feat(init): init command

src/subcommands/init.rs

@@ -0,0 +1,20 @@
+use clap::{Arg, ArgMatches, Command};
+
+use crate::commands;
+use crate::config::config::Config;
+
+pub fn create() -> Command {
+    Command::new("init")
+        .arg(
+            Arg::new("directory")
+                .required(false)
+                .num_args(1)
+                .value_name("DIRECTORY"),
+        )
+        .about("Create an empty Nextsync repository")
+}
+
+pub fn handler(args: &ArgMatches) {
+    let exec_dir = args.get_one::<String>("directory");
+    commands::init::exec(commands::init::InitArgs {}, Config::new(exec_dir));
+}