Use clap for msvg (#83)

Cargo.toml

@@ -16,6 +16,7 @@ whiskers-derive = { path = "crates/whiskers-derive", version = "=0.4.0-alpha.0"
 anyhow = "1"
 bumpalo = "3.14.0"  # avoid yanked 3.12.1, pulled by wasm-bindgen
 camino = "1.1.0"
+clap = "4.4.12"
 convert_case = "0.6.0"
 criterion = "0.5.1"
 eframe = { version = "0.24.1", default-features = false, features = [

crates/msvg/Cargo.toml

@@ -24,6 +24,7 @@ vsvg-viewer.workspace = true
 
 anyhow.workspace = true
 camino.workspace = true
+clap = { workspace = true, features = ["derive"] }
 egui.workspace = true
 eframe.workspace = true
 rayon.workspace = true

crates/msvg/src/main.rs

@@ -5,6 +5,7 @@
 use std::path::{Path, PathBuf};
 
 use camino::Utf8PathBuf;
+use clap::Parser;
 
 use vsvg_viewer::show_with_viewer_app;
 
@@ -32,10 +33,20 @@ fn visit_dir(dir: &Path, paths: &mut Vec<Utf8PathBuf>) -> anyhow::Result<()> {
     Ok(())
 }
 
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+struct Args {
+    /// SVG files or directories
+    #[arg(required = true, num_args = 1..)]
+    paths: Vec<PathBuf>,
+}
+
 fn main() -> anyhow::Result<()> {
+    let args = Args::parse();
+
     let mut svg_list = Vec::new();
 
-    for path in std::env::args().skip(1).map(PathBuf::from) {
+    for path in args.paths {
         if path.is_dir() {
             visit_dir(&path, &mut svg_list)?;
         } else {

crates/vsvg-cli/Cargo.toml

@@ -23,18 +23,18 @@ path = "src/main.rs"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-egui.workspace = true
+vsvg = { workspace = true, features = ["egui"] }
+vsvg-viewer.workspace = true
+
+clap = { workspace = true, features = ["cargo"] }
+dhat = { version = "0.3.2", optional = true } # for heap profiling
 eframe.workspace = true
-serde.workspace = true
+egui.workspace = true
 kurbo.workspace = true
 rand.workspace = true
 rand_chacha.workspace = true
+serde.workspace = true
 tracing-subscriber = "0.3.16"
-clap = { version = "4.1.6", features = ["cargo"]}
-vsvg = { workspace = true, features = ["egui"] }
-vsvg-viewer.workspace = true
-dhat = { version = "0.3.2", optional = true } # for heap profiling
-
 
 
 # for dhat-heap!!