forked from cerc-io/ipld-eth-server
41 lines
1.4 KiB
Go
41 lines
1.4 KiB
Go
// Copyright 2016 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package common
|
|
|
|
import (
|
|
"fmt"
|
|
"regexp"
|
|
"strings"
|
|
"time"
|
|
)
|
|
|
|
// PrettyDuration is a pretty printed version of a time.Duration value that cuts
|
|
// the unnecessary precision off from the formatted textual representation.
|
|
type PrettyDuration time.Duration
|
|
|
|
var prettyDurationRe = regexp.MustCompile(`\.[0-9]+`)
|
|
|
|
// String implements the Stringer interface, allowing pretty printing of duration
|
|
// values rounded to three decimals.
|
|
func (d PrettyDuration) String() string {
|
|
label := fmt.Sprintf("%v", time.Duration(d))
|
|
if match := prettyDurationRe.FindString(label); len(match) > 4 {
|
|
label = strings.Replace(label, match, match[:4], 1)
|
|
}
|
|
return label
|
|
}
|