Add Blob#disposition

lib/linguist/blob.rb

@@ -1,6 +1,8 @@
 require 'linguist/mime'
 require 'linguist/pathname'
 
+require 'escape_utils'
+
 module Linguist
   class Blob
     def initialize(blob)
@@ -18,6 +20,15 @@ module Linguist
       Mime.lookup(name.extname)
     end
 
+    def disposition
+      case mime_type
+      when 'application/octet-stream', 'application/java-archive'
+        "attachment; filename=#{EscapeUtils.escape_url(name.to_s)}"
+      else
+        'inline'
+      end
+    end
+
     def size
       @blob.size
     end

test/test_blob.rb

@@ -39,6 +39,13 @@ class TestBlob < Test::Unit::TestCase
     assert_equal "application/octet-stream", blob("dog.o").mime_type
   end
 
+  def test_disposition
+    assert_equal "attachment; filename=foo.bin", blob("foo.bin").disposition
+    assert_equal "attachment; filename=foo+bar.jar", blob("foo bar.jar").disposition
+    assert_equal "inline", blob("foo.txt").disposition
+    assert_equal "inline", blob("grit.rb").disposition
+  end
+
   def test_data
     assert_equal "module Foo\nend\n", blob("foo.rb").data
   end