yanglint FEATURE initial version of yanglint(1)
Source codes are mostly taken from libyang 1.0 and slightly modified for
libyang 2.0. A lot of functionality is still missing since it is not yet
provided by libyang 2.0
diff --git a/tools/lint/configuration.c b/tools/lint/configuration.c
new file mode 100644
index 0000000..095d2d0
--- /dev/null
+++ b/tools/lint/configuration.c
@@ -0,0 +1,121 @@
+/**
+ * @file configuration.c
+ * @author Michal Vasko <mvasko@cesnet.cz>
+ * @brief yanglint configuration
+ *
+ * Copyright (c) 2017 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
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <pwd.h>
+
+#include "configuration.h"
+#include "./linenoise/linenoise.h"
+
+/* Yanglint home (appended to ~/) */
+#define YL_DIR ".yanglint"
+
+char *
+get_yanglint_dir(void)
+{
+ int ret;
+ struct passwd *pw;
+ char *user_home, *yl_dir;
+
+ if (!(pw = getpwuid(getuid()))) {
+ fprintf(stderr, "Determining home directory failed (%s).\n", strerror(errno));
+ return NULL;
+ }
+ user_home = pw->pw_dir;
+
+ yl_dir = malloc(strlen(user_home) + 1 + strlen(YL_DIR) + 1);
+ if (!yl_dir) {
+ fprintf(stderr, "Memory allocation failed (%s).\n", strerror(errno));
+ return NULL;
+ }
+ sprintf(yl_dir, "%s/%s", user_home, YL_DIR);
+
+ ret = access(yl_dir, R_OK | X_OK);
+ if (ret == -1) {
+ if (errno == ENOENT) {
+ /* directory does not exist */
+ fprintf(stdout, "Configuration directory \"%s\" does not exist, creating it.\n", yl_dir);
+ if (mkdir(yl_dir, 00700)) {
+ fprintf(stderr, "Configuration directory \"%s\" cannot be created (%s).\n", yl_dir, strerror(errno));
+ free(yl_dir);
+ return NULL;
+ }
+ } else {
+ fprintf(stderr, "Configuration directory \"%s\" exists but cannot be accessed (%s).\n", yl_dir, strerror(errno));
+ free(yl_dir);
+ return NULL;
+ }
+ }
+
+ return yl_dir;
+}
+
+void
+load_config(void)
+{
+ char *yl_dir, *history_file;
+ if ((yl_dir = get_yanglint_dir()) == NULL) {
+ return;
+ }
+
+ history_file = malloc(strlen(yl_dir) + 9);
+ if (!history_file) {
+ fprintf(stderr, "Memory allocation failed (%s).\n", strerror(errno));
+ free(yl_dir);
+ return;
+ }
+
+ sprintf(history_file, "%s/history", yl_dir);
+ if (access(history_file, F_OK) && (errno == ENOENT)) {
+ fprintf(stdout, "No saved history.\n");
+ } else if (linenoiseHistoryLoad(history_file)) {
+ fprintf(stderr, "Failed to load history.\n");
+ }
+
+ free(history_file);
+ free(yl_dir);
+}
+
+void
+store_config(void)
+{
+ char *yl_dir, *history_file;
+
+ if ((yl_dir = get_yanglint_dir()) == NULL) {
+ return;
+ }
+
+ history_file = malloc(strlen(yl_dir) + 9);
+ if (!history_file) {
+ fprintf(stderr, "Memory allocation failed (%s).\n", strerror(errno));
+ free(yl_dir);
+ return;
+ }
+
+ sprintf(history_file, "%s/history", yl_dir);
+ if (linenoiseHistorySave(history_file)) {
+ fprintf(stderr, "Failed to save history.\n");
+ }
+
+ free(history_file);
+ free(yl_dir);
+}