require "formula"

class Watchman < Formula
  homepage "https://github.com/facebook/watchman"
  head "https://github.com/facebook/watchman.git"
  url "https://github.com/facebook/watchman/archive/v2.9.8.tar.gz"
  sha1 "f2ddfb5d42dce32da71dd789f63b705526fc9758"

  depends_on "autoconf" => :build
  depends_on "automake" => :build
  depends_on "pkg-config" => :build
  depends_on "pcre"

  def install
    system "./autogen.sh"
    system "./configure", "--disable-dependency-tracking",
                          "--prefix=#{prefix}",
                          "--with-pcre"
    system "make"
    system "make install"
  end

  def caveats; <<-EOS.undent
    To increase file limits add 'kern.maxfiles=10485760' and 'kern.maxfilesperproc=10485760'
    to /etc/sysctl.conf (use 'sysctl -w' to do so immediately).

    See https://github.com/facebook/watchman#max-os-file-descriptor-limits
    EOS
  end
end