[PATCH] extras/autoindex: support hiding dotfiles

[Eric Wong <e@80x24.org>]

Switch option initialization to using a keyword hash
since yet-another boolean is too much.

Using kwargs won't work under Ruby 1.9.3 which we still
support (for now).

Note: being a part of extras/, there's no API stability
guarantees but this should've maintained it.
---
 extras/autoindex.rb | 28 +++++++++++++++++++++++-----
 1 file changed, 23 insertions(+), 5 deletions(-)

diff --git a/extras/autoindex.rb b/extras/autoindex.rb
index e84aa7b..4deb3ef 100644
--- a/extras/autoindex.rb
+++ b/extras/autoindex.rb
@@ -14,13 +14,29 @@ class Autoindex
   FN = %{<a href="%s">%s</a>}
   TFMT = "%Y-%m-%d %H:%M"
 
-  def initialize(app, index = %w(index.html), skip_gzip_static = true)
+  def initialize(app, *args)
     app.respond_to?(:root) or raise ArgumentError,
-       "wrapped app #{app.inspect} does not respond to :root"
+       "wrapped app #{app.inspect} does not respond to #root"
     @app = app
     @root = app.root
-    @index = index
-    @skip_gz = skip_gzip_static
+
+    @index = case args[0]
+    when Array then args.shift
+    when String then Array(args.shift)
+    else
+      %w(index.html)
+    end
+
+    @skip_gzip_static = @skip_dotfiles = nil
+    case args[0]
+    when Hash
+      @skip_gzip_static = args[0][:skip_gzip_static]
+      @skip_dotfiles = args[0][:skip_dotfiles]
+    when true, false
+      @skip_gzip_static = args.shift
+    end
+    @skip_gzip_static = true if @skip_gzip_static.nil?
+    @skip_dotfiles = false if @skip_dotfiles.nil?
   end
 
   def redirect_slash(env)
@@ -69,13 +85,15 @@ def call(env)
       # generate the index, show directories first
       dirs = []
       files = []
-      ngz_idx = {} if @skip_gz # used to avoid redundant stat()
+      ngz_idx = {} if @skip_gzip_static # used to avoid redundant stat()
       dir.each do |base|
         case base
         when "."
           next
         when ".."
           next if path_info == "/"
+        when /\A\./
+          next if @skip_dotfiles
         end
 
         begin
-- 
EW