modules/admin-core/root/sbin/luci-flash

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