config.go

package vfsindex

import "time"

var Opt optionState = optionState{
	mergeDuration:      1 * time.Minute,
	cleanAfterMergeing: true,
	useBsearch:         true,
}

type optionState struct {
	column             string
	output             Outputer
	rootDir            string
	idxMergeOnSearch   bool
	cntConcurrent      int
	mergeDuration      time.Duration
	customDecoders     []Decoder
	cleanAfterMergeing bool
	useBsearch         bool
}

//type ReaderOpt map[string]string
type Option func(*optionState)

// ReaderColumn ... config for columname for search/read
func ReaderColumn(s string) Option {

	return func(opt *optionState) {
		opt.column = s
	}
}

func mergeOpt(s *optionState, opts ...Option) {

	for _, opt := range opts {
		opt(s)
	}
}

// RootDir ... set index top directory
func RootDir(s string) Option {
	return func(opt *optionState) {
		opt.rootDir = s
	}
}

type Outputer byte

const (
	JsonOutput = iota
	MapInfOutput
)

func Output(t Outputer) Option {
	return func(opt *optionState) {
		opt.output = t
	}
}

// MergeOnSearch ... enable to merge index on search
func MergeOnSearch(enable bool) Option {
	return func(opt *optionState) {
		opt.idxMergeOnSearch = enable
	}
}

func RegitConcurrent(n int) Option {
	return func(opt *optionState) {
		opt.cntConcurrent = n
	}
}

func MergeDuration(d time.Duration) Option {
	return func(opt *optionState) {
		opt.mergeDuration = d
	}
}

func EnableCleanAfterMerge(t bool) Option {
	return func(opt *optionState) {
		opt.cleanAfterMergeing = t
	}
}

func UseBsearch(t bool) Option {
	return func(opt *optionState) {
		opt.useBsearch = t
		Opt.useBsearch = t
	}
}