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 DELAY=
  11 export CONF_IMAGE=
  12 export CONF_BACKUP=
  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                 -b|--create-backup) export CONF_BACKUP="$2"; shift;;
  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" -a -z "$CONF_BACKUP" -o $HELP -gt 0 ] && {
  42         cat <<EOF
  43 Usage: $0 [options] <image file or URL>
  44
  45 Options:
  46         -d <delay>   add a delay before rebooting
  47         -f <config>  restore configuration from .tar.gz (file or url)
  48         -i           interactive mode
  49         -b / --create-backup <file>
  50                      create .tar.gz of files specified in sysupgrade.conf
  51                      then exit. Does not flash an image. If file is '-',
  52                      i.e. stdout, verbosity is set to 0 (i.e. quiet).
  53         -n           do not save configuration over reflash
  54         -q           less verbose
  55         -v           more verbose
  56         -h / --help  display this help
  57
  58 EOF
  59         exit 1
  60 }
  61
  62 [ -n "$ARGV" -a -n "$CONF_BACKUP" ] && {
  63         cat <<-EOF
  64                 -b/--create-backup does not perform a firmware upgrade. Do not
  65                 specify both -b and a firmware image.
  66         EOF
  67         exit 1
  68 }
  69
  70 # prevent messages from clobbering the tarball when using stdout
  71 [ "$CONF_BACKUP" = "-" ] && export VERBOSE=0
  72
  73 add_uci_conffiles() {
  74         local file="$1"
  75         ( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
  76                 /etc/sysupgrade.conf /lib/upgrade/keep.d/* 2>/dev/null) \
  77                 -type f 2>/dev/null;
  78           opkg list-changed-conffiles ) | sort -u > "$file"
  79         return 0
  80 }
  81
  82 # hooks
  83 sysupgrade_image_check="platform_check_image"
  84 sysupgrade_init_conffiles="add_uci_conffiles"
  85
  86 include /lib/upgrade
  87
  88 do_save_conffiles() {
  89         local conf_tar="${1:-$CONF_TAR}"
  90
  91         [ -z "$(rootfs_type)" ] && {
  92                 echo "Cannot save config while running from ramdisk."
  93                 ask_bool 0 "Abort" && exit
  94                 return 0
  95         }
  96         run_hooks "$CONFFILES" $sysupgrade_init_conffiles
  97         ask_bool 0 "Edit config file list" && vi "$CONFFILES"
  98
  99         v "Saving config files..."
 100         [ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
 101         tar c${TAR_V}zf "$conf_tar" -T "$CONFFILES" 2>/dev/null
 102 }
 103
 104 if [ -n "$CONF_BACKUP" ]; then
 105         do_save_conffiles "$CONF_BACKUP"
 106         exit $?
 107 fi
 108
 109 type platform_check_image >/dev/null 2>/dev/null || {
 110         echo "Firmware upgrade is not implemented for this platform."
 111         exit 1
 112 }
 113
 114 for check in $sysupgrade_image_check; do
 115         ( eval "$check \"\$ARGV\"" ) || {
 116                 echo "Image check '$check' failed."
 117                 exit 1
 118         }
 119 done
 120
 121 if [ -n "$CONF_IMAGE" ]; then
 122         case "$(get_magic_word $CONF_IMAGE cat)" in
 123                 # .gz files
 124                 1f8b) ;;
 125                 *)
 126                         echo "Invalid config file. Please use only .tar.gz files"
 127                         exit 1
 128                 ;;
 129         esac
 130         get_image "$CONF_IMAGE" "cat" > "$CONF_TAR"
 131         export SAVE_CONFIG=1
 132 elif ask_bool $SAVE_CONFIG "Keep config files over reflash"; then
 133         do_save_conffiles
 134         export SAVE_CONFIG=1
 135 else
 136         export SAVE_CONFIG=0
 137 fi
 138 run_hooks "" $sysupgrade_pre_upgrade
 139
 140 if [ -n "$(rootfs_type)" ]; then
 141         v "Switching to ramdisk..."
 142         run_ramfs '. /etc/functions.sh; include /lib/upgrade; do_upgrade'
 143 else
 144         do_upgrade
 145 fi