package/system/fstools/files/snapshot

   1 #!/bin/sh
   2 # Copyright (C) 2014 OpenWrt.org
   3
   4
   5 do_snapshot_unpack() {
   6         echo "- snapshot -"
   7         mkdir /tmp/snapshot
   8         cd /tmp/snapshot
   9         snapshot_tool read
  10         block=`ls block*.tar.gz 2> /dev/null`
  11         [ -z "$block" ] || for a in $block; do
  12                 tar xzf $a -C /
  13                 rm -f $a
  14         done
  15 }
  16
  17 do_config_unpack() {
  18         echo "- config -"
  19         snapshot_tool config_read
  20         [ -f /tmp/config.tar.gz ] && {
  21                 tar xzf /tmp/config.tar.gz -C /
  22                 rm -f /tmp/config.tar.gz
  23         }
  24 }
  25
  26 do_snapshot_push() {
  27         cd /volatile/upper
  28         tar czf /tmp/snapshot.tar.gz *
  29         snapshot_tool write
  30         reboot
  31 }
  32
  33 do_config_push() {
  34         cd /volatile/upper
  35         tar czf /tmp/config.tar.gz *
  36         snapshot_tool config_write
  37 }
  38
  39 do_snapshot_upgrade() {
  40         if command -v opkg; then
  41                 opkg update
  42                 [ $? -eq 0 ] || exit 1
  43
  44                 opkg list-upgradable
  45                 [ $? -eq 0 ] || exit 2
  46
  47                 UPDATES=`opkg list-upgradable | cut -d" " -f1`
  48                 [ -z "${UPDATES}" ] && exit 0
  49
  50                 opkg upgrade ${UPDATES}
  51                 [ $? -eq 0 ] || exit 3
  52         else
  53                 apk upgrade
  54         fi
  55
  56         do_snapshot_push
  57         sleep 5
  58         reboot
  59         sleep 10
  60 }
  61
  62 do_convert_jffs2() {
  63         snapshot_tool write
  64         sleep 2
  65         reboot -f
  66 }
  67
  68 do_convert() {
  69         . /lib/functions.sh
  70         . /lib/upgrade/common.sh
  71
  72         cd /overlay/upper
  73         tar czf /tmp/snapshot.tar.gz *
  74
  75         install_bin /sbin/upgraded
  76         ubus call system sysupgrade "{
  77                 \"prefix\": \"$RAM_ROOT\",
  78                 \"path\": \"\",
  79                 \"command\": \". /sbin/snapshot; do_convert_jffs2\"
  80         }"
  81 }
  82
  83 [ -n "$(cat /proc/mounts|grep /overlay|grep jffs2)" ] && {
  84 case $1 in
  85 convert)
  86         do_convert
  87         ;;
  88 esac
  89 }
  90
  91 [ -d /volatile/upper ] && {
  92 case $1 in
  93 push)
  94         do_snapshot_push
  95         ;;
  96 config)
  97         do_config_push
  98         ;;
  99 upgrade)
 100         do_snapshot_upgrade
 101         ;;
 102 info)
 103         snapshot_tool info
 104         ;;
 105 esac
 106 }
 107
 108 [ "$SNAPSHOT" = "magic" ] && {
 109 case $1 in
 110 unpack)
 111         do_snapshot_unpack
 112         ;;
 113 config_unpack)
 114         do_config_unpack
 115         ;;
 116 esac
 117 }