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 export SAVE_OVERLAY=0
  11 export DELAY=
  12 export CONF_IMAGE=
  13 export HELP=0
  14
  15 # parse options
  16 while [ -n "$1" ]; do
  17         case "$1" in
  18                 -i) export INTERACTIVE=1;;
  19                 -d) export DELAY="$2"; shift;;
  20                 -v) export VERBOSE="$(($VERBOSE + 1))";;
  21                 -q) export VERBOSE="$(($VERBOSE - 1))";;
  22                 -n) export SAVE_CONFIG=0;;
  23                 -c) export SAVE_OVERLAY=1;;
  24                 -f) export CONF_IMAGE="$2"; shift;;
  25                 -h|--help) export HELP=1; break;;
  26                 -*)
  27                         echo "Invalid option: $1"
  28                         exit 1
  29                 ;;
  30                 *) break;;
  31         esac
  32         shift;
  33 done
  34
  35 export CONFFILES=/tmp/sysupgrade.conffiles
  36 export CONF_TAR=/tmp/sysupgrade.tgz
  37
  38 export ARGV="$*"
  39 export ARGC="$#"
  40
  41 [ -z "$ARGV" -o $HELP -gt 0 ] && {
  42         cat <<EOF
  43 Usage: $0 [options] <image file or URL>
  44
  45 Options:
  46         -d <delay>   add a delay before rebooting
  47         -f <config>  restore configuration from .tar.gz (file or url)
  48         -i           interactive mode
  49         -c           attempt to preserve all changed files in /etc/
  50         -n           do not save configuration over reflash
  51         -q           less verbose
  52         -v           more verbose
  53         -h / --help  display this help
  54
  55 EOF
  56         exit 1
  57 }
  58
  59 add_uci_conffiles() {
  60         local file="$1"
  61         ( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
  62                 /etc/sysupgrade.conf /lib/upgrade/keep.d/* 2>/dev/null) \
  63                 -type f 2>/dev/null;
  64           opkg list-changed-conffiles ) | sort -u > "$file"
  65         return 0
  66 }
  67
  68 add_overlayfiles() {
  69         local file="$1"
  70         find /overlay/etc/ -type f | sed \
  71                 -e 's,^/overlay/,/,' \
  72                 -e '\,/META_[a-zA-Z0-9]*$,d' \
  73                 -e '\,/functions.sh$,d' \
  74                 -e '\,/[^/]*-opkg$,d' \
  75         > "$file"
  76         return 0
  77 }
  78
  79 # hooks
  80 sysupgrade_image_check="platform_check_image"
  81 [ $SAVE_OVERLAY = 0 -o ! -d /overlay/etc ] && \
  82         sysupgrade_init_conffiles="add_uci_conffiles" || \
  83         sysupgrade_init_conffiles="add_overlayfiles"
  84
  85 include /lib/upgrade
  86
  87 do_save_conffiles() {
  88         [ -z "$(rootfs_type)" ] && {
  89                 echo "Cannot save config while running from ramdisk."
  90                 ask_bool 0 "Abort" && exit
  91                 return 0
  92         }
  93         run_hooks "$CONFFILES" $sysupgrade_init_conffiles
  94         ask_bool 0 "Edit config file list" && vi "$CONFFILES"
  95
  96         v "Saving config files..."
  97         [ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
  98         tar c${TAR_V}zf "$CONF_TAR" -T "$CONFFILES" 2>/dev/null
  99 }
 100
 101 type platform_check_image >/dev/null 2>/dev/null || {
 102         echo "Firmware upgrade is not implemented for this platform."
 103         exit 1
 104 }
 105
 106 for check in $sysupgrade_image_check; do
 107         ( eval "$check \"\$ARGV\"" ) || {
 108                 echo "Image check '$check' failed."
 109                 exit 1
 110         }
 111 done
 112
 113 if [ -n "$CONF_IMAGE" ]; then
 114         case "$(get_magic_word $CONF_IMAGE cat)" in
 115                 # .gz files
 116                 1f8b) ;;
 117                 *)
 118                         echo "Invalid config file. Please use only .tar.gz files"
 119                         exit 1
 120                 ;;
 121         esac
 122         get_image "$CONF_IMAGE" "cat" > "$CONF_TAR"
 123         export SAVE_CONFIG=1
 124 elif ask_bool $SAVE_CONFIG "Keep config files over reflash"; then
 125         do_save_conffiles
 126         export SAVE_CONFIG=1
 127 else
 128         export SAVE_CONFIG=0
 129 fi
 130 run_hooks "" $sysupgrade_pre_upgrade
 131
 132 if [ -n "$(rootfs_type)" ]; then
 133         v "Switching to ramdisk..."
 134         run_ramfs '. /etc/functions.sh; include /lib/upgrade; do_upgrade'
 135 else
 136         do_upgrade
 137 fi