1 files changed, 10 insertions, 0 deletions
diff --git a/app/lib/incommon.rb b/app/lib/incommon.rb
index 091f022..c2f30b5 100644
--- a/app/lib/incommon.rb
+++ b/app/lib/incommon.rb
@@ -3,4 +3,14 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
 module INCOMMON
+  module_function
+  def repo_url(version)
+    case version
+    when /^(HEAD|v\d)/
+      query="h=#{version}"
+    else
+      query="h=HEAD&id=#{version}"
+    end
+    URI.parse("https://code.cepheide.org/incommon-map.git/tree/?#{query}").to_s
+  end
 end