1 files changed, 131 insertions, 0 deletions
diff --git a/tools/lint/cmd_feature.c b/tools/lint/cmd_feature.c
new file mode 100644
index 0000000..96d55c1
--- /dev/null
+++ b/tools/lint/cmd_feature.c
@@ -0,0 +1,131 @@
+/**
+ * @file cmd_feature.c
+ * @author Michal Vasko <mvasko@cesnet.cz>
+ * @author Adam Piecek <piecek@cesnet.cz>
+ * @brief 'feature' command of the libyang's yanglint tool.
+ *
+ * Copyright (c) 2015-2023 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"
+#include "yl_opt.h"
+#include "yl_schema_features.h"
+
+void
+cmd_feature_help(void)
+{
+    printf("Usage: feature [-f] <module> [<module>]*\n"
+            "       feature -a [-f]\n"
+            "                  Print features of all the modules with state of each one.\n\n"
+            "  -f <module1, module2, ...>, --feature-param <module1, module2, ...>\n"
+            "                  Generate features parameter for the command \"add\" \n"
+            "                  in the form of -F <module-name>:<features>\n"
+            "  -a, --all \n"
+            "                  Print features of all implemented modules.\n");
+}
+
+int
+cmd_feature_opt(struct yl_opt *yo, const char *cmdline, char ***posv, int *posc)
+{
+    int rc = 0, argc = 0;
+    int opt, opt_index;
+    struct option options[] = {
+        {"help", no_argument, NULL, 'h'},
+        {"all", no_argument, NULL, 'a'},
+        {"feature-param", no_argument, NULL, 'f'},
+        {NULL, 0, NULL, 0}
+    };
+
+    if ((rc = parse_cmdline(cmdline, &argc, &yo->argv))) {
+        return rc;
+    }
+
+    while ((opt = getopt_long(argc, yo->argv, commands[CMD_FEATURE].optstring, options, &opt_index)) != -1) {
+        switch (opt) {
+        case 'h':
+            cmd_feature_help();
+            return 1;
+        case 'a':
+            yo->feature_print_all = 1;
+            break;
+        case 'f':
+            yo->feature_param_format = 1;
+            break;
+        default:
+            YLMSG_E("Unknown option.");
+            return 1;
+        }
+    }
+
+    *posv = &yo->argv[optind];
+    *posc = argc - optind;
+
+    return 0;
+}
+
+int
+cmd_feature_dep(struct yl_opt *yo, int posc)
+{
+    if (ly_out_new_file(stdout, &yo->out)) {
+        YLMSG_E("Unable to print to the standard output.");
+        return 1;
+    }
+    yo->out_stdout = 1;
+
+    if (yo->interactive && !yo->feature_print_all && !posc) {
+        YLMSG_E("Missing modules to print.");
+        return 1;
+    }
+
+    return 0;
+}
+
+int
+cmd_feature_exec(struct ly_ctx **ctx, struct yl_opt *yo, const char *posv)
+{
+    const struct lys_module *mod;
+
+    if (yo->feature_print_all) {
+        print_all_features(yo->out, *ctx, yo->feature_param_format);
+        return 0;
+    }
+
+    mod = ly_ctx_get_module_latest(*ctx, posv);
+    if (!mod) {
+        YLMSG_E("Module \"%s\" not found.", posv);
+        return 1;
+    }
+
+    if (yo->feature_param_format) {
+        print_feature_param(yo->out, mod);
+    } else {
+        print_features(yo->out, mod);
+    }
+
+    return 0;
+}
+
+int
+cmd_feature_fin(struct ly_ctx *ctx, struct yl_opt *yo)
+{
+    (void) ctx;
+
+    ly_print(yo->out, "\n");
+    return 0;
+}