use crate::commands::WholeStreamCommand; use crate::data::TaggedDictBuilder; use crate::errors::ShellError; use crate::prelude::*; pub struct Shells; impl WholeStreamCommand for Shells { fn name(&self) -> &str { "shells" } fn signature(&self) -> Signature { Signature::build("shells") } fn usage(&self) -> &str { "Display the list of current shells." } fn run( &self, args: CommandArgs, registry: &CommandRegistry, ) -> Result { shells(args, registry) } } fn shells(args: CommandArgs, _registry: &CommandRegistry) -> Result { let mut shells_out = VecDeque::new(); let tag = args.call_info.name_tag; for (index, shell) in args.shell_manager.shells.lock().unwrap().iter().enumerate() { let mut dict = TaggedDictBuilder::new(tag); if index == args.shell_manager.current_shell { dict.insert(" ", "X".to_string()); } else { dict.insert(" ", " ".to_string()); } dict.insert("name", shell.name(&args.call_info.source_map)); dict.insert("path", shell.path()); shells_out.push_back(dict.into_tagged_value()); } Ok(shells_out.to_output_stream()) }