Use Digest#file if it's available

2014-06-11 12:05:19 -05:00 · 2014-06-11 12:05:19 -05:00 · 93d8e71641
commit 93d8e71641
parent c0e0bd2984
1 changed files with 9 additions and 5 deletions
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@ -244,11 +244,15 @@ class Pathname
    %r[^#!\s*\S+] === open('r') { |f| f.read(1024) }
  end

-  def incremental_hash(hasher)
-    incr_hash = hasher.new
-    buf = ""
-    open('rb') { |f| incr_hash << buf while f.read(1024, buf) }
-    incr_hash.hexdigest
+  def incremental_hash(klass)
+    digest = klass.new
+    if digest.respond_to?(:file)
+      digest.file(self)
+    else
+      buf = ""
+      open("rb") { |f| digest << buf while f.read(1024, buf) }
+    end
+    digest.hexdigest
  end

  def sha1