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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| use std::num::ParseIntError; | ||
| use std::time::Duration; | ||
| use std::str::FromStr; | ||
|
|
||
| pub trait DurationExt { | ||
| fn format_colon_separated(&self) -> String; | ||
| } | ||
|
|
||
| impl DurationExt for Duration { | ||
| fn format_colon_separated(&self) -> String { | ||
| let total_seconds = self.as_secs(); | ||
| let hours = total_seconds / 3600; | ||
| let minutes = (total_seconds % 3600) / 60; | ||
| let seconds = total_seconds % 60; | ||
| let millis = self.subsec_millis(); | ||
|
|
||
| format!("{:02}:{:02}:{:02}:{:03}", hours, minutes, seconds, millis) | ||
| } | ||
| } | ||
|
|
||
| #[derive(Debug, PartialEq, Eq)] | ||
| enum TimeUnit { | ||
| Hours, | ||
| Minutes, | ||
| Seconds, | ||
| Milliseconds, | ||
| } | ||
|
|
||
| impl TimeUnit { | ||
| fn parse(s: &str) -> Option<Self> { | ||
| match s.to_lowercase().as_str() { | ||
| "h" | "hr" | "hrs" | "hours" => Some(Self::Hours), | ||
| "m" | "min" | "mins" | "minutes" => Some(Self::Minutes), | ||
| "s" | "sec" | "secs" | "seconds" => Some(Self::Seconds), | ||
| "ms" | "milli" | "millis" | "milliseconds" => Some(Self::Milliseconds), | ||
| "" => Some(Self::Seconds), | ||
| _ => None, | ||
| } | ||
| } | ||
|
|
||
| fn to_duration(&self, count: u64) -> Duration { | ||
| match self { | ||
| Self::Hours => Duration::from_secs(count * 3600), | ||
| Self::Minutes => Duration::from_secs(count * 60), | ||
| Self::Seconds => Duration::from_secs(count), | ||
| Self::Milliseconds => Duration::from_millis(count), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #[derive(Debug, PartialEq)] | ||
| pub enum ParseDurationComponentError { | ||
| BadCount(ParseIntError), | ||
| BadUnit, | ||
| } | ||
|
|
||
| impl std::fmt::Display for ParseDurationComponentError { | ||
| fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { | ||
| match self { | ||
| ParseDurationComponentError::BadCount(e) => write!(f, "failed to parse count: {}", e), | ||
| ParseDurationComponentError::BadUnit => write!(f, "invalid unit"), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl std::error::Error for ParseDurationComponentError { | ||
| fn source(&self) -> Option<&(dyn std::error::Error + 'static)> { | ||
| match self { | ||
| ParseDurationComponentError::BadCount(e) => Some(e), | ||
| ParseDurationComponentError::BadUnit => None, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| pub fn parse_duration_component(component: &str) -> Result<Duration, ParseDurationComponentError> { | ||
| use ParseDurationComponentError::*; | ||
| let split_point = component.find(|c: char| !c.is_digit(10)).unwrap_or(component.len()); | ||
| let (count_str, unit_str) = component.split_at(split_point); | ||
| let count = u64::from_str(count_str).map_err(|e| BadCount(e))?; | ||
| let unit = TimeUnit::parse(unit_str).ok_or(BadUnit)?; | ||
| Ok(unit.to_duration(count)) | ||
| } | ||
|
|
||
| #[cfg(test)] | ||
| mod tests { | ||
| use super::*; | ||
|
|
||
| #[test] | ||
| fn test_parse_duration() { | ||
| let cases = vec![ | ||
| ("1".to_string(), Ok(Duration::from_secs(1))), | ||
| ("5s".to_string(), Ok(Duration::from_secs(5))), | ||
| ("12".to_string(), Ok(Duration::from_secs(12))), | ||
| ("30".to_string(), Ok(Duration::from_secs(30))), | ||
| ("500ms".to_string(), Ok(Duration::from_millis(500))), | ||
| ("30s".to_string(), Ok(Duration::from_secs(30))), | ||
| ("5sec".to_string(), Ok(Duration::from_secs(5))), | ||
| ("30sec".to_string(), Ok(Duration::from_secs(30))), | ||
| ("5secs".to_string(), Ok(Duration::from_secs(5))), | ||
| ("1m".to_string(), Ok(Duration::from_secs(60))), | ||
| ("5m".to_string(), Ok(Duration::from_secs(5 * 60))), | ||
| ("5min".to_string(), Ok(Duration::from_secs(5 * 60))), | ||
| ("5mins".to_string(), Ok(Duration::from_secs(5 * 60))), | ||
| ("15m".to_string(), Ok(Duration::from_secs(15 * 60))), | ||
| ("15mins".to_string(), Ok(Duration::from_secs(15 * 60))), | ||
| ("2h".to_string(), Ok(Duration::from_secs(2 * 3600))), | ||
| ]; | ||
|
|
||
| for (input, expected) in cases { | ||
| let actual = parse_duration_component(&input); | ||
| assert_eq!(actual, expected, "Failed for input: {:?}", input); | ||
| } | ||
| } | ||
| } |