From 9d17aeaddfbe7ddfc0615b85283a72224ee4f7b0 Mon Sep 17 00:00:00 2001
From: dokutan <54861821+dokutan@users.noreply.github.com>
Date: Sat, 2 May 2020 16:50:55 +0200
Subject: [PATCH] Add --version option

---
 include/print_help.cpp |  1 +
 makefile               |  6 +++++-
 mouse_m908.1           |  3 +++
 mouse_m908.cpp         | 26 +++++++++++++++++++++++---
 4 files changed, 32 insertions(+), 4 deletions(-)

diff --git a/include/print_help.cpp b/include/print_help.cpp
index dc083fc..4955f60 100644
--- a/include/print_help.cpp
+++ b/include/print_help.cpp
@@ -33,5 +33,6 @@ void print_help(){
 	std::cout << "-b --bus\n\tUSB bus id, requires -d.\n";
 	std::cout << "-d --device\n\tUSB device number, requires -b.\n";
 	std::cout << "-k --kernel-driver\n\tDo not attempt to detach kernel driver.\n";
+	std::cout << "-v --version\n\tPrint version.\n";
 	//std::cout << "-r --repeat\n\tSets number of times the macro will be repeated (1-255).\n";
 }
diff --git a/makefile b/makefile
index 12f0fc8..dc06beb 100644
--- a/makefile
+++ b/makefile
@@ -9,6 +9,9 @@ CC = g++
 CC_OPTIONS := -Wall -Wextra -O2 `pkg-config --cflags libusb-1.0`
 LIBS != pkg-config --libs libusb-1.0
 
+# version string
+VERSION_STRING = "1.7"
+
 # compile
 build: constructor.o data.o getters.o helpers.o load_config.o setters.o writers.o mouse_m908.o
 	$(CC) *.o -o mouse_m908 $(LIBS) $(CC_OPTIONS)
@@ -22,6 +25,7 @@ install:
 	cp ./example.macro $(DOC_DIR)/mouse_m908/ && \
 	cp ./README.md $(DOC_DIR)/mouse_m908/ && \
 	cp ./keymap.md $(DOC_DIR)/mouse_m908/ && \
+	cp ./LICENSE $(DOC_DIR)/mouse_m908/ && \
 	cp ./mouse_m908.1 $(MAN_DIR)/
 
 # remove binary
@@ -40,7 +44,7 @@ upgrade: install
 
 # individual files
 mouse_m908.o:
-	$(CC) -c mouse_m908.cpp $(CC_OPTIONS)
+	$(CC) -c mouse_m908.cpp $(CC_OPTIONS) -D VERSION_STRING=$(VERSION_STRING)
 
 constructor.o:
 	$(CC) -c include/constructor.cpp $(CC_OPTIONS)
diff --git a/mouse_m908.1 b/mouse_m908.1
index 17b5524..3d3fde7 100644
--- a/mouse_m908.1
+++ b/mouse_m908.1
@@ -40,6 +40,9 @@ USB device address, with this option the mouse gets opened by its bus id and dev
 .TP
 \fB\-k\fR, \fB\-\-kernel\-driver\fR
 Do not attempt to detach the kernel drivers. Useful for compatibility on some systems.
+.TP
+\fB\-v\fR, \fB\-\-version\fR
+Print version.
 .SH EXAMPLES
 To send the configuration from example.ini
 .PP
diff --git a/mouse_m908.cpp b/mouse_m908.cpp
index 4e913e7..c261c83 100644
--- a/mouse_m908.cpp
+++ b/mouse_m908.cpp
@@ -30,6 +30,11 @@
 #include "include/load_config.h"
 #include "include/print_help.cpp"
 
+// this is the default version string
+// the version string gets overwritten by the makefile
+#ifndef VERSION_STRING
+#define VERSION_STRING "no version defined during compilation"
+#endif
 
 // this function checks its arguments and opens the mouse accordingly
 // (with vid and pid or with bus and device)
@@ -75,6 +80,12 @@ int main( int argc, char **argv ){
 	
 	mouse_m908 m;
 	
+	// if no arguments: print help
+	if( argc == 1 ){
+		print_help();
+		return 0;
+	}
+	
 	//command line options
 	static struct option long_options[] = {
 		{"help", no_argument, 0, 'h'},
@@ -86,6 +97,7 @@ int main( int argc, char **argv ){
 		{"bus", required_argument, 0, 'b'},
 		{"device", required_argument, 0, 'd'},
 		{"kernel-driver", no_argument, 0, 'k'},
+		{"version", no_argument, 0, 'v'},
 		{0, 0, 0, 0}
 	};
 	
@@ -93,6 +105,7 @@ int main( int argc, char **argv ){
 	bool flag_macro = false, flag_number = false;
 	bool flag_bus = false, flag_device = false;
 	bool flag_kernel_driver = false;
+	bool flag_version = false;
 	//bool flag_repeat;
 	std::string string_config, string_profile;
 	std::string string_macro, string_number;
@@ -101,8 +114,8 @@ int main( int argc, char **argv ){
 	
 	//parse command line options
 	int c, option_index = 0;
-	//while( (c = getopt_long( argc, argv, "hc:p:m:n:r:",
-	while( (c = getopt_long( argc, argv, "hc:p:m:n:b:d:k",
+	//while( (c = getopt_long( argc, argv, "hc:p:m:n:b:d:kvr:",
+	while( (c = getopt_long( argc, argv, "hc:p:m:n:b:d:kv",
 	long_options, &option_index ) ) != -1 ){
 		
 		switch( c ){
@@ -141,6 +154,9 @@ int main( int argc, char **argv ){
 			case 'k':
 				flag_kernel_driver = true;
 				break;
+			case 'v':
+				flag_version = true;
+				break;
 			case '?':
 				break;
 			default:
@@ -151,7 +167,11 @@ int main( int argc, char **argv ){
 	// set wether to detach kernel driver
 	m.set_detach_kernel_driver( !flag_kernel_driver );
 	
-	//load and write config
+	// print version if requested
+	if( flag_version )
+		std::cout << "Version: " << VERSION_STRING << "\n";
+	
+	// load and write config
 	if( flag_config ){
 		try{