create SQLite database on startup

1 files changed, 31 insertions, 11 deletions

diff --git a/src/server_main.c b/src/server_main.c
index b77a681..e2d811c 100644
--- a/src/server_main.c
+++ b/src/server_main.c
@@ -7,18 +7,32 @@
 
 static struct settings default_settings()
 {
-	struct settings settings = {DEFAULT_PORT};
+	struct settings settings = {DEFAULT_PORT, NULL};
 	return settings;
 }
 
-static void print_usage(const char *argv0)
+static void exit_with_usage(int ec, const char *argv0)
 {
-	printf("usage: %s [-h|--help] [-V|--version] [-p|--port PORT]\n", argv0);
+	FILE *dest = stdout;
+	if (ec)
+		dest = stderr;
+
+	fprintf(dest, "usage: %s [-h|--help] [-V|--version] [-p|--port PORT] [-s|--sqlite PATH]\n",
+	        argv0);
+	exit(ec);
+}
+
+static void exit_with_usage_err(const char *argv0, const char *msg)
+{
+	if (msg)
+		fprintf(stderr, "usage error: %s\n", msg);
+	exit_with_usage(1, argv0);
 }
 
-static void print_version()
+static void exit_with_version()
 {
 	printf("%s\n", VERSION);
+	exit(0);
 }
 
 static int parse_settings(struct settings *settings, int argc, char *argv[])
@@ -31,29 +45,35 @@ static int parse_settings(struct settings *settings, int argc, char *argv[])
 	    {"help", no_argument, 0, 'h'},
 	    {"version", no_argument, 0, 'V'},
 	    {"port", required_argument, 0, 'p'},
+	    {"sqlite", required_argument, 0, 's'},
 	    {0, 0, 0, 0},
 	};
 
-	while ((opt = getopt_long(argc, argv, "hVp:", long_options, &longind)) != -1) {
+	while ((opt = getopt_long(argc, argv, "hVp:s:", long_options, &longind)) != -1) {
 		switch (opt) {
 		case 'h':
-			print_usage(argv[0]);
-			exit(0);
+			exit_with_usage(0, argv[0]);
 			break;
 		case 'V':
-			print_version();
-			exit(0);
+			exit_with_version();
 			break;
 		case 'p':
 			settings->port = optarg;
 			break;
+		case 's':
+			settings->sqlite_path = optarg;
+			break;
 		default:
-			print_usage(argv[0]);
-			exit(1);
+			exit_with_usage(1, argv[0]);
 			break;
 		}
 	}
 
+	if (!settings->sqlite_path) {
+		exit_with_usage_err(argv[0], "must specify the path to a SQLite database");
+		return -1;
+	}
+
 	return 0;
 }