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rename `babeltrace.trace-info` to `babeltrace.trace-infos`, `streams` to `stream...
[babeltrace.git] / src / cli / babeltrace2-cfg-cli-args.c
1 /*
2 * Babeltrace trace converter - parameter parsing
3 *
4 * Copyright 2016 Philippe Proulx <pproulx@efficios.com>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
25 #define BT_LOG_TAG "CLI/CFG-CLI-ARGS"
26 #include "logging.h"
27
28 #include <errno.h>
29 #include <stdlib.h>
30 #include <string.h>
31 #include "common/assert.h"
32 #include <stdio.h>
33 #include <stdbool.h>
34 #include <inttypes.h>
35 #include <babeltrace2/babeltrace.h>
36 #include "common/common.h"
37 #include <glib.h>
38 #include <sys/types.h>
39 #include "argpar/argpar.h"
40 #include "babeltrace2-cfg.h"
41 #include "babeltrace2-cfg-cli-args.h"
42 #include "babeltrace2-cfg-cli-args-connect.h"
43 #include "babeltrace2-cfg-cli-params-arg.h"
44 #include "babeltrace2-log-level.h"
45 #include "babeltrace2-plugins.h"
46 #include "babeltrace2-query.h"
47 #include "autodisc/autodisc.h"
48 #include "common/version.h"
49
50 /* INI-style parsing FSM states */
51 enum ini_parsing_fsm_state {
52 /* Expect a map key (identifier) */
53 INI_EXPECT_MAP_KEY,
54
55 /* Expect an equal character ('=') */
56 INI_EXPECT_EQUAL,
57
58 /* Expect a value */
59 INI_EXPECT_VALUE,
60
61 /* Expect a comma character (',') */
62 INI_EXPECT_COMMA,
63 };
64
65 /* INI-style parsing state variables */
66 struct ini_parsing_state {
67 /* Lexical scanner (owned by this) */
68 GScanner *scanner;
69
70 /* Output map value object being filled (owned by this) */
71 bt_value *params;
72
73 /* Next expected FSM state */
74 enum ini_parsing_fsm_state expecting;
75
76 /* Last decoded map key (owned by this) */
77 char *last_map_key;
78
79 /* Complete INI-style string to parse (not owned by this) */
80 const char *arg;
81
82 /* Error buffer (not owned by this) */
83 GString *ini_error;
84 };
85
86 /* Offset option with "is set" boolean */
87 struct offset_opt {
88 int64_t value;
89 bool is_set;
90 };
91
92 /* Legacy "ctf"/"lttng-live" format options */
93 struct ctf_legacy_opts {
94 struct offset_opt offset_s;
95 struct offset_opt offset_ns;
96 bool stream_intersection;
97 };
98
99 /* Legacy "text" format options */
100 struct text_legacy_opts {
101 /*
102 * output, dbg_info_dir, dbg_info_target_prefix, names,
103 * and fields are owned by this.
104 */
105 GString *output;
106 GString *dbg_info_dir;
107 GString *dbg_info_target_prefix;
108 const bt_value *names;
109 const bt_value *fields;
110
111 /* Flags */
112 bool no_delta;
113 bool clock_cycles;
114 bool clock_seconds;
115 bool clock_date;
116 bool clock_gmt;
117 bool dbg_info_full_path;
118 bool verbose;
119 };
120
121 /* Legacy input format format */
122 enum legacy_input_format {
123 LEGACY_INPUT_FORMAT_NONE = 0,
124 LEGACY_INPUT_FORMAT_CTF,
125 LEGACY_INPUT_FORMAT_LTTNG_LIVE,
126 };
127
128 /* Legacy output format format */
129 enum legacy_output_format {
130 LEGACY_OUTPUT_FORMAT_NONE = 0,
131 LEGACY_OUTPUT_FORMAT_TEXT,
132 LEGACY_OUTPUT_FORMAT_DUMMY,
133 };
134
135 #define BT_CLI_LOGE_APPEND_CAUSE_OOM() BT_CLI_LOGE_APPEND_CAUSE("Out of memory.")
136
137 /*
138 * Returns the plugin name, component class name, component class type,
139 * and component name from a command-line --component option's argument.
140 * arg must have the following format:
141 *
142 * [NAME:]TYPE.PLUGIN.CLS
143 *
144 * where NAME is the optional component name, TYPE is either `source`,
145 * `filter`, or `sink`, PLUGIN is the plugin name, and CLS is the
146 * component class name.
147 *
148 * On success, both *plugin and *component are not NULL. *plugin
149 * and *comp_cls are owned by the caller. On success, *name can be NULL
150 * if no component class name was found, and *comp_cls_type is set.
