From da5bc18d6493a5ec4ea7542cf01140663d6aa9f5 Mon Sep 17 00:00:00 2001
From: Paul Handly <ph@weplaydots.com>
Date: Sat, 9 May 2015 13:38:42 -0400
Subject: [PATCH] Add Unity3D Metadata files as generated

---
 lib/linguist/generated.rb           | 14 ++++++++++++++
 lib/linguist/languages.yml          |  8 ++++++++
 samples/Unity3D Metadata/Tiles.meta |  5 +++++
 test/test_blob.rb                   |  3 +++
 4 files changed, 30 insertions(+)
 create mode 100644 samples/Unity3D Metadata/Tiles.meta

diff --git a/lib/linguist/generated.rb b/lib/linguist/generated.rb
index 12987196..ccbaba85 100644
--- a/lib/linguist/generated.rb
+++ b/lib/linguist/generated.rb
@@ -68,6 +68,7 @@ module Linguist
       generated_protocol_buffer_go? ||
       generated_protocol_buffer? ||
       generated_jni_header? ||
+      generated_unity3d_meta? ||
       vcr_cassette?
     end
 
@@ -311,5 +312,18 @@ module Linguist
       return false unless lines.count > 1
       return lines[0].include?("Generated by Cython")
     end
+
+    # Internal: Is this a metadata file from Unity3D?
+    #
+    # Unity3D Meta files start with:
+    #   fileFormatVersion: X
+    #   guid: XXXXXXXXXXXXXXX
+    #
+    # Return true or false
+    def generated_unity3d_meta?
+      return false unless extname == '.meta'
+      return false unless lines.count > 1
+      return lines[0].include?("fileFormatVersion: ")
+    end
   end
 end
diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 5066b4d9..b420dfb2 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -3299,6 +3299,14 @@ Unity3D Asset:
   - .unity
   tm_scope: source.yaml
 
+Unity3D Metadata:
+  type: data
+  ace_mode: yaml
+  color: "#36093d"
+  extensions:
+  - .meta
+  tm_scope: source.yaml
+
 UnrealScript:
   type: programming
   color: "#a54c4d"
diff --git a/samples/Unity3D Metadata/Tiles.meta b/samples/Unity3D Metadata/Tiles.meta
new file mode 100644
index 00000000..61ec47d5
--- /dev/null
+++ b/samples/Unity3D Metadata/Tiles.meta	
@@ -0,0 +1,5 @@
+fileFormatVersion: 2
+guid: 9e5c401e9d1d5415fbf2854b29c004c4
+folderAsset: yes
+DefaultImporter:
+  userData: 
diff --git a/test/test_blob.rb b/test/test_blob.rb
index 138eef8e..5eac1ba4 100644
--- a/test/test_blob.rb
+++ b/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?
+
+    # Unity3D-generated metadata
+    assert sample_blob("Unity3D Metadata/Tiles.meta").generated?
   end
 
   def test_vendored