use crate::error::CommandError;

use hg;

use hg::matchers::get_ignore_matcher;

use hg::StatusError;

use log::warn;

pub const HELP_TEXT: &str = "

Show effective hgignore patterns used by rhg.

This is a pure Rust version of `hg debugignore`.

Some options might be missing, check the list below.

";

}

pub fn run(invocation: &crate::CliInvocation) -> Result<(), CommandError> {

    let repo = invocation.repo?;

    let ignore_file = repo.working_directory_vfs().join(".hgignore"); // TODO hardcoded

    let (ignore_matcher, warnings) = get_ignore_matcher(

        vec![ignore_file],

        &repo.working_directory_path().to_owned(),

        &mut |_source, _pattern_bytes| (),

    )

    .map_err(|e| StatusError::from(e))?;

    if !warnings.is_empty() {

        warn!("Pattern warnings: {:?}", &warnings);

    }

    let patterns = ignore_matcher.debug_get_patterns();

    invocation.ui.write_stdout(patterns)?;

    invocation.ui.write_stdout(b"\n")?;

    Ok(())

}