1 files changed, 24 insertions, 0 deletions
diff --git a/Library/Homebrew/utils/inreplace.rb b/Library/Homebrew/utils/inreplace.rb
new file mode 100644
index 000000000..4b3cf9587
--- /dev/null
+++ b/Library/Homebrew/utils/inreplace.rb
@@ -0,0 +1,24 @@
+module Utils
+  module Inreplace
+    def inreplace paths, before=nil, after=nil
+      Array(paths).each do |path|
+        f = File.open(path, 'r')
+        s = f.read
+
+        if before.nil? && after.nil?
+          s.extend(StringInreplaceExtension)
+          yield s
+        else
+          sub = s.gsub!(before, after)
+          if sub.nil?
+            opoo "inreplace in '#{path}' failed"
+            puts "Expected replacement of '#{before}' with '#{after}'"
+          end
+        end
+
+        f.reopen(path, 'w').write(s)
+        f.close
+      end
+    end
+  end
+end