151 */
152 static
153 void plugin_comp_cls_names(const char *arg, char **name, char **plugin,
154 char **comp_cls, bt_component_class_type *comp_cls_type)
155 {
156 const char *at = arg;
157 GString *gs_name = NULL;
158 GString *gs_comp_cls_type = NULL;
159 GString *gs_plugin = NULL;
160 GString *gs_comp_cls = NULL;
161 size_t end_pos;
162
163 BT_ASSERT(arg);
164 BT_ASSERT(plugin);
165 BT_ASSERT(comp_cls);
166 BT_ASSERT(comp_cls_type);
167
168 if (!bt_common_string_is_printable(arg)) {
169 BT_CLI_LOGE_APPEND_CAUSE("Argument contains a non-printable character.");
170 goto error;
171 }
172
173 /* Parse the component name */
174 gs_name = bt_common_string_until(at, ".:\\", ":", &end_pos);
175 if (!gs_name) {
176 goto error;
177 }
178
179 if (arg[end_pos] == ':') {
180 at += end_pos + 1;
181 } else {
182 /* No name */
183 g_string_assign(gs_name, "");
184 }
185
186 /* Parse the component class type */
187 gs_comp_cls_type = bt_common_string_until(at, ".:\\", ".", &end_pos);
188 if (!gs_comp_cls_type || at[end_pos] == '\0') {
189 BT_CLI_LOGE_APPEND_CAUSE("Missing component class type (`source`, `filter`, or `sink`).");
190 goto error;
191 }
192
193 if (strcmp(gs_comp_cls_type->str, "source") == 0 ||
194 strcmp(gs_comp_cls_type->str, "src") == 0) {
195 *comp_cls_type = BT_COMPONENT_CLASS_TYPE_SOURCE;
196 } else if (strcmp(gs_comp_cls_type->str, "filter") == 0 ||
197 strcmp(gs_comp_cls_type->str, "flt") == 0) {
198 *comp_cls_type = BT_COMPONENT_CLASS_TYPE_FILTER;
199 } else if (strcmp(gs_comp_cls_type->str, "sink") == 0) {
200 *comp_cls_type = BT_COMPONENT_CLASS_TYPE_SINK;
201 } else {
202 BT_CLI_LOGE_APPEND_CAUSE("Unknown component class type: `%s`.",
203 gs_comp_cls_type->str);
204 goto error;
205 }
206
207 at += end_pos + 1;
208
209 /* Parse the plugin name */
210 gs_plugin = bt_common_string_until(at, ".:\\", ".", &end_pos);
211 if (!gs_plugin || gs_plugin->len == 0 || at[end_pos] == '\0') {
212 BT_CLI_LOGE_APPEND_CAUSE("Missing plugin or component class name.");
213 goto error;
214 }
215
216 at += end_pos + 1;
217
218 /* Parse the component class name */
219 gs_comp_cls = bt_common_string_until(at, ".:\\", ".", &end_pos);
220 if (!gs_comp_cls || gs_comp_cls->len == 0) {
221 BT_CLI_LOGE_APPEND_CAUSE("Missing component class name.");
222 goto error;
223 }
224
225 if (at[end_pos] != '\0') {
226 /* Found a non-escaped `.` */
227 goto error;
228 }
229
230 if (name) {
231 if (gs_name->len == 0) {
232 *name = NULL;
233 g_string_free(gs_name, TRUE);
234 } else {
235 *name = gs_name->str;
236 g_string_free(gs_name, FALSE);
237 }
238 } else {
239 g_string_free(gs_name, TRUE);
240 }
241
242 *plugin = gs_plugin->str;
243 *comp_cls = gs_comp_cls->str;
244 g_string_free(gs_plugin, FALSE);
245 g_string_free(gs_comp_cls, FALSE);
246 gs_name = NULL;
247 gs_plugin = NULL;
248 gs_comp_cls = NULL;
249 goto end;
250
251 error:
252 if (name) {
253 *name = NULL;
254 }
255
256 *plugin = NULL;
257 *comp_cls = NULL;
258
259 end:
260 if (gs_name) {
261 g_string_free(gs_name, TRUE);
262 }
263
264 if (gs_plugin) {
265 g_string_free(gs_plugin, TRUE);
266 }
267
268 if (gs_comp_cls) {
269 g_string_free(gs_comp_cls, TRUE);
270 }
271
272 if (gs_comp_cls_type) {
273 g_string_free(gs_comp_cls_type, TRUE);
274 }
275
276 return;
277 }
278
279 /*
280 * Prints the Babeltrace version.
281 */
282 static
283 void print_version(void)
284 {
285 if (GIT_VERSION[0] == '\0') {
286 puts("Babeltrace " VERSION);
287 } else {
288 puts("Babeltrace " VERSION " - " GIT_VERSION);
289 }
290 }
291
292 /*
293 * Destroys a component configuration.
294 */
295 static
296 void bt_config_component_destroy(bt_object *obj)
297 {
298 struct bt_config_component *bt_config_component =
299 container_of(obj, struct bt_config_component, base);
300
301 if (!obj) {
302 goto end;
303 }
304
305 if (bt_config_component->plugin_name) {
306 g_string_free(bt_config_component->plugin_name, TRUE);
307 }
308
309 if (bt_config_component->comp_cls_name) {
310 g_string_free(bt_config_component->comp_cls_name, TRUE);
311 }
312
313 if (bt_config_component->instance_name) {
314 g_string_free(bt_config_component->instance_name, TRUE);
315 }
316
317 BT_VALUE_PUT_REF_AND_RESET(bt_config_component->params);
318 g_free(bt_config_component);
319
320 end:
321 return;
322 }
323
324 /*
325 * Creates a component configuration using the given plugin name and
326 * component name. `plugin_name` and `comp_cls_name` are copied (belong
327 * to the return value).
328 *
329 * Return value is owned by the caller.
330 */
331 static
332 struct bt_config_component *bt_config_component_create(
333 bt_component_class_type type,
334 const char *plugin_name, const char *comp_cls_name,
335 int init_log_level)
336 {
337 struct bt_config_component *cfg_component = NULL;
338
339 cfg_component = g_new0(struct bt_config_component, 1);
340 if (!cfg_component) {
341 BT_CLI_LOGE_APPEND_CAUSE_OOM();
342 goto error;
343 }
344
345 bt_object_init_shared(&cfg_component->base,
346 bt_config_component_destroy);
347 cfg_component->type = type;
348 cfg_component->plugin_name = g_string_new(plugin_name);
349 if (!cfg_component->plugin_name) {
350 BT_CLI_LOGE_APPEND_CAUSE_OOM();
351 goto error;
352 }
353
354 cfg_component->comp_cls_name = g_string_new(comp_cls_name);
355 if (!cfg_component->comp_cls_name) {
356 BT_CLI_LOGE_APPEND_CAUSE_OOM();
357 goto error;
358 }
359
360 cfg_component->instance_name = g_string_new(NULL);
361 if (!cfg_component->instance_name) {
362 BT_CLI_LOGE_APPEND_CAUSE_OOM();
363 goto error;
364 }
365
366 cfg_component->log_level = init_log_level;
367
368 /* Start with empty parameters */
369 cfg_component->params = bt_value_map_create();
370 if (!cfg_component->params) {
371 BT_CLI_LOGE_APPEND_CAUSE_OOM();
372 goto error;
373 }
374
375 goto end;
376
377 error:
378 BT_OBJECT_PUT_REF_AND_RESET(cfg_component);
379
380 end:
381 return cfg_component;
382 }
383
384 /*
385 * Creates a component configuration from a command-line --component
386 * option's argument.
