Add session-util to create a new empty session

session_utils/new_empty_session.cc

@@ -0,0 +1,97 @@
+#include <iostream>
+#include <cstdlib>
+#include <getopt.h>
+
+#include "common.h"
+
+using namespace std;
+using namespace ARDOUR;
+using namespace SessionUtils;
+
+
+static void usage (int status)
+{
+	// help2man compatible format (standard GNU help-text)
+	printf (UTILNAME " - create a new empty session from the commandline.\n\n");
+	printf ("Usage: " UTILNAME " [ OPTIONS ] <session-dir> <session/snapshot-name>\n\n");
+	printf ("Options:\n\
+  -h, --help                 display this help and exit\n\
+  -s, --samplerate <rate>    samplerate to use (default 48000)\n\
+  -V, --version              print version information and exit\n\
+\n");
+	printf ("\n\
+This tool creates a new empty Ardour session.\n\
+\n\
+Note: the tool expects a session-name without .ardour file-name extension.\n\
+\n\
+Examples:\n\
+"UTILNAME " -s 44100 /tmp/TestSession TestSession\n\
+\n");
+
+	printf ("Report bugs to <http://tracker.ardour.org/>\n"
+	        "Website: <http://ardour.org/>\n");
+	::exit (status);
+}
+
+int main (int argc, char* argv[])
+{
+	int sample_rate = 48000;
+
+	const char *optstring = "hs:V";
+
+	const struct option longopts[] = {
+		{ "help",       0, 0, 'h' },
+		{ "samplerate", 1, 0, 's' },
+		{ "version",    0, 0, 'V' },
+	};
+
+	int c = 0;
+	while (EOF != (c = getopt_long (argc, argv,
+					optstring, longopts, (int *) 0))) {
+		switch (c) {
+			case 's':
+				{
+					const int sr = atoi (optarg);
+					if (sr >= 8000 && sr <= 192000) {
+						sample_rate = sr;
+					} else {
+						fprintf(stderr, "Invalid Samplerate\n");
+					}
+				}
+				break;
+
+			case 'V':
+				printf ("ardour-utils version %s\n\n", VERSIONSTRING);
+				printf ("Copyright (C) GPL 2017 Robin Gareus <robin@gareus.org>\n");
+				exit (0);
+				break;
+
+			case 'h':
+				usage (0);
+				break;
+
+			default:
+				usage (EXIT_FAILURE);
+				break;
+		}
+	}
+
+	// XXX perhaps allow to infer the session-name from the dir-name
+	if (optind + 2 > argc) {
+		usage (EXIT_FAILURE);
+	}
+
+	/* all systems go */
+
+	SessionUtils::init();
+	Session* s = 0;
+
+	s = SessionUtils::create_session (argv[optind], argv[optind+1], sample_rate);
+
+	/* save is implicit when creating a new session */
+
+	SessionUtils::unload_session(s);
+	SessionUtils::cleanup();
+
+	return 0;
+}