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128 lines
2.6 KiB
128 lines
2.6 KiB
// Copyright 2014-2018 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style license that can be
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// found in the LICENSE file of the Gogs project (github.com/gogs/gogs).
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package appstats
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import (
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"fmt"
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"math"
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"strings"
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"time"
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)
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// Borrowed from github.com/gogs/gogs/pkg/tool
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// Seconds-based time units
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const (
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Minute = 60
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Hour = 60 * Minute
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Day = 24 * Hour
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Week = 7 * Day
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Month = 30 * Day
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Year = 12 * Month
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)
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func computeTimeDiff(diff int64) (int64, string) {
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diffStr := ""
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switch {
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case diff <= 0:
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diff = 0
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diffStr = "now"
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case diff < 2:
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diff = 0
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diffStr = "1 second"
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case diff < 1*Minute:
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diffStr = fmt.Sprintf("%d seconds", diff)
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diff = 0
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case diff < 2*Minute:
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diff -= 1 * Minute
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diffStr = "1 minute"
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case diff < 1*Hour:
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diffStr = fmt.Sprintf("%d minutes", diff/Minute)
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diff -= diff / Minute * Minute
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case diff < 2*Hour:
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diff -= 1 * Hour
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diffStr = "1 hour"
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case diff < 1*Day:
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diffStr = fmt.Sprintf("%d hours", diff/Hour)
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diff -= diff / Hour * Hour
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case diff < 2*Day:
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diff -= 1 * Day
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diffStr = "1 day"
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case diff < 1*Week:
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diffStr = fmt.Sprintf("%d days", diff/Day)
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diff -= diff / Day * Day
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case diff < 2*Week:
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diff -= 1 * Week
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diffStr = "1 week"
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case diff < 1*Month:
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diffStr = fmt.Sprintf("%d weeks", diff/Week)
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diff -= diff / Week * Week
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case diff < 2*Month:
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diff -= 1 * Month
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diffStr = "1 month"
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case diff < 1*Year:
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diffStr = fmt.Sprintf("%d months", diff/Month)
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diff -= diff / Month * Month
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case diff < 2*Year:
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diff -= 1 * Year
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diffStr = "1 year"
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default:
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diffStr = fmt.Sprintf("%d years", diff/Year)
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diff = 0
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}
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return diff, diffStr
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}
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// TimeSincePro calculates the time interval and generate full user-friendly string.
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func TimeSincePro(then time.Time) string {
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now := time.Now()
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diff := now.Unix() - then.Unix()
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if then.After(now) {
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return "future"
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}
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var timeStr, diffStr string
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for {
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if diff == 0 {
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break
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}
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diff, diffStr = computeTimeDiff(diff)
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timeStr += ", " + diffStr
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}
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return strings.TrimPrefix(timeStr, ", ")
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}
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func logn(n, b float64) float64 {
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return math.Log(n) / math.Log(b)
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}
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func humanateBytes(s uint64, base float64, sizes []string) string {
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if s < 10 {
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return fmt.Sprintf("%d B", s)
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}
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e := math.Floor(logn(float64(s), base))
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suffix := sizes[int(e)]
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val := float64(s) / math.Pow(base, math.Floor(e))
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f := "%.0f"
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if val < 10 {
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f = "%.1f"
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}
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return fmt.Sprintf(f+" %s", val, suffix)
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}
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// FileSize calculates the file size and generate user-friendly string.
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func FileSize(s int64) string {
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sizes := []string{"B", "KB", "MB", "GB", "TB", "PB", "EB"}
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return humanateBytes(uint64(s), 1024, sizes)
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}
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