1 files changed, 36 insertions, 0 deletions
diff --git a/Library/Homebrew/metafiles.rb b/Library/Homebrew/metafiles.rb
new file mode 100644
index 000000000..f73cb36fa
--- /dev/null
+++ b/Library/Homebrew/metafiles.rb
@@ -0,0 +1,36 @@
+class Metafiles
+
+  def initialize
+    @exts = %w[.txt .md .html]
+    @metafiles = %w[readme changelog changes copying license licence copyright authors]
+  end
+
+  def + other
+    @metafiles + other
+  end
+
+  def should_copy? file
+    include? file
+  end
+
+  def should_list? file
+    return false if %w[.DS_Store INSTALL_RECEIPT.json].include? file
+    not include? file
+  end
+
+private
+
+  def include? p
+    p = p.to_s # Might be a pathname
+    p = p.downcase
+    path = Pathname.new(p)
+    if @exts.include? path.extname
+      p = path.basename(path.extname)
+    else
+      p = path.basename
+    end
+    p = p.to_s
+    return @metafiles.include? p
+  end
+
+end