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d06f457b2a
* 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>
47 lines
1.0 KiB
Rust
47 lines
1.0 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, Value};
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use rand::seq::SliceRandom;
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use rand::thread_rng;
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pub struct Shuffle;
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#[async_trait]
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impl WholeStreamCommand for Shuffle {
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fn name(&self) -> &str {
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"shuffle"
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}
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fn usage(&self) -> &str {
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"Shuffle rows randomly."
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}
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async fn run(&self, args: CommandArgs) -> Result<OutputStream, ShellError> {
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shuffle(args).await
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}
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}
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async fn shuffle(args: CommandArgs) -> Result<OutputStream, ShellError> {
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let input = args.input;
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let mut values: Vec<Value> = input.collect().await;
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values.shuffle(&mut thread_rng());
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Ok(futures::stream::iter(values.into_iter().map(ReturnSuccess::value)).to_output_stream())
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}
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#[cfg(test)]
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mod tests {
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use super::ShellError;
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use super::Shuffle;
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#[test]
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fn examples_work_as_expected() -> Result<(), ShellError> {
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use crate::examples::test as test_examples;
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Ok(test_examples(Shuffle {})?)
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}
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}
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