nushell/crates/nu-command/src/util.rs

use nu_protocol::engine::{EngineState, Stack, StateWorkingSet};
use nu_protocol::CliError;
use std::path::PathBuf;

pub fn report_error(
    working_set: &StateWorkingSet,
    error: &(dyn miette::Diagnostic + Send + Sync + 'static),
) {
    eprintln!("Error: {:?}", CliError(error, working_set));
    // reset vt processing, aka ansi because illbehaved externals can break it
    #[cfg(windows)]
    {
        let _ = nu_utils::enable_vt_processing();
    }
}

pub fn report_error_new(
    engine_state: &EngineState,
    error: &(dyn miette::Diagnostic + Send + Sync + 'static),
) {
    let working_set = StateWorkingSet::new(engine_state);

    report_error(&working_set, error);
}

pub fn get_init_cwd() -> PathBuf {
    std::env::current_dir().unwrap_or_else(|_| {
        std::env::var("PWD")
            .map(Into::into)
            .unwrap_or_else(|_| nu_path::home_dir().unwrap_or_default())
    })
}

pub fn get_guaranteed_cwd(engine_state: &EngineState, stack: &Stack) -> PathBuf {
    nu_engine::env::current_dir(engine_state, stack).unwrap_or_else(|e| {
        let working_set = StateWorkingSet::new(engine_state);
        report_error(&working_set, &e);
        crate::util::get_init_cwd()
    })
}