icebergs/base/nfs/trash.go

package nfs

import (
	"path"

	ice "shylinux.com/x/icebergs"
	"shylinux.com/x/icebergs/base/mdb"
	kit "shylinux.com/x/toolkits"
)

func _trash_create(m *ice.Message, from string) {
	if m.Warn(from == "", ice.ErrNotValid, FROM) {
		return
	}
	s, e := StatFile(m, from)
	if m.Warn(e, ice.ErrNotFound, from) {
		return
	}
	p := path.Join(ice.VAR_TRASH, path.Base(from))
	if !s.IsDir() {
		if f, e := OpenFile(m, from); m.Assert(e) {
			defer f.Close()
			p = path.Join(ice.VAR_TRASH, kit.HashsPath(f))
		}
	}
	MkdirAll(m, path.Dir(p))
	if RemoveAll(m, p); !m.Warn(Rename(m, from, p)) {
		mdb.HashCreate(m, FROM, from, FILE, p)
		m.Result(p)
	}
}

const TRASH = "trash"

func init() {
	Index.MergeCommands(ice.Commands{
		TRASH: {Name: "trash hash auto prunes", Help: "回收站", Actions: ice.MergeActions(ice.Actions{
			mdb.REVERT: {Hand: func(m *ice.Message, arg ...string) {
				Rename(m, m.Option(FILE), m.Option(FROM))
				mdb.HashRemove(m, m.OptionSimple(mdb.HASH))
				m.ProcessRefresh()
			}},
			mdb.CREATE: {Name: "create from", Hand: func(m *ice.Message, arg ...string) {
				_trash_create(m, m.Option(FROM))
			}},
			mdb.REMOVE: {Hand: func(m *ice.Message, arg ...string) {
				Remove(m, m.Option(FILE))
				mdb.HashRemove(m, m.OptionSimple(mdb.HASH))
			}},
			mdb.PRUNES: {Hand: func(m *ice.Message, arg ...string) {
				mdb.HashPrunes(m, nil).Tables(func(value ice.Maps) { Remove(m, value[FILE]) })
			}},
		}, mdb.HashAction(mdb.SHORT, FROM, mdb.FIELD, "time,hash,from,file")), Hand: func(m *ice.Message, arg ...string) {
			if mdb.HashSelect(m, arg...); len(arg) == 0 || !ExistsFile(m, arg[0]) {
				m.PushAction(mdb.REVERT, mdb.REMOVE)
				return
			}
			_trash_create(m, arg[0])
		}},
	})
}