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/**
* @file cmd_clear.c
* @author Michal Vasko <mvasko@cesnet.cz>
* @author Radek Krejci <rkrejci@cesnet.cz>
* @author Adam Piecek <piecek@cesnet.cz>
* @brief 'clear' 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"
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"
" When loading a module into the context, the imported 'referenced'\n"
" modules will also be implemented. If specified a second time,\n"
" all the modules will be 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"
" -Y FILE, --yang-library-file=FILE\n"
" Parse FILE with \"ietf-yang-library\" data and use them to\n"
" create an exact YANG schema context. Searchpaths defined so far\n"
" are used, but then deleted.\n");
}
int
cmd_clear_opt(struct yl_opt *yo, const char *cmdline, char ***posv, int *posc)
{
int rc = 0, argc = 0;
int opt, opt_index;
struct option options[] = {
{"make-implemented", no_argument, NULL, 'i'},
{"yang-library", no_argument, NULL, 'y'},
{"yang-library-file", no_argument, NULL, 'Y'},
{"help", no_argument, NULL, 'h'},
{NULL, 0, NULL, 0}
};
yo->ctx_options = LY_CTX_NO_YANGLIBRARY;
if ((rc = parse_cmdline(cmdline, &argc, &yo->argv))) {
return rc;
}
while ((opt = getopt_long(argc, yo->argv, commands[CMD_CLEAR].optstring, options, &opt_index)) != -1) {
switch (opt) {
case 'i':
if (yo->ctx_options & LY_CTX_REF_IMPLEMENTED) {
yo->ctx_options &= ~LY_CTX_REF_IMPLEMENTED;
yo->ctx_options |= LY_CTX_ALL_IMPLEMENTED;
} else {
yo->ctx_options |= LY_CTX_REF_IMPLEMENTED;
}
break;
case 'y':
yo->ctx_options &= ~LY_CTX_NO_YANGLIBRARY;
break;
case 'Y':
yo->ctx_options &= ~LY_CTX_NO_YANGLIBRARY;
yo->yang_lib_file = optarg;
if (!yo->yang_lib_file) {
YLMSG_E("Memory allocation error.");
return 1;
}
break;
case 'h':
cmd_clear_help();
return 1;
default:
YLMSG_E("Unknown option.");
return 1;
}
}
*posv = &yo->argv[optind];
*posc = argc - optind;
return rc;
}
int
cmd_clear_dep(struct yl_opt *yo, int posc)
{
(void) yo;
if (posc) {
YLMSG_E("No positional arguments are allowed.");
return 1;
}
return 0;
}
/**
* @brief Convert searchpaths into single string.
*
* @param[in] ctx Context with searchpaths.
* @param[out] searchpaths Collection of paths in the single string. Paths are delimited by colon ":"
* (on Windows, used semicolon ";" instead).
* @return LY_ERR value.
*/
static LY_ERR
searchpaths_to_str(const struct ly_ctx *ctx, char **searchpaths)
{
uint32_t i;
int rc = 0;
const char * const *dirs = ly_ctx_get_searchdirs(ctx);
for (i = 0; dirs[i]; ++i) {
rc = searchpath_strcat(searchpaths, dirs[i]);
if (!rc) {
break;
}
}
return rc;
}
int
cmd_clear_exec(struct ly_ctx **ctx, struct yl_opt *yo, const char *posv)
{
(void) posv;
struct ly_ctx *ctx_new = NULL;
if (yo->yang_lib_file) {
if (searchpaths_to_str(*ctx, &yo->searchpaths)) {
YLMSG_E("Storing searchpaths failed.");
return 1;
}
if (ly_ctx_new_ylpath(yo->searchpaths, yo->yang_lib_file, LYD_UNKNOWN, yo->ctx_options, &ctx_new)) {
YLMSG_E("Unable to create libyang context with yang-library data.");
return 1;
}
} else {
if (ly_ctx_new(NULL, yo->ctx_options, &ctx_new)) {
YLMSG_W("Failed to create context.");
return 1;
}
}
/* Global variables in commands are also deleted. */
cmd_free();
ly_ctx_destroy(*ctx);
*ctx = ctx_new;
return 0;
}
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