From 6ad5626a5d6ac98a9da445dc706a338d1475eb54 Mon Sep 17 00:00:00 2001
From: Teddy Wing
Date: Mon, 12 Apr 2021 23:11:32 +0200
Subject: Add `--help` and `--version` flags

---
 src/main.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src')

diff --git a/src/main.rs b/src/main.rs
index 96c0f98..e688968 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -52,8 +52,21 @@ fn run() -> anyhow::Result<()> {
     opts.optflag("", "fill", "fill in the form using a markup file");
     opts.optflag("", "generate", "generate helper files to fill in the form");
 
+    opts.optflag("h", "help", "print this help menu");
+    opts.optflag("V", "version", "show the program version");
+
     let opt_matches = opts.parse(&args[1..])?;
 
+    if opt_matches.opt_present("h") {
+        print_usage(&opts);
+        process::exit(exitcode::USAGE);
+    }
+
+    if opt_matches.opt_present("V") {
+        println!("{}", env!("CARGO_PKG_VERSION"));
+        process::exit(exitcode::OK);
+    }
+
     if opt_matches.free.is_empty() {
         print_usage(&opts);
 
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