yanglint REFACTOR reflect changes in libyang 2.0 in yanglint
diff --git a/tools/lint/cmd_clear.c b/tools/lint/cmd_clear.c
new file mode 100644
index 0000000..5cece3a
--- /dev/null
+++ b/tools/lint/cmd_clear.c
@@ -0,0 +1,91 @@
+/**
+ * @file cmd_clear.c
+ * @author Michal Vasko <mvasko@cesnet.cz>
+ * @author Radek Krejci <rkrejci@cesnet.cz>
+ * @brief 'clear' command of the libyang's yanglint tool.
+ *
+ * Copyright (c) 2015-2020 CESNET, z.s.p.o.
+ *
+ * This source code is licensed under BSD 3-Clause License (the "License").
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ */
+
+#define _GNU_SOURCE
+
+#include "cmd.h"
+
+#include <getopt.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include "libyang.h"
+
+#include "common.h"
+
+void
+cmd_clear_help(void)
+{
+ printf("Usage: clear [<yang-library-data> | --external]\n"
+ " Replace the current context with an empty one, searchpaths\n"
+ " are not kept.\n"
+ " If <yang-library-data> path specified, load the modules\n"
+ " according to the provided yang library data.\n"
+ " -e, --external-yl\n"
+ " When creating the new context, do not load the internal\n"
+ " ietf-yang-library and let user to load ietf-yang-library from\n"
+ " file. Note, that until a compatible ietf-yang-library loaded,\n"
+ " the 'list' command does not work.\n");
+}
+
+void
+cmd_clear(struct ly_ctx **ctx, const char *cmdline)
+{
+ int argc = 0;
+ char **argv = NULL;
+ int opt, opt_index;
+ struct option options[] = {
+ {"external-yl", no_argument, NULL, 'e'},
+ {"help", no_argument, NULL, 'h'},
+ {NULL, 0, NULL, 0}
+ };
+ uint16_t options_ctx = 0;
+ struct ly_ctx *ctx_new;
+
+ if (parse_cmdline(cmdline, &argc, &argv)) {
+ goto cleanup;
+ }
+
+ while ((opt = getopt_long(argc, argv, "eh", options, &opt_index)) != -1) {
+ switch (opt) {
+ case 'e':
+ options_ctx |= LY_CTX_NO_YANGLIBRARY;
+ break;
+ case 'h':
+ cmd_clear_help();
+ goto cleanup;
+ default:
+ YLMSG_E("Unknown option.\n");
+ goto cleanup;
+ }
+ }
+
+ /* TODO ietf-yang-library support */
+ if (argc != optind) {
+ YLMSG_E("Creating context following the ietf-yang-library data is not yet supported.\n");
+ goto cleanup;
+ }
+
+ if (ly_ctx_new(NULL, options_ctx, &ctx_new)) {
+ YLMSG_W("Failed to create context.\n");
+ goto cleanup;
+ }
+
+ ly_ctx_destroy(*ctx, NULL);
+ *ctx = ctx_new;
+
+cleanup:
+ free_cmdline(argv);
+}