387 */
388 static
389 struct bt_config_component *bt_config_component_from_arg(const char *arg,
390 int init_log_level)
391 {
392 struct bt_config_component *cfg_comp = NULL;
393 char *name = NULL;
394 char *plugin_name = NULL;
395 char *comp_cls_name = NULL;
396 bt_component_class_type type;
397
398 plugin_comp_cls_names(arg, &name, &plugin_name, &comp_cls_name, &type);
399 if (!plugin_name || !comp_cls_name) {
400 goto error;
401 }
402
403 cfg_comp = bt_config_component_create(type, plugin_name, comp_cls_name,
404 init_log_level);
405 if (!cfg_comp) {
406 goto error;
407 }
408
409 if (name) {
410 g_string_assign(cfg_comp->instance_name, name);
411 }
412
413 goto end;
414
415 error:
416 BT_OBJECT_PUT_REF_AND_RESET(cfg_comp);
417
418 end:
419 g_free(name);
420 g_free(plugin_name);
421 g_free(comp_cls_name);
422 return cfg_comp;
423 }
424
425 /*
426 * Destroys a configuration.
427 */
428 static
429 void bt_config_destroy(bt_object *obj)
430 {
431 struct bt_config *cfg =
432 container_of(obj, struct bt_config, base);
433
434 if (!obj) {
435 goto end;
436 }
437
438 BT_VALUE_PUT_REF_AND_RESET(cfg->plugin_paths);
439
440 switch (cfg->command) {
441 case BT_CONFIG_COMMAND_RUN:
442 if (cfg->cmd_data.run.sources) {
443 g_ptr_array_free(cfg->cmd_data.run.sources, TRUE);
444 }
445
446 if (cfg->cmd_data.run.filters) {
447 g_ptr_array_free(cfg->cmd_data.run.filters, TRUE);
448 }
449
450 if (cfg->cmd_data.run.sinks) {
451 g_ptr_array_free(cfg->cmd_data.run.sinks, TRUE);
452 }
453
454 if (cfg->cmd_data.run.connections) {
455 g_ptr_array_free(cfg->cmd_data.run.connections,
456 TRUE);
457 }
458 break;
459 case BT_CONFIG_COMMAND_LIST_PLUGINS:
460 break;
461 case BT_CONFIG_COMMAND_HELP:
462 BT_OBJECT_PUT_REF_AND_RESET(cfg->cmd_data.help.cfg_component);
463 break;
464 case BT_CONFIG_COMMAND_QUERY:
465 BT_OBJECT_PUT_REF_AND_RESET(cfg->cmd_data.query.cfg_component);
466
467 if (cfg->cmd_data.query.object) {
468 g_string_free(cfg->cmd_data.query.object, TRUE);
469 }
470 break;
471 case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
472 if (cfg->cmd_data.print_ctf_metadata.path) {
473 g_string_free(cfg->cmd_data.print_ctf_metadata.path,
474 TRUE);
475 g_string_free(
476 cfg->cmd_data.print_ctf_metadata.output_path,
477 TRUE);
478 }
479 break;
480 case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
481 if (cfg->cmd_data.print_lttng_live_sessions.url) {
482 g_string_free(
483 cfg->cmd_data.print_lttng_live_sessions.url,
484 TRUE);
485 g_string_free(
486 cfg->cmd_data.print_lttng_live_sessions.output_path,
487 TRUE);
488 }
489 break;
490 default:
491 abort();
492 }
493
494 g_free(cfg);
495
496 end:
497 return;
498 }
499
500 static
501 void destroy_glist_of_gstring(GList *list)
502 {
503 GList *at;
504
505 if (!list) {
506 return;
507 }
508
509 for (at = list; at; at = g_list_next(at)) {
510 g_string_free(at->data, TRUE);
511 }
512
513 g_list_free(list);
514 }
515
516 /*
517 * Creates a simple lexical scanner for parsing comma-delimited names
518 * and fields.
519 *
520 * Return value is owned by the caller.
521 */
522 static
523 GScanner *create_csv_identifiers_scanner(void)
524 {
525 GScanner *scanner;
526 GScannerConfig scanner_config = {
527 .cset_skip_characters = " \t\n",
528 .cset_identifier_first = G_CSET_a_2_z G_CSET_A_2_Z "_",
529 .cset_identifier_nth = G_CSET_a_2_z G_CSET_A_2_Z ":_-",
530 .case_sensitive = TRUE,
531 .cpair_comment_single = NULL,
532 .skip_comment_multi = TRUE,
533 .skip_comment_single = TRUE,
534 .scan_comment_multi = FALSE,
535 .scan_identifier = TRUE,
536 .scan_identifier_1char = TRUE,
537 .scan_identifier_NULL = FALSE,
538 .scan_symbols = FALSE,
539 .symbol_2_token = FALSE,
540 .scope_0_fallback = FALSE,
541 .scan_binary = FALSE,
542 .scan_octal = FALSE,
543 .scan_float = FALSE,
544 .scan_hex = FALSE,
545 .scan_hex_dollar = FALSE,
546 .numbers_2_int = FALSE,
547 .int_2_float = FALSE,
548 .store_int64 = FALSE,
549 .scan_string_sq = FALSE,
550 .scan_string_dq = FALSE,
551 .identifier_2_string = FALSE,
552 .char_2_token = TRUE,
553 };
554
555 scanner = g_scanner_new(&scanner_config);
556 if (!scanner) {
557 BT_CLI_LOGE_APPEND_CAUSE_OOM();
558 }
559
560 return scanner;
561 }
562
563 /*
564 * Converts a comma-delimited list of known names (--names option) to
565 * an array value object containing those names as string value objects.
566 *
567 * Return value is owned by the caller.
