Initializes init command

src/main.rs

@@ -1,14 +1,26 @@
-use clap::Command;
-use std::process::ExitCode;
+use clap::{value_parser, Arg, ArgMatches, Command};
+use std::{path::PathBuf, process::ExitCode};
 
 fn main() -> ExitCode {
     // Parse arguments.
-    let args = Command::new("warp").get_matches();
+    let args = Command::new("warp")
+        .subcommand(
+            Command::new("init")
+                .about("Setup an existing directory to be resuming on another computer")
+                .arg(Arg::new("name").help(
+                    "Unique name of this directory on the server (default to directory name)",
+                ).long("name").value_name("NAME"))
+                .arg(
+                    Arg::new("server")
+                        .help("URL of the server to use (default to https://api.warpgate.sh)").long("server").value_name("URL"),
+                ).arg(Arg::new("directory").help("The directory to setup (default to current directory)").value_name("DIRECTORY").value_parser(value_parser!(PathBuf))),
+        )
+        .get_matches();
 
     // Execute the command.
     let res = match args.subcommand() {
-        Some(_) => todo!(),
-        None => wrap(),
+        Some(("init", args)) => init(args),
+        _ => wrap(),
     };
 
     match res {
@@ -17,6 +29,10 @@ fn main() -> ExitCode {
     }
 }
 
+fn init(_: &ArgMatches) -> Result<(), ExitCode> {
+    todo!()
+}
+
 fn wrap() -> Result<(), ExitCode> {
     // Get current shell.
     let shell = match std::env::var_os("SHELL") {