mirror of https://github.com/sharkdp/fd.git
80 lines
2.3 KiB
Rust
80 lines
2.3 KiB
Rust
use std::time::SystemTime;
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/// Filter based on time ranges.
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#[derive(Debug, PartialEq)]
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pub enum TimeFilter {
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Before(SystemTime),
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After(SystemTime),
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}
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impl TimeFilter {
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fn from_str(ref_time: &SystemTime, s: &str) -> Option<SystemTime> {
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humantime::parse_duration(s)
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.map(|duration| *ref_time - duration)
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.or_else(|_| humantime::parse_rfc3339_weak(s))
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.ok()
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}
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pub fn before(ref_time: &SystemTime, s: &str) -> Option<TimeFilter> {
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TimeFilter::from_str(ref_time, s).map(TimeFilter::Before)
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}
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pub fn after(ref_time: &SystemTime, s: &str) -> Option<TimeFilter> {
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TimeFilter::from_str(ref_time, s).map(TimeFilter::After)
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}
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pub fn applies_to(&self, t: &SystemTime) -> bool {
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match self {
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TimeFilter::Before(limit) => t <= limit,
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TimeFilter::After(limit) => t >= limit,
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use std::time::Duration;
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#[test]
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fn is_time_filter_applicable() {
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let ref_time = humantime::parse_rfc3339("2010-10-10T10:10:10Z").unwrap();
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assert!(TimeFilter::after(&ref_time, "1min")
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.unwrap()
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.applies_to(&ref_time));
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assert!(!TimeFilter::before(&ref_time, "1min")
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.unwrap()
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.applies_to(&ref_time));
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let t1m_ago = ref_time - Duration::from_secs(60);
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assert!(!TimeFilter::after(&ref_time, "30sec")
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.unwrap()
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.applies_to(&t1m_ago));
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assert!(TimeFilter::after(&ref_time, "2min")
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.unwrap()
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.applies_to(&t1m_ago));
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assert!(TimeFilter::before(&ref_time, "30sec")
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.unwrap()
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.applies_to(&t1m_ago));
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assert!(!TimeFilter::before(&ref_time, "2min")
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.unwrap()
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.applies_to(&t1m_ago));
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let t10s_before = "2010-10-10 10:10:00";
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assert!(!TimeFilter::before(&ref_time, t10s_before)
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.unwrap()
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.applies_to(&ref_time));
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assert!(TimeFilter::before(&ref_time, t10s_before)
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.unwrap()
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.applies_to(&t1m_ago));
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assert!(TimeFilter::after(&ref_time, t10s_before)
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.unwrap()
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.applies_to(&ref_time));
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assert!(!TimeFilter::after(&ref_time, t10s_before)
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.unwrap()
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.applies_to(&t1m_ago));
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}
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}
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