Crate swizzy 

swizzy

A fast, developer-friendly SwiftLint output formatter that groups issues by file and provides clickable file paths for editor integration.

Features

• Grouped Output: Issues are organized by file for better readability
• Editor Integration: File paths with line numbers are clickable in most editors/IDEs
• Smart Colors: Automatically disables colors when output is redirected
• Zero Configuration: Works out of the box with SwiftLint JSON output
• Fast Performance: Built with Rust for maximum speed
• Flexible Input: Accepts piped input or runs SwiftLint directly

Usage

# Pipe SwiftLint JSON output to swizzy
swiftlint lint --reporter json | swizzy

# Run from a directory containing Swift source files
swizzy

Exit Codes

• 0: No issues found or successfully processed
• 1: Issues were found and reported

Library Usage

While swizzy is primarily a command-line tool, its core functionality is available as a library for integration into other Rust applications:

use swizzy::{parse_swiftlint_output, group_issues_by_file, format_issues_output};

let json_input = r#"[{"file": "test.swift", "line": 1, "severity": "warning", "reason": "Test issue", "rule_id": null}]"#;
let issues = parse_swiftlint_output(json_input).unwrap();
let grouped = group_issues_by_file(issues);
let (formatted, count) = format_issues_output(grouped, false);
println!("{}", formatted);

Structs

SwiftlintIssue

Represents a single SwiftLint issue parsed from JSON output.

Functions

format_issue

Formats a single SwiftLint issue for display.

format_issues_output

Formats all grouped SwiftLint issues for display.

group_issues_by_file

Groups SwiftLint issues by their file path.

parse_swiftlint_output

Parses SwiftLint JSON output into a vector of issues.