mirror of https://github.com/sharkdp/fd.git
132 lines
4.1 KiB
Rust
132 lines
4.1 KiB
Rust
use chrono::{offset::TimeZone, DateTime, Local, NaiveDate};
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use std::time::SystemTime;
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/// Filter based on time ranges.
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#[derive(Debug, PartialEq, Eq)]
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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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.ok()
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.or_else(|| {
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DateTime::parse_from_rfc3339(s)
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.map(|dt| dt.into())
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.ok()
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.or_else(|| {
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NaiveDate::parse_from_str(s, "%F")
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.map(|nd| nd.and_hms(0, 0, 0))
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.ok()
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.and_then(|ndt| Local.from_local_datetime(&ndt).single())
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})
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.or_else(|| Local.datetime_from_str(s, "%F %T").ok())
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.map(|dt| dt.into())
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})
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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 = Local
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.datetime_from_str("2010-10-10 10:10:10", "%F %T")
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.unwrap()
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.into();
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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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let same_day = "2010-10-10";
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assert!(!TimeFilter::before(&ref_time, same_day)
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.unwrap()
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.applies_to(&ref_time));
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assert!(!TimeFilter::before(&ref_time, same_day)
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.unwrap()
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.applies_to(&t1m_ago));
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assert!(TimeFilter::after(&ref_time, same_day)
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.unwrap()
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.applies_to(&ref_time));
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assert!(TimeFilter::after(&ref_time, same_day)
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.unwrap()
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.applies_to(&t1m_ago));
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let ref_time = DateTime::parse_from_rfc3339("2010-10-10T10:10:10+00:00")
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.unwrap()
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.into();
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let t1m_ago = ref_time - Duration::from_secs(60);
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let t10s_before = "2010-10-10T10:10:00+00:00";
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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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