new formula: exim 4.71 message transfer agent

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

* Tweaked to comform better to Homebrew style.

1 files changed, 68 insertions, 0 deletions

diff --git a/Library/Formula/exim.rb b/Library/Formula/exim.rb
new file mode 100644
index 000000000..19e0da5c2
--- /dev/null
+++ b/Library/Formula/exim.rb
@@ -0,0 +1,68 @@
+require 'formula'
+
+class Exim <Formula
+  url 'http://ftp.exim.org/pub/exim/exim4/exim-4.71.tar.gz'
+  homepage 'http://exim.org'
+  sha1 '8198c70892ba8ce1a1c550b0d19bc7590814c535'
+
+  depends_on 'pcre'
+
+  def install
+    FileUtils.cp 'src/EDITME', 'Local/Makefile'
+    inreplace 'Local/Makefile' do |s|
+      s.remove_make_var! "EXIM_MONITOR"
+      s.change_make_var! "EXIM_USER", ENV['USER']
+      s.change_make_var! "SYSTEM_ALIASES_FILE", etc + 'aliases'
+      s.gsub!('/usr/exim/configure', etc + 'exim.conf')
+      s.gsub!('/usr/exim', prefix)
+      s.gsub!('/var/spool/exim', var + 'spool/exim')
+
+      # For non-/usr/local HOMEBREW_PREFIX
+      s << "LOOKUP_INCLUDE=-I#{HOMEBREW_PREFIX}/include\n"
+      s << "LOOKUP_LIBS=-L#{HOMEBREW_PREFIX}/lib\n"
+   end
+     
+    inreplace 'OS/Makefile-Darwin' do |s|
+      s.remove_make_var! %w{CC CFLAGS}
+    end
+    
+    system "make"
+    system "make INSTALL_ARG=-no_chown install"
+    (man + 'man8').install 'doc/exim.8'
+    (bin + 'exim_ctl').write startup_script
+  end
+  
+  #inspired from macports startup script, but with fixed restart issue due to missing setuid
+  def startup_script
+    return <<-END
+#!/bin/sh
+PID=#{var}/spool/exim/exim-daemon.pid
+case "$1" in
+start)
+  echo "starting exim mail transfer agent"
+  #{bin}/exim -bd -q30m
+  ;;
+restart)
+  echo "restarting exim mail transfer agent"
+  /bin/kill -15 `/bin/cat $PID` && sleep 1 && #{bin}/exim -bd -q30m
+  ;;
+stop)
+  echo "stopping exim mail transfer agent"
+  /bin/kill -15 `/bin/cat $PID`
+  ;;
+*)
+  echo "Usage: #{bin}/exim_ctl {start|stop|restart}"
+  exit 1
+  ;;
+esac
+END
+  end
+  
+  def caveats
+    <<-EOS.undent
+      Start with:
+        exim_ctl start
+      Don't forget to run it as root to be able to bind port 25.
+    EOS
+  end
+end