1 files changed, 99 insertions, 0 deletions
diff --git a/tools/lint/cmd_clear.c b/tools/lint/cmd_clear.c
new file mode 100644
index 0000000..5eed6ff
--- /dev/null
+++ b/tools/lint/cmd_clear.c
@@ -0,0 +1,99 @@
+/**
+ * @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 [-i] [-y]\n"
+            "                  Replace the current context with an empty one, searchpaths\n"
+            "                  are not kept.\n\n"
+            "  -i, --make-implemented\n"
+            "                Make the imported modules \"referenced\" from any loaded\n"
+            "                module also implemented. If specified a second time, all the\n"
+            "                modules are set implemented.\n"
+            "  -y, --yang-library\n"
+            "                  Load and implement internal \"ietf-yang-library\" YANG module.\n"
+            "                  Note that this module includes definitions of mandatory state\n"
+            "                  data that can result in unexpected data validation errors.\n");
+#if 0
+    "                  If <yang-library-data> path specified, load the modules\n"
+    "                  according to the provided yang library data.\n"
+#endif
+}
+
+void
+cmd_clear(struct ly_ctx **ctx, const char *cmdline)
+{
+    int argc = 0;
+    char **argv = NULL;
+    int opt, opt_index;
+    struct option options[] = {
+        {"make-implemented", no_argument, NULL, 'i'},
+        {"yang-library",     no_argument, NULL, 'y'},
+        {"help",             no_argument, NULL, 'h'},
+        {NULL, 0, NULL, 0}
+    };
+    uint16_t options_ctx = LY_CTX_NO_YANGLIBRARY;
+    struct ly_ctx *ctx_new;
+
+    if (parse_cmdline(cmdline, &argc, &argv)) {
+        goto cleanup;
+    }
+
+    while ((opt = getopt_long(argc, argv, "iyh", options, &opt_index)) != -1) {
+        switch (opt) {
+        case 'i':
+            if (options_ctx & LY_CTX_REF_IMPLEMENTED) {
+                options_ctx &= ~LY_CTX_REF_IMPLEMENTED;
+                options_ctx |= LY_CTX_ALL_IMPLEMENTED;
+            } else {
+                options_ctx |= LY_CTX_REF_IMPLEMENTED;
+            }
+            break;
+        case 'y':
+            options_ctx &= ~LY_CTX_NO_YANGLIBRARY;
+            break;
+        case 'h':
+            cmd_clear_help();
+            goto cleanup;
+        default:
+            YLMSG_E("Unknown option.\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);
+    *ctx = ctx_new;
+
+cleanup:
+    free_cmdline(argv);
+}