Adding upstream version 3.1.0+dfsg.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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569 changed files with 205393 additions and 0 deletions
299
tools/lint/cmd_print.c
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299
tools/lint/cmd_print.c
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/**
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* @file cmd_print.c
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* @author Michal Vasko <mvasko@cesnet.cz>
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* @author Radek Krejci <rkrejci@cesnet.cz>
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* @author Adam Piecek <piecek@cesnet.cz>
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* @brief 'print' command of the libyang's yanglint tool.
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*
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* Copyright (c) 2015-2023 CESNET, z.s.p.o.
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*
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* This source code is licensed under BSD 3-Clause License (the "License").
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*/
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#define _GNU_SOURCE
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#include "cmd.h"
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#include <errno.h>
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#include <getopt.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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#include "libyang.h"
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#include "common.h"
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#include "yl_opt.h"
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void
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cmd_print_help(void)
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{
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printf("Usage: print [-f (yang | yin | tree [-q -P PATH -L LINE_LENGTH ] | info [-q -P PATH])]\n"
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" [-o OUTFILE] [<module-name1>[@revision]] ...\n"
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" Print a schema module. The <module-name> is not required\n"
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" only in case the -P option is specified. For yang, yin and tree\n"
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" formats, a submodule can also be printed.\n\n"
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" -f FORMAT, --format=FORMAT\n"
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" Print the module in the specified FORMAT. If format not\n"
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" specified, the 'tree' format is used.\n"
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" -L LINE_LENGTH, --tree-line-length=LINE_LENGTH\n"
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" The limit of the maximum line length on which the 'tree'\n"
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" format will try to be printed.\n"
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" -P PATH, --schema-node=PATH\n"
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" Print only the specified subtree of the schema.\n"
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" The PATH is the XPath subset mentioned in documentation as\n"
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" the Path format. The option can be combined with --single-node\n"
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" option to print information only about the specified node.\n"
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" -q, --single-node\n"
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" Supplement to the --schema-node option to print information\n"
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" only about a single node specified as PATH argument.\n"
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" -o OUTFILE, --output=OUTFILE\n"
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" Write the output to OUTFILE instead of stdout.\n");
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}
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int
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cmd_print_opt(struct yl_opt *yo, const char *cmdline, char ***posv, int *posc)
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{
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int rc = 0, argc = 0;
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int opt, opt_index;
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struct option options[] = {
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{"format", required_argument, NULL, 'f'},
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{"help", no_argument, NULL, 'h'},
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{"tree-line-length", required_argument, NULL, 'L'},
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{"output", required_argument, NULL, 'o'},
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{"schema-node", required_argument, NULL, 'P'},
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{"single-node", no_argument, NULL, 'q'},
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{NULL, 0, NULL, 0}
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};
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yo->schema_out_format = LYS_OUT_TREE;
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if ((rc = parse_cmdline(cmdline, &argc, &yo->argv))) {
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return rc;
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}
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while ((opt = getopt_long(argc, yo->argv, commands[CMD_PRINT].optstring, options, &opt_index)) != -1) {
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switch (opt) {
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case 'o': /* --output */
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if (yo->out) {
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YLMSG_E("Only a single output can be specified.");
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return 1;
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} else {
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if (ly_out_new_filepath(optarg, &yo->out)) {
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YLMSG_E("Unable open output file %s (%s).", optarg, strerror(errno));
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return 1;
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}
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}
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break;
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case 'f': /* --format */
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if (yl_opt_update_schema_out_format(optarg, yo)) {
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cmd_print_help();
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return 1;
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}
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break;
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case 'L': /* --tree-line-length */
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yo->line_length = atoi(optarg);
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break;
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case 'P': /* --schema-node */
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yo->schema_node_path = optarg;
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break;
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case 'q': /* --single-node */
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yo->schema_print_options |= LYS_PRINT_NO_SUBSTMT;
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break;
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case 'h':
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cmd_print_help();
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return 1;
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default:
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YLMSG_E("Unknown option.");
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return 1;
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}
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}
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*posv = &yo->argv[optind];
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*posc = argc - optind;
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return 0;
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}
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int
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cmd_print_dep(struct yl_opt *yo, int posc)
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{
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/* file name */
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if (yo->interactive && !posc && !yo->schema_node_path) {
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YLMSG_E("Missing the name of the module to print.");
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return 1;
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}
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if ((yo->schema_out_format != LYS_OUT_TREE) && yo->line_length) {
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YLMSG_W("--tree-line-length take effect only in case of the tree output format.");
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}
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if (!yo->out) {
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if (ly_out_new_file(stdout, &yo->out)) {
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YLMSG_E("Could not use stdout to print output.");
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}
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yo->out_stdout = 1;
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}
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if (yo->schema_out_format == LYS_OUT_TREE) {
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/* print tree from lysc_nodes */
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yo->ctx_options |= LY_CTX_SET_PRIV_PARSED;
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}
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return 0;
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}
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static LY_ERR
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print_submodule(struct ly_out *out, struct ly_ctx **ctx, char *name, char *revision, LYS_OUTFORMAT format, size_t line_length, uint32_t options)
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{
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LY_ERR erc;
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const struct lysp_submodule *submodule;
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submodule = revision ?
