CHECK_PREREQ.sh

   1 #! /bin/bash
   2
   3 # Check prerequisite packages before compile time :-)
   4
   5 CWD=$(pwd)
   6 PREREQ=${PREREQ:-${CWD}/prereq}
   7 PKGS="/var/log/packages"
   8 RESULT="test_prereq.log"
   9 MISSING=0
  10
  11 if [ ! -f $PREREQ ];then
  12         echo -e "NO LIST OF PREREQUISITE PACKAGES FOUND! EXITING"
  13         echo "NO PREREQ LIST FOUND!" > $RESULT
  14         exit 117
  15 else
  16         # let's source the prereq list
  17         . $PREREQ
  18 fi
  19
  20 if [ ! -f $RESULT ];then
  21         touch $RESULT
  22 fi
  23
  24 # let's test them
  25 for KEY in ${!deps[@]}; do
  26         # echo "KEY is $KEY and VALUE is ${deps[${KEY}]}"
  27         findings=$(ls $PKGS |egrep -i "^$KEY")
  28         echo -e "$KEY:" >> $RESULT
  29         if [[ $findings != "" ]]; then
  30                 for l in $findings; do
  31                         echo -e "Installed\t$l" >> $RESULT
  32                 done
  33                 echo >> $RESULT
  34         else
  35                 let MISSING=MISSING+1
  36                 echo -e "Missing\t'$KEY'" >> $RESULT
  37                 echo -e "Expected\t'${deps[${KEY}]}'." >> $RESULT
  38                 echo >> $RESULT
  39         fi
  40 done
  41
  42 if [[ $MISSING -gt 1 ]]; then
  43         # We have missing packages, issue a warning!!
  44         echo -e "looks like $MISSING packages are missing. Go check the log."
  45         echo -e "grep \"Missing\" $RESULT"
  46         echo
  47 else
  48         # No missing packages. We can procede!!
  49         echo -e "GREAT!! All dependancies are satisfied."
  50         echo -e "Let's start building."
  51         echo
  52 fi