package/base-files/files/sbin/sysupgrade

   1 #!/bin/sh
   2 . /etc/functions.sh
   3
   4 # initialize defaults
   5 RAMFS_COPY_BIN=""       # extra programs for temporary ramfs root
   6 RAMFS_COPY_DATA=""      # extra data files
   7 export INTERACTIVE=0
   8 export VERBOSE=1
   9 export SAVE_CONFIG=1
  10
  11 # parse options
  12 while [ -n "$1" ]; do
  13         case "$1" in
  14                 -i) export INTERACTIVE=1;;
  15                 -v) export VERBOSE="$(($VERBOSE + 1))";;
  16                 -q) export VERBOSE="$(($VERBOSE - 1))";;
  17                 -*)
  18                         echo "Invalid option: $1"
  19                         exit 1
  20                 ;;
  21                 *) break;;
  22         esac
  23         shift;
  24 done
  25
  26 export CONFFILES=/tmp/sysupgrade.conffiles
  27 export CONF_TAR=/tmp/sysupgrade.tgz
  28
  29 export ARGV="$*"
  30 export ARGC="$#"
  31
  32 [ -z "$ARGV" ] && {
  33         cat <<EOF
  34 Usage: $0 [options] <image file or URL>
  35
  36 Options:
  37         -i      interactive mode
  38         -v      more verbose
  39         -q      less verbose
  40
  41 EOF
  42         exit 1
  43 }
  44
  45 add_uci_conffiles() {
  46         local file="$1"
  47         find /etc/config /etc/passwd /etc/group /etc/dropbear /etc/firewall.* > "$file"
  48         return 0
  49 }
  50
  51 # hooks
  52 sysupgrade_image_check="platform_check_image"
  53 sysupgrade_init_conffiles="add_uci_conffiles"
  54
  55 include /lib/upgrade
  56
  57 do_save_conffiles() {
  58         [ -z "$(rootfs_type)" ] && {
  59                 echo "Cannot save config while running from ramdisk."
  60                 ask_bool 0 "Abort" && exit
  61                 return 0
  62         }
  63         run_hooks "$CONFFILES" $sysupgrade_init_conffiles
  64         ask_bool 0 "Edit config file list" && vi "$CONFFILES"
  65
  66         v "Saving config files..."
  67         [ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
  68         tar c${TAR_V}zf "$CONF_TAR" -T "$CONFFILES" 2>/dev/null
  69 }
  70
  71 type platform_check_image >/dev/null 2>/dev/null || {
  72         echo "Firmware upgrade is not implemented for this platform."
  73         exit 1
  74 }
  75
  76 for check in $sysupgrade_image_check; do
  77         ( eval "$check \"\$ARGV\"" ) || {
  78                 echo "Image check '$check' failed."
  79                 exit 1
  80         }
  81 done
  82
  83 if ask_bool $SAVE_CONFIG "Keep config files over reflash"; then
  84         do_save_conffiles
  85         export SAVE_CONFIG=1
  86 else
  87         export SAVE_CONFIG=0
  88 fi
  89 run_hooks "" $sysupgrade_pre_upgrade
  90
  91 v "Switching to ramdisk..."
  92 run_ramfs '. /etc/functions.sh; include /lib/upgrade; do_upgrade'