peco --print-query prints out the query as first line

interface.go

@@ -82,6 +82,7 @@ type Peco struct {
 	maxScanBufferSize       int
 	mutex                   sync.Mutex
 	onCancel                string
+	printQuery              bool
 	prompt                  string
 	query                   Query
 	queryExecDelay          time.Duration
@@ -407,6 +408,7 @@ type CLIOptions struct {
 	OptOnCancel        string `long:"on-cancel" description:"specify action on user cancel. 'success' or 'error'.\ndefault is 'success'. This may change in future versions"`
 	OptSelectionPrefix string `long:"selection-prefix" description:"use a prefix instead of changing line color to indicate currently selected lines.\ndefault is to use colors. This option is experimental"`
 	OptExec            string `long:"exec" description:"execute command instead of finishing/terminating peco.\nPlease note that this command will receive selected line(s) from stdin,\nand will be executed via '/bin/sh -c' or 'cmd /c'"`
+	OptPrintQuery      bool   `long:"print-query" descritpion:"print out the current query as first line of output"`
 }
 
 type CLI struct {

peco.go

@@ -532,6 +532,7 @@ func (p *Peco) ApplyConfig(opts CLIOptions) error {
 		p.selectionPrefix = p.config.SelectionPrefix
 	}
 	p.selectOneAndExit = opts.OptSelect1
+	p.printQuery = opts.OptPrintQuery
 	p.initialQuery = opts.OptQuery
 	p.initialFilter = opts.OptInitialFilter
 	if len(p.initialFilter) <= 0 {
@@ -728,6 +729,11 @@ func (p *Peco) PrintResults() {
 	}()
 
 	var buf bytes.Buffer
+
+	if p.printQuery {
+		buf.WriteString(p.Query().String())
+		buf.WriteByte('\n')
+	}
 	for line := range p.ResultCh() {
 		buf.WriteString(line.Output())
 		buf.WriteByte('\n')