cmd/import-rsnapshot-cmd.sh

   1 #!/bin/sh
   2 # Does an import of a rsnapshot archive.
   3
   4 cmd_dir="$(cd "$(dirname "$0")" && pwd)" || exit $?
   5
   6 usage() {
   7     echo "Usage: bup import-rsnapshot [-n]" \
   8         "<path to snapshot_root> [<backuptarget>]"
   9     echo "-n,--dry-run: just print what would be done"
  10     exit 1
  11 }
  12
  13 DRY_RUN=
  14 while [ "$1" = "-n" -o "$1" = "--dry-run" ]; do
  15     DRY_RUN=echo
  16     shift
  17 done
  18
  19 bup()
  20 {
  21     $DRY_RUN "$cmd_dir/bup" "$@"
  22 }
  23
  24 SNAPSHOT_ROOT=$1
  25 TARGET=$2
  26
  27 [ -n "$SNAPSHOT_ROOT" -a "$#" -le 2 ] || usage
  28
  29 if [ ! -e "$SNAPSHOT_ROOT/." ]; then
  30     echo "'$SNAPSHOT_ROOT' isn't a directory!"
  31     exit 1
  32 fi
  33
  34
  35 cd "$SNAPSHOT_ROOT" || exit 2
  36
  37 for SNAPSHOT in *; do
  38     [ -e "$SNAPSHOT/." ] || continue
  39     echo "snapshot='$SNAPSHOT'" >&2
  40     for BRANCH_PATH in "$SNAPSHOT/"*; do
  41         BRANCH=$(basename "$BRANCH_PATH") || exit $?
  42         [ -e "$BRANCH_PATH/." ] || continue
  43         [ -z "$TARGET" -o "$TARGET" = "$BRANCH" ] || continue
  44
  45         echo "snapshot='$SNAPSHOT' branch='$BRANCH'" >&2
  46
  47         # Get the snapshot's ctime
  48         DATE=$(perl -e '@a=stat($ARGV[0]) or die "$ARGV[0]: $!";
  49                         print $a[10];' "$BRANCH_PATH")
  50         [ -n "$DATE" ] || exit 3
  51
  52         TMPIDX=bupindex.$BRANCH.tmp
  53         bup index -ux -f "$TMPIDX" "$BRANCH_PATH/" || exit $?
  54         bup save --strip --date="$DATE" \
  55             -f "$TMPIDX" -n "$BRANCH" \
  56             "$BRANCH_PATH/" || exit $?
  57         rm "$TMPIDX" || exit $?
  58     done
  59 done