Detect KiCAD module files as generated

lib/linguist/generated.rb

@@ -68,7 +68,8 @@ module Linguist
       generated_protocol_buffer_go? ||
       generated_protocol_buffer? ||
       generated_jni_header? ||
-      vcr_cassette?
+      vcr_cassette? ||
+      generated_kicad_module?
     end
 
     # Internal: Is the blob an Xcode file?
@@ -311,5 +312,18 @@ module Linguist
       return false unless lines.count > 1
       return lines[0].include?("Generated by Cython")
     end
+
+    # Internal: Is it a KiCAD module file?
+    #
+    # KiCAD module files contain:
+    # PCBNEW-LibModule-V1  yyyy-mm-dd h:mm:ss XM
+    # on the first line.
+    #
+    # Return true of false
+    def generated_kicad_module?
+      return false unless extname == '.mod'
+      return false unless lines.count > 1
+      return lines[0].include?("PCBNEW-LibModule-V")
+    end
   end
 end

test/fixtures/Generated/ABM8G.mod

@@ -0,0 +1,50 @@
+PCBNEW-LibModule-V1  Wed 10 Aug 2011 05:57:27 PM COT
+# encoding utf-8
+$INDEX
+ABM8G
+$EndINDEX
+$MODULE ABM8G
+Po 0 0 0 15 4E430CBD 4E430CC5 ~~
+Li ABM8G
+Sc 4E430CC5
+AR 
+Op 0 0 0
+T0 591 -1378 354 354 0 39 N V 21 N "ABM8G"
+T1 0 787 354 354 0 39 N V 21 N "VAL**"
+DS -591 394 1299 394 79 21
+DS 1299 394 1299 -1063 79 21
+DS 1299 -1063 -472 -1063 79 21
+DS -472 -1063 -472 472 79 21
+DS -472 472 -472 551 79 21
+DS -472 551 -591 551 79 21
+DS -591 551 -591 433 79 21
+$PAD
+Sh "1" R 551 472 0 0 0
+Dr 0 0 0
+At SMD N 00888000
+Ne 0 ""
+Po 0 0
+$EndPAD
+$PAD
+Sh "2" R 551 472 0 0 0
+Dr 0 0 0
+At SMD N 00888000
+Ne 0 ""
+Po 866 0
+$EndPAD
+$PAD
+Sh "3" R 551 472 0 0 0
+Dr 0 0 0
+At SMD N 00888000
+Ne 0 ""
+Po 866 -669
+$EndPAD
+$PAD
+Sh "4" R 551 472 0 0 0
+Dr 0 0 0
+At SMD N 00888000
+Ne 0 ""
+Po 0 -669
+$EndPAD
+$EndMODULE  ABM8G
+$EndLIBRARY

test/test_blob.rb

@@ -243,6 +243,9 @@ class TestBlob < Minitest::Test
     # Cython-generated C/C++
     assert sample_blob("C/sgd_fast.c").generated?
     assert sample_blob("C++/wrapper_inner.cpp").generated?
+
+    # KiCAD module files
+    assert fixture_blob("Generated/ABM8G.mod").generated?
   end
 
   def test_vendored
@@ -536,6 +539,8 @@ class TestBlob < Minitest::Test
         blob = fixture_blob(filepath)
         if language == 'Data'
           assert blob.language.nil?, "A language was found for #{filepath}"
+        elsif language == 'Generated'
+          assert blob.generated?, "#{filepath} is not a generated file"
         else
           assert blob.language, "No language for #{filepath}"
           assert_equal language, blob.language.name, blob.name