Add version option

Author: maquinas07

src/evid.c

@@ -16,6 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 **/
 
+#include "evid.h"
 #include "actions.h"
 #include "clipboard.h"
 #include "file.h"
@@ -44,8 +45,6 @@
 #include <linux/limits.h>
 #include <sys/wait.h>
 
-#define PROGRAM_NAME "evid"
-
 #define GRAB(dpy, window) grab_keys(dpy, window, SAVE | COPY)
 #define UNGRAB(dpy, window) ungrab_keys(dpy, window, SAVE | COPY)
 
@@ -88,10 +87,11 @@ static void process_args(Args *args, int argc, char **argv) {
       {"audio", optional_argument, NULL, 'a'},
       {"output", required_argument, NULL, 'o'},
       {"help", no_argument, NULL, 'h'},
+      {"version", no_argument, NULL, 'v'},
       {NULL, 0, NULL, 0}};
 
   int opt;
-  while ((opt = getopt_long(argc, argv, "idzgo:f:a::h", long_opts, NULL)) !=
+  while ((opt = getopt_long(argc, argv, "idzgo:f:a::hv", long_opts, NULL)) !=
          -1) {
     switch (opt) {
     case ('i'): {
@@ -143,6 +143,10 @@ static void process_args(Args *args, int argc, char **argv) {
       }
       break;
     }
+    case ('v'): {
+      print_version();
+      exit(EXIT_SUCCESS);
+    }
     case ('h'): {
       print_usage();
       exit(EXIT_SUCCESS);

src/evid.h

@@ -0,0 +1,7 @@
+#ifndef EVID_H
+#define EVID_H
+
+#define PROGRAM_NAME "evid"
+#define PROGRAM_VERSION "0.0.1"
+
+#endif

src/util.c

@@ -17,6 +17,7 @@
 **/
 
 #include "util.h"
+#include "evid.h"
 
 #ifdef HAVE_NOTIFY
 #include "libnotify/notify.h"
@@ -63,7 +64,11 @@ void die(const char *errstr, ...) {
   raise(SIGINT);
 }
 
-void print_usage() {
+void print_version(void) {
+  fprintf(stdout, "%s version %s\n", PROGRAM_NAME, PROGRAM_VERSION);
+}
+
+void print_usage(void) {
   fprintf(
       stdout,
       "Usage: %s [OPTIONS] \n Available options:\n -i|--info\toutput "
@@ -73,7 +78,8 @@ void print_usage() {
       "valid options are pulse and alsa with a comma separated input device, "
       "defaults to pulse,default.\n --no-draw-mouse\thides the pointer in the "
       "output video.\n -g|--gif\toutputs the recording to a gif\n "
-      "-o|--output\tsaves the recording into this file or directory\n"
+      "-o|--output\tsaves the recording into this file or directory\n "
+      "-v|--version show program version\n"
 #ifdef HAVE_ZENITY
       " -z|--use-zenity\tuses a file selection dialog "
       "from zenity instead of a default path to save the output "

src/util.h

@@ -19,12 +19,14 @@
 #ifndef EVID_UTIL_H
 #define EVID_UTIL_H
 
-#define PROGRAM_NAME "evid"
+#include "evid.h"
+
 #define ARR_SIZE(arr) (sizeof(arr) / sizeof(*arr))
 
 void error(const char *errstr, ...);
 void die(const char *errstr, ...);
 
+void print_version(void);
 void print_usage(void);
 
 #endif