Move the command line arguments to a module

src/args.rs

@@ -0,0 +1,56 @@
+use std::path::PathBuf;
+use structopt::StructOpt;
+
+#[derive(StructOpt)]
+#[structopt(name = "alma", about = "Arch Linux Mobile Appliance")]
+pub struct App {
+    /// Verbose output
+    #[structopt(short = "v", long = "verbose")]
+    pub verbose: bool,
+
+    #[structopt(subcommand)]
+    pub cmd: Command,
+}
+
+#[derive(StructOpt)]
+pub enum Command {
+    #[structopt(name = "create", about = "Create a new Arch Linux USB")]
+    Create(CreateCommand),
+
+    #[structopt(name = "chroot", about = "Chroot into exiting Live USB")]
+    Chroot(ChrootCommand),
+}
+
+#[derive(StructOpt)]
+pub struct CreateCommand {
+    /// Path starting with /dev/disk/by-id for the USB drive
+    #[structopt(parse(from_os_str))]
+    pub block_device: PathBuf,
+
+    /// Additional pacakges to install
+    #[structopt(short = "p", long = "extra-packages", value_name = "package")]
+    pub extra_packages: Vec<String>,
+
+    /// Enter interactive chroot before unmounting the drive
+    #[structopt(short = "i", long = "interactive")]
+    pub interactive: bool,
+
+    /// Encrypt the root partition
+    #[structopt(short = "e", long = "encrypted-root")]
+    pub encrypted_root: bool,
+}
+
+#[derive(StructOpt)]
+pub struct ChrootCommand {
+    /// Path starting with /dev/disk/by-id for the USB drive
+    #[structopt(parse(from_os_str))]
+    pub block_device: PathBuf,
+
+    /// Open an encrypted root partition
+    #[structopt(short = "e", long = "encrypted-root")]
+    pub encrypted_root: bool,
+
+    /// Optional command to run
+    #[structopt()]
+    pub command: Vec<String>,
+}