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01d3e0f317
This PR adds unstable `Deno.cron` API to trigger execution of cron jobs. * State: All cron state is in memory. Cron jobs are scheduled according to the cron schedule expression and the current time. No state is persisted to disk. * Time zone: Cron expressions specify time in UTC. * Overlapping executions: not permitted. If the next scheduled execution time occurs while the same cron job is still executing, the scheduled execution is skipped. * Retries: failed jobs are automatically retried until they succeed or until retry threshold is reached. Retry policy can be optionally specified using `options.backoffSchedule`.
19 lines
704 B
Rust
19 lines
704 B
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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/// Identical to chrono::Utc::now() but without the system "clock"
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/// feature flag.
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///
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/// The "clock" feature flag pulls in the "iana-time-zone" crate
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/// which links to macOS's "CoreFoundation" framework which increases
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/// startup time for the CLI.
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pub fn utc_now() -> chrono::DateTime<chrono::Utc> {
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let now = std::time::SystemTime::now()
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.duration_since(std::time::UNIX_EPOCH)
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.expect("system time before Unix epoch");
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let naive = chrono::NaiveDateTime::from_timestamp_opt(
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now.as_secs() as i64,
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now.subsec_nanos(),
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)
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.unwrap();
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chrono::DateTime::from_naive_utc_and_offset(naive, chrono::Utc)
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}
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