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ly_ctx_get_submodule(*ctx, name, revision) :
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ly_ctx_get_submodule_latest(*ctx, name);
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erc = submodule ?
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lys_print_submodule(out, submodule, format, line_length, options) :
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LY_ENOTFOUND;
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if (!erc) {
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return 0;
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} else if ((erc == LY_ENOTFOUND) && revision) {
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YLMSG_E("No submodule \"%s\" found.", name);
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} else {
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YLMSG_E("Unable to print submodule %s.", name);
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}
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return erc;
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}
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static LY_ERR
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print_module(struct ly_out *out, struct ly_ctx **ctx, char *name, char *revision, LYS_OUTFORMAT format, size_t line_length, uint32_t options)
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{
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LY_ERR erc;
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struct lys_module *module;
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module = revision ?
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ly_ctx_get_module(*ctx, name, revision) :
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ly_ctx_get_module_latest(*ctx, name);
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erc = module ?
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lys_print_module(out, module, format, line_length, options) :
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LY_ENOTFOUND;
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if (!erc) {
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return 0;
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} else if ((erc == LY_ENOTFOUND) && revision) {
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YLMSG_E("No module \"%s\" found.", name);
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} else {
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YLMSG_E("Unable to print module %s.", name);
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}
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return erc;
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}
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static int
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cmd_print_module(const char *posv, struct ly_out *out, struct ly_ctx **ctx, LYS_OUTFORMAT format,
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size_t line_length, uint32_t options)
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{
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LY_ERR erc;
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char *name = NULL, *revision;
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name = strdup(posv);
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/* get revision */
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revision = strchr(name, '@');
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if (revision) {
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revision[0] = '\0';
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++revision;
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}
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erc = print_module(out, ctx, name, revision, format, line_length, options);
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if (erc == LY_ENOTFOUND) {
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erc = print_submodule(out, ctx, name, revision, format, line_length, options);
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}
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free(name);
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return erc;
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}
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/**
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* @brief Print schema node path.
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*
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* @param[in] ctx Context for libyang.
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* @param[in] yo Context for yanglint.
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* @return 0 on success.
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*/
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static int
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print_node(struct ly_ctx *ctx, struct yl_opt *yo)
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{
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const struct lysc_node *node;
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uint32_t temp_lo = 0;
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if (yo->interactive) {
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/* Use the same approach as for completion. */
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node = find_schema_path(ctx, yo->schema_node_path);
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if (!node) {
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YLMSG_E("The requested schema node \"%s\" does not exists.", yo->schema_node_path);
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return 1;
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}
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} else {
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/* turn off logging so that the message is not repeated */
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ly_temp_log_options(&temp_lo);
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/* search operation input */
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node = lys_find_path(ctx, NULL, yo->schema_node_path, 0);
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if (!node) {
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/* restore logging so an error may be displayed */
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ly_temp_log_options(NULL);
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/* search operation output */
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node = lys_find_path(ctx, NULL, yo->schema_node_path, 1);
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if (!node) {
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YLMSG_E("Invalid schema path.");
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return 1;
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}
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}
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}
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if (lys_print_node(yo->out, node, yo->schema_out_format, yo->line_length, yo->schema_print_options)) {
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YLMSG_E("Unable to print schema node %s.", yo->schema_node_path);
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return 1;
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}
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return 0;
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}
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int
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cmd_print_exec(struct ly_ctx **ctx, struct yl_opt *yo, const char *posv)
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{
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int rc = 0;
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if (yo->ctx_options & LY_CTX_SET_PRIV_PARSED) {
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/* print tree from lysc_nodes */
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ly_ctx_set_options(*ctx, LY_CTX_SET_PRIV_PARSED);
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}
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if (yo->schema_node_path) {
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rc = print_node(*ctx, yo);
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} else if (!yo->interactive && yo->submodule) {
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rc = print_submodule(yo->out, ctx, yo->submodule, NULL, yo->schema_out_format, yo->line_length,
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yo->schema_print_options);
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} else {
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rc = cmd_print_module(posv, yo->out, ctx, yo->schema_out_format, yo->line_length, yo->schema_print_options);
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if (!yo->last_one && (yo->schema_out_format == LYS_OUT_TREE)) {
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ly_print(yo->out, "\n");
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}
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}
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return rc;
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}
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