cmd/import-rdiff-backup-cmd.sh

   1 #!/bin/sh
   2
   3 set -e
   4
   5 usage() {
   6     echo "Usage: bup import-rdiff-backup [-n]" \
   7         "<path to rdiff-backup root> <backup name>"
   8     echo "-n,--dry-run: just print what would be done"
   9     exit 1
  10 }
  11
  12 control_c() {
  13     echo "bup import-rdiff-backup: signal 2 received" 1>&2
  14     exit 128
  15 }
  16
  17 trap control_c INT
  18
  19 dry_run=
  20 while [ "$1" = "-n" -o "$1" = "--dry-run" ]; do
  21     dry_run=echo
  22     shift
  23 done
  24
  25 bup()
  26 {
  27     $dry_run "${BUP_MAIN_EXE:=bup}" "$@"
  28 }
  29
  30 snapshot_root=$1
  31 branch=$2
  32
  33 [ -n "$snapshot_root" -a "$#" = 2 ] || usage
  34
  35 if [ ! -e "$snapshot_root/." ]; then
  36     echo "'$snapshot_root' isn't a directory!"
  37     exit 1
  38 fi
  39
  40
  41 backups=$(rdiff-backup --list-increments --parsable-output "$snapshot_root")
  42 backups_count=$(echo "$backups" | wc -l)
  43 counter=1
  44 echo "$backups" |
  45 while read timestamp type; do
  46     tmpdir=$(mktemp -d)
  47
  48     echo "Importing backup from $(date --date=@$timestamp +%c) " \
  49         "($counter / $backups_count)" 1>&2
  50     echo 1>&2
  51
  52     echo "Restoring from rdiff-backup..." 1>&2
  53     rdiff-backup -r $timestamp "$snapshot_root" "$tmpdir"
  54     echo 1>&2
  55
  56     echo "Importing into bup..." 1>&2
  57     TMPIDX=$(mktemp -u)
  58     bup index -ux -f "$tmpidx" "$tmpdir"
  59     bup save --strip --date="$timestamp" -f "$tmpidx" -n "$branch" "$tmpdir"
  60     rm -f "$tmpidx"
  61
  62     rm -rf "$tmpdir"
  63     counter=$((counter+1))
  64     echo 1>&2
  65     echo 1>&2
  66 done