Redirect issue if repo has configured external tracker. (#9247)

* Redirect issue if repo has configured external tracker.

* Handle error

* Add tests for redirect

* Fix test consistency

models/fixtures/issue.yml

@@ -97,3 +97,15 @@
   is_pull: true
   created_unix: 946684820
   updated_unix: 978307180
+
+-
+  id: 9
+  repo_id: 48
+  index: 1
+  poster_id: 11
+  name: pr1
+  content: a pull request
+  is_closed: false
+  is_pull: true
+  created_unix: 946684820
+  updated_unix: 978307180

models/fixtures/pull_request.yml

@@ -36,4 +36,17 @@
   head_branch: branch2
   base_branch: master
   merge_base: 0abcb056019adb83
+  has_merged: false
+
+-
+  id: 4
+  type: 0 # gitea pull request
+  status: 2 # mergable
+  issue_id: 9
+  index: 1
+  head_repo_id: 48
+  base_repo_id: 48
+  head_branch: branch1
+  base_branch: master
+  merge_base: abcdef1234567890
   has_merged: false

models/fixtures/repo_unit.yml

@@ -452,3 +452,24 @@
   type: 1
   config: "{}"
   created_unix: 946684810
+
+-
+  id: 66
+  repo_id: 46
+  type: 7
+  config: "{\"ExternalTrackerURL\":\"https://tracker.com\",\"ExternalTrackerFormat\":\"https://tracker.com/{user}/{repo}/issues/{index}\",\"ExternalTrackerStyle\":\"\"}"
+  created_unix: 946684810
+
+-
+  id: 67
+  repo_id: 47
+  type: 7
+  config: "{\"ExternalTrackerURL\":\"https://tracker.com\",\"ExternalTrackerFormat\":\"https://tracker.com/{user}/{repo}/issues/{index}\",\"ExternalTrackerStyle\":\"numeric\"}"
+  created_unix: 946684810
+
+-
+  id: 68
+  repo_id: 48
+  type: 7
+  config: "{\"ExternalTrackerURL\":\"https://tracker.com\",\"ExternalTrackerFormat\":\"https://tracker.com/{user}/{repo}/issues/{index}\",\"ExternalTrackerStyle\":\"alphanumeric\"}"
+  created_unix: 946684810

models/fixtures/repository.yml

@@ -587,3 +587,40 @@
   num_issues: 0
   is_mirror: false
   status: 0
+
+- 
+  id: 46
+  owner_id: 26
+  lower_name: repo_external_tracker
+  name: repo_external_tracker
+  is_private: false
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  is_mirror: false
+  status: 0
+
+- 
+  id: 47
+  owner_id: 26
+  lower_name: repo_external_tracker_numeric
+  name: repo_external_tracker_numeric
+  is_private: false
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  is_mirror: false
+  status: 0
+
+- 
+  id: 48
+  owner_id: 26
+  lower_name: repo_external_tracker_alpha
+  name: repo_external_tracker_alpha
+  is_private: false
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_pulls: 1
+  is_mirror: false
+  status: 0

models/fixtures/user.yml

@@ -424,7 +424,7 @@
   is_admin: false
   avatar: avatar26
   avatar_email: org26@example.com
-  num_repos: 1
+  num_repos: 4
   num_members: 0
   num_teams: 1
   repo_admin_change_team_access: true

models/repo_list_test.go

@@ -175,10 +175,10 @@ func TestSearchRepository(t *testing.T) {
 			count: 14},
 		{name: "AllPublic/PublicRepositoriesOfUserIncludingCollaborative",
 			opts:  &SearchRepoOptions{Page: 1, PageSize: 10, OwnerID: 15, AllPublic: true, Template: util.OptionalBoolFalse},
-			count: 22},
+			count: 25},
 		{name: "AllPublic/PublicAndPrivateRepositoriesOfUserIncludingCollaborative",
 			opts:  &SearchRepoOptions{Page: 1, PageSize: 10, OwnerID: 15, Private: true, AllPublic: true, Template: util.OptionalBoolFalse},
-			count: 28},
+			count: 31},
 		{name: "AllPublic/PublicAndPrivateRepositoriesOfUserIncludingCollaborativeByName",
 			opts:  &SearchRepoOptions{Keyword: "test", Page: 1, PageSize: 10, OwnerID: 15, Private: true, AllPublic: true},
 			count: 15},
@@ -187,7 +187,7 @@ func TestSearchRepository(t *testing.T) {
 			count: 13},
 		{name: "AllPublic/PublicRepositoriesOfOrganization",
 			opts:  &SearchRepoOptions{Page: 1, PageSize: 10, OwnerID: 17, AllPublic: true, Collaborate: util.OptionalBoolFalse, Template: util.OptionalBoolFalse},
-			count: 22},
+			count: 25},
 		{name: "AllTemplates",
 			opts:  &SearchRepoOptions{Page: 1, PageSize: 10, Template: util.OptionalBoolTrue},
 			count: 2},