feat: use clap to parse arguments

BREAKING CHANGE: Updating to clap gives us a nicer API, cleaner
code, and automatic CLI help.

src/main.rs

@@ -1,29 +1,46 @@
 mod models;
 
+use clap::Parser;
 use colored::Colorize;
 use dialoguer::{theme::ColorfulTheme, Input};
 use jwalk::WalkDir;
 use models::{todo::Todo, todo_type::contains_todo_type};
 use std::fs;
 
+#[derive(Parser, Debug)]
+#[clap(version, author = "Rickard Natt och Dag", name = "Todos")]
+enum Cli {
+ /// Find todos in a directory
+ Find {
+ /// Path to the directory to search in (default: src)
+ path: Option<String>,
+
+ /// Open file in editor
+ #[clap(short, long)]
+ open: bool,
+
+ /// Filter todos by a string
+ #[clap(short, long)]
+ filter: Option<String>,
+ },
+}
+
 fn main() -> Result<(), Box<dyn std::error::Error>> {
- let path = std::env::args().nth(1);
- let needle = std::env::args().nth(2);
+ let opt = Cli::parse();
 
- // Display help if no path is provided
- if path.is_none() || path == Some("--help".to_string()) {
- println!("Usage: todo <path> [filter]");
- return Ok(());
- }
+ let (path, is_open_cmd, needle) = match opt {
+ Cli::Find { path, open, filter } => {
+ let path = path.unwrap_or_else(|| "src".to_string());
 
- let is_open_cmd = needle == Some("--open".to_string());
+ (path, open, filter)
+ }
+ };
 
  let mut files_scanned = 0;
  let mut ok_files = 0;
  let mut filtered_files = 0;
  let mut todos: Vec<Todo> = vec![];
 
- let path = path.unwrap();
  let supported_filetypes = vec!["ts", "js", "tsx", "jsx", "vue", "html", "scss"];
  let gitignore = fs::read_to_string(".gitignore")?;
  let gitignore = gitignore
@@ -67,7 +84,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
  // Check and parse todos
  for line in file_contents.lines().enumerate() {
  if contains_todo_type(line.1).is_ok() {
- if !is_open_cmd && needle.is_some() && !line.1.contains(needle.as_ref().unwrap()) {
+ if needle.is_some() && !line.1.contains(needle.as_ref().unwrap()) {
  filtered_files += 1;
  continue;
  }