Homebrew tmux formula with mouse scroll down fix

tmux-mouse-fix.rb

require 'formula'

class TmuxMouseFix < Formula
  url 'http://sourceforge.net/projects/tmux/files/tmux/tmux-1.6/tmux-1.6.tar.gz'
  md5 '3e37db24aa596bf108a0442a81c845b3'
  homepage 'http://tmux.sourceforge.net'

  head 'https://tmux.svn.sourceforge.net/svnroot/tmux/trunk'

  depends_on 'libevent'

  if ARGV.build_head? and MacOS.xcode_version >= "4.3"
    depends_on "automake" => :build
    depends_on "libtool" => :build
  end

  def patches
    #fix mouse scroll
    DATA
  end

  def install
    system "sh", "autogen.sh" if ARGV.build_head?

    ENV.append "LDFLAGS", '-lresolv'
    system "./configure", "--disable-dependency-tracking",
                          "--prefix=#{prefix}", "--sysconfdir=#{etc}"
    system "make install"

    # Install bash completion scripts for use with bash-completion
    (prefix+'etc/bash_completion.d').install "examples/bash_completion_tmux.sh" => 'tmux'
  end

  def caveats; <<-EOS.undent
    Bash completion script was installed to:
      #{etc}/bash_completion.d/tmux
    EOS
  end

  def test
    system "#{bin}/tmux", "-V"
  end
end

__END__
commit ea413f3ccacfab5d8b1aed034b92e505f44e14ca
Author: James Nylen <[email protected]>
Date:   Sun Apr 1 05:04:04 2012 -0400

    Fix exiting copy mode with mouse scrolling
    
    Exit copy mode when scrolling off the bottom of the entire history, not
    the current visible screen.

diff --git a/window-copy.c b/window-copy.c
index 4f25f3f..dee2750 100644
--- a/window-copy.c
+++ b/window-copy.c
@@ -822,7 +822,7 @@ window_copy_mouse(
 {
 	struct window_copy_mode_data	*data = wp->modedata;
 	struct screen			*s = &data->screen;
-	u_int				 i, old_cy;
+	u_int				 i;
 
 	if (m->x >= screen_size_x(s))
 		return;
@@ -835,10 +835,9 @@ window_copy_mouse(
 			for (i = 0; i < 5; i++)
 				window_copy_cursor_up(wp, 0);
 		} else if ((m->b & MOUSE_BUTTON) == MOUSE_2) {
-			old_cy = data->cy;
 			for (i = 0; i < 5; i++)
 				window_copy_cursor_down(wp, 0);
-			if (old_cy == data->cy)
+			if (!data->oy)
 				goto reset_mode;
 		}
 		return;