1 files changed, 49 insertions, 0 deletions
diff --git a/Library/Formula/vnstat.rb b/Library/Formula/vnstat.rb
new file mode 100644
index 000000000..d27ba4284
--- /dev/null
+++ b/Library/Formula/vnstat.rb
@@ -0,0 +1,49 @@
+require 'formula'
+
+class Vnstat <Formula
+  url 'http://humdi.net/vnstat/vnstat-1.10.tar.gz'
+  homepage 'http://humdi.net/vnstat/'
+  md5 '95421d968689130590348ceb80ff74a8'
+
+  def install
+    inreplace ["src/cfg.c", "man/vnstat.1", "man/vnstatd.1", "man/vnstat.conf.5"] do |s|
+      s.gsub!('/etc/vnstat.conf',    "#{etc}/vnstat.conf")
+      s.gsub!('/var/lib/vnstat',     "#{var}/db/vnstat")
+      s.gsub!('/var/log/vnstat.log', "#{var}/log/vnstat.log")
+      s.gsub!('/var/run/vnstat.pid', "#{var}/run/vnstat.pid")
+    end
+
+    inreplace "src/Makefile" do |s|
+      s.change_make_var! "CFLAGS", ENV.cflags
+      s.change_make_var! "CC", ENV.cc
+    end
+
+    inreplace "cfg/vnstat.conf" do |c|
+      c.gsub!('DatabaseDir "/var/lib/vnstat"', %Q{DatabaseDir "#{var}/db/vnstat"})
+      c.gsub!('LogFile "/var/log/vnstat.log"', %Q{LogFile "#{var}/log/vnstat.log"})
+      c.gsub!('PidFile "/var/run/vnstat.pid"', %Q{PidFile "#{var}/run/vnstat.pid"})
+    end
+
+    (var + 'db/vnstat').mkpath
+    (var + 'spool/vnstat').mkpath
+
+    system "make -C src"
+    (prefix + 'etc').install "cfg/vnstat.conf"
+    bin.install "src/vnstat"
+    bin.install "src/vnstatd"
+    man1.install "man/vnstat.1"
+    man1.install "man/vnstatd.1"
+    man5.install "man/vnstat.conf.5"
+  end
+
+  def caveats; <<-MSG
+    To setup vnstat, run `vnstat -u -i en0' (replace en0 with the network
+    interface you wish to monitor).
+
+    You must then create a cron job to update the vnstat database.
+
+    Run `crontab -e', and add the following:
+    0-55/5 * * * * if [ -x #{bin}/vnstat ] && [ `ls #{var}/db/vnstat/ | wc -l` -ge 1 ]; then #{bin}/vnstat -u; fi
+    MSG
+  end
+end