class Grc < Formula
  desc "Colorize logfiles and command output"
  homepage "http://korpus.juls.savba.sk/~garabik/software/grc.html"
  url "http://korpus.juls.savba.sk/~garabik/software/grc/grc_1.9.orig.tar.gz"
  sha256 "41626e571ca255e1a9fe0816f3c0dfd1a30d9564d0decaf4b7365e28e3c54f5b"

  conflicts_with "cc65", :because => "both install `grc` binaries"

  def install
    inreplace ["grc", "grc.1"], "/etc", etc
    inreplace ["grcat", "grcat.1"], "/usr/local", prefix

    etc.install "grc.conf"
    bin.install %w[grc grcat]
    (share+"grc").install Dir["conf.*"]
    man1.install %w[grc.1 grcat.1]

    (prefix+"etc/grc.bashrc").write rc_script
  end

  def rc_script; <<-EOS.undent
    GRC=`which grc`
    if [ "$TERM" != dumb ] && [ -n "$GRC" ]
    then
        alias colourify="$GRC -es --colour=auto"
        alias configure='colourify ./configure'
        alias diff='colourify diff'
        alias make='colourify make'
        alias gcc='colourify gcc'
        alias g++='colourify g++'
        alias as='colourify as'
        alias gas='colourify gas'
        alias ld='colourify ld'
        alias netstat='colourify netstat'
        alias ping='colourify ping'
        alias traceroute='colourify /usr/sbin/traceroute'
        alias head='colourify head'
        alias tail='colourify tail'
        alias dig='colourify dig'
        alias mount='colourify mount'
        alias ps='colourify ps'
        alias mtr='colourify mtr'
        alias df='colourify df'
    fi
    EOS
  end

  def caveats; <<-EOS.undent
    New shell sessions will start using GRC after you add this to your profile:
      source "`brew --prefix`/etc/grc.bashrc"
    EOS
  end
end