
     })