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