halibut 1.0

Closes Homebrew/legacy-homebrew#25828.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>

Formula/halibut.rb

@@ -0,0 +1,29 @@
+require 'formula'
+
+class Halibut < Formula
+  homepage 'http://www.chiark.greenend.org.uk/~sgtatham/halibut/'
+  url 'http://www.chiark.greenend.org.uk/~sgtatham/halibut/halibut-1.0.tar.gz'
+  sha1 '1e4643faf2bb4e1843740b8c70635d3d33bb7989'
+
+  def install
+    bin.mkpath
+    man1.mkpath
+
+    system "make", "prefix=#{prefix}", "mandir=#{man}", "all"
+    cd "doc" do
+      system "make", "prefix=#{prefix}", "mandir=#{man}"
+    end
+    system "make", "prefix=#{prefix}", "mandir=#{man}", "install"
+  end
+
+  test do
+    # Initial sanity test
+    system "#{bin}/halibut", "--version"
+
+    # Test converting to HTML.
+    (testpath/'sample.but').write('Hello, world!')
+    system "#{bin}/halibut", "--html=sample.html", "sample.but"
+
+    assert_match /<p>\nHello, world!\n<\/p>/, (testpath/'sample.html').read()
+  end
+end