Use clap for argument parsing

4 files changed, 137 insertions, 23 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 9dade7f..c8c1fb7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3,6 +3,56 @@
 version = 4
 
 [[package]]
+name = "anstream"
+version = "0.6.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43d5b281e737544384e969a5ccad3f1cdd24b48086a0fc1b2a5262a26b8f4f4a"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5192cca8006f1fd4f7237516f40fa183bb07f8fbdfedaa0036de5ea9b0b45e78"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e7644824f0aa2c7b9384579234ef10eb7efb6a0deb83f9630a49594dd9c15c2"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
+dependencies = [
+ "windows-sys 0.61.2",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
+dependencies = [
+ "anstyle",
+ "once_cell_polyfill",
+ "windows-sys 0.61.2",
+]
+
+[[package]]
 name = "atom_syndication"
 version = "0.12.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -77,6 +127,52 @@ dependencies = [
 ]
 
 [[package]]
+name = "clap"
+version = "4.5.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9e340e012a1bf4935f5282ed1436d1489548e8f72308207ea5df0e23d2d03f8"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.5.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d76b5d13eaa18c901fd2f7fca939fefe3a0727a953561fefdf3b2922b8569d00"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.5.49"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a0b5487afeab2deb2ff4e03a807ad1a03ac532ff5a2cee5d86884440c7f7671"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
+
+[[package]]
+name = "colorchoice"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b05b61dc5112cbb17e4b6cd61790d9845d13888356391624cbe7e41efeac1e75"
+
+[[package]]
 name = "core-foundation"
 version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -344,6 +440,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5419bdc4f6a9207fbeba6d11b604d481addf78ecd10c11ad51e76c2f6482748d"
 
 [[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
+[[package]]
 name = "http"
 version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -598,6 +700,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "is_terminal_polyfill"
+version = "1.70.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"
+
+[[package]]
 name = "itoa"
 version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -699,6 +807,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
 [[package]]
+name = "once_cell_polyfill"
+version = "1.70.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
+
+[[package]]
 name = "openssl"
 version = "0.10.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1032,6 +1146,7 @@ checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 name = "simple-rss-podcast-downloader"
 version = "0.1.0"
 dependencies = [
+ "clap",
  "reqwest",
  "rss",
 ]
@@ -1299,6 +1414,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
 
 [[package]]
+name = "utf8parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+
+[[package]]
 name = "vcpkg"
 version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/Cargo.toml b/Cargo.toml
index dbe1e98..d0551e0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,5 +4,6 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+clap = { version = "4", features = ["derive"] }
 reqwest = { version = "0.12", features = ["blocking"] }
 rss = "2"
diff --git a/src/lib.rs b/src/lib.rs
index 12a27e6..78ddfe4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,26 +1,7 @@
 use rss::Channel;
-use std::env;
 use std::fs::File;
 use std::path::PathBuf;
 
-/// Parse CLI arguments and return (feed_url, output_dir)
-pub fn parse_args() -> (String, String) {
-    let mut args: Vec<String> = env::args().collect();
-    if args.len() < 2 {
-        eprintln!("Usage: {} <RSS_FEED_URL> [OUTPUT_DIR]", args[0]);
-        std::process::exit(1);
-    }
-
-    let feed_url = args.remove(1);
-    let output_dir = if args.len() > 1 {
-        args.remove(1)
-    } else {
-        String::from(".")
-    };
-
-    (feed_url, output_dir)
-}
-
 /// Fetch RSS feed content from a URL
 pub fn fetch_feed(url: &str) -> Result<String, reqwest::Error> {
     reqwest::blocking::get(url)?.text()
diff --git a/src/main.rs b/src/main.rs
index 7e28a52..a2ac775 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,15 +1,26 @@
+use clap::Parser;
 use simple_rss_podcast_downloader::*;
 
+#[derive(Parser, Debug)]
+#[command(author, version, about)]
+struct Cli {
+    feed_url: String,
+    #[arg(default_value = ".")]
+    output_dir: String,
+    #[arg(short, long)]
+    numbered: bool,
+}
+
 fn main() -> Result<(), Box<dyn std::error::Error>> {
-    let (feed_url, output_dir) = parse_args();
+    let args = Cli::parse();
 
-    println!("Feed RSS feed from: {}", feed_url);
+    println!("Feed RSS feed from: {}", args.feed_url);
 
-    let xml = fetch_feed(&feed_url)?;
+    let xml = fetch_feed(&args.feed_url)?;
     let channel = parse_feed(&xml)?;
     for url in get_audio_urls(&channel) {
         println!("Downloading file: {}", url);
-        download_file(url, &output_dir)?;
+        download_file(url, &args.output_dir)?;
     }
 
     Ok(())