nushell/src/commands/version.rs
Jonathan Turner 193b00764b
Stream support (#812)
* Moves off of draining between filters. Instead, the sink will pull on the stream, and will drain element-wise. This moves the whole stream to being lazy.
* Adds ctrl-c support and connects it into some of the key points where we pull on the stream. If a ctrl-c is detect, we immediately halt pulling on the stream and return to the prompt.
* Moves away from having a SourceMap where anchor locations are stored. Now AnchorLocation is kept directly in the Tag.
* To make this possible, split tag and span. Span is largely used in the parser and is copyable. Tag is now no longer copyable.
2019-10-13 17:12:43 +13:00

45 lines
1.1 KiB
Rust

use crate::commands::WholeStreamCommand;
use crate::data::{Dictionary, Value};
use crate::errors::ShellError;
use crate::parser::registry::Signature;
use crate::prelude::*;
use indexmap::IndexMap;
pub struct Version;
impl WholeStreamCommand for Version {
fn name(&self) -> &str {
"version"
}
fn signature(&self) -> Signature {
Signature::build("version")
}
fn usage(&self) -> &str {
"Display Nu version"
}
fn run(
&self,
args: CommandArgs,
registry: &CommandRegistry,
) -> Result<OutputStream, ShellError> {
date(args, registry)
}
}
pub fn date(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
let args = args.evaluate_once(registry)?;
let tag = args.call_info.name_tag.clone();
let mut indexmap = IndexMap::new();
indexmap.insert(
"version".to_string(),
Value::string(clap::crate_version!()).tagged(&tag),
);
let value = Value::Row(Dictionary::from(indexmap)).tagged(&tag);
Ok(OutputStream::one(value))
}