568 */
569 static
570 bt_value *names_from_arg(const char *arg)
571 {
572 GScanner *scanner = NULL;
573 bt_value *names = NULL;
574 bool found_all = false, found_none = false, found_item = false;
575
576 names = bt_value_array_create();
577 if (!names) {
578 BT_CLI_LOGE_APPEND_CAUSE_OOM();
579 goto error;
580 }
581
582 scanner = create_csv_identifiers_scanner();
583 if (!scanner) {
584 goto error;
585 }
586
587 g_scanner_input_text(scanner, arg, strlen(arg));
588
589 while (true) {
590 GTokenType token_type = g_scanner_get_next_token(scanner);
591
592 switch (token_type) {
593 case G_TOKEN_IDENTIFIER:
594 {
595 const char *identifier = scanner->value.v_identifier;
596
597 if (strcmp(identifier, "payload") == 0 ||
598 strcmp(identifier, "args") == 0 ||
599 strcmp(identifier, "arg") == 0) {
600 found_item = true;
601 if (bt_value_array_append_string_element(names,
602 "payload")) {
603 goto error;
604 }
605 } else if (strcmp(identifier, "context") == 0 ||
606 strcmp(identifier, "ctx") == 0) {
607 found_item = true;
608 if (bt_value_array_append_string_element(names,
609 "context")) {
610 goto error;
611 }
612 } else if (strcmp(identifier, "scope") == 0 ||
613 strcmp(identifier, "header") == 0) {
614 found_item = true;
615 if (bt_value_array_append_string_element(names,
616 identifier)) {
617 goto error;
618 }
619 } else if (strcmp(identifier, "all") == 0) {
620 found_all = true;
621 if (bt_value_array_append_string_element(names,
622 identifier)) {
623 goto error;
624 }
625 } else if (strcmp(identifier, "none") == 0) {
626 found_none = true;
627 if (bt_value_array_append_string_element(names,
628 identifier)) {
629 goto error;
630 }
631 } else {
632 BT_CLI_LOGE_APPEND_CAUSE("Unknown name: `%s`.",
633 identifier);
634 goto error;
635 }
636 break;
637 }
638 case G_TOKEN_COMMA:
639 continue;
640 case G_TOKEN_EOF:
641 goto end;
642 default:
643 goto error;
644 }
645 }
646
647 end:
648 if (found_none && found_all) {
649 BT_CLI_LOGE_APPEND_CAUSE("Only either `all` or `none` can be specified in the list given to the --names option, but not both.");
650 goto error;
651 }
652 /*
653 * Legacy behavior is to clear the defaults (show none) when at
654 * least one item is specified.
655 */
656 if (found_item && !found_none && !found_all) {
657 if (bt_value_array_append_string_element(names, "none")) {
658 goto error;
659 }
660 }
661 if (scanner) {
662 g_scanner_destroy(scanner);
663 }
664 return names;
665
666 error:
667 BT_VALUE_PUT_REF_AND_RESET(names);
668 if (scanner) {
669 g_scanner_destroy(scanner);
670 }
671 return names;
672 }
673
674 /*
675 * Converts a comma-delimited list of known fields (--fields option) to
676 * an array value object containing those fields as string
677 * value objects.
678 *
679 * Return value is owned by the caller.
680 */
681 static
682 bt_value *fields_from_arg(const char *arg)
683 {
684 GScanner *scanner = NULL;
685 bt_value *fields;
686
687 fields = bt_value_array_create();
688 if (!fields) {
689 BT_CLI_LOGE_APPEND_CAUSE_OOM();
690 goto error;
691 }
692
693 scanner = create_csv_identifiers_scanner();
694 if (!scanner) {
695 goto error;
696 }
697
698 g_scanner_input_text(scanner, arg, strlen(arg));
699
700 while (true) {
701 GTokenType token_type = g_scanner_get_next_token(scanner);
702
703 switch (token_type) {
704 case G_TOKEN_IDENTIFIER:
705 {
706 const char *identifier = scanner->value.v_identifier;
707
708 if (strcmp(identifier, "trace") == 0 ||
709 strcmp(identifier, "trace:hostname") == 0 ||
710 strcmp(identifier, "trace:domain") == 0 ||
711 strcmp(identifier, "trace:procname") == 0 ||
712 strcmp(identifier, "trace:vpid") == 0 ||
713 strcmp(identifier, "loglevel") == 0 ||
714 strcmp(identifier, "emf") == 0 ||
715 strcmp(identifier, "callsite") == 0 ||
716 strcmp(identifier, "all") == 0) {
717 if (bt_value_array_append_string_element(fields,
718 identifier)) {
719 goto error;
720 }
721 } else {
722 BT_CLI_LOGE_APPEND_CAUSE("Unknown field: `%s`.",
723 identifier);
724 goto error;
725 }
726 break;
727 }
728 case G_TOKEN_COMMA:
729 continue;
730 case G_TOKEN_EOF:
731 goto end;
732 default:
733 goto error;
734 }
735 }
736
737 goto end;
738
739 error:
740 BT_VALUE_PUT_REF_AND_RESET(fields);
741
742 end:
743 if (scanner) {
744 g_scanner_destroy(scanner);
745 }
746 return fields;
747 }
748
749 static
750 void append_param_arg(GString *params_arg, const char *key, const char *value)
751 {
752 BT_ASSERT(params_arg);
753 BT_ASSERT(key);
754 BT_ASSERT(value);
755
756 if (params_arg->len != 0) {
757 g_string_append_c(params_arg, ',');
758 }
759
760 g_string_append(params_arg, key);
761 g_string_append_c(params_arg, '=');
762 g_string_append(params_arg, value);
763 }
764
765 /*
766 * Inserts the equivalent "prefix-NAME=yes" strings into params_arg
767 * where the names are in names_array.
768 */
769 static
770 int insert_flat_params_from_array(GString *params_arg,
771 const bt_value *names_array, const char *prefix)
772 {
773 int ret = 0;
774 int i;
775 GString *tmpstr = NULL, *default_value = NULL;
776 bool default_set = false, non_default_set = false;
777
778 /*
779 * names_array may be NULL if no CLI options were specified to
780 * trigger its creation.
