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         opkg update
  41         [ $? -eq 0 ] || exit 1
  42
  43         opkg list-upgradable
  44         [ $? -eq 0 ] || exit 2
  45
  46         UPDATES=`opkg list-upgradable | cut -d" " -f1`
  47         [ -z "${UPDATES}" ] && exit 0
  48
  49         opkg upgrade ${UPDATES}
  50         [ $? -eq 0 ] || exit 3
  51
  52         do_snapshot_push
  53         sleep 5
  54         reboot
  55         sleep 10
  56 }
  57
  58 do_convert_jffs2() {
  59         snapshot_tool write
  60         sleep 2
  61         reboot -f
  62 }
  63
  64 do_convert() {
  65         . /lib/functions.sh
  66         . /lib/upgrade/common.sh
  67
  68         cd /overlay/upper
  69         tar czf /tmp/snapshot.tar.gz *
  70
  71         install_bin /sbin/upgraded
  72         ubus call system sysupgrade "{
  73                 \"prefix\": \"$RAM_ROOT\",
  74                 \"path\": \"\",
  75                 \"command\": \". /sbin/snapshot; do_convert_jffs2\"
  76         }"
  77 }
  78
  79 [ -n "$(cat /proc/mounts|grep /overlay|grep jffs2)" ] && {
  80 case $1 in
  81 convert)
  82         do_convert
  83         ;;
  84 esac
  85 }
  86
  87 [ -d /volatile/upper ] && {
  88 case $1 in
  89 push)
  90         do_snapshot_push
  91         ;;
  92 config)
  93         do_config_push
  94         ;;
  95 upgrade)
  96         do_snapshot_upgrade
  97         ;;
  98 info)
  99         snapshot_tool info
 100         ;;
 101 esac
 102 }
 103
 104 [ "$SNAPSHOT" = "magic" ] && {
 105 case $1 in
 106 unpack)
 107         do_snapshot_unpack
 108         ;;
 109 config_unpack)
 110         do_config_unpack
 111         ;;
 112 esac
 113 }