rm-deb-chroot

   1 #!/bin/bash
   2 if [ "$EUID" -ne 0 ]
   3     then echo "Please run as root"
   4     exit
   5 fi
   6 if [ -z "$1"  ]
   7     then echo "Need arg $1 to specify which chroot to delete"
   8     exit
   9 fi
  10
  11 chrootdir="$1"
  12 chroot_path=/opt/chroot/$chrootdir
  13 chroot_config_path=/etc/schroot/$chrootdir
  14
  15 schroot_main_config=/etc/schroot/schroot.conf
  16 backup_schroot_config="/tmp/schroot.conf.orig"
  17 sleep_time=1
  18
  19 echo "----------------------------------------------"
  20 echo "WARNING! If the script finds directories:"
  21 echo "$chroot_path"
  22 echo "$chroot_config_path"
  23 echo "It will DELETE them!"
  24 echo ""
  25 echo "The [$chrootdir] chroot profile from:"
  26 echo "$schroot_main_config"
  27 echo "will also be removed."
  28 echo ""
  29 echo "The script will wait for $sleep_time second/s before starting"
  30 echo "Press Ctrl-C now to cancel."
  31 echo "----------------------------------------------"
  32 sleep $sleep_time
  33
  34 if [ -e $chroot_path ]; then
  35     echo "Deleting $chroot_path"
  36     rm -rf $chroot_path
  37 else
  38     echo "$chroot_path not found, skipping."
  39 fi
  40
  41 if [ -e $chroot_config_path ]; then
  42     echo "Deleting $chroot_config_path configuration directory"
  43     rm -rf $chroot_config_path
  44 else
  45     echo "$chroot_config_path not found, skipping."
  46 fi
  47
  48 # Find where the entry for given scroot profile is in the file.
  49 # Return line number corresponding to the start.
  50 lin_num_start=$(grep -n "\[$chrootdir\]" $schroot_main_config | cut -d : -f 1)
  51
  52 if [ -z $lin_num_start ]; then
  53     echo "The [$chrootdir] chroot profile in $schroot_main_config does not exist"
  54     echo "Skipping $schroot_main_config"
  55 else
  56     echo "The [$chrootdir] chroot profile found in $schroot_main_config"
  57     # Can't think of a good way to make this clean
  58     # Assumption: the profile always ends with "profile=$chrootdir",
  59     # which will indicate the last line to delete of the old chroot
  60     lin_num_end=$(grep -n "profile=$chrootdir" $schroot_main_config | cut -d : -f 1)
  61     lines="$lin_num_start,$lin_num_end"
  62     echo "Line range to delete from $schroot_main_config: $lines"
  63
  64     echo "Creating backup copy of $schroot_main_config in $backup_schroot_config"
  65     cp $schroot_main_config $backup_schroot_config
  66     echo "Script will re-write $schroot_main_config by"
  67     echo "removing the old $chrootdir profile"
  68     sed -e "$lines"'d' $backup_schroot_config > $schroot_main_config
  69 fi