mirror of
https://github.com/nushell/nushell.git
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e4226def16
This commit extracts five new crates:
- nu-source, which contains the core source-code handling logic in Nu,
including Text, Span, and also the pretty.rs-based debug logic
- nu-parser, which is the parser and expander logic
- nu-protocol, which is the bulk of the types and basic conveniences
used by plugins
- nu-errors, which contains ShellError, ParseError and error handling
conveniences
- nu-textview, which is the textview plugin extracted into a crate
One of the major consequences of this refactor is that it's no longer
possible to `impl X for Spanned<Y>` outside of the `nu-source` crate, so
a lot of types became more concrete (Value became a concrete type
instead of Spanned<Value>, for example).
This also turned a number of inherent methods in the main nu crate into
plain functions (impl Value {} became a bunch of functions in the
`value` namespace in `crate::data::value`).
85 lines
2.2 KiB
Rust
85 lines
2.2 KiB
Rust
use crate::prelude::*;
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use chrono::{DateTime, Local, Utc};
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use nu_errors::ShellError;
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use nu_protocol::{Dictionary, Value};
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use crate::commands::WholeStreamCommand;
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use crate::data::value;
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use chrono::{Datelike, TimeZone, Timelike};
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use core::fmt::Display;
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use indexmap::IndexMap;
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use nu_protocol::{Signature, UntaggedValue};
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pub struct Date;
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impl WholeStreamCommand for Date {
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fn name(&self) -> &str {
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"date"
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}
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fn signature(&self) -> Signature {
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Signature::build("date")
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.switch("utc", "use universal time (UTC)")
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.switch("local", "use the local time")
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}
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fn usage(&self) -> &str {
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"Get the current datetime."
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}
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fn run(
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&self,
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args: CommandArgs,
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registry: &CommandRegistry,
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) -> Result<OutputStream, ShellError> {
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date(args, registry)
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}
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}
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pub fn date_to_value<T: TimeZone>(dt: DateTime<T>, tag: Tag) -> Value
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where
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T::Offset: Display,
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{
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let mut indexmap = IndexMap::new();
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indexmap.insert("year".to_string(), value::int(dt.year()).into_value(&tag));
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indexmap.insert("month".to_string(), value::int(dt.month()).into_value(&tag));
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indexmap.insert("day".to_string(), value::int(dt.day()).into_value(&tag));
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indexmap.insert("hour".to_string(), value::int(dt.hour()).into_value(&tag));
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indexmap.insert(
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"minute".to_string(),
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value::int(dt.minute()).into_value(&tag),
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);
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indexmap.insert(
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"second".to_string(),
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value::int(dt.second()).into_value(&tag),
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);
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let tz = dt.offset();
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indexmap.insert(
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"timezone".to_string(),
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value::string(format!("{}", tz)).into_value(&tag),
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);
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UntaggedValue::Row(Dictionary::from(indexmap)).into_value(&tag)
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}
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pub fn date(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
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let args = args.evaluate_once(registry)?;
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let mut date_out = VecDeque::new();
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let tag = args.call_info.name_tag.clone();
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let value = if args.has("utc") {
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let utc: DateTime<Utc> = Utc::now();
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date_to_value(utc, tag)
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} else {
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let local: DateTime<Local> = Local::now();
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date_to_value(local, tag)
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};
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date_out.push_back(value);
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Ok(date_out.to_output_stream())
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}
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