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.
84 lines
2.2 KiB
Rust
84 lines
2.2 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::{Signature, SyntaxShape};
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pub struct Ls;
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#[async_trait]
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impl WholeStreamCommand for Ls {
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fn name(&self) -> &str {
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"ls"
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}
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fn signature(&self) -> Signature {
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Signature::build("ls")
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.optional(
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"path",
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SyntaxShape::GlobPattern,
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"a path to get the directory contents from",
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)
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.switch("all", "Show hidden files", Some('a'))
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.switch(
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"long",
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"List all available columns for each entry",
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Some('l'),
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)
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.switch(
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"short-names",
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"Only print the file names and not the path",
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Some('s'),
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)
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.switch(
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"du",
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"Display the apparent directory size in place of the directory metadata size",
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Some('d'),
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)
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}
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fn usage(&self) -> &str {
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"View the contents of the current or given path."
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}
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async fn run(&self, args: CommandArgs) -> Result<OutputStream, ShellError> {
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let name = args.call_info.name_tag.clone();
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let ctrl_c = args.ctrl_c.clone();
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let shell_manager = args.shell_manager.clone();
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let (args, _) = args.process().await?;
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shell_manager.ls(args, name, ctrl_c)
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}
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fn examples(&self) -> Vec<Example> {
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vec![
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Example {
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description: "List all files in the current directory",
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example: "ls",
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result: None,
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},
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Example {
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description: "List all files in a subdirectory",
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example: "ls subdir",
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result: None,
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},
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Example {
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description: "List all rust files",
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example: "ls *.rs",
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result: None,
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},
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]
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}
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}
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#[cfg(test)]
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mod tests {
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use super::Ls;
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use super::ShellError;
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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(Ls {})?)
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}
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}
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