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Copy pathshell.rs
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Copy pathshell.rs
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41 lines (39 loc) · 1.33 KB
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mod helper;
use rustpython_vm::{
PyResult, VirtualMachine,
readline::{Readline, ReadlineResult},
scope::Scope,
vm::InteractiveLine,
};
/// Enter a repl loop
///
/// rustyline takes the role of `PyOS_Readline` with the readline module,
/// adding line editing, completion and history.
pub fn run_shell(vm: &VirtualMachine, scope: Scope) -> PyResult<()> {
let mut repl = Readline::new(helper::ShellHelper::new(vm, scope.globals));
let history = dirs::config_dir().map_or_else(
|| ".repl_history.txt".into(),
|mut path| {
path.push("rustpython");
path.push("repl_history.txt");
path
},
);
let _ = repl.load_history(&history);
let result = vm.run_interactive_loop(|prompt| match repl.readline(prompt) {
ReadlineResult::Line(line) => {
let _ = repl.add_history_entry(line.trim_end());
Ok(Some(InteractiveLine::Text(line)))
}
ReadlineResult::Eof => Ok(None),
ReadlineResult::Interrupt => {
Err(vm.new_exception_empty(vm.ctx.exceptions.keyboard_interrupt.to_owned()))
}
ReadlineResult::Io(_) => Ok(None),
#[cfg(unix)]
ReadlineResult::OsError(_) => Ok(None),
ReadlineResult::Other(_) => Ok(None),
});
let _ = repl.save_history(&history);
result
}