bwm-ng 0.6.1, HEAD

Closes Homebrew/homebrew#42637.

Formula/bwm-ng.rb

@@ -1,13 +1,26 @@
 class BwmNg < Formula
   desc "Console-based live network and disk I/O bandwidth monitor"
   homepage "http://www.gropp.org/?id=projects&sub=bwm-ng"
-  url "http://www.gropp.org/bwm-ng/bwm-ng-0.6.tar.gz"
-  sha256 "c1134358e268329d438b0996399003b0f0b966034fb4b5b138761c2f3c62ffdd"
+  url "https://github.com/vgropp/bwm-ng/releases/download/v0.6.1/bwm-ng-0.6.1.tar.gz"
+  mirror "http://www.gropp.org/bwm-ng/bwm-ng-0.6.1.tar.gz"
+  sha256 "027cf3c960cd96fc9ffacdf7713df62d0fc55eeef4a1388289f8a62ae5e50df0"
+
+  head do
+    url "https://github.com/vgropp/bwm-ng.git"
+    depends_on "automake" => :build
+    depends_on "autoconf" => :build
+  end
 
   def install
     ENV.append "CFLAGS", "-std=gnu89"
+
+    system "./autogen.sh" if build.head?
     system "./configure", "--disable-debug", "--disable-dependency-tracking",
                           "--prefix=#{prefix}"
     system "make", "install"
   end
+
+  test do
+    assert_match "<div class=\"bwm-ng-header\">", shell_output("#{bin}/bwm-ng -o html")
+  end
 end