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Edit File: _zpool

#compdef zpool

_zpool() {
	local -a subcmds fields

subcmds=(
		  create destroy add remove list iostat status online
		  offline clear attach detach replace scrub import export 
		  upgrade history get set
	)

fields=(
		name\:"Pool name" size\:"Total size" used\:"Space used"
		available\:"Space available" capacity\:"Space used (percentage)"
		health\:"Health status"
	)

properties=(
		"bootfs:value:"
		"autoreplace:value:(on off)"
		"delegation:value:(on off)"
	)
	propnames=( ${properties%%:*} )

import_properties=(
		xattr
		copies
		shareiscsi
		canmount
		share
		sharenfs
		userprop
		mount
	)

if [[ $service == "zpool" ]]; then
		_arguments -C -A "-*" \
			'-\?[Help]' \
			'*::command:->subcmd' && return 0

if (( CURRENT == 1 )); then
			_wanted commands expl "zpool subcommand" compadd -a subcmds
			return
		fi
		service="$words[1]"
		curcontext="${curcontext%:*}=$service:"
	fi

case $service in
	(clear)
		_arguments \
			':pool name:_zfs_pool' \
			'*:virtual device:_files'
		;;

(create)
		# TODO: investigate better vdev handling
		_arguments -A "-*" \
			'-f[Force use of in-use devices]' \
			'-n[Display configuration without creating pool]' \
			'-R[Use alternate root]:alternate root:_files -/' \
			'-m[Set mountpoint for root dataset]:mountpoint:' \
			':pool name:' \
			'*:virtual device:_files'
		;;

(destroy)
		_arguments -A "-*" \
			'-f[Force active datasets to be unmounted]' \
			':pool name:_zfs_pool'
		;;

(add)
		_arguments -A "-*" \
			'-f[Force use of in-use devices]' \
			'-n[Display configuration without modifying pool]' \
			':pool name:_zfs_pool' \
			'*:virtual device:_files'
		;;

(list)
		_arguments \
			'-H[Scripted mode]' \
			'-o[Fields to list]:field:_values -s , "field" ${^fields/\:/[}\]' \
			'::pool name:_zfs_pool'
		;;

(iostat)
		_arguments -A "-*" \
			'-v[Verbose statistics]' \
			'*::pool name:_zfs_pool' \
			'::interval:' \
			'::count:'
		;;

(status)
		_arguments -A "-*" \
			'-v[Verbose information]' \
			'-x[Show only unhealthy pools]' \
			'*::pool name:_zfs_pool'
		;;

(offline)
		_arguments -A "-*" \
			'-t[Offline until next reboot]' \
			':pool name:_zfs_pool' \
			'*:virtual device:_files'
		;;

(online)
		_arguments \
			':pool name:_zfs_pool' \
			'*:virtual device:_files'
		;;

(attach)
		# TODO: first device should choose first from existing.
		_arguments \
			'-f[Force attach, even if in use]' \
			':pool name:_zfs_pool' \
			':virtual device:_files' \
			':virtual device:_files'
		;;

(detach)
		_arguments \
			':pool name:_zfs_pool' \
			':virtual device:_files'
		;;

(replace)
		_arguments -A "-*" \
			'-f[Force attach, even if in use]' \
			':pool name:_zfs_pool' \
			':virtual device:_files' \
			'::virtual device:_files'
		;;

(scrub)
		_arguments -A "-*" \
			'-s[Stop scrubbing]' \
			'*:pool name:_zfs_pool'
		;;

(export)
		_arguments -A "-*" \
			'-f[Forcefully unmount all datasets]' \
			'*:pool name:_zfs_pool'
		;;

(import)
		# TODO: -o should complete options
		_arguments -A "-*" \
			'*-d[Search for devices or files in directory]:_files -/' \
			'-D[Destroyed pools]' \
			'-f[Force import]' \
			- set1 \
			'-o[Mount options]' \
			'-p[Set property]:property:_values -s , "property" $import_properties' \
			'-R[Alternate root]:_files -/' \
			'*:pool name or id:_zfs_pool' \
			'::new pool name:' \
			- set2 \
			'-a[All pools]'
		;;

(get)
		_arguments -A "-*" \
			':property:_values -s , "property" $propnames all' \
			'*:pool name:_zfs_pool'
		;;

(set)
		_arguments -A "-*" \
			':property:_values -s , "property" $properties' \
			'*:pool name:_zfs_pool'
		;;

(upgrade)
		_arguments -A "-*" \
			- set1 \
			'-v[Display ZFS versions and descriptions]' \
			- set2 \
			'-a[Upgrade all pools]' \
			'*:pool name:_zfs_pool'
		;;

(history)
		_arguments -A "-*" \
			'-i[Display internal events]' \
			'-l[Long format]' \
			'*:pool name:_zfs_pool'
		;;

(*)
		_message "unknown zpool subcommand: $service"
		;;
	esac
}

_zpool "$@"

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