Add Blob

lib/linguist/blob.rb

@@ -0,0 +1,54 @@
+require 'linguist/mime'
+require 'linguist/pathname'
+
+module Linguist
+  class Blob
+    def initialize(blob)
+      @blob = blob
+      @name = Pathname.new(blob.name || "")
+    end
+
+    attr_reader :name
+
+    def data
+      @blob.data
+    end
+
+    def mime_type
+      Mime.lookup(name.extname, @blob.mime_type)
+    end
+
+    def size
+      @blob.size
+    end
+
+    def submodule?
+      defined?(Grit::Submodule) && @blob.kind_of?(Grit::Submodule)
+    end
+
+    def file?
+      image? || !text? || mime_type == 'octet-stream'
+    end
+
+    def text?
+      return false if submodule?
+
+      name.media_type == 'text' ||
+        name.mime_type == 'application/json'
+    end
+
+    def image?
+      ['.png', '.jpg', '.jpeg', '.gif'].include?(name.extname)
+    end
+
+    MEGABYTE = 1024 * 1024
+
+    def large?
+      size.to_i > MEGABYTE
+    end
+
+    def viewable?
+      !file? && !large?
+    end
+  end
+end