Extract BlobHelper mixin

lib/linguist.rb

@@ -2,6 +2,7 @@ module Linguist
 end
 
 require 'linguist/blob'
+require 'linguist/blob_helper'
 require 'linguist/language'
 require 'linguist/mime'
 require 'linguist/pathname'

lib/linguist/blob.rb

@@ -1,11 +1,9 @@
-require 'linguist/language'
-require 'linguist/mime'
-require 'linguist/pathname'
-
-require 'escape_utils'
+require 'linguist/blob_helper'
 
 module Linguist
   class Blob
+    include BlobHelper
+
     def initialize(blob)
       @blob = blob
     end
@@ -14,134 +12,12 @@ module Linguist
       @blob.name
     end
 
-    def pathname
-      Pathname.new(name || "")
-    end
-
-    def mime_type
-      Mime.lookup(pathname.extname)
-    end
-
-    def disposition
-      case mime_type
-      when 'application/octet-stream', 'application/java-archive'
-        "attachment; filename=#{EscapeUtils.escape_url(pathname.basename)}"
-      else
-        'inline'
-      end
-    end
-
     def data
       @blob.data
     end
 
-    def lines
-      @lines ||= data ? data.split("\n", -1) : []
-    end
-
     def size
       @blob.size
     end
-
-    def loc
-      lines.size
-    end
-
-    def sloc
-      lines.grep(/\S/).size
-    end
-
-    def submodule?
-      defined?(Grit::Submodule) && @blob.kind_of?(Grit::Submodule)
-    end
-
-    def binary?
-      mime_type == 'octet-stream' || !(text? || image?)
-    end
-
-    def file?
-      image? || binary?
-    end
-
-    def text?
-      return false if submodule?
-
-      pathname.media_type == 'text' ||
-        pathname.mime_type == 'application/json'
-    end
-
-    def image?
-      ['.png', '.jpg', '.jpeg', '.gif'].include?(pathname.extname)
-    end
-
-    MEGABYTE = 1024 * 1024
-
-    def large?
-      size.to_i > MEGABYTE
-    end
-
-    def viewable?
-      !file? && !large?
-    end
-
-    def language
-      if text?
-        shebang_language || pathname.language
-      else
-        Language['Text']
-      end
-    end
-
-    def lexer
-      language.lexer
-    end
-
-    def shebang_script
-      return if !text? || large?
-
-      if (match = data.match(/(.+)\n?/)) && (bang = match[0]) =~ /^#!/
-        bang.sub!(/^#! /, '#!')
-        tokens = bang.split(' ')
-        pieces = tokens.first.split('/')
-        if pieces.size > 1
-          script = pieces.last
-        else
-          script = pieces.first.sub('#!', '')
-        end
-
-        script = script == 'env' ? tokens[1] : script
-
-        # python2.4 => python
-        if script =~ /((?:\d+\.?)+)/
-          script.sub! $1, ''
-        end
-
-        script
-      end
-    end
-
-    def shebang_language
-      if script = shebang_script
-        case script
-        when 'bash'
-          Language['Shell']
-        when 'groovy'
-          Language['Java']
-        when 'macruby'
-          Language['Ruby']
-        when 'node'
-          Language['JavaScript']
-        when 'rake'
-          Language['Ruby']
-        when 'sh'
-          Language['Shell']
-        when 'zsh'
-          Language['Shell']
-        else
-          lang = Language.find_by_lexer(shebang_script)
-          lang != Language['Text'] ? lang : nil
-        end
-      end
-    end
   end
 end

lib/linguist/blob_helper.rb

@@ -0,0 +1,125 @@
+require 'linguist/language'
+require 'linguist/mime'
+require 'linguist/pathname'
+
+require 'escape_utils'
+
+module Linguist
+  module BlobHelper
+    def pathname
+      Pathname.new(name || "")
+    end
+
+    def mime_type
+      @mime_type ||= Mime.lookup(pathname.extname)
+    end
+
+    def disposition
+      case mime_type
+      when 'application/octet-stream', 'application/java-archive'
+        "attachment; filename=#{EscapeUtils.escape_url(pathname.basename)}"
+      else
+        'inline'
+      end
+    end
+
+    def lines
+      @lines ||= data ? data.split("\n", -1) : []
+    end
+
+    def loc
+      lines.size
+    end
+
+    def sloc
+      lines.grep(/\S/).size
+    end
+
+    def binary?
+      mime_type == 'octet-stream' || !(text? || image?)
+    end
+
+    def file?
+      image? || binary?
+    end
+
+    def text?
+      pathname.media_type == 'text' ||
+        pathname.mime_type == 'application/json'
+    end
+
+    def image?
+      ['.png', '.jpg', '.jpeg', '.gif'].include?(pathname.extname)
+    end
+
+    MEGABYTE = 1024 * 1024
+
+    def large?
+      size.to_i > MEGABYTE
+    end
+
+    def viewable?
+      !file? && !large?
+    end
+
+    def language
+      if text?
+        shebang_language || pathname.language
+      else
+        Language['Text']
+      end
+    end
+
+    def lexer
+      language.lexer
+    end
+
+    def shebang_script
+      return if !text? || large?
+
+      if (match = data.match(/(.+)\n?/)) && (bang = match[0]) =~ /^#!/
+        bang.sub!(/^#! /, '#!')
+        tokens = bang.split(' ')
+        pieces = tokens.first.split('/')
+        if pieces.size > 1
+          script = pieces.last
+        else
+          script = pieces.first.sub('#!', '')
+        end
+
+        script = script == 'env' ? tokens[1] : script
+
+        # python2.4 => python
+        if script =~ /((?:\d+\.?)+)/
+          script.sub! $1, ''
+        end
+
+        script
+      end
+    end
+
+    def shebang_language
+      if script = shebang_script
+        case script
+        when 'bash'
+          Language['Shell']
+        when 'groovy'
+          Language['Java']
+        when 'macruby'
+          Language['Ruby']
+        when 'node'
+          Language['JavaScript']
+        when 'rake'
+          Language['Ruby']
+        when 'sh'
+          Language['Shell']
+        when 'zsh'
+          Language['Shell']
+        else
+          lang = Language.find_by_lexer(shebang_script)
+          lang != Language['Text'] ? lang : nil
+        end
+      end
+    end
+  end
+end