class GnuIndent < Formula
  desc "C code prettifier"
  homepage "https://www.gnu.org/software/indent/"
  url "https://ftp.gnu.org/gnu/indent/indent-2.2.12.tar.gz"
  mirror "https://ftpmirror.gnu.org/indent/indent-2.2.12.tar.gz"
  sha256 "e77d68c0211515459b8812118d606812e300097cfac0b4e9fb3472664263bb8b"

  bottle do
    rebuild 1
    sha256 "af195d9c6363843cee1a9ec8707cdcedb193fd74dbcd1abcb34781baac0231ed" => :mojave
    sha256 "7402c4707255b5d9d80208dcb922b37a8d0753c6143d291c53fc2774d6b23088" => :high_sierra
    sha256 "059d45ddc36600a53e52afd810123570e0bd277fc11f6c1b6b7c594919ab84db" => :sierra
    sha256 "d31ad8b842092150f18dd706d369a0fa6db7fbb41302247eac601c97785218af" => :el_capitan
  end

  option "with-default-names", "Do not prepend 'g' to the binary"

  deprecated_option "default-names" => "with-default-names"

  depends_on "gettext"

  def install
    args = %W[
      --disable-debug
      --disable-dependency-tracking
      --prefix=#{prefix}
      --mandir=#{man}
    ]

    args << "--program-prefix=g" if build.without? "default-names"

    system "./configure", *args
    system "make", "install"

    if build.without? "default-names"
      (libexec/"gnubin").install_symlink bin/"gindent" => "indent"
      (libexec/"gnuman/man1").install_symlink man1/"gindent.1" => "indent.1"
    end
  end

  test do
    (testpath/"test.c").write("int main(){ return 0; }")
    system "#{bin}/gindent", "test.c"
    assert_equal File.read("test.c"), <<~EOS
      int
      main ()
      {
        return 0;
      }
    EOS
  end
end