cargo-crap4rust 0.6.2

Cargo subcommand for computing CRAP scores across Rust crates
Documentation 
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// Copyright 2025 Umberto Gotti <umberto.gotti@umbertogotti.dev>
// Licensed under the MIT License or Apache License, Version 2.0
// SPDX-License-Identifier: MIT OR Apache-2.0

use crate::cli::OutputFormat;
use crate::model::{Config, ProjectReport, Verdict};

pub fn print_report(report: &ProjectReport, config: &Config) {
    match config.output_format {
        OutputFormat::Json => print_json_report(report),
        OutputFormat::Human => print_human_report(report, config),
    }
}

fn print_human_report(report: &ProjectReport, config: &Config) {
    println!("crap4rust report for {}", report.scope_name);
    println!();

    let visible_functions = report
        .functions
        .iter()
        .filter(|function| function.verdict != Verdict::Clean)
        .collect::<Vec<_>>();

    if visible_functions.is_empty() {
        println!(
            "No functions at or above the threshold of {:.1}.",
            config.threshold
        );
    } else {
        let package_width = visible_functions
            .iter()
            .map(|function| function.package_name.len())
            .max()
            .unwrap_or(7)
            .max("package".len());
        let name_width = visible_functions
            .iter()
            .map(|function| function.name.len())
            .max()
            .unwrap_or(4)
            .max("name".len());
        let file_width = visible_functions
            .iter()
            .map(|function| function.relative_file.len())
            .max()
            .unwrap_or(4)
            .max("file".len());

        println!(
            "{:<package_width$}  {:<name_width$}  {:<file_width$}  {:>4}  {:>10}  {:>10}  {:>10}  {:<7}",
            "package", "name", "file", "line", "complexity", "coverage", "crap", "verdict",
        );
        println!(
            "{}  {}  {}  {}  {}  {}  {}  {}",
            "-".repeat(package_width),
            "-".repeat(name_width),
            "-".repeat(file_width),
            "-".repeat(4),
            "-".repeat(10),
            "-".repeat(10),
            "-".repeat(10),
            "-".repeat(7),
        );

        for function in visible_functions {
            println!(
                "{:<package_width$}  {:<name_width$}  {:<file_width$}  {:>4}  {:>10}  {:>9.1}%  {:>10.1}  {:<7}",
                function.package_name,
                function.name,
                function.relative_file,
                function.line,
                function.complexity,
                function.coverage * 100.0,
                function.crap_score,
                function.verdict.as_str(),
            );
        }
    }

    println!();
    println!(
        "summary: total_functions={} crappy_functions={} crappy_percent={:.1}% threshold={:.1} project_threshold={:.1}% verdict={}",
        report.total_functions,
        report.crappy_functions,
        report.crappy_percent,
        config.threshold,
        config.project_threshold,
        report.verdict.as_str(),
    );
}

fn print_json_report(report: &ProjectReport) {
    let json = serde_json::to_string_pretty(report)
        .expect("serialization of report to JSON should never fail");
    println!("{json}");
}