266 lines
6.4 KiB
Go
266 lines
6.4 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package base
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import (
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"crypto/md5"
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"encoding/hex"
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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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// Encode string to md5 hex value
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func EncodeMd5(str string) string {
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m := md5.New()
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m.Write([]byte(str))
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return hex.EncodeToString(m.Sum(nil))
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}
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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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// TimeSince calculates the time interval and generate user-friendly string.
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func TimeSince(then time.Time) string {
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now := time.Now()
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lbl := "ago"
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diff := now.Unix() - then.Unix()
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if then.After(now) {
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lbl = "from now"
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diff = then.Unix() - now.Unix()
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}
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switch {
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case diff <= 0:
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return "now"
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case diff <= 2:
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return fmt.Sprintf("1 second %s", lbl)
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case diff < 1*Minute:
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return fmt.Sprintf("%d seconds %s", diff, lbl)
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case diff < 2*Minute:
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return fmt.Sprintf("1 minute %s", lbl)
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case diff < 1*Hour:
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return fmt.Sprintf("%d minutes %s", diff/Minute, lbl)
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case diff < 2*Hour:
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return fmt.Sprintf("1 hour %s", lbl)
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case diff < 1*Day:
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return fmt.Sprintf("%d hours %s", diff/Hour, lbl)
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case diff < 2*Day:
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return fmt.Sprintf("1 day %s", lbl)
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case diff < 1*Week:
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return fmt.Sprintf("%d days %s", diff/Day, lbl)
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case diff < 2*Week:
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return fmt.Sprintf("1 week %s", lbl)
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case diff < 1*Month:
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return fmt.Sprintf("%d weeks %s", diff/Week, lbl)
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case diff < 2*Month:
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return fmt.Sprintf("1 month %s", lbl)
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case diff < 1*Year:
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return fmt.Sprintf("%d months %s", diff/Month, lbl)
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case diff < 18*Month:
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return fmt.Sprintf("1 year %s", lbl)
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}
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return then.String()
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}
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const (
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Byte = 1
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KByte = Byte * 1024
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MByte = KByte * 1024
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GByte = MByte * 1024
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TByte = GByte * 1024
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PByte = TByte * 1024
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EByte = PByte * 1024
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)
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var bytesSizeTable = map[string]uint64{
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"b": Byte,
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"kb": KByte,
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"mb": MByte,
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"gb": GByte,
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"tb": TByte,
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"pb": PByte,
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"eb": EByte,
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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("%dB", 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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// Subtract deals with subtraction of all types of number.
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func Subtract(left interface{}, right interface{}) interface{} {
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var rleft, rright int64
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var fleft, fright float64
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var isInt bool = true
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switch left.(type) {
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case int:
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rleft = int64(left.(int))
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case int8:
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rleft = int64(left.(int8))
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case int16:
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rleft = int64(left.(int16))
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case int32:
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rleft = int64(left.(int32))
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case int64:
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rleft = left.(int64)
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case float32:
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fleft = float64(left.(float32))
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isInt = false
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case float64:
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fleft = left.(float64)
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isInt = false
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}
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switch right.(type) {
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case int:
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rright = int64(right.(int))
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case int8:
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rright = int64(right.(int8))
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case int16:
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rright = int64(right.(int16))
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case int32:
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rright = int64(right.(int32))
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case int64:
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rright = right.(int64)
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case float32:
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fright = float64(left.(float32))
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isInt = false
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case float64:
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fleft = left.(float64)
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isInt = false
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}
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if isInt {
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return rleft - rright
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} else {
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return fleft + float64(rleft) - (fright + float64(rright))
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}
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}
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// DateFormat pattern rules.
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var datePatterns = []string{
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// year
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"Y", "2006", // A full numeric representation of a year, 4 digits Examples: 1999 or 2003
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"y", "06", //A two digit representation of a year Examples: 99 or 03
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// month
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"m", "01", // Numeric representation of a month, with leading zeros 01 through 12
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"n", "1", // Numeric representation of a month, without leading zeros 1 through 12
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"M", "Jan", // A short textual representation of a month, three letters Jan through Dec
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"F", "January", // A full textual representation of a month, such as January or March January through December
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// day
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"d", "02", // Day of the month, 2 digits with leading zeros 01 to 31
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"j", "2", // Day of the month without leading zeros 1 to 31
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// week
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"D", "Mon", // A textual representation of a day, three letters Mon through Sun
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"l", "Monday", // A full textual representation of the day of the week Sunday through Saturday
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// time
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"g", "3", // 12-hour format of an hour without leading zeros 1 through 12
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"G", "15", // 24-hour format of an hour without leading zeros 0 through 23
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"h", "03", // 12-hour format of an hour with leading zeros 01 through 12
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"H", "15", // 24-hour format of an hour with leading zeros 00 through 23
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"a", "pm", // Lowercase Ante meridiem and Post meridiem am or pm
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"A", "PM", // Uppercase Ante meridiem and Post meridiem AM or PM
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"i", "04", // Minutes with leading zeros 00 to 59
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"s", "05", // Seconds, with leading zeros 00 through 59
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// time zone
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"T", "MST",
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"P", "-07:00",
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"O", "-0700",
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// RFC 2822
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"r", time.RFC1123Z,
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}
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// Parse Date use PHP time format.
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func DateParse(dateString, format string) (time.Time, error) {
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replacer := strings.NewReplacer(datePatterns...)
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format = replacer.Replace(format)
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return time.ParseInLocation(format, dateString, time.Local)
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}
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// Date takes a PHP like date func to Go's time format.
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func DateFormat(t time.Time, format string) string {
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replacer := strings.NewReplacer(datePatterns...)
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format = replacer.Replace(format)
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return t.Format(format)
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}
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type Actioner interface {
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GetOpType() int
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GetActUserName() string
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GetRepoName() string
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}
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// ActionIcon accepts a int that represents action operation type
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// and returns a icon class name.
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func ActionIcon(opType int) string {
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switch opType {
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case 1: // Create repository.
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return "plus-circle"
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default:
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return "invalid type"
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}
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}
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const (
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CreateRepoTpl = `<a href="/user/%s">%s</a> created repository <a href="/%s/%s">%s</a>`
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)
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// ActionDesc accepts int that represents action operation type
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// and returns the description.
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func ActionDesc(act Actioner) string {
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actUserName := act.GetActUserName()
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repoName := act.GetRepoName()
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switch act.GetOpType() {
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case 1: // Create repository.
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return fmt.Sprintf(CreateRepoTpl, actUserName, actUserName, actUserName, repoName, repoName)
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default:
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return "invalid type"
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}
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}
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