From 326076c46cbdc7afc9bcc2df56aa0b95d174f927 Mon Sep 17 00:00:00 2001
From: flu0r1ne <flu0r1ne@flu0r1ne.net>
Date: Tue, 12 Sep 2023 15:58:43 -0500
Subject: Add version subcommand

---
 README.md       | 10 ++++++----
 src/main.cpp    | 10 ++++++++--
 src/version.hpp |  3 +++
 3 files changed, 17 insertions(+), 6 deletions(-)
 create mode 100644 src/version.hpp

diff --git a/README.md b/README.md
index 6153e1d..f41a5d8 100644
--- a/README.md
+++ b/README.md
@@ -97,10 +97,12 @@ specific components of the configurations and outputs them to `stdout`. The `ins
 installs the configuration with the appropriate permissions.
 
 ```plaintext
-Usage: ./wg2nd { install, generate } [ OPTIONS ] { -h, CONFIG_FILE }
+Usage: wg2nd { install, generate } [ OPTIONS ] { -h, CONFIG_FILE }
+Usage: wg2nd version
 
-  CONFIG_FILE is the complete path to a WireGuard configuration file used by
-  `wg-quick`. `wg2nd` converts the WireGuard configuration to networkd files.
+  CONFIG_FILE is the complete path to a WireGuard configuration file, used by
+  `wg-quick`. `wg2nd` will convert the WireGuard configuration to networkd
+  files.
 
   The generated configurations are functionally equivalent to `wg-quick(8)`
   with the following exceptions:
@@ -127,7 +129,7 @@ Usage: ./wg2nd { install, generate } [ OPTIONS ] { -h, CONFIG_FILE }
 ```
 
 ```plaintext
-Usage: ./wg2nd install [ -h ] [ -f FILE_NAME ] [ -o OUTPUT_PATH ] CONFIG_FILE
+Usage: wg2nd install [ -h ] [ -f FILE_NAME ] [ -o OUTPUT_PATH ] CONFIG_FILE
 
   `wg2nd install` translates `wg-quick(8)` configuration into corresponding
   `networkd` configuration and installs the resulting files in `OUTPUT_PATH`.
diff --git a/src/main.cpp b/src/main.cpp
index a5dbf8b..e685e10 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4,6 +4,8 @@
  * Copyright (C) 2023 Alex David <flu0r1ne@flu0r1ne.net>
  */
 
+#include "version.hpp"
+
 #include <iostream>
 #include <string>
 #include <vector>
@@ -94,12 +96,14 @@ constexpr char const * DEFAULT_OUTPUT_PATH = "/etc/systemd/network/";
  */
 
 void die_usage(const char *prog) {
-	err("Usage: %s { install, generate } [ OPTIONS ] { -h, CONFIG_FILE }", prog);
+	err("Usage: %s {  install, generate } [ OPTIONS ] { -h, CONFIG_FILE }", prog);
+	err("Usage: %s version", prog);
 	die("Use -h for help");
 }
 
 void print_help(const char *prog) {
-	err("Usage: %s { install, generate } [ OPTIONS ] { -h, CONFIG_FILE }\n", prog);
+	err("Usage: %s { install, generate } [ OPTIONS ] { -h, CONFIG_FILE }", prog);
+	err("Usage: %s version\n", prog);
 	err("  CONFIG_FILE is the complete path to a WireGuard configuration file, used by");
 	err("  `wg-quick`. `wg2nd` will convert the WireGuard configuration to networkd");
 	err("  files.\n");
@@ -437,6 +441,8 @@ int main(int argc, char **argv) {
 		return wg2nd_generate(prog, argc - 1, argv + 1);
 	} else if (action == "install") {
 		return wg2nd_install(prog, argc - 1, argv + 1);
+	} else if (action == "version") {
+		printf("%s\n", VERSION);
 	} else if (action == "-h" || action == "--help") {
 		print_help(prog);
 	} else {
diff --git a/src/version.hpp b/src/version.hpp
new file mode 100644
index 0000000..3e8675e
--- /dev/null
+++ b/src/version.hpp
@@ -0,0 +1,3 @@
+#pragma once
+
+constexpr char const * VERSION = "v0.1.0";
-- 
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