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initial commit
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#!/usr/bin/env bash
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SCRIPT_PATH=$(realpath -s "$0")
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SCRIPT_DIR=$(dirname "$SCRIPT_PATH")
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SCRIPT=$(basename "$SCRIPT_PATH")
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ETC_DIR="/etc/$SCRIPT"
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function usage() {
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cat <<EOF
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Usage: $SCRIPT COMMAND
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Helper script for proxmox-backup-client.
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Available commands:
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backup Run backup and print output to screen.
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backup-cron Run backup and suppress output on success.
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list List groups, latest snapshots and archives.
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snapshot-list [GROUP] List snapshots, sizes and archives.
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catalog-shell [SNAPSHOT [ARCHIVE]] Run interactive shell to explore arhive contents
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and restore files/dirs selectively.
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mount [SNAPSHOT [ARCHIVE [TARGET]]] Mount snapshot archive locally.
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install [--update] Install proxmox-backup-client binary and dependencies.
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Use --update to update the currently installed binary.
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EOF
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}
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function cleanup_tmpdir() {
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rm -r "$tmpdir"
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trap - EXIT
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}
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function pbc-install() {
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local update=${1:-false}
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if $update || [ ! -f "$PBC" ]; then
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local pkgfile=$(wget -q -O - "$PBC_DOWNLOAD_URL/" | grep proxmox-backup-client-static_ | tail -n 1 | sed 's#.*href="##g;s#".*##g;')
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[ -z "$pkgfile" ] && echo "Unable to determine current package file!" >&2 && exit 1
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tmpdir=$(mktemp -d)
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trap cleanup_tmpdir EXIT
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echo "Downloading $PBC_DOWNLOAD_URL/$pkgfile ..."
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! wget -q -O "$tmpdir/$pkgfile" "$PBC_DOWNLOAD_URL/$pkgfile" && echo "Error downloading package file!" >&2 && exit 2
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echo "Extracting $pkgfile ..."
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! dpkg-deb -x "$tmpdir/$pkgfile" "$tmpdir/" && echo "Error extracting package file!" >&2 && exit 3
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echo "Installing proxmox-backup-client binary to $PBC ..."
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! cp "$tmpdir/usr/bin/proxmox-backup-client" "$PBC" && echo "Error copying proxmox-backup-client binary!" >&2 && exit 4
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local version=$("$PBC" version | head -n 1)
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(( $? != 0 )) && echo "Error running $PBC version ... exited with rc=$?" >&2 && exit 5
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echo "Successfully installed proxmox-backup-$version"
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else
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local version=$("$PBC" version | head -n 1)
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(( $? != 0 )) && echo "Error running $PBC version ... exited with rc=$?" >&2 && exit 5
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echo "Binary proxmox-backup-client ($version) already installed"
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fi
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local jq=$(which jq)
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if [ -z "$jq" ]; then
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echo "Installing package jq ..."
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! apt-get install jq && echo "Error installing jq package!" >&2 && exit 6
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else
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echo "Package jq already installed"
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fi
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if [ ! -d "$ETC_DIR" ]; then
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echo "Creating config directory $ETC_DIR ..."
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mkdir -p "$ETC_DIR"
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fi
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if [ -f "$SCRIPT_DIR/config.example" ]; then
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if $update || [ ! -f "$ETC_DIR/config.example" ]; then
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echo "Copy example config to $ETC_DIR/config.example ..."
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cp "$SCRIPT_DIR/config.example" "$ETC_DIR/config.example"
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fi
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fi
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echo "Installation successful!"
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}
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function pbc-backup() {
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"$PBC" backup --ns "$PBS_NAMESPACE" "${BACKUP[@]}"
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return $?
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}
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function pbc-list() {
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"$PBC" list --ns "$PBS_NAMESPACE" "$@"
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return $?
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}
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function pbc-snapshot-list() {
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"$PBC" snapshot list --ns "$PBS_NAMESPACE" "$@"
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return $?
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}
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function pbc-files() {
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"$PBC" files --ns "$PBS_NAMESPACE" "$@"
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return $?
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}
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function pbc-catalog-shell() {
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"$PBC" catalog shell --ns "$PBS_NAMESPACE" "$@"
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return $?
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}
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function pbc-mount() {
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"$PBC" mount --ns "$PBS_NAMESPACE" "$@"
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return $?