781 */
782 if (!names_array) {
783 goto end;
784 }
785
786 tmpstr = g_string_new(NULL);
787 if (!tmpstr) {
788 BT_CLI_LOGE_APPEND_CAUSE_OOM();
789 ret = -1;
790 goto end;
791 }
792
793 default_value = g_string_new(NULL);
794 if (!default_value) {
795 BT_CLI_LOGE_APPEND_CAUSE_OOM();
796 ret = -1;
797 goto end;
798 }
799
800 for (i = 0; i < bt_value_array_get_length(names_array); i++) {
801 const bt_value *str_obj =
802 bt_value_array_borrow_element_by_index_const(names_array,
803 i);
804 const char *suffix;
805 bool is_default = false;
806
807 if (!str_obj) {
808 BT_CLI_LOGE_APPEND_CAUSE("Unexpected error.");
809 ret = -1;
810 goto end;
811 }
812
813 suffix = bt_value_string_get(str_obj);
814
815 g_string_assign(tmpstr, prefix);
816 g_string_append(tmpstr, "-");
817
818 /* Special-case for "all" and "none". */
819 if (strcmp(suffix, "all") == 0) {
820 is_default = true;
821 g_string_assign(default_value, "show");
822 } else if (strcmp(suffix, "none") == 0) {
823 is_default = true;
824 g_string_assign(default_value, "hide");
825 }
826 if (is_default) {
827 default_set = true;
828 g_string_append(tmpstr, "default");
829 append_param_arg(params_arg, tmpstr->str,
830 default_value->str);
831 } else {
832 non_default_set = true;
833 g_string_append(tmpstr, suffix);
834 append_param_arg(params_arg, tmpstr->str, "yes");
835 }
836 }
837
838 /* Implicit field-default=hide if any non-default option is set. */
839 if (non_default_set && !default_set) {
840 g_string_assign(tmpstr, prefix);
841 g_string_append(tmpstr, "-default");
842 g_string_assign(default_value, "hide");
843 append_param_arg(params_arg, tmpstr->str, default_value->str);
844 }
845
846 end:
847 if (default_value) {
848 g_string_free(default_value, TRUE);
849 }
850
851 if (tmpstr) {
852 g_string_free(tmpstr, TRUE);
853 }
854
855 return ret;
856 }
857
858 /* argpar options */
859 enum {
860 OPT_NONE = 0,
861 OPT_BASE_PARAMS,
862 OPT_BEGIN,
863 OPT_CLOCK_CYCLES,
864 OPT_CLOCK_DATE,
865 OPT_CLOCK_FORCE_CORRELATE,
866 OPT_CLOCK_GMT,
867 OPT_CLOCK_OFFSET,
868 OPT_CLOCK_OFFSET_NS,
869 OPT_CLOCK_SECONDS,
870 OPT_COLOR,
871 OPT_COMPONENT,
872 OPT_CONNECT,
873 OPT_DEBUG,
874 OPT_DEBUG_INFO,
875 OPT_DEBUG_INFO_DIR,
876 OPT_DEBUG_INFO_FULL_PATH,
877 OPT_DEBUG_INFO_TARGET_PREFIX,
878 OPT_END,
879 OPT_FIELDS,
880 OPT_HELP,
881 OPT_INPUT_FORMAT,
882 OPT_LIST,
883 OPT_LOG_LEVEL,
884 OPT_NAMES,
885 OPT_NO_DELTA,
886 OPT_OMIT_HOME_PLUGIN_PATH,
887 OPT_OMIT_SYSTEM_PLUGIN_PATH,
888 OPT_OUTPUT,
889 OPT_OUTPUT_FORMAT,
890 OPT_PARAMS,
891 OPT_PLUGIN_PATH,
892 OPT_RESET_BASE_PARAMS,
893 OPT_RETRY_DURATION,
894 OPT_RUN_ARGS,
895 OPT_RUN_ARGS_0,
896 OPT_STREAM_INTERSECTION,
897 OPT_TIMERANGE,
898 OPT_VERBOSE,
899 OPT_VERSION,
900 };
901
902 enum bt_config_component_dest {
903 BT_CONFIG_COMPONENT_DEST_UNKNOWN = -1,
904 BT_CONFIG_COMPONENT_DEST_SOURCE,
905 BT_CONFIG_COMPONENT_DEST_FILTER,
906 BT_CONFIG_COMPONENT_DEST_SINK,
907 };
908
909 /*
910 * Adds a configuration component to the appropriate configuration
911 * array depending on the destination.
912 */
913 static
914 void add_run_cfg_comp(struct bt_config *cfg,
915 struct bt_config_component *cfg_comp,
916 enum bt_config_component_dest dest)
917 {
918 bt_object_get_ref(cfg_comp);
919
920 switch (dest) {
921 case BT_CONFIG_COMPONENT_DEST_SOURCE:
922 g_ptr_array_add(cfg->cmd_data.run.sources, cfg_comp);
923 break;
924 case BT_CONFIG_COMPONENT_DEST_FILTER:
925 g_ptr_array_add(cfg->cmd_data.run.filters, cfg_comp);
926 break;
927 case BT_CONFIG_COMPONENT_DEST_SINK:
928 g_ptr_array_add(cfg->cmd_data.run.sinks, cfg_comp);
929 break;
930 default:
931 abort();
932 }
933 }
934
935 static
936 int add_run_cfg_comp_check_name(struct bt_config *cfg,
937 struct bt_config_component *cfg_comp,
938 enum bt_config_component_dest dest,
939 bt_value *instance_names)
940 {
941 int ret = 0;
942
943 if (cfg_comp->instance_name->len == 0) {
944 BT_CLI_LOGE_APPEND_CAUSE("Found an unnamed component.");
945 ret = -1;
946 goto end;
947 }
948
949 if (bt_value_map_has_entry(instance_names,
950 cfg_comp->instance_name->str)) {
951 BT_CLI_LOGE_APPEND_CAUSE("Duplicate component instance name:\n %s",
952 cfg_comp->instance_name->str);
953 ret = -1;
954 goto end;
955 }
956
957 if (bt_value_map_insert_entry(instance_names,
958 cfg_comp->instance_name->str, bt_value_null)) {
959 BT_CLI_LOGE_APPEND_CAUSE_OOM();
960 ret = -1;
961 goto end;
962 }
963
964 add_run_cfg_comp(cfg, cfg_comp, dest);
965
966 end:
967 return ret;
968 }
969
970 static
971 int append_env_var_plugin_paths(bt_value *plugin_paths)
972 {
973 int ret = 0;
974 const char *envvar;
975
976 if (bt_common_is_setuid_setgid()) {
977 BT_LOGI_STR("Skipping non-system plugin paths for setuid/setgid binary.");
978 goto end;
979 }
980
981 envvar = getenv("BABELTRACE_PLUGIN_PATH");
982 if (!envvar) {
983 goto end;
984 }
985
986 ret = bt_config_append_plugin_paths(plugin_paths, envvar);
987
988 end:
989 if (ret) {
990 BT_CLI_LOGE_APPEND_CAUSE("Cannot append plugin paths from BABELTRACE_PLUGIN_PATH.");
991 }
992
993 return ret;
994 }
995
996 static
997 int append_home_and_system_plugin_paths(bt_value *plugin_paths,
998 bool omit_system_plugin_path, bool omit_home_plugin_path)
999 {
1000 int ret;
1001
1002 if (!omit_home_plugin_path) {
1003 if (bt_common_is_setuid_setgid()) {
1004 BT_LOGI_STR("Skipping non-system plugin paths for setuid/setgid binary.");
1005 } else {
1006 char *home_plugin_dir = bt_common_get_home_plugin_path(
1007 BT_LOG_OUTPUT_LEVEL);
1008
1009 if (home_plugin_dir) {
1010 ret = bt_config_append_plugin_paths(
1011 plugin_paths, home_plugin_dir);
1012 free(home_plugin_dir);
1013
1014 if (ret) {
1015 BT_CLI_LOGE_APPEND_CAUSE("Invalid home plugin path.");
1016 goto error;
1017 }
1018 }
1019 }
1020 }
1021
1022 if (!omit_system_plugin_path) {
1023 if (bt_config_append_plugin_paths(plugin_paths,
1024 bt_common_get_system_plugin_path())) {
1025 BT_CLI_LOGE_APPEND_CAUSE("Invalid system plugin path.");
1026 goto error;
1027 }
1028 }
1029 return 0;
1030 error:
1031 BT_CLI_LOGE_APPEND_CAUSE("Cannot append home and system plugin paths.");
1032 return -1;
1033 }
1034
1035 static
