2020-04-27 04:04:54 +02:00
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use crate::commands::WholeStreamCommand;
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2019-05-13 19:30:51 +02:00
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use crate::prelude::*;
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Extract core stuff into own crates
This commit extracts five new crates:
- nu-source, which contains the core source-code handling logic in Nu,
including Text, Span, and also the pretty.rs-based debug logic
- nu-parser, which is the parser and expander logic
- nu-protocol, which is the bulk of the types and basic conveniences
used by plugins
- nu-errors, which contains ShellError, ParseError and error handling
conveniences
- nu-textview, which is the textview plugin extracted into a crate
One of the major consequences of this refactor is that it's no longer
possible to `impl X for Spanned<Y>` outside of the `nu-source` crate, so
a lot of types became more concrete (Value became a concrete type
instead of Spanned<Value>, for example).
This also turned a number of inherent methods in the main nu crate into
plain functions (impl Value {} became a bunch of functions in the
`value` namespace in `crate::data::value`).
2019-11-26 03:30:48 +01:00
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use nu_errors::ShellError;
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2020-04-27 04:04:54 +02:00
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use nu_protocol::{Signature, SyntaxShape};
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2019-11-21 15:33:14 +01:00
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use nu_source::Tagged;
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2019-09-14 18:30:24 +02:00
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use std::path::PathBuf;
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2019-05-10 18:59:12 +02:00
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2019-12-28 22:33:31 +01:00
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pub struct Ls;
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2019-08-19 07:16:39 +02:00
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2019-09-14 18:30:24 +02:00
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#[derive(Deserialize)]
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pub struct LsArgs {
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2020-01-19 03:25:07 +01:00
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pub path: Option<Tagged<PathBuf>>,
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2020-03-13 18:27:04 +01:00
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pub all: bool,
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2020-01-19 03:25:07 +01:00
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pub full: bool,
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2020-01-25 17:20:33 +01:00
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#[serde(rename = "short-names")]
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pub short_names: bool,
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2020-01-28 07:48:41 +01:00
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#[serde(rename = "with-symlink-targets")]
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pub with_symlink_targets: bool,
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2020-05-03 07:09:17 +02:00
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#[serde(rename = "du")]
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pub du: bool,
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2019-09-14 18:30:24 +02:00
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}
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2020-05-29 10:22:52 +02:00
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#[async_trait]
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2020-04-27 04:04:54 +02:00
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impl WholeStreamCommand for Ls {
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2019-08-19 07:16:39 +02:00
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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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2019-11-17 18:10:50 +01:00
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Signature::build("ls")
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.optional(
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"path",
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SyntaxShape::Pattern,
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"a path to get the directory contents from",
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)
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2020-03-13 18:27:04 +01:00
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.switch("all", "also show hidden files", Some('a'))
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2020-02-12 03:24:31 +01:00
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.switch(
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"full",
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"list all available columns for each entry",
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Some('f'),
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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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2020-01-28 07:48:41 +01:00
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.switch(
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"with-symlink-targets",
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"display the paths to the target files that symlinks point to",
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2020-02-12 03:24:31 +01:00
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Some('w'),
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2020-01-28 07:48:41 +01:00
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)
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2020-05-03 07:09:17 +02:00
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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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2019-08-19 07:16:39 +02:00
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}
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2019-08-30 00:52:32 +02:00
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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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2020-05-29 10:22:52 +02:00
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async fn run(
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2019-08-30 00:52:32 +02:00
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&self,
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2020-04-27 04:04:54 +02:00
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args: CommandArgs,
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registry: &CommandRegistry,
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2019-08-30 00:52:32 +02:00
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) -> Result<OutputStream, ShellError> {
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2020-05-16 05:18:24 +02:00
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ls(args, registry)
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2019-08-30 00:52:32 +02:00
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}
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2020-05-12 17:54:29 +02:00
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2020-05-18 14:56:01 +02:00
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fn examples(&self) -> Vec<Example> {
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vec![
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2020-05-12 17:54:29 +02:00
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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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2020-05-18 14:56:01 +02:00
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result: None,
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2020-05-12 17:54:29 +02:00
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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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2020-05-18 14:56:01 +02:00
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result: None,
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2020-05-12 17:54:29 +02:00
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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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2020-05-18 14:56:01 +02:00
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result: None,
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2020-05-12 17:54:29 +02:00
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},
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]
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}
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2019-08-19 07:16:39 +02:00
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}
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2020-05-16 05:18:24 +02:00
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fn ls(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
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let registry = registry.clone();
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let stream = async_stream! {
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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(®istry).await?;
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let mut result = shell_manager.ls(args, name, ctrl_c)?;
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while let Some(item) = result.next().await {
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yield item;
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}
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};
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Ok(stream.to_output_stream())
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2019-05-10 18:59:12 +02:00
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}
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2020-05-18 14:56:01 +02:00
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#[cfg(test)]
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mod tests {
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use super::Ls;
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#[test]
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fn examples_work_as_expected() {
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use crate::examples::test as test_examples;
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test_examples(Ls {})
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}
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}
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