1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
use core::fmt;
use std::{ops::ControlFlow, time::Duration};
#[allow(clippy::module_name_repetitions)]
pub fn format_duration_into(dur: Duration, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fn item(unit: &'static str, value: u64) -> ControlFlow<(&'static str, u64)> {
if value > 0 {
ControlFlow::Break((unit, value))
} else {
ControlFlow::Continue(())
}
}
// impl taken and modified from
// https://github.com/tailhook/humantime/blob/master/src/duration.rs#L295-L331
// Copyright (c) 2016 The humantime Developers
fn fmt(f: Duration) -> ControlFlow<(&'static str, u64), ()> {
let secs = f.as_secs();
let nanos = f.subsec_nanos();
let years = secs / 31_557_600; // 365.25d
let year_days = secs % 31_557_600;
let months = year_days / 2_630_016; // 30.44d
let month_days = year_days % 2_630_016;
let days = month_days / 86400;
let day_secs = month_days % 86400;
let hours = day_secs / 3600;
let minutes = day_secs % 3600 / 60;
let seconds = day_secs % 60;
let millis = nanos / 1_000_000;
// a difference from our impl than the original is that
// we only care about the most-significant segment of the duration.
// If the item call returns `Break`, then the `?` will early-return.
// This allows for a very consise impl
item("y", years)?;
item("mo", months)?;
item("d", days)?;
item("h", hours)?;
item("m", minutes)?;
item("s", seconds)?;
item("ms", u64::from(millis))?;
ControlFlow::Continue(())
}
match fmt(dur) {
ControlFlow::Break((unit, value)) => write!(f, "{value}{unit}"),
ControlFlow::Continue(()) => write!(f, "0s"),
}
}
#[allow(clippy::module_name_repetitions)]
pub fn format_duration(f: Duration) -> String {
struct F(Duration);
impl fmt::Display for F {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
format_duration_into(self.0, f)
}
}
F(f).to_string()
}
|
