Add tool ratbag-command to test the library

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>

.gitignore

@@ -41,3 +41,4 @@ test-build-cxx
 test-build-linker
 test-build-pedantic-c99
 test-build-std-gnuc90
+ratbag-command

tools/Makefile.am

@@ -1,7 +1,12 @@
-noinst_PROGRAMS = 
+noinst_PROGRAMS = ratbag-command
 bin_PROGRAMS = 
 noinst_LTLIBRARIES =
 
 AM_CPPFLAGS = -I$(top_srcdir)/include \
               -I$(top_srcdir)/src \
               -I$(top_builddir)/src  # for libratbag-version.h
+
+ratbag_command_SOURCES = ratbag-command.c
+ratbag_command_LDADD = ../src/libratbag.la
+ratbag_command_LDFLAGS = -no-install
+ratbag_command_CFLAGS =

tools/ratbag-command.c

@@ -0,0 +1,89 @@
+/*
+ * Copyright © 2015 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <libratbag.h>
+
+static void
+list_ratbags_usage(void)
+{
+	printf("Usage: %s [options] /dev/input/eventX]\n"
+	       "/path/to/device .... open the given device only\n"
+	       "\n"
+	       "Features:\n"
+	       "\n"
+	       "Other options:\n"
+	       "--verbose ....... Print debugging output.\n"
+	       "--help .......... Print this help.\n",
+		program_invocation_short_name);
+}
+
+int
+main(int argc, char **argv)
+{
+	struct ratbag *rb;
+	struct libratbag *libratbag;
+	char *path;
+	int fd;
+	int retval = 0;
+
+	if (argc < 2) {
+		list_ratbags_usage();
+		return 1;
+	}
+
+	path = argv[1];
+	fd = open(path, O_RDWR);
+	if (fd <= 0) {
+		fprintf(stderr, "Can't open '%s': %s\n", path, strerror(errno));
+		return 1;
+	}
+
+	libratbag = libratbag_create_context();
+	if (!libratbag) {
+		fprintf(stderr, "Can't initilize libratbag\n");
+		return 1;
+	}
+
+	rb = ratbag_new_from_fd(libratbag, fd);
+
+	if (!rb) {
+		fprintf(stderr, "Looks like '%s' is not supported\n", path);
+		retval = 1;
+		goto out;
+	}
+
+	fprintf(stderr, "Opened '%s' (%s).\n", ratbag_get_name(rb), path);
+
+out:
+	rb = ratbag_unref(rb);
+	libratbag_unref(libratbag);
+	close(fd);
+	return retval;
+}