move the structopt struct into the lib

src/config.rs

@@ -1,8 +1,16 @@
 use std::path::{Path, PathBuf};
 
+#[derive(Debug, StructOpt)]
 pub struct Config {
+    /// The root configuration directory for dip. This argument is required.
+    #[structopt(short = "d", long = "root", parse(from_os_str))]
     pub root: PathBuf,
+    /// A string containing the address to bind to. This defaults to "0.0.0.0:5000".
+    #[structopt(short = "b", long = "bind", default_value = "0.0.0.0:5000")]
     pub bind: String,
+    /// If a hook is specified here, it will be triggered manually exactly once and then the
+    /// program will exit rather than running as a server.
+    #[structopt(short = "h", long = "hook")]
     pub hook: Option<String>,
 }
 

src/lib.rs

@@ -10,6 +10,8 @@ extern crate serde_json;
 #[macro_use]
 extern crate lazy_static;
 extern crate notify;
+#[macro_use]
+extern crate structopt;
 extern crate regex;
 extern crate toml;
 extern crate walkdir;

src/main.rs

@@ -1,32 +1,12 @@
-#[macro_use]
-extern crate structopt;
 extern crate dip;
 extern crate failure;
-
-use std::path::PathBuf;
+extern crate structopt;
 
 use dip::Config;
 use failure::Error;
 use structopt::StructOpt;
 
-#[derive(Debug, StructOpt)]
-struct Opt {
-    /// The root configuration directory for dip. This argument is required.
-    #[structopt(short = "d", long = "root", parse(from_os_str))]
-    root: PathBuf,
-    /// A string containing the address to bind to. This defaults to "0.0.0.0:5000".
-    #[structopt(short = "b", long = "bind")]
-    bind: Option<String>,
-    /// If a hook is specified here, it will be triggered manually exactly once and then the
-    /// program will exit rather than running as a server.
-    #[structopt(short = "h", long = "hook")]
-    hook: Option<String>,
-}
-
 fn main() -> Result<(), Error> {
-    let opt = Opt::from_args();
-    println!("{:?}", opt);
-
-    let config = Config::new(opt.root).bind(opt.bind).hook(opt.hook);
+    let config = Config::from_args();
     dip::run(&config)
 }