From cd70c68a01b171ca6098550c9c034c01e826fd16 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sun, 7 Aug 2016 14:31:34 +0200
Subject: [PATCH] Add support for --help and -h

---
 bin/src/main.rs | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/bin/src/main.rs b/bin/src/main.rs
index fb6dba6a..03cedd72 100644
--- a/bin/src/main.rs
+++ b/bin/src/main.rs
@@ -125,10 +125,23 @@ fn main() {
                       .takes_value(false)
                       .required(false)
                       .multiple(false)
-                      .help("Get the versions of the imag commands"));
+                      .help("Get the versions of the imag commands"))
+                 .arg(Arg::with_name("help")
+                      .long("help")
+                      .short("h")
+                      .takes_value(false)
+                      .required(false)
+                      .multiple(false)
+                      .help("Show help"));
+
 
     let matches = app.get_matches();
 
+    if matches.is_present("help") {
+        help(get_commands());
+        exit(0);
+    }
+
     if matches.is_present("version") {
         println!("imag {}", &version!()[..]);
         exit(0);