mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-11-26 09:09:36 -05:00
117 lines
3.2 KiB
Go
117 lines
3.2 KiB
Go
package humanize
|
|
|
|
import (
|
|
"fmt"
|
|
"math"
|
|
"sort"
|
|
"time"
|
|
)
|
|
|
|
// Seconds-based time units
|
|
const (
|
|
Day = 24 * time.Hour
|
|
Week = 7 * Day
|
|
Month = 30 * Day
|
|
Year = 12 * Month
|
|
LongTime = 37 * Year
|
|
)
|
|
|
|
// Time formats a time into a relative string.
|
|
//
|
|
// Time(someT) -> "3 weeks ago"
|
|
func Time(then time.Time) string {
|
|
return RelTime(then, time.Now(), "ago", "from now")
|
|
}
|
|
|
|
// A RelTimeMagnitude struct contains a relative time point at which
|
|
// the relative format of time will switch to a new format string. A
|
|
// slice of these in ascending order by their "D" field is passed to
|
|
// CustomRelTime to format durations.
|
|
//
|
|
// The Format field is a string that may contain a "%s" which will be
|
|
// replaced with the appropriate signed label (e.g. "ago" or "from
|
|
// now") and a "%d" that will be replaced by the quantity.
|
|
//
|
|
// The DivBy field is the amount of time the time difference must be
|
|
// divided by in order to display correctly.
|
|
//
|
|
// e.g. if D is 2*time.Minute and you want to display "%d minutes %s"
|
|
// DivBy should be time.Minute so whatever the duration is will be
|
|
// expressed in minutes.
|
|
type RelTimeMagnitude struct {
|
|
D time.Duration
|
|
Format string
|
|
DivBy time.Duration
|
|
}
|
|
|
|
var defaultMagnitudes = []RelTimeMagnitude{
|
|
{time.Second, "now", time.Second},
|
|
{2 * time.Second, "1 second %s", 1},
|
|
{time.Minute, "%d seconds %s", time.Second},
|
|
{2 * time.Minute, "1 minute %s", 1},
|
|
{time.Hour, "%d minutes %s", time.Minute},
|
|
{2 * time.Hour, "1 hour %s", 1},
|
|
{Day, "%d hours %s", time.Hour},
|
|
{2 * Day, "1 day %s", 1},
|
|
{Week, "%d days %s", Day},
|
|
{2 * Week, "1 week %s", 1},
|
|
{Month, "%d weeks %s", Week},
|
|
{2 * Month, "1 month %s", 1},
|
|
{Year, "%d months %s", Month},
|
|
{18 * Month, "1 year %s", 1},
|
|
{2 * Year, "2 years %s", 1},
|
|
{LongTime, "%d years %s", Year},
|
|
{math.MaxInt64, "a long while %s", 1},
|
|
}
|
|
|
|
// RelTime formats a time into a relative string.
|
|
//
|
|
// It takes two times and two labels. In addition to the generic time
|
|
// delta string (e.g. 5 minutes), the labels are used applied so that
|
|
// the label corresponding to the smaller time is applied.
|
|
//
|
|
// RelTime(timeInPast, timeInFuture, "earlier", "later") -> "3 weeks earlier"
|
|
func RelTime(a, b time.Time, albl, blbl string) string {
|
|
return CustomRelTime(a, b, albl, blbl, defaultMagnitudes)
|
|
}
|
|
|
|
// CustomRelTime formats a time into a relative string.
|
|
//
|
|
// It takes two times two labels and a table of relative time formats.
|
|
// In addition to the generic time delta string (e.g. 5 minutes), the
|
|
// labels are used applied so that the label corresponding to the
|
|
// smaller time is applied.
|
|
func CustomRelTime(a, b time.Time, albl, blbl string, magnitudes []RelTimeMagnitude) string {
|
|
lbl := albl
|
|
diff := b.Sub(a)
|
|
|
|
if a.After(b) {
|
|
lbl = blbl
|
|
diff = a.Sub(b)
|
|
}
|
|
|
|
n := sort.Search(len(magnitudes), func(i int) bool {
|
|
return magnitudes[i].D > diff
|
|
})
|
|
|
|
if n >= len(magnitudes) {
|
|
n = len(magnitudes) - 1
|
|
}
|
|
mag := magnitudes[n]
|
|
args := []interface{}{}
|
|
escaped := false
|
|
for _, ch := range mag.Format {
|
|
if escaped {
|
|
switch ch {
|
|
case 's':
|
|
args = append(args, lbl)
|
|
case 'd':
|
|
args = append(args, diff/mag.DivBy)
|
|
}
|
|
escaped = false
|
|
} else {
|
|
escaped = ch == '%'
|
|
}
|
|
}
|
|
return fmt.Sprintf(mag.Format, args...)
|
|
}
|