1 unstable release
Uses old Rust 2015
0.4.0 | Jan 19, 2018 |
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#25 in #cron-expression
Used in time-tweet
38KB
971 lines
cron
A Cron Expression Parser in Rust
extern crate cron;
extern crate chrono;
use cron::Schedule;
use chrono::Utc;
use std::str::FromStr;
fn main() {
// sec min hour day of month month day of week year
let expression = "0 30 9,12,15 1,15 May-Aug Mon,Wed,Fri 2018/2";
let schedule = Schedule::from_str(expression).unwrap();
println!("Upcoming fire times:");
for datetime in schedule.upcoming(Utc).take(10) {
println!("-> {}", datetime);
}
}
/*
Upcoming fire times:
-> 2018-06-01 09:30:00 UTC
-> 2018-06-01 12:30:00 UTC
-> 2018-06-01 15:30:00 UTC
-> 2018-06-15 09:30:00 UTC
-> 2018-06-15 12:30:00 UTC
-> 2018-06-15 15:30:00 UTC
-> 2018-08-01 09:30:00 UTC
-> 2018-08-01 12:30:00 UTC
-> 2018-08-01 15:30:00 UTC
-> 2018-08-15 09:30:00 UTC
*/
lib.rs
:
A cron expression parser and schedule explorer
Example
extern crate chrono;
extern crate cron;
use cron::Schedule;
use chrono::Utc;
use std::str::FromStr;
fn main() {
// sec min hour day of month month day of week year
let expression = "0 30 9,12,15 1,15 May-Aug Mon,Wed,Fri 2018/2";
let schedule = Schedule::from_str(expression).unwrap();
println!("Upcoming fire times:");
for datetime in schedule.upcoming(Utc).take(10) {
println!("-> {}", datetime);
}
}
/*
Upcoming fire times:
-> 2018-06-01 09:30:00 UTC
-> 2018-06-01 12:30:00 UTC
-> 2018-06-01 15:30:00 UTC
-> 2018-06-15 09:30:00 UTC
-> 2018-06-15 12:30:00 UTC
-> 2018-06-15 15:30:00 UTC
-> 2018-08-01 09:30:00 UTC
-> 2018-08-01 12:30:00 UTC
-> 2018-08-01 15:30:00 UTC
-> 2018-08-15 09:30:00 UTC
*/
Dependencies
~4–5.5MB
~104K SLoC