backporting IO#binread for 1.8 users

1 files changed, 15 insertions, 0 deletions

diff --git a/activesupport/lib/active_support/core_ext/io.rb b/activesupport/lib/active_support/core_ext/io.rb
new file mode 100644
index 0000000000..75f1055191
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/io.rb
@@ -0,0 +1,15 @@
+if RUBY_VERSION < '1.9.2'
+
+# :stopdoc:
+class IO
+  def self.binread(name, length = nil, offset = nil)
+    return File.read name unless length || offset
+    File.open(name, 'rb') { |f|
+      f.seek offset if offset
+      f.read length
+    }
+  end
+end
+# :startdoc:
+
+end