52 lines
1.9 KiB
Rust
52 lines
1.9 KiB
Rust
use std::env;
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use std::fs;
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use std::io::{self, BufReader, BufRead};
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//use regex::Regex;
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use chrono::{Duration, DateTime, FixedOffset, NaiveDateTime, TimeZone, Utc};
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use chrono_tz::America::New_York;
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fn main() {
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// Regexes
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//let sep = Regex::new(r":").unwrap();
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// read file argument or stdin
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let input = env::args().nth(1);
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let reader: Box<dyn BufRead> = match input {
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None => Box::new(BufReader::new(io::stdin())),
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Some(filename) => Box::new(BufReader::new(fs::File::open(filename).unwrap()))
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};
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let mut old: DateTime<FixedOffset> = DateTime::from(DateTime::<Utc>::MIN_UTC);
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let mut new: DateTime<FixedOffset> = DateTime::from(DateTime::<Utc>::MIN_UTC);
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for line in reader.lines() {
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let l: String = line.unwrap();
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let (item, timestamp) = l.split_once(':').unwrap();
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let ndt = NaiveDateTime::parse_from_str(×tamp, "%a %b %e %H:%M:%S %Z %Y").unwrap();
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let dt = New_York.from_local_datetime(&ndt).unwrap();
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let ts: DateTime<FixedOffset> = DateTime::parse_from_rfc3339(&dt.to_rfc3339()).unwrap();
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if old == DateTime::<Utc>::MIN_UTC {
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old = ts;
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continue;
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} else if new == DateTime::<Utc>::MIN_UTC {
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new = ts;
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} else {
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old = new;
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new = ts;
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};
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let dur: Duration = new - old;
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let weeks = dur.num_weeks();
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let days = dur.num_days() - weeks * 7;
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let hours = dur.num_hours() - weeks * 7 * 24 - days * 24;
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let minutes = dur.num_minutes() - weeks * 7 * 24 * 60 - days * 24 * 60 - hours * 60;
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let seconds = dur.num_seconds() - weeks * 7 * 24 * 60 * 60
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- days * 24 * 60 * 60 - hours * 60 * 60 - minutes * 60;
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println!("{}: {} weeks, {} days, {} hours, {} minutes, {} seconds",
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item, weeks, days, hours, minutes, seconds);
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};
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}
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