New Formula: libraw

New Formula: libraw  This is a library for handling RAW images.
There is a dep on little-cms to enable ICC Color Profiles.  The
optional GPL2 and GPL3 demosaic packs are also built with this.
The library is stable and has a consistent API that supports
reading, decoding, and unpacking of RAW image files, along with
conversion, interpolation, and output.  It was compiled and tested
with clang-2.0, llvm 2335, and gcc-4.2.1 on OSX 10.6.8 x86_64.

Closes Homebrew/homebrew#7684.

Signed-off-by: Charlie Sharpsteen <source@sharpsteen.net>

Formula/libraw.rb

@@ -0,0 +1,63 @@
+require 'formula'
+
+class LibrawDemosaicGPL2 < Formula
+  url 'http://www.libraw.org/data/LibRaw-demosaic-pack-GPL2-0.13.8.tar.gz'
+  sha1 '0a5113d255c292d81ea38f583172ed550518a410'
+end
+
+class LibrawDemosaicGPL3 < Formula
+  url 'http://www.libraw.org/data/LibRaw-demosaic-pack-GPL3-0.13.8.tar.gz'
+  sha1 'df7bf32567461408c5da74491482a0b700225da4'
+end
+
+class Libraw < Formula
+  url 'http://www.libraw.org/data/LibRaw-0.13.8.tar.gz'
+  homepage 'http://www.libraw.org/'
+  sha1 '7b1bc092dc442fd20773c1155e1f3022b379b55a'
+
+  depends_on 'little-cms'
+
+  def install
+    d = Pathname.getwd.dirname
+    LibrawDemosaicGPL2.new.brew { d.install Dir['*'] }
+    LibrawDemosaicGPL3.new.brew { d.install Dir['*'] }
+
+    system "./configure", "--prefix=#{prefix}",
+                          "--disable-dependency-tracking",
+                          "--enable-demosaic-pack-gpl2=#{d}",
+                          "--enable-demosaic-pack-gpl3=#{d}"
+    system "make"
+    system "make install"
+    doc.install Dir['doc/*']
+    (prefix+'samples').mkpath
+    (prefix+'samples').install Dir['samples/*']
+  end
+
+  def test
+    mktemp do
+      netraw = "http://www.rawsamples.ch/raws/nikon/d1/RAW_NIKON_D1.NEF"
+      localraw = "#{HOMEBREW_CACHE}/Formula/RAW_NIKON_D1.NEF"
+      if File.exists? localraw
+        system "#{HOMEBREW_PREFIX}/bin/raw-identify -u #{localraw}"
+        system "#{HOMEBREW_PREFIX}/bin/simple_dcraw -v -T #{localraw}"
+        system "/usr/bin/qlmanage -p #{localraw}.tiff >& /dev/null &"
+      else
+        puts ""
+        opoo <<-EOS.undent
+          A good test that uses libraw.dylib to open and convert a RAW image
+          to tiff was delayed until the RAW test image from the Internet is in your
+          cache. To download that image and run the test, simply type
+
+             brew fetch #{netraw}
+             brew test libraw
+
+          It's a fairly small image, 4 MB, that takes less time to download than
+          read this.  Please ignore the harmless message from brew fetch about
+          No Available Formula.  Brew fetch works correctly as does this well
+          written software.
+
+        EOS
+      end
+    end
+  end
+end