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}
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function get_group_names() {
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pbc-list --output-format json | jq -r '.[] | "\(.["backup-type"])/\(.["backup-id"])"'
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}
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function get_snapshot_names() {
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pbc-snapshot-list --output-format json | jq -r '.[] | "\(.["backup-type"])/\(.["backup-id"])/\(.["backup-time"] | todateiso8601)"'
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}
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function get_snapshot_files() {
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pbc-files "$1" --output-format json | jq -r '.[] | select(.filename | endswith(".pxar.didx")) | .filename | rtrimstr(".didx")' | sort
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}
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function arr_contains() {
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search=$1
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shift
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[ -z "$search" ] && return 1
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while [ -n "$1" ]; do
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[ "$1" == "$search" ] && return 0
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shift
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done
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return 1
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}
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function may_select() {
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value=$1
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shift
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(( $# == 0 )) && echo "Error: no values to select" >&2 && return 1
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if [ -z "$value" ]; then
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if (( $# == 1 )); then
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value=$1
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else
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sorted=($(printf "%s\n" "$@" | sort))
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select value in "${sorted[@]}"; do
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[ -n "$value" ] && break
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done
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fi
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elif ! arr_contains "$value" "$@"; then
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return 1
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fi
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echo "$value"
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return 0
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}
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action=''
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configfile=''
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args=()
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while [ -n "$1" ]; do
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opt=$1
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shift
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if [ -z "$action" ]; then
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case "$opt" in
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backup|backup-cron|list|snapshot-list|catalog-shell|mount|install)
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action=$opt
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;;
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-c|--config)
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configfile=$1
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shift
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[ -z "$configfile" ] && usage && exit 255
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;;
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-h|--help)
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usage
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exit 0
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;;
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*)
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usage
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exit 255
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;;
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esac
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elif [ "$action" == "install" ]; then
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case "$opt" in
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-u|--update)
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args+=('true')
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;;
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*)
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usage
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exit 255
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;;
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esac
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else
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args+=("$opt")
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fi
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done
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configfile=${configfile:-$ETC_DIR/config}
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if [ "$action" == 'install' ]; then
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if [ -f "$configfile" ]; then
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source "$configfile" || exit $?
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fi
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else
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source "$configfile" || exit $?
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[ ! -f "$PBC" ] && echo "Error: $PBC: no such file" >&2 && exit 1
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[ ! -e "$PBC" ] && echo "Error: $PBC: not executable" >&2 && exit 1
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fi
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PBC=${PBC:-/usr/bin/proxmox-backup-client}
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PBC_DOWNLOAD_URL=${PBC_DOWNLOAD_URL:-http://download.proxmox.com/debian/pbs-client/dists/trixie/main/binary-amd64}
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export PBS_REPOSITORY="$PBS_USER@${PBS_SERVER:-8007}:$PBS_DATASTORE"
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export PBS_PASSWORD="$PBS_PASSWORD"
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case "$action" in
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backup)
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pbc-backup || exit $?
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;;
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backup-cron)
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output=$(pbc-backup 2>&1)
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rc=$?
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(( $rc != 0 )) && echo "$output"
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;;
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list)
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pbc-list "${args[@]}" || exit $?
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;;
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snapshot-list)
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readarray -t groups < <(get_group_names)
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(( ${#groups[@]} == 0 )) && echo "no snapshot groups found" && exit 0
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group=${args[0]}
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args=("${args[@]:1}")
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PS3="Snapshot group [1-${#groups[@]}]: "
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group=$(may_select "$group" "${groups[@]}")
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(( $? != 0 )) && echo "Error: invalid group" >&2 && exit 1
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echo
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pbc-snapshot-list "$group" "${args[@]}" || exit $?
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;;
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catalog-shell)
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readarray -t snapshots < <(get_snapshot_names)
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(( ${#snapshots[@]} == 0 )) && echo "no snapshots found" && exit 0
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snapshot=${args[0]}
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args=("${args[@]:1}")
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PS3="Snapshot [1-${#snapshots[@]}]: "
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snapshot=$(may_select "$snapshot" "${snapshots[@]}")
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(( $? != 0 )) && echo "Error: invalid snapshot" >&2 && exit 1
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readarray -t archives < <(get_snapshot_files "$snapshot")
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(( ${#archives[@]} == 0 )) && echo "no archives found" && exit 0
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archive=${args[0]}
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args=("${args[@]:1}")
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PS3="Archive [1-${#archives[@]}]: "
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archive=$(may_select "$archive" "${archives[@]}")
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(( $? != 0 )) && echo "Error: invalid archive" >&2 && exit 1
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echo
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pbc-catalog-shell "$snapshot" "$archive" || exit $?
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;;
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mount)
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readarray -t snapshots < <(get_snapshot_names)
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(( ${#snapshots[@]} == 0 )) && echo "no snapshots found" && exit 0
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snapshot=${args[0]}
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args=("${args[@]:1}")
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PS3="Snapshot [1-${#snapshots[@]}]: "
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snapshot=$(may_select "$snapshot" "${snapshots[@]}")
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(( $? != 0 )) && echo "Error: invalid snapshot" >&2 && exit 1
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readarray -t archives < <(get_snapshot_files "$snapshot")
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(( ${#archives[@]} == 0 )) && echo "no archives found" && exit 0
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archive=${args[0]}
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args=("${args[@]:1}")
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PS3="Archive [1-${#archives[@]}]: "
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archive=$(may_select "$archive" "${archives[@]}")
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(( $? != 0 )) && echo "Error: invalid archive" >&2 && exit 1
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target=${args[0]}
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args=("${args[@]:1}")
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if [ -z "$target" ]; then
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while [ -z "$target" ]; do
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echo -n "Target path: "
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read -r target
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[ -d "$target" ] && break
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echo -e "\nError: $target: no such directory\n" >&2
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target=''
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done
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elif [ ! -d "$target" ]; then
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echo "Error: $target: no such directory" >&2
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exit 1
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fi
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echo
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pbc-mount "$snapshot" "$archive" "$target" || exit $?
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;;
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install)
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pbc-install "${args[@]}" || exit $?
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;;
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*)
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usage
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exit 1
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;;
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esac
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