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  1. #!/bin/bash
  2. THISDIR="$( pwd )"
  3. DIRBASENAME="$( basename "$THISDIR" )"
  4. if [[ -e /proc/sys/kernel/random/uuid ]]; then
  5. UUID=$(cat /proc/sys/kernel/random/uuid)
  6. else
  7. UUID=$(uuidgen)
  8. fi
  9. HOSTNAME=$(hostname -s)
  10. TS=$(date -u +%Y-%m-%d-%H-%M-%S)
  11. FN="$TS.$HOSTNAME.$UUID.$DIRBASENAME"
  12. BACKUPDEST=notfound
  13. for DIR in /Volumes/* ; do
  14. if [[ -e "$DIR/berlin.sneak/backup" ]]; then
  15. BACKUPDEST="$DIR/berlin.sneak/backup"
  16. fi
  17. done
  18. if [[ "$BACKUPDEST" = "notfound" ]]; then
  19. echo "Unable to find backup target disk, exiting." > /dev/stderr
  20. exit 127
  21. fi
  22. echo "Backup disk found at $BACKUPDEST, backing up $THISDIR..."
  23. KEYSERVER="hkps.pool.sks-keyservers.net"
  24. KEYS=""
  25. KEYS+=" 5539AD00DE4C42F3AFE11575052443F4DF2A55C2" #sneak@sneak.berlin
  26. KEYS+=" FF2530A4F3F152E8865FC17CA833B7CE3F2CC6FC" #JP Yubi 6192
  27. KEYS+=" 078BBD04FBE35D665180EF8A476509F749BFD1AD" #JP Yubi 2811
  28. KEYS+=" 7D1123A022FC90DF389EC65F233196C180B1C28F" #JP Yubi 6643
  29. KEYS+=" F5A3A83B9E65EA3E1A2A48E5FDA763BDDCFAB8AC" #Yubikey 4928206 20160927
  30. KEYS+=" B044B27DCB86641AFE3AB274779D07C54EB7CF85" #Yubikey 4953582 20160927
  31. #KEYS+=" 3FF8DE63855070F8B9CB0D9A67B4CD26470681DA" #Yubikey 4CNano 06931602 20171018
  32. KEYS+=" 1CA168D7E842DFD1745815006F291E6D9AA87738"
  33. KEYS+=" 726D577AFB82E64049B62A8DA763B92AD841A706"
  34. KEYS+=" 04630E42D244BC80717D28D51280F730A9AD633C"
  35. KEYS+=" 5D48805E38B8C2E04103C7728CBD64834BC043EA"
  36. KEYS+=" 8904EE6400E7B7409CE00AA92084C4563F360B45"
  37. KEYS+=" FE65DB157D8BF9E4FEDF50DA927353E2C4507A5B"
  38. KEYS+=" 27CF8E00190D7AF340D8AE55A6C1C5C2083CB579"
  39. GARGS=""
  40. GARGS+=" --trust-model always"
  41. GARGS+=" --compress-algo none"
  42. for KEY in $KEYS ; do
  43. if ! gpg --list-key $KEY 2>&1 > /dev/null ; then
  44. gpg --recv-key --keyserver $KEYSERVER $KEY
  45. fi
  46. GARGS+=" -r $KEY"
  47. done
  48. gpg $GARGS --encrypt "$*"
  49. echo "Backing up to $FN..."
  50. tar -c "$THISDIR" |
  51. pbzip2 |
  52. gpg $GARGS --encrypt --sign - |
  53. pv > "$BACKUPDEST/.$FN.tmp" && \
  54. mv "$BACKUPDEST/.$FN.tmp" "$BACKUPDEST/$FN.gpg" && \
  55. echo "Backup successful."
  56. exit 0