ruff 0.15.21

An extremely fast Python linter and code formatter
Documentation 
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use std::io::Write;
use std::path::PathBuf;

use anyhow::{Result, bail};
use itertools::Itertools;

use ruff_workspace::resolver::{PyprojectConfig, ResolvedFile, project_files_in_path};

use crate::args::ConfigArguments;

/// Print the user-facing configuration settings.
pub(crate) fn show_settings(
    files: &[PathBuf],
    pyproject_config: &PyprojectConfig,
    config_arguments: &ConfigArguments,
    writer: &mut impl Write,
) -> Result<()> {
    // Collect all files in the hierarchy.
    let (paths, resolver) = project_files_in_path(files, pyproject_config, config_arguments)?;

    // Print the list of files.
    let Some(path) = paths
        .into_iter()
        .flatten()
        .map(ResolvedFile::into_path)
        .sorted_unstable()
        .next()
    else {
        bail!("No files found under the given path");
    };

    let (settings, config_path) = resolver.resolve_with_path(&path);

    writeln!(writer, "Resolved settings for: \"{}\"", path.display())?;
    if let Some(settings_path) = config_path {
        writeln!(writer, "Settings path: \"{}\"", settings_path.display())?;
    }
    write!(writer, "{settings}")?;

    Ok(())
}