117 lines
3.2 KiB
Rust
117 lines
3.2 KiB
Rust
use super::{get_current_shell, get_last_shell, get_shells};
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use nu_engine::{current_dir, CallExt};
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use nu_protocol::ast::Call;
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use nu_protocol::engine::{Command, EngineState, Stack};
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use nu_protocol::{
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Category, Example, PipelineData, ShellError, Signature, SyntaxShape, Type, Value,
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};
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#[derive(Clone)]
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pub struct Exit;
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impl Command for Exit {
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fn name(&self) -> &str {
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"exit"
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}
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fn signature(&self) -> Signature {
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Signature::build("exit")
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.input_output_types(vec![(Type::Nothing, Type::Nothing)])
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.optional(
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"exit_code",
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SyntaxShape::Int,
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"Exit code to return immediately with",
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)
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.switch(
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"now",
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"Exit out of all shells immediately (exiting Nu)",
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Some('n'),
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)
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.category(Category::Shells)
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}
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fn usage(&self) -> &str {
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"Exit a Nu shell or exit Nu entirely."
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}
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fn search_terms(&self) -> Vec<&str> {
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vec!["quit", "close", "exit_code", "error_code", "logout"]
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}
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fn run(
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&self,
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engine_state: &EngineState,
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stack: &mut Stack,
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call: &Call,
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_input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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let exit_code: Option<i64> = call.opt(engine_state, stack, 0)?;
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if let Some(exit_code) = exit_code {
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std::process::exit(exit_code as i32);
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}
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if call.has_flag("now") {
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std::process::exit(0);
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}
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let cwd = current_dir(engine_state, stack)?;
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let cwd = Value::string(cwd.to_string_lossy(), call.head);
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let mut shells = get_shells(engine_state, stack, cwd);
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let mut current_shell = get_current_shell(engine_state, stack);
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let mut last_shell = get_last_shell(engine_state, stack);
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shells.remove(current_shell);
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if current_shell <= last_shell {
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last_shell = 0;
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}
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if current_shell == shells.len() && !shells.is_empty() {
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current_shell -= 1;
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}
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if shells.is_empty() {
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std::process::exit(0);
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} else {
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let new_path = shells[current_shell].clone();
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stack.add_env_var(
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"NUSHELL_SHELLS".into(),
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Value::List {
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vals: shells,
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span: call.head,
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},
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);
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stack.add_env_var(
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"NUSHELL_CURRENT_SHELL".into(),
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Value::int(current_shell as i64, call.head),
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);
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stack.add_env_var(
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"NUSHELL_LAST_SHELL".into(),
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Value::int(last_shell as i64, call.head),
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);
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stack.add_env_var("PWD".into(), new_path);
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Ok(PipelineData::empty())
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}
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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: "Exit the current shell",
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example: "exit",
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result: None,
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},
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Example {
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description: "Exit all shells (exiting Nu)",
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example: "exit --now",
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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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