nushell/crates/nu-command/src/date/list_timezone.rs
Justin Ma 1235d516a5
Add examples for env,let-env,rm,touch and date list-timezone (#4531)
* feat: update #4518, add examples for env,let-env,rm,touch and date list-timezone

* fix typo

* update example for `date list-timezone` command
2022-02-18 18:19:37 +02:00

62 lines
1.7 KiB
Rust

use chrono_tz::TZ_VARIANTS;
use nu_protocol::ast::Call;
use nu_protocol::engine::{Command, EngineState, Stack};
use nu_protocol::{
Category, Example, IntoInterruptiblePipelineData, PipelineData, Signature, Span, Value,
};
#[derive(Clone)]
pub struct SubCommand;
impl Command for SubCommand {
fn name(&self) -> &str {
"date list-timezone"
}
fn signature(&self) -> Signature {
Signature::build("date list-timezone").category(Category::Date)
}
fn usage(&self) -> &str {
"List supported time zones."
}
fn run(
&self,
engine_state: &EngineState,
_stack: &mut Stack,
call: &Call,
_input: PipelineData,
) -> Result<nu_protocol::PipelineData, nu_protocol::ShellError> {
let span = call.head;
Ok(TZ_VARIANTS
.iter()
.map(move |x| {
let cols = vec!["timezone".into()];
let vals = vec![Value::String {
val: x.name().to_string(),
span,
}];
Value::Record { cols, vals, span }
})
.into_iter()
.into_pipeline_data(engine_state.ctrlc.clone()))
}
fn examples(&self) -> Vec<Example> {
vec![Example {
example: "date list-timezone | where timezone =~ Shanghai",
description: "Show timezone(s) that contains 'Shanghai'",
result: Some(Value::List {
vals: vec![Value::Record {
cols: vec!["timezone".into()],
vals: vec![Value::test_string("Asia/Shanghai")],
span: Span::test_data(),
}],
span: Span::test_data(),
}),
}]
}
}