human_time/
lib.rs

1#![allow(clippy::unwrap_used)]
2
3use std::time::Duration;
4
5pub use human_time_macros::elapsed;
6
7const UNITS: [(&str, u128); 6] = [
8    ("d", 86400000000),
9    ("h", 3600000000),
10    ("m", 60000000),
11    ("s", 1000000),
12    ("ms", 1000),
13    ("μs", 1),
14];
15
16pub trait ToHumanTimeString {
17    fn to_human_time_string(&self) -> String;
18    fn to_human_time_string_with_format<F, F1>(&self, time_fmt: F, res_fmt: F1) -> String
19    where
20        F: Fn(u128, &str) -> String,
21        F1: Fn(String, String) -> String;
22}
23
24impl ToHumanTimeString for Duration {
25    fn to_human_time_string(&self) -> String {
26        crate::human_time(*self)
27    }
28
29    fn to_human_time_string_with_format<F, F1>(&self, time_fmt: F, res_fmt: F1) -> String
30    where
31        F: Fn(u128, &str) -> String,
32        F1: Fn(String, String) -> String,
33    {
34        human_time_with_format(*self, time_fmt, res_fmt)
35    }
36}
37
38pub fn human_time(d: Duration) -> String {
39    human_time_with_format(
40        d,
41        |n, unit| format!("{}{}", n, unit),
42        |acc, item| format!("{},{}", acc, item),
43    )
44}
45
46pub fn human_time_with_format<F, F1>(d: Duration, time_fmt: F, res_fmt: F1) -> String
47where
48    F: Fn(u128, &str) -> String,
49    F1: Fn(String, String) -> String,
50{
51    let mut map: Vec<(u128, &str)> = Vec::new();
52    let mut μs = d.as_micros();
53    for (unit, n_μs) in UNITS {
54        map.push((μs / n_μs, unit));
55        μs %= n_μs;
56    }
57
58    match map
59        .into_iter()
60        .filter_map(|(n, u)| if n > 0 { Some(time_fmt(n, u)) } else { None })
61        .reduce(res_fmt)
62    {
63        Some(val) => val,
64        None => time_fmt(0, UNITS.last().unwrap().0),
65    }
66}
human_time/lib.rs

human_time/
lib.rs
