X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng%2Fcommands%2Fversion.cpp;fp=src%2Fbin%2Flttng%2Fcommands%2Fversion.cpp;h=ccc7f6633d7e4a318e7aae6a4f3eb926b1295463;hp=0000000000000000000000000000000000000000;hb=48a4000561343808724f7cb5fa8c131877489ccd;hpb=81663f073dbfb4b61c06a0ceb8ca33c4fc41b1c5

diff --git a/src/bin/lttng/commands/version.cpp b/src/bin/lttng/commands/version.cpp
new file mode 100644
index 000000000..ccc7f6633
--- /dev/null
+++ b/src/bin/lttng/commands/version.cpp
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#define _LGPL_SOURCE
+#include <popt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <common/mi-lttng.h>
+
+#include "../command.h"
+#include "version.h"
+
+#ifdef LTTNG_EMBED_HELP
+static const char help_msg[] =
+#include <lttng-version.1.h>
+;
+#endif
+
+enum {
+	OPT_HELP = 1,
+	OPT_LIST_OPTIONS,
+};
+
+static const char *lttng_license = "lttng is free software and under the GPL license and part LGPL";
+
+static struct poptOption long_options[] = {
+	/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
+	{"help",      'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
+	{"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL},
+	{0, 0, 0, 0, 0, 0, 0}
+};
+
+/*
+ *  create_version
+ */
+static void create_version(struct mi_lttng_version_data *version)
+{
+	strncpy(version->version, VERSION, NAME_MAX);
+	version->version_major = VERSION_MAJOR;
+	version->version_minor = VERSION_MINOR;
+	version->version_patchlevel = VERSION_PATCHLEVEL;
+	strncpy(version->version_commit, GIT_VERSION, NAME_MAX);
+	strncpy(version->version_name, VERSION_NAME, NAME_MAX);
+	strncpy(version->package_url, PACKAGE_URL, NAME_MAX);
+}
+
+/*
+ * Print the machine interface output of this command.
+ */
+static int print_mi(void)
+{
+	int ret = CMD_SUCCESS;
+	struct mi_writer *writer = NULL;
+	struct mi_lttng_version_data version;
+
+	create_version(&version);
+
+	writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
+	if (!writer) {
+		ret = -LTTNG_ERR_NOMEM;
+		goto end;
+	}
+
+	/* Open the command element */
+	ret = mi_lttng_writer_command_open(writer,
+			mi_lttng_element_command_version);
+	if (ret) {
+		ret = CMD_ERROR;
+		goto error;
+	}
+
+	/* Beginning of output */
+	ret = mi_lttng_writer_open_element(writer,
+			mi_lttng_element_command_output);
+	if (ret) {
+		ret = CMD_ERROR;
+		goto error;
+	}
+
+	/* Print the machine interface of version */
+	ret = mi_lttng_version(writer, &version,
+			VERSION_DESCRIPTION, lttng_license);
+	if (ret) {
+		ret = CMD_ERROR;
+		goto error;
+	}
+
+	/* Close the output element */
+	ret = mi_lttng_writer_close_element(writer);
+	if (ret) {
+		ret = CMD_ERROR;
+		goto error;
+	}
+
+	/* Close the command  */
+	ret = mi_lttng_writer_command_close(writer);
+	if (ret) {
+		ret = CMD_ERROR;
+	}
+
+error:
+	/* Cleanup */
+	if (writer && mi_lttng_writer_destroy(writer)) {
+		/* Preserve original error code */
+		ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL;
+	}
+
+end:
+	return ret;
+}
+
+/*
+ *  cmd_version
+ */
+int cmd_version(int argc, const char **argv)
+{
+	int opt, ret = CMD_SUCCESS;
+	static poptContext pc;
+
+	pc = poptGetContext(NULL, argc, argv, long_options, 0);
+	poptReadDefaultConfig(pc, 0);
+
+	while ((opt = poptGetNextOpt(pc)) != -1) {
+		switch (opt) {
+		case OPT_HELP:
+			SHOW_HELP();
+			goto end;
+		case OPT_LIST_OPTIONS:
+			list_cmd_options(stdout, long_options);
+			goto end;
+		default:
+			ret = CMD_UNDEFINED;
+			goto end;
+		}
+	}
+
+	if (lttng_opt_mi) {
+		ret = print_mi();
+	} else {
+		MSG("lttng version " VERSION " - " VERSION_NAME "%s",
+			GIT_VERSION[0] == '\0' ? "" : " - " GIT_VERSION);
+		MSG("\n" VERSION_DESCRIPTION "\n");
+		MSG("Web site: https://lttng.org");
+		MSG("\n%s", lttng_license);
+		if (EXTRA_VERSION_NAME[0] != '\0') {
+			MSG("\nExtra version name: " EXTRA_VERSION_NAME);
+		}
+		if (EXTRA_VERSION_DESCRIPTION[0] != '\0') {
+			MSG("\nExtra version description:\n\t" EXTRA_VERSION_DESCRIPTION);
+		}
+		if (EXTRA_VERSION_PATCHES[0] != '\0') {
+			MSG("\nExtra version patches:\n\t" EXTRA_VERSION_PATCHES);
+		}
+	}
+
+end:
+	poptFreeContext(pc);
+	return ret;
+}