forked from extern/nushell
93e8f6c05e
We split off the evaluation engine part of nu-cli into its own crate. This helps improve build times for nu-cli by 17% in my tests. It also helps us see a bit better what's the core engine portion vs the part specific to the interactive CLI piece. There's more than can be done here, but I think it's a good start in the right direction.
50 lines
1.2 KiB
Rust
50 lines
1.2 KiB
Rust
use crate::prelude::*;
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use nu_engine::WholeStreamCommand;
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use nu_errors::ShellError;
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use nu_protocol::{ReturnSuccess, Signature, UntaggedValue};
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pub struct SubCommand;
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#[async_trait]
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impl WholeStreamCommand for SubCommand {
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fn name(&self) -> &str {
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"config clear"
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}
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fn signature(&self) -> Signature {
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Signature::build("config clear")
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}
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fn usage(&self) -> &str {
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"clear the config"
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}
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async fn run(&self, args: CommandArgs) -> Result<OutputStream, ShellError> {
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clear(args).await
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}
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fn examples(&self) -> Vec<Example> {
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vec![Example {
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description: "Clear the config (be careful!)",
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example: "config clear",
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result: None,
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}]
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}
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}
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pub async fn clear(args: CommandArgs) -> Result<OutputStream, ShellError> {
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let name_span = args.call_info.name_tag.clone();
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// NOTE: None because we are not loading a new config file, we just want to read from the
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// existing config
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let mut result = nu_data::config::read(name_span, &None)?;
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result.clear();
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config::write(&result, &None)?;
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Ok(OutputStream::one(ReturnSuccess::value(
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UntaggedValue::Row(result.into()).into_value(args.call_info.name_tag),
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)))
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}
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