58 lines
943 B
Go
58 lines
943 B
Go
// Copyright (C) 2021 Storj Labs, Inc.
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// See LICENSE for copying information.
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package main
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import (
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"fmt"
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"io"
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"strings"
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"text/tabwriter"
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)
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type tabbedWriter struct {
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tw *tabwriter.Writer
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headers []string
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wrote bool
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}
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func newTabbedWriter(w io.Writer, headers ...string) *tabbedWriter {
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return &tabbedWriter{
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tw: tabwriter.NewWriter(w, 4, 4, 4, ' ', 0),
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headers: headers,
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}
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}
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func (t *tabbedWriter) Done() {
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if t.wrote {
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_ = t.tw.Flush()
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}
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}
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func (t *tabbedWriter) WriteLine(parts ...interface{}) {
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if !t.wrote {
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if len(t.headers) > 0 {
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fmt.Fprintln(t.tw, strings.Join(t.headers, "\t"))
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}
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t.wrote = true
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}
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for i, part := range parts {
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if i > 0 {
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fmt.Fprint(t.tw, "\t")
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}
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fmt.Fprint(t.tw, toString(part))
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}
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fmt.Fprintln(t.tw)
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}
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func toString(x interface{}) string {
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switch x := x.(type) {
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case rune:
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return string(x)
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case string:
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return x
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default:
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return fmt.Sprint(x)
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}
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}
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