znpc

#!/usr/bin/env bash
# znp cli for common actions

_znpc_list(){
  zfs list -H -t snap -o name,used,znp:command | grep '@znp_' | column -tl3
}

case "$1" in
  'ls'|'list') _znpc_list ;;
  *)           echo "[ERROR] Unknown action \"$1\""; exit 1 ;;
esac

# TODO:
# - delete SNAP|-a|--all|-l|--latest|-o|--oldest
# - selection from ncurses list?
# - list specific pool
# - search specific command
# - diff [snap1|latest] [snap2|current]

# diff all recursive snapshots
# zfs list -t snapshot -o name | grep ${snapshot_prefix} | cut -d@ -f1 | uniq | xargs -I{} -n1 sh -c 'zfs diff -F {}@${snapshot_prefix}_pre {}@${snapshot_prefi    x}_post 2>/dev/null'

# Destroy created snapshots:
# zfs destroy -r ${snapshot_prefix}_pre && zfs destroy -r ${snapshot_prefix}_post

# Destroy all snapshots created with znp:
# zfs list -H -o name -t snapshot | grep "${zfs_pool}@znp_" | xargs -n1 zfs destroy -r

# Destroy the 10 oldest snapshot pairs created with znp:
# zfs list -H -o name -t snapshot | grep "${zfs_pool}@znp_" | head -20 | xargs -n1 zfs destroy -r