Add command line parsing

Closes #6

1 files changed, 76 insertions, 2 deletions

diff --git a/sway/main.c b/sway/main.c
index 2db4604c..4a7e13c1 100644
--- a/sway/main.c
+++ b/sway/main.c
@@ -4,6 +4,7 @@
 #include <wlc/wlc.h>
 #include <sys/wait.h>
 #include <signal.h>
+#include <getopt.h>
 #include "layout.h"
 #include "config.h"
 #include "log.h"
@@ -12,23 +13,96 @@
 static void sigchld_handle(int signal);
 
 int main(int argc, char **argv) {
+        static int verbose = 0, debug = 0, validate = 0;
+
+        static struct option long_options[] = {
+                {"config", required_argument, NULL, 'c'},
+                {"validate", no_argument, &validate, 1},
+                {"debug", no_argument, &debug, 1},
+                {"version", no_argument, NULL, 'v'},
+                {"verbose", no_argument, &verbose, 1},
+                {"get-socketpath", no_argument, NULL, 'p'},
+        };
+
         /* Signal handling */
         signal(SIGCHLD, sigchld_handle);
 
         setenv("WLC_DIM", "0", 0);
+
+        FILE *devnull = fopen("/dev/null", "w");
+        if (devnull) {
+                // NOTE: Does not work, see wlc issue #54
+                wlc_set_log_file(devnull);
+        }
+
         /* Changing code earlier than this point requires detailed review */
         if (!wlc_init(&interface, argc, argv)) {
                 return 1;
         }
 
-        init_log(L_DEBUG); // TODO: Control this with command line arg
+        char *config_path = NULL;
+
+        int c;
+        while (1) {
+                int option_index = 0;
+                c = getopt_long(argc, argv, "CdvVpc:", long_options, &option_index);
+                if (c == -1) {
+                        break;
+                }
+                switch (c) {
+                case 0: // Flag
+                        break;
+                case 'c': // config
+                        config_path = strdup(optarg);
+                        break;
+                case 'C': // validate
+                        validate = 1;
+                        break;
+                case 'd': // debug
+                        debug = 1;
+                        break;
+                case 'v': // version
+                        // todo
+                        exit(0);
+                        break;
+                case 'V': // verbose
+                        verbose = 1;
+                        break;
+                case 'p': // --get-socketpath
+                        // TODO
+                        break;
+                }
+        }
+
+        if (debug) {
+                init_log(L_DEBUG);
+                wlc_set_log_file(stderr);
+                fclose(devnull);
+                devnull = NULL;
+        } else if (verbose || validate) {
+                init_log(L_INFO);
+        } else {
+                init_log(L_ERROR);
+        }
+
+        if (validate) {
+                bool valid = load_config(config_path);
+                return valid ? 0 : 1;
+        }
+
         init_layout();
 
-        if (!load_config()) {
+        if (!load_config(config_path)) {
                 sway_log(L_ERROR, "Error(s) loading config!");
         }
+        if (config_path) {
+                free(config_path);
+        }
 
         wlc_run();
+        if (devnull) {
+                fclose(devnull);
+        }
 
         return 0;
 }