Set of scripts to kill Things after 5 minutes of keyboard/mouse idle

idlequit

#!/bin/sh
# idlequit <application name> <timeout>
#   Quits application if system has been idle for greater than timeout.

if [ $# -ne 2 ]; then
  echo "Usage: idlequit <application name> <timeout>" >&2
  exit 1
fi

if [ `/usr/local/bin/idletime` -gt ${2} ]; then
  /usr/local/bin/pgrep ${1} > /dev/null && osascript -e "tell application \"${1}\" to quit"
fi

idletime

#!/bin/sh
echo $((`ioreg -c IOHIDSystem | sed -e '/HIDIdleTime/!{ d' -e 't' -e '}' -e 's/.* = //g' -e 'q'` / 1000000000))

install.sh

#!/bin/sh
# install.sh

cp idlequit /usr/local/bin/
chmod 755 /usr/local/bin/idlequit
cp idletime /usr/local/bin/
chmod 755 /usr/local/bin/idletime
cp local.idlequit.Things.plist ~/Library/LaunchAgents/

launchctl load -w ~/Library/LaunchAgents/local.idlequit.Things.plist

local.idlequit.Things.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>Label</key>
  <string>local.idlequit.Things</string>
  <key>ProgramArguments</key>
  <array>
    <string>/usr/local/bin/idlequit</string>
    <string>Things</string>
    <string>240</string>
  </array>
  <key>RunAtLoad</key>
  <true/>
  <key>KeepAlive</key>
  <false/>
  <key>StartInterval</key>
  <integer>120</integer>
</dict>
</plist>

To install, clone and run sh install.sh. Can be easily edited to work for other applications.