#!/bin/sh
# Update Various System Files, Ports, etc.
# Copyright (c) 2006-2016, TundraWare Inc, Des Plaines, IL USA
# All Rights Reserved
# $Id$


#####
# Where To Put The Various Log Files Generated Here
#####

LOGDIR=/var/log

#####
# Some Program Locations Vary By OS
###

ECHO=$(which echo)


#####
# List Of Sets To Process By Default
#####

#ALL='debian freebsd_doc freebsd_ports freebsd_src freebsd_sys macports redhat texlive'

# !!!
# !!! Edit this or the program will do nothing without CLI args
# !!!

DEFAULTSETS=${SYSUPD:-""}   # Allow setting this from the environment

# ---------------- Support Functions ---------------- #

#####
# Enter Timestamp Into Current Log
# Args:
#       $1  Name of logfile
#####

timestamp()
{
  ${ECHO} "" >> $1
  ${ECHO} "#####" >> $1
  ${ECHO} -n "# " >> $1
  date >>$1
  ${ECHO} "#####" >> $1
  ${ECHO} "" >> $1
}

# End Of 'timestamp()'


#####
# Execute The Desired Update
# Args:
#       $1 Update Name
#       $2 Log Directory
#       $3 Command String To Execute
#####

runupd()
{
      log=$2/sysupd-$1.log
      timestamp $log
      touch $2/.sysupd-$1-begin && eval $3 >>$log 2>&1 && touch $2/.sysupd-$1-end &
}

# End of 'runupd()'


# -------------------- Program Entry Point ---------------#



#####
# Command line args override default set
#####


if [ "$*"_ = _ ]
then
  SETS=$DEFAULTSETS
else
  SETS=$*
fi


#####
# Process The Requested Updates
#####

for SET in $SETS
do

  case $SET
  in

    ###
    # Debian Linux Updates
    ###

    debian)
      runupd $SET $LOGDIR "/usr/bin/apt-get -y update && /usr/bin/apt-get -y dist-upgrade && /usr/bin/apt-get -y upgrade"
    ;;

    ###
    # FreeBSD Documentation Updates
    ###

    freebsd_doc)
      runupd $SET $LOGDIR "/usr/local/bin/svn update /usr/doc"
    ;;


    ###
    # Freebsd Ports Updates
    ###

    freebsd_ports)
      runupd $SET $LOGDIR "/usr/sbin/portsnap cron update"
    ;;


    ###
    # FreeBSD Source Code Updates
    ###

    freebsd_src)
      runupd $SET $LOGDIR "/usr/local/bin/svn update /usr/src"
    ;;


    ###
    # FreeBSD Rebuild OS & Kernels
    ###

    freebsd_sys)
      rm -f $LOGDIR/sysupd-${SET}.log  # Only keep latest run log
      cd /usr/src
      runupd $SET $LOGDIR "make -j4 clean buildworld buildkernel"
    ;;


    ###
    # MacPorts
    ###

    macports)
       runupd $SET $LOGDIR "/opt/local/bin/port selfupdate && /opt/local/bin/port upgrade outdated"
    ;;


    ###
    # RedHat YUM Updates
    ###

    redhat)
       runupd $SET $LOGDIR "/usr/bin/yum -y clean all && /usr/bin/yum -y upgrade"
    ;;


    ###
    # TeX Live Updates
    ###

    texlive)
       runupd $SET $LOGDIR "/usr/local/bin/tlmgr update --self && /usr/local/bin/tlmgr update --all"
    ;;


    #####
    # Catch Errors
    #####

    *)
     ${ECHO} "Invalid sysupd Option Specified!"
    ;;

  esac

done