1036 struct bt_config *bt_config_base_create(enum bt_config_command command,
1037 const bt_value *plugin_paths, bool needs_plugins)
1038 {
1039 struct bt_config *cfg;
1040
1041 /* Create config */
1042 cfg = g_new0(struct bt_config, 1);
1043 if (!cfg) {
1044 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1045 goto error;
1046 }
1047
1048 bt_object_init_shared(&cfg->base, bt_config_destroy);
1049 cfg->command = command;
1050 cfg->command_needs_plugins = needs_plugins;
1051
1052 if (plugin_paths) {
1053 bt_value *plugin_paths_copy;
1054
1055 (void) bt_value_copy(plugin_paths,
1056 &plugin_paths_copy);
1057 cfg->plugin_paths = plugin_paths_copy;
1058 } else {
1059 cfg->plugin_paths = bt_value_array_create();
1060 if (!cfg->plugin_paths) {
1061 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1062 goto error;
1063 }
1064 }
1065
1066 goto end;
1067
1068 error:
1069 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1070
1071 end:
1072 return cfg;
1073 }
1074
1075 static
1076 struct bt_config *bt_config_run_create(const bt_value *plugin_paths)
1077 {
1078 struct bt_config *cfg;
1079
1080 /* Create config */
1081 cfg = bt_config_base_create(BT_CONFIG_COMMAND_RUN,
1082 plugin_paths, true);
1083 if (!cfg) {
1084 goto error;
1085 }
1086
1087 cfg->cmd_data.run.sources = g_ptr_array_new_with_free_func(
1088 (GDestroyNotify) bt_object_put_ref);
1089 if (!cfg->cmd_data.run.sources) {
1090 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1091 goto error;
1092 }
1093
1094 cfg->cmd_data.run.filters = g_ptr_array_new_with_free_func(
1095 (GDestroyNotify) bt_object_put_ref);
1096 if (!cfg->cmd_data.run.filters) {
1097 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1098 goto error;
1099 }
1100
1101 cfg->cmd_data.run.sinks = g_ptr_array_new_with_free_func(
1102 (GDestroyNotify) bt_object_put_ref);
1103 if (!cfg->cmd_data.run.sinks) {
1104 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1105 goto error;
1106 }
1107
1108 cfg->cmd_data.run.connections = g_ptr_array_new_with_free_func(
1109 (GDestroyNotify) bt_config_connection_destroy);
1110 if (!cfg->cmd_data.run.connections) {
1111 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1112 goto error;
1113 }
1114
1115 goto end;
1116
1117 error:
1118 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1119
1120 end:
1121 return cfg;
1122 }
1123
1124 static
1125 struct bt_config *bt_config_list_plugins_create(const bt_value *plugin_paths)
1126 {
1127 return bt_config_base_create(BT_CONFIG_COMMAND_LIST_PLUGINS,
1128 plugin_paths, true);
1129 }
1130
1131 static
1132 struct bt_config *bt_config_help_create(const bt_value *plugin_paths,
1133 int default_log_level)
1134 {
1135 struct bt_config *cfg;
1136
1137 /* Create config */
1138 cfg = bt_config_base_create(BT_CONFIG_COMMAND_HELP,
1139 plugin_paths, true);
1140 if (!cfg) {
1141 goto error;
1142 }
1143
1144 cfg->cmd_data.help.cfg_component =
1145 bt_config_component_create(-1, NULL, NULL, default_log_level);
1146 if (!cfg->cmd_data.help.cfg_component) {
1147 goto error;
1148 }
1149
1150 goto end;
1151
1152 error:
1153 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1154
1155 end:
1156 return cfg;
1157 }
1158
1159 static
1160 struct bt_config *bt_config_query_create(const bt_value *plugin_paths)
1161 {
1162 struct bt_config *cfg;
1163
1164 /* Create config */
1165 cfg = bt_config_base_create(BT_CONFIG_COMMAND_QUERY,
1166 plugin_paths, true);
1167 if (!cfg) {
1168 goto error;
1169 }
1170
1171 cfg->cmd_data.query.object = g_string_new(NULL);
1172 if (!cfg->cmd_data.query.object) {
1173 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1174 goto error;
1175 }
1176
1177 goto end;
1178
1179 error:
1180 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1181
1182 end:
1183 return cfg;
1184 }
1185
1186 static
1187 struct bt_config *bt_config_print_ctf_metadata_create(
1188 const bt_value *plugin_paths)
1189 {
1190 struct bt_config *cfg;
1191
1192 /* Create config */
1193 cfg = bt_config_base_create(BT_CONFIG_COMMAND_PRINT_CTF_METADATA,
1194 plugin_paths, true);
1195 if (!cfg) {
1196 goto error;
1197 }
1198
1199 cfg->cmd_data.print_ctf_metadata.path = g_string_new(NULL);
1200 if (!cfg->cmd_data.print_ctf_metadata.path) {
1201 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1202 goto error;
1203 }
1204
1205 cfg->cmd_data.print_ctf_metadata.output_path = g_string_new(NULL);
1206 if (!cfg->cmd_data.print_ctf_metadata.output_path) {
1207 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1208 goto error;
1209 }
1210
1211 goto end;
1212
1213 error:
1214 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1215
1216 end:
1217 return cfg;
1218 }
1219
1220 static
1221 struct bt_config *bt_config_print_lttng_live_sessions_create(
1222 const bt_value *plugin_paths)
1223 {
1224 struct bt_config *cfg;
1225
1226 /* Create config */
1227 cfg = bt_config_base_create(BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS,
1228 plugin_paths, true);
1229 if (!cfg) {
1230 goto error;
1231 }
1232
1233 cfg->cmd_data.print_lttng_live_sessions.url = g_string_new(NULL);
1234 if (!cfg->cmd_data.print_lttng_live_sessions.url) {
1235 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1236 goto error;
1237 }
1238
1239 cfg->cmd_data.print_lttng_live_sessions.output_path =
1240 g_string_new(NULL);
1241 if (!cfg->cmd_data.print_lttng_live_sessions.output_path) {
1242 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1243 goto error;
1244 }
1245
1246 goto end;
1247
1248 error:
1249 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1250
1251 end:
1252 return cfg;
1253 }
1254
1255 static
1256 int bt_config_append_plugin_paths_check_setuid_setgid(
1257 bt_value *plugin_paths, const char *arg)
1258 {
1259 int ret = 0;
1260
1261 if (bt_common_is_setuid_setgid()) {
1262 BT_LOGI_STR("Skipping non-system plugin paths for setuid/setgid binary.");
1263 goto end;
1264 }
1265
1266 if (bt_config_append_plugin_paths(plugin_paths, arg)) {
1267 BT_CLI_LOGE_APPEND_CAUSE("Invalid --plugin-path option's argument:\n %s",
1268 arg);
1269 ret = -1;
1270 goto end;
1271 }
1272
1273 end:
1274 return ret;
1275 }
1276
1277 /*
1278 * Prints the expected format for a --params option.
