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// Copyright (C) 2015 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
// +build ignore
// Neatly format benchmarking output which otherwise looks like crap.
package main
import (
"bufio"
"fmt"
"os"
"regexp"
"strings"
"text/tabwriter"
)
var (
benchRe = regexp.MustCompile(`^(Bench[^\s]+)\s+(\d+)\s+(\d+ ns/op)\s*(\d+ B/op)?\s*(\d+ allocs/op)?`)
)
func main() {
tw := tabwriter.NewWriter(os.Stdout, 1, 1, 1, ' ', 0)
br := bufio.NewScanner(os.Stdin)
n := 0
for br.Scan() {
line := br.Text()
if match := benchRe.FindStringSubmatch(line); match != nil {
n++
for i := range match[2:] {
match[2+i] = fmt.Sprintf("%16s", match[2+i])
}
tw.Write([]byte(strings.Join(match[1:], "\t") + "\n"))
} else if n > 0 && strings.HasPrefix(line, "ok") {
n = 0
tw.Flush()
fmt.Printf("%s\n\n", line)
}
}
tw.Flush()
}
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