nushell/crates/nu-cli/src/commands/version.rs

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use crate::commands::WholeStreamCommand;
use crate::prelude::*;
use indexmap::IndexMap;
use nu_errors::ShellError;
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use nu_protocol::{Dictionary, Signature, UntaggedValue};
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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> {
version(args, registry)
}
fn examples(&self) -> &[Example] {
&[Example {
description: "Display Nu version",
example: "version",
}]
}
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}
pub fn version(args: CommandArgs, _registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
let tag = args.call_info.args.span;
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let mut indexmap = IndexMap::new();
indexmap.insert(
"version".to_string(),
UntaggedValue::string(clap::crate_version!()).into_value(&tag),
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);
let value = UntaggedValue::Row(Dictionary::from(indexmap)).into_value(&tag);
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Ok(OutputStream::one(value))
}