Partial arg parsing.

Author: lgarron

.gitignore

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+/target

Cargo.lock

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+[package]
+name = "folderify"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = { version = "4.1.8", features = ["derive"] }

Cargo.toml

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+use clap::Parser;
+
+/// Generate a native-style macOS folder icon from a mask file.
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+struct Args {
+    /// Mask image file. For best results:
+    /// - Use a .png mask.
+    /// - Use a solid black design over a transparent background.
+    /// - Make sure the corner pixels of the mask image are transparent. They are used for empty margins.
+    /// - Make sure the non-transparent pixels span a height of 384px, using a 16px grid.
+    /// If the height is 384px and the width is a multiple of 128px, each 64x64 tile will exactly align with 1 pixel at the smallest folder size.
+    #[clap(verbatim_doc_comment)]
+    mask: std::path::PathBuf,
+    /// Target file or folder.
+    /// If a target is specified, the resulting icon will be applied to the target file/folder.
+    /// Else, a .iconset folder and .icns file will be created in the same folder as the mask
+    /// (you can use "Get Info" in Finder to copy the icon from the .icns file).
+    #[clap(verbatim_doc_comment)]
+    target: Option<std::path::PathBuf>,
+
+    /// Reveal the target (or resulting .icns file) in Finder.
+    #[clap(short, long)]
+    reveal: bool,
+
+    /// Version of the macOS folder icon, e.g. "10.13".
+    /// Defaults to the version currently running.
+    #[clap(long = "macOS", alias = "osx", short_alias = 'x')]
+    mac_os: Option<String>, // TODO: enum, default?
+
+    /// Color scheme: auto (match current system), light, dark.
+    color_scheme: Option<String>,
+}
+
+fn main() {
+    let args = Args::parse();
+
+    println!("Target: {}", args.mask.display());
+}