Licence also accepted as license file

CHANGELOG

@@ -32,7 +32,7 @@ v 8.2.0 (unreleased)
   - Fix incoming email config defaults
   - MR target branch is now visible on a list view when it is different from project's default one
   - Improve Continuous Integration graphs page
-  - Accept COPYING as licence file (Zeger-Jan van de Weg)
+  - Accept COPYING,COPYING.lesser, and licence as license file (Zeger-Jan van de Weg)
 
 v 8.1.4
   - Fix bug where manually merged branches in a MR would end up with an empty diff (Stan Hu)

app/models/repository.rb

@@ -244,16 +244,24 @@ class Repository
   def license
     cache.fetch(:license) do
       licenses =  tree(:head).blobs.find_all do |file|
-                    file.name =~ /\A(copying|license)/i
+                    file.name =~ /\A(copying|license|licence)/i
                   end
 
-      # If `licence`, `copying` and `copying.lesser` are found, return in the
-      # following order: licence, copying, copying.lesser
-      regex = [/\Alicense(\..*)?\z/i, /\Acopying(\..{0,3})?\z/i, /\Acopying.lesser/i]
+      preferences = [
+        /\Alicen[sc]e\z/i,        # LICENSE, LICENCE
+        /\Alicen[sc]e\./i,        # LICENSE.md, LICENSE.txt
+        /\Acopying\z/i,           # COPYING
+        /\Acopying\.(?!lesser)/i, # COPYING.txt
+        /Acopying.lesser/i        # COPYING.LESSER
+      ]
+
+      license = nil
+      preferences.each do |r|
+        license = licenses.find { |l| l.name =~ r }
+        break if license
+      end
 
-      regex.map do |re|
-        licenses.find { |l| l.name =~ re }
-      end.compact.first
+      license
     end
   end
 

spec/models/repository_spec.rb

@@ -102,13 +102,22 @@ describe Repository do
   end
 
   describe "#license" do
-    it 'test selection preference' do
+    before do
       repository.send(:cache).expire(:license)
       TestBlob = Struct.new(:name)
+    end
+
+    it 'test selection preference' do
       files = [TestBlob.new('file'), TestBlob.new('license'), TestBlob.new('copying')]
       expect(repository.tree).to receive(:blobs).and_return(files)
 
       expect(repository.license.name).to eq('license')
     end
+
+    it 'also accepts licence instead of license' do
+      expect(repository.tree).to receive(:blobs).and_return([TestBlob.new('licence')])
+
+      expect(repository.license.name).to eq('licence')
+    end
   end
 end