2019-05-13 19:30:51 +02:00
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use crate::prelude::*;
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2021-01-10 03:50:49 +01:00
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use nu_engine::WholeStreamCommand;
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2020-04-27 03:22:01 +02:00
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2021-01-10 03:50:49 +01:00
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use nu_engine::shell::CdArgs;
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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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2019-11-30 01:21:05 +01:00
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use nu_protocol::{Signature, SyntaxShape};
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2019-08-09 06:51:21 +02:00
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2019-12-28 22:33:31 +01:00
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pub struct Cd;
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2019-08-19 07:16:39 +02:00
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2019-12-28 22:33:31 +01:00
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impl WholeStreamCommand for Cd {
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2019-08-30 00:52:32 +02:00
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fn name(&self) -> &str {
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"cd"
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}
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fn signature(&self) -> Signature {
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2020-04-06 09:16:14 +02:00
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Signature::build("cd").optional(
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"directory",
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2021-01-08 08:30:41 +01:00
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SyntaxShape::FilePath,
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2020-04-06 09:16:14 +02:00
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"the directory to change to",
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)
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2019-08-30 00:52:32 +02:00
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}
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fn usage(&self) -> &str {
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"Change to a new path."
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}
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2021-04-12 04:35:01 +02:00
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fn run_with_actions(&self, args: CommandArgs) -> Result<ActionStream, ShellError> {
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2020-05-30 01:36:04 +02:00
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let name = args.call_info.name_tag.clone();
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let shell_manager = args.shell_manager.clone();
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2021-04-06 18:19:43 +02:00
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let (args, _): (CdArgs, _) = args.process()?;
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2020-05-30 01:36:04 +02:00
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shell_manager.cd(args, name)
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2019-08-19 07:16:39 +02:00
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}
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2020-05-12 03:00:55 +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 03:00:55 +02:00
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Example {
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description: "Change to a new directory called 'dirname'",
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example: "cd dirname",
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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 03:00:55 +02:00
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},
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Example {
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description: "Change to your home directory",
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example: "cd",
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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 03:00:55 +02:00
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},
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Example {
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description: "Change to your home directory (alternate version)",
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example: "cd ~",
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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 03:00:55 +02:00
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},
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Example {
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description: "Change to the previous directory",
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example: "cd -",
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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 03:00:55 +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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2020-05-18 14:56:01 +02:00
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#[cfg(test)]
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mod tests {
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use super::Cd;
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2020-10-03 16:06:02 +02:00
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use super::ShellError;
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2020-05-18 14:56:01 +02:00
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#[test]
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2020-10-03 16:06:02 +02:00
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fn examples_work_as_expected() -> Result<(), ShellError> {
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2020-05-18 14:56:01 +02:00
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use crate::examples::test as test_examples;
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2021-02-12 11:13:14 +01:00
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test_examples(Cd {})
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2020-05-18 14:56:01 +02:00
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}
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}
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