From 771b5c22987870c84e0bfa90549af1567cb21117 Mon Sep 17 00:00:00 2001
From: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Date: Mon, 15 Apr 2013 19:33:44 +0300
Subject: [PATCH] Warn user about losing merge request diff

---
 lib/tasks/migrate/migrate_mr.rake | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/tasks/migrate/migrate_mr.rake b/lib/tasks/migrate/migrate_mr.rake
index 6c2312b053..74b1db0344 100644
--- a/lib/tasks/migrate/migrate_mr.rake
+++ b/lib/tasks/migrate/migrate_mr.rake
@@ -1,6 +1,13 @@
 # This taks will reload commits/diff for all merge requests
 desc "GITLAB | Migrate Merge Requests"
 task migrate_merge_requests: :environment do
+  puts "Since 5.1 old merge request serialization logic was replaced with a better one."
+  puts "It makes old merge request diff invalid for GitLab 5.1+"
+  puts "* * *"
+  puts "This will rebuild commits/diffs info for existing merge requests."
+  puts "You will lose merge request diff if its already merged."
+  ask_to_continue
+
   MergeRequest.find_each(batch_size: 20) do |mr|
     mr.st_commits = []
     mr.save
-- 
2.30.9