From ac17e24feca48ee347fc1dbd376beaee7907a75c Mon Sep 17 00:00:00 2001
From: Paul Duncan <pabs@pablotron.org>
Date: Wed, 10 Aug 2016 23:45:57 -0400
Subject: add dir?

---
 spec/zip_spec.cr | 13 ++++++++-----
 src/zip.cr       | 16 +++++++++++++++-
 2 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/spec/zip_spec.cr b/spec/zip_spec.cr
index 01a98ff..0ca4e86 100644
--- a/spec/zip_spec.cr
+++ b/spec/zip_spec.cr
@@ -91,12 +91,15 @@ describe Zip do
   it "reads all an archive's compressed entries" do
     Zip.read(File.join(TEST_DIR, "test-many.zip")) do |zip|
       zip.each do |e|
-        pp e.path
 
-        io = MemoryIO.new
-        # e.write(STDOUT)
-        e.write(io)
-        io.close
+        if e.dir?
+          puts "#{e.path} is a directory"
+        else
+          io = MemoryIO.new
+          # e.write(STDOUT)
+          e.write(io)
+          io.close
+        end
       end
     end
   end
diff --git a/src/zip.cr b/src/zip.cr
index a2316aa..be5fa56 100644
--- a/src/zip.cr
+++ b/src/zip.cr
@@ -11,7 +11,7 @@ require "zlib"
 # [x] convert datetime to Time
 # [x] add size to Entry
 # [x] Version
-# [ ] directories
+# [x] directories
 # [ ] full tests
 # [ ] zip64
 # [ ] legacy unicode (e.g., non-bit 11) path/comment support
@@ -1519,6 +1519,20 @@ module Zip
       data_mem_io.close
     end
 
+    #
+    # Returns true if this entry a directory.
+    #
+    # Example:
+    #
+    #     Zip.read("foo.zip") do |zip|
+    #       type = zip["some-dir/"].dir? ? "directory" : "file"
+    #       puts "#{path} is a #{type}"
+    #     end
+    #
+    def dir? : Bool
+      (@external_attr & 0x01) != 0
+    end
+
     #
     # Return the uncompressed size of this entry in bytes.
     #
-- 
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