forked from extern/nushell
80 lines
2.0 KiB
Rust
80 lines
2.0 KiB
Rust
use crate::parser::{CommandConfig, CommandRegistry};
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use crate::prelude::*;
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use indexmap::IndexMap;
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use std::error::Error;
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use std::sync::Arc;
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pub struct Context {
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commands: IndexMap<String, Arc<dyn Command>>,
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crate host: Arc<Mutex<dyn Host + Send>>,
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crate env: Arc<Mutex<Environment>>,
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}
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impl Context {
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crate fn basic() -> Result<Context, Box<Error>> {
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Ok(Context {
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commands: indexmap::IndexMap::new(),
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host: Arc::new(Mutex::new(crate::env::host::BasicHost)),
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env: Arc::new(Mutex::new(Environment::basic()?)),
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})
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}
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pub fn add_commands(&mut self, commands: Vec<Arc<dyn Command>>) {
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for command in commands {
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self.commands.insert(command.name().to_string(), command);
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}
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}
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pub fn clone_commands(&self) -> indexmap::IndexMap<String, Arc<dyn Command>> {
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self.commands.clone()
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}
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pub fn registry(&self) -> CommandMap {
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CommandMap {
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commands: self.clone_commands(),
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}
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}
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crate fn has_command(&self, name: &str) -> bool {
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self.commands.contains_key(name)
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}
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crate fn get_command(&self, name: &str) -> Arc<dyn Command> {
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self.commands.get(name).unwrap().clone()
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}
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crate fn run_command(
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&mut self,
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command: Arc<dyn Command>,
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arg_list: Vec<Value>,
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input: InputStream,
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) -> Result<OutputStream, ShellError> {
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let command_args = CommandArgs {
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host: self.host.clone(),
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env: self.env.clone(),
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args: arg_list,
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input,
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};
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command.run(command_args)
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}
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}
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pub struct CommandMap {
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#[allow(unused)]
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commands: IndexMap<String, Arc<dyn Command>>,
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}
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impl CommandRegistry for CommandMap {
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fn get(&self, name: &str) -> CommandConfig {
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CommandConfig {
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name: name.to_string(),
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mandatory_positional: vec![],
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optional_positional: vec![],
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rest_positional: true,
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named: IndexMap::new(),
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}
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}
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}
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