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
  28         tar czf /tmp/snapshot.tar.gz *
  29         snapshot_tool write
  30         reboot
  31 }
  32
  33 do_config_push() {
  34         cd /volatile
  35         tar czf /tmp/config.tar.gz *
  36         snapshot_tool config_write
  37 }
  38
  39 do_snapshot_upgrade() {
  40         opkg update
  41         [ $? == 0 ] || exit 1
  42
  43         opkg list-upgradable
  44         [ $? == 0 ] || exit 2
  45
  46         UPDATES=`opkg list-upgradable | cut -d" " -f1`
  47         [ -z "${UPDATES}" ] && exit 0
  48
  49         opkg upgrade ${UPDATES}
  50         [ $? == 0 ] || exit 3
  51
  52         do_snapshot_push
  53         sleep 5
  54         reboot
  55         sleep 10
  56 }
  57
  58 do_convert_jffs2() {
  59         snapshot_tool write
  60         sleep 2
  61         reboot -f
  62 }
  63
  64 do_convert() {
  65         . /lib/functions.sh
  66         . /lib/upgrade/common.sh
  67         ubus call system upgrade
  68         touch /tmp/sysupgrade
  69         cd /overlay
  70         tar czf /tmp/snapshot.tar.gz *
  71         kill_remaining TERM
  72         sleep 3
  73         kill_remaining KILL
  74         run_ramfs '. /sbin/snapshot; do_convert_jffs2'
  75 }
  76
  77 [ -n "$(cat /proc/mounts|grep /overlay|grep jffs2)" ] && {
  78 case $1 in
  79 convert)
  80         do_convert
  81         ;;
  82 esac
  83 }
  84
  85 [ -d /volatile ] && {
  86 case $1 in
  87 push)
  88         do_snapshot_push
  89         ;;
  90 config)
  91         do_config_push
  92         ;;
  93 upgrade)
  94         do_snapshot_upgrade
  95         ;;
  96 info)
  97         snapshot_tool info
  98         ;;
  99 esac
 100 }
 101
 102 [ "$SNAPSHOT" = "magic" ] && {
 103 case $1 in
 104 unpack)
 105         do_snapshot_unpack
 106         ;;
 107 config_unpack)
 108         do_config_unpack
 109         ;;
 110 esac
 111 }