From 87d19300e3394192d6872243ba8939f2e7ce1ec9 Mon Sep 17 00:00:00 2001
From: Marin Jankovski <maxlazio@gmail.com>
Date: Wed, 27 Feb 2019 14:39:31 +0100
Subject: Set specific reviewers for single codebase effort

This extends Danger so it informs MR authors that single codebase merge
requests need to be approved by a specific group of engineers.

Co-authored-by: Yorick Peterse <yorickpeterse@gmail.com>
---
 danger/single_codebase/Dangerfile | 56 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 danger/single_codebase/Dangerfile

(limited to 'danger/single_codebase')

diff --git a/danger/single_codebase/Dangerfile b/danger/single_codebase/Dangerfile
new file mode 100644
index 00000000000..a5938cd6783
--- /dev/null
+++ b/danger/single_codebase/Dangerfile
@@ -0,0 +1,56 @@
+def mention_single_codebase_approvers
+  frontend_maintainers = %w(@filipa @iamphill)
+  backend_maintainers = %w(@rspeicher @rymai @yorickpeterse @godfat)
+
+  rows = []
+  users = []
+
+  if gitlab.mr_labels.include?('frontend')
+    frontend_maintainer = frontend_maintainers.sample
+
+    rows << "| ~frontend | `#{frontend_maintainer}`"
+    users << frontend_maintainer
+  end
+
+  if gitlab.mr_labels.include?('backend')
+    backend_maintainer = backend_maintainers.sample
+
+    rows << "| ~backend | `#{backend_maintainer}`"
+    users << backend_maintainer
+  end
+
+  if rows.empty?
+    backup_maintainer = backend_maintainers.sample
+
+    rows << "| ~frontend / ~backend | `#{backup_maintainer}`"
+    users << backup_maintainer
+  end
+
+  markdown(<<~MARKDOWN.strip)
+    ## Single codebase changes
+
+    This merge request contains changes related to the work of moving towards a
+    [single codebase](https://gitlab.com/groups/gitlab-org/-/epics/802) for
+    Community Edition and Enterprise Edition. These changes will need to be
+    reviewed and approved by the following engineers:
+
+    | Category | Reviewer
+    |----------|---------
+    #{rows.join("\n")}
+
+    To make sure this happens, please follow these steps:
+
+    1. Add all of the mentioned users to the list of merge request approvals.
+    2. Assign the merge request to the first person in the above list.
+
+    If you are a reviewer, please follow these steps:
+
+    1. Review the merge request. If it is good to go, approve it.
+    2. Once approved, assign to the next person in the above list. If you are
+       the last person in the list, merge the merge request.
+  MARKDOWN
+end
+
+if gitlab.mr_labels.include?('single codebase')
+  mention_single_codebase_approvers
+end
-- 
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