Files
nushell/crates/nu-command/src/commands/config/set_into.rs
Michael Angerman d06f457b2a nu-cli refactor moving commands into their own crate nu-command (#2910)
* move commands, futures.rs, script.rs, utils

* move over maybe_print_errors

* add nu_command crate references to nu_cli

* in commands.rs open up to pub mod from pub(crate)

* nu-cli, nu-command, and nu tests are now passing

* cargo fmt

* clean up nu-cli/src/prelude.rs

* code cleanup

* for some reason lex.rs was not formatted, may be causing my error

* remove mod completion from lib.rs which was not being used along with quickcheck macros

* add in allow unused imports

* comment out one failing external test; comment out one failing internal test

* revert commenting out failing tests; something else might be going on; someone with a windows machine should check and see what is going on with these failing windows tests

* Update Cargo.toml

Extend the optional features to nu-command

Co-authored-by: Jonathan Turner <jonathandturner@users.noreply.github.com>
2021-01-12 17:59:53 +13:00

91 lines
2.5 KiB
Rust

use crate::prelude::*;
use nu_engine::WholeStreamCommand;
use nu_errors::ShellError;
use nu_protocol::{ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
use nu_source::Tagged;
pub struct SubCommand;
#[derive(Deserialize)]
pub struct SetIntoArgs {
set_into: Tagged<String>,
}
#[async_trait]
impl WholeStreamCommand for SubCommand {
fn name(&self) -> &str {
"config set_into"
}
fn signature(&self) -> Signature {
Signature::build("config set_into").required(
"set_into",
SyntaxShape::String,
"sets a variable from values in the pipeline",
)
}
fn usage(&self) -> &str {
"Sets a value in the config"
}
async fn run(&self, args: CommandArgs) -> Result<OutputStream, ShellError> {
set_into(args).await
}
fn examples(&self) -> Vec<Example> {
vec![Example {
description: "Store the contents of the pipeline as a path",
example: "echo ['/usr/bin' '/bin'] | config set_into path",
result: None,
}]
}
}
pub async fn set_into(args: CommandArgs) -> Result<OutputStream, ShellError> {
let name_span = args.call_info.name_tag.clone();
let name = args.call_info.name_tag.clone();
let (SetIntoArgs { set_into: v }, input) = args.process().await?;
// NOTE: None because we are not loading a new config file, we just want to read from the
// existing config
let mut result = nu_data::config::read(name_span, &None)?;
// In the original code, this is set to `Some` if the `load flag is set`
let configuration = None;
let rows: Vec<Value> = input.collect().await;
let key = v.to_string();
Ok(if rows.is_empty() {
return Err(ShellError::labeled_error(
"No values given for set_into",
"needs value(s) from pipeline",
v.tag(),
));
} else if rows.len() == 1 {
// A single value
let value = &rows[0];
result.insert(key, value.clone());
config::write(&result, &configuration)?;
OutputStream::one(ReturnSuccess::value(
UntaggedValue::Row(result.into()).into_value(name),
))
} else {
// Take in the pipeline as a table
let value = UntaggedValue::Table(rows).into_value(name.clone());
result.insert(key, value);
config::write(&result, &configuration)?;
OutputStream::one(ReturnSuccess::value(
UntaggedValue::Row(result.into()).into_value(name),
))
})
}