| David K. Bainbridge | 215e024 | 2017-09-05 23:18:24 -0700 | [diff] [blame] | 1 | // Package units provides helper function to parse and print size and time units |
| 2 | // in human-readable format. |
| 3 | package units |
| 4 | |
| 5 | import ( |
| 6 | "fmt" |
| 7 | "time" |
| 8 | ) |
| 9 | |
| 10 | // HumanDuration returns a human-readable approximation of a duration |
| 11 | // (eg. "About a minute", "4 hours ago", etc.). |
| 12 | func HumanDuration(d time.Duration) string { |
| 13 | if seconds := int(d.Seconds()); seconds < 1 { |
| 14 | return "Less than a second" |
| 15 | } else if seconds == 1 { |
| 16 | return "1 second" |
| 17 | } else if seconds < 60 { |
| 18 | return fmt.Sprintf("%d seconds", seconds) |
| 19 | } else if minutes := int(d.Minutes()); minutes == 1 { |
| 20 | return "About a minute" |
| 21 | } else if minutes < 46 { |
| 22 | return fmt.Sprintf("%d minutes", minutes) |
| 23 | } else if hours := int(d.Hours() + 0.5); hours == 1 { |
| 24 | return "About an hour" |
| 25 | } else if hours < 48 { |
| 26 | return fmt.Sprintf("%d hours", hours) |
| 27 | } else if hours < 24*7*2 { |
| 28 | return fmt.Sprintf("%d days", hours/24) |
| 29 | } else if hours < 24*30*2 { |
| 30 | return fmt.Sprintf("%d weeks", hours/24/7) |
| 31 | } else if hours < 24*365*2 { |
| 32 | return fmt.Sprintf("%d months", hours/24/30) |
| 33 | } |
| 34 | return fmt.Sprintf("%d years", int(d.Hours())/24/365) |
| 35 | } |