dselect/install

   1 #!/bin/sh
   2
   3 # Get the configuration from /etc/apt/apt.conf
   4 CLEAN="auto"
   5 OPTS="-f"
   6 APTGET="/usr/bin/apt-get"
   7 DPKG="/usr/bin/dpkg"
   8 set -e
   9 RES=`apt-config shell CLEAN DSelect::Clean OPTS DSelect::Options \
  10                       DPKG Dir::Bin::dpkg APTGET Dir::Bin::apt-get`
  11 eval $RES
  12 set +e
  13
  14 # Yes/No Prompter
  15 yesno() {
  16 # $1 = prompt
  17 # $2 = default(y)
  18         local ans def defp
  19         if [ "$2" ];then
  20                 case $2 in
  21                         Y|y)    defp="(Y/n)" def=y;;
  22                         N|n)    defp="(y/N)" def=n;;
  23                         *)      echo "Bad default setting!" 1>&2; exit 1;;
  24                 esac
  25         else
  26                 defp="(y/N)" def=n
  27         fi
  28         while :;do
  29                 echo -n "$1$defp" 1>&3
  30                 read ans
  31                 case $ans in
  32                         Y|y|N|n)        break;;
  33                         "")             ans=$def;break;;
  34                 esac
  35                 echo
  36         done
  37         echo $ans | tr YN yn
  38 }
  39
  40 $APTGET $OPTS dselect-upgrade
  41 RES=$?
  42
  43 # 1 means the user choose no at the prompt
  44 if [ $RES -eq 1 ]; then
  45   exit 0
  46 fi
  47
  48 # Finished OK
  49 if [ $RES -eq 0 ]; then
  50    # Check the cleaning mode
  51    case `echo $CLEAN | tr '[:upper:]' '[:lower:]'` in
  52      always|auto)
  53        $APTGET clean && echo "Press enter to continue." && read RES && exit 0;
  54        ;;
  55      prompt)
  56        exec 3>&1
  57        if [ `yesno "Do you want to erase the downloaded files " y` = y ]; then
  58           $APTGET clean && echo "Press enter to continue." && read RES && exit 0;
  59        fi
  60        ;;
  61      *)
  62        ;;
  63    esac
  64 else
  65    echo "Some errors occurred while unpacking. I'm going to configure the"
  66    echo "packages that were installed. This may result in duplicate errors"
  67    echo "or errors caused by missing dependencies. This is OK, only the errors"
  68    echo "above this message are important. Please fix them and run [I]nstall again"
  69    echo "Press enter to continue."
  70    read RES && $DPKG --configure -a
  71    exit 100
  72 fi
  73
  74 exit $?