1279 */
1280 static
1281 void print_expected_params_format(FILE *fp)
1282 {
1283 fprintf(fp, "Expected format of PARAMS\n");
1284 fprintf(fp, "-------------------------\n");
1285 fprintf(fp, "\n");
1286 fprintf(fp, " PARAM=VALUE[,PARAM=VALUE]...\n");
1287 fprintf(fp, "\n");
1288 fprintf(fp, "The parameter string is a comma-separated list of PARAM=VALUE assignments,\n");
1289 fprintf(fp, "where PARAM is the parameter name (C identifier plus the [:.-] characters),\n");
1290 fprintf(fp, "and VALUE can be one of:\n");
1291 fprintf(fp, "\n");
1292 fprintf(fp, "* `null`, `nul`, `NULL`: null value (no backticks).\n");
1293 fprintf(fp, "* `true`, `TRUE`, `yes`, `YES`: true boolean value (no backticks).\n");
1294 fprintf(fp, "* `false`, `FALSE`, `no`, `NO`: false boolean value (no backticks).\n");
1295 fprintf(fp, "* Binary (`0b` prefix), octal (`0` prefix), decimal, or hexadecimal\n");
1296 fprintf(fp, " (`0x` prefix) unsigned (with `+` prefix) or signed 64-bit integer.\n");
1297 fprintf(fp, "* Double precision floating point number (scientific notation is accepted).\n");
1298 fprintf(fp, "* Unquoted string with no special characters, and not matching any of\n");
1299 fprintf(fp, " the null and boolean value symbols above.\n");
1300 fprintf(fp, "* Double-quoted string (accepts escape characters).\n");
1301 fprintf(fp, "* Array, formatted as an opening `[`, a list of comma-separated values\n");
1302 fprintf(fp, " (as described by the current list) and a closing `]`.\n");
1303 fprintf(fp, "* Map, formatted as an opening `{`, a comma-separated list of PARAM=VALUE\n");
1304 fprintf(fp, " assignments and a closing `}`.\n");
1305 fprintf(fp, "\n");
1306 fprintf(fp, "You can put whitespaces allowed around individual `=` and `,` symbols.\n");
1307 fprintf(fp, "\n");
1308 fprintf(fp, "Example:\n");
1309 fprintf(fp, "\n");
1310 fprintf(fp, " many=null, fresh=yes, condition=false, squirrel=-782329,\n");
1311 fprintf(fp, " play=+23, observe=3.14, simple=beef, needs-quotes=\"some string\",\n");
1312 fprintf(fp, " escape.chars-are:allowed=\"this is a \\\" double quote\",\n");
1313 fprintf(fp, " things=[1, \"2\", 3]\n");
1314 fprintf(fp, "\n");
1315 fprintf(fp, "IMPORTANT: Make sure to single-quote the whole argument when you run\n");
1316 fprintf(fp, "babeltrace2 from a shell.\n");
1317 }
1318
1319 static
1320 bool help_option_is_specified(
1321 const struct bt_argpar_parse_ret *argpar_parse_ret)
1322 {
1323 int i;
1324 bool specified = false;
1325
1326 for (i = 0; i < argpar_parse_ret->items->len; i++) {
1327 struct bt_argpar_item *argpar_item =
1328 g_ptr_array_index(argpar_parse_ret->items, i);
1329 struct bt_argpar_item_opt *argpar_item_opt;
1330
1331 if (argpar_item->type != BT_ARGPAR_ITEM_TYPE_OPT) {
1332 continue;
1333 }
1334
1335 argpar_item_opt = (struct bt_argpar_item_opt *) argpar_item;
1336 if (argpar_item_opt->descr->id == OPT_HELP) {
1337 specified = true;
1338 break;
1339 }
1340 }
1341
1342 return specified;
1343 }
1344
1345 /*
1346 * Prints the help command usage.
1347 */
1348 static
1349 void print_help_usage(FILE *fp)
1350 {
1351 fprintf(fp, "Usage: babeltrace2 [GENERAL OPTIONS] help [OPTIONS] PLUGIN\n");
1352 fprintf(fp, " babeltrace2 [GENERAL OPTIONS] help [OPTIONS] TYPE.PLUGIN.CLS\n");
1353 fprintf(fp, "\n");
1354 fprintf(fp, "Options:\n");
1355 fprintf(fp, "\n");
1356 fprintf(fp, " -h, --help Show this help and quit\n");
1357 fprintf(fp, "\n");
1358 fprintf(fp, "See `babeltrace2 --help` for the list of general options.\n");
1359 fprintf(fp, "\n");
1360 fprintf(fp, "Use `babeltrace2 list-plugins` to show the list of available plugins.\n");
1361 }
1362
1363 static
1364 const struct bt_argpar_opt_descr help_options[] = {
1365 /* id, short_name, long_name, with_arg */
1366 { OPT_HELP, 'h', "help", false },
1367 BT_ARGPAR_OPT_DESCR_SENTINEL
1368 };
1369
1370 /*
1371 * Creates a Babeltrace config object from the arguments of a help
1372 * command.
1373 *
1374 * *retcode is set to the appropriate exit code to use.
1375 */
1376 static
1377 struct bt_config *bt_config_help_from_args(int argc, const char *argv[],
1378 int *retcode, const bt_value *plugin_paths,
1379 int default_log_level)
1380 {
1381 struct bt_config *cfg = NULL;
1382 char *plugin_name = NULL, *comp_cls_name = NULL;
1383 struct bt_argpar_parse_ret argpar_parse_ret = { 0 };
1384 struct bt_argpar_item_non_opt *non_opt;
1385
1386 *retcode = 0;
1387 cfg = bt_config_help_create(plugin_paths, default_log_level);
1388 if (!cfg) {
1389 goto error;
1390 }
1391
1392 /* Parse options */
1393 argpar_parse_ret = bt_argpar_parse(argc, argv, help_options, true);
1394 if (argpar_parse_ret.error) {
1395 BT_CLI_LOGE_APPEND_CAUSE(
1396 "While parsing `help` command's command-line arguments: %s",
1397 argpar_parse_ret.error->str);
1398 goto error;
1399 }
1400
1401 if (help_option_is_specified(&argpar_parse_ret)) {
1402 print_help_usage(stdout);
1403 *retcode = -1;
1404 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1405 goto end;
1406 }
1407
1408 if (argpar_parse_ret.items->len == 0) {
1409 BT_CLI_LOGE_APPEND_CAUSE(
1410 "Missing plugin name or component class descriptor.");
1411 goto error;
1412 } else if (argpar_parse_ret.items->len > 1) {
1413 /*
1414 * At this point we know there are least two non-option
1415 * arguments because we don't reach here with `--help`,
1416 * the only option.
1417 */
1418 non_opt = argpar_parse_ret.items->pdata[1];
1419 BT_CLI_LOGE_APPEND_CAUSE(
1420 "Extraneous command-line argument specified to `help` command: `%s`.",
1421 non_opt->arg);
1422 goto error;
1423 }
1424
1425 non_opt = argpar_parse_ret.items->pdata[0];
1426 plugin_comp_cls_names(non_opt->arg, NULL, &plugin_name, &comp_cls_name,
1427 &cfg->cmd_data.help.cfg_component->type);
1428 if (plugin_name && comp_cls_name) {
1429 /* Component class help */
1430 g_string_assign(cfg->cmd_data.help.cfg_component->plugin_name,
1431 plugin_name);
1432 g_string_assign(cfg->cmd_data.help.cfg_component->comp_cls_name,
1433 comp_cls_name);
1434 } else {
1435 /* Fall back to plugin help */
1436 g_string_assign(cfg->cmd_data.help.cfg_component->plugin_name,
1437 non_opt->arg);
1438 }
1439
1440 goto end;
1441
1442 error:
1443 *retcode = 1;
1444 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1445
1446 end:
1447 g_free(plugin_name);
1448 g_free(comp_cls_name);
1449
1450 bt_argpar_parse_ret_fini(&argpar_parse_ret);
1451
1452 return cfg;
1453 }
1454
1455 /*
1456 * Prints the help command usage.
1457 */
1458 static
1459 void print_query_usage(FILE *fp)
1460 {
1461 fprintf(fp, "Usage: babeltrace2 [GEN OPTS] query [OPTS] TYPE.PLUGIN.CLS OBJECT\n");
1462 fprintf(fp, "\n");
1463 fprintf(fp, "Options:\n");
1464 fprintf(fp, "\n");
1465 fprintf(fp, " -p, --params=PARAMS Set the query parameters to PARAMS (see the expected\n");
1466 fprintf(fp, " format of PARAMS below)\n");
1467 fprintf(fp, " -h, --help Show this help and quit\n");
1468 fprintf(fp, "\n\n");
1469 print_expected_params_format(fp);
1470 }
1471
1472 static
1473 const struct bt_argpar_opt_descr query_options[] = {
1474 /* id, short_name, long_name, with_arg */
1475 { OPT_HELP, 'h', "help", false },
1476 { OPT_PARAMS, 'p', "params", true },
1477 BT_ARGPAR_OPT_DESCR_SENTINEL
1478 };
1479
1480 /*
1481 * Creates a Babeltrace config object from the arguments of a query
1482 * command.
1483 *
1484 * *retcode is set to the appropriate exit code to use.
1485 */
1486 static
1487 struct bt_config *bt_config_query_from_args(int argc, const char *argv[],
1488 int *retcode, const bt_value *plugin_paths,
1489 int default_log_level)
1490 {
1491 int i;
1492 struct bt_config *cfg = NULL;
1493 const char *component_class_spec = NULL;
1494 const char *query_object = NULL;
1495 bt_value *params;
1496 GString *error_str = NULL;
1497 struct bt_argpar_parse_ret argpar_parse_ret = { 0 };
1498
1499 params = bt_value_null;
1500 bt_value_get_ref(bt_value_null);
1501
1502 *retcode = 0;
1503 cfg = bt_config_query_create(plugin_paths);
1504 if (!cfg) {
1505 goto error;
1506 }
1507
1508 error_str = g_string_new(NULL);
1509 if (!error_str) {
1510 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1511 goto error;
1512 }
1513
1514 /* Parse options */
1515 argpar_parse_ret = bt_argpar_parse(argc, argv, query_options, true);
1516 if (argpar_parse_ret.error) {
1517 BT_CLI_LOGE_APPEND_CAUSE(
1518 "While parsing `query` command's command-line arguments: %s",
1519 argpar_parse_ret.error->str);
1520 goto error;
1521 }
1522
1523 if (help_option_is_specified(&argpar_parse_ret)) {
1524 print_query_usage(stdout);
1525 *retcode = -1;
1526 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1527 goto end;
1528 }
1529
1530 for (i = 0; i < argpar_parse_ret.items->len; i++) {
1531 struct bt_argpar_item *argpar_item =
1532 g_ptr_array_index(argpar_parse_ret.items, i);
1533
1534 if (argpar_item->type == BT_ARGPAR_ITEM_TