nu-command 0.30.0

CLI for nushell
Documentation 
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use crate::prelude::*;
use chrono::{DateTime, Utc};
use nu_errors::ShellError;

use crate::commands::date::utils::date_to_value;
use nu_engine::WholeStreamCommand;
use nu_protocol::Signature;

pub struct Date;

impl WholeStreamCommand for Date {
    fn name(&self) -> &str {
        "date utc"
    }

    fn signature(&self) -> Signature {
        Signature::build("date utc")
    }

    fn usage(&self) -> &str {
        "return the current date in utc."
    }

    fn run_with_actions(&self, args: CommandArgs) -> Result<OutputStream, ShellError> {
        utc(args)
    }
}

pub fn utc(args: CommandArgs) -> Result<OutputStream, ShellError> {
    let args = args.evaluate_once()?;
    let tag = args.call_info.name_tag.clone();

    let no_fmt = "".to_string();

    let value = {
        let local: DateTime<Utc> = Utc::now();
        date_to_value(local, tag, no_fmt)
    };

    Ok(OutputStream::one(value))
}

#[cfg(test)]
mod tests {
    use super::Date;
    use super::ShellError;

    #[test]
    fn examples_work_as_expected() -> Result<(), ShellError> {
        use crate::examples::test as test_examples;

        test_examples(Date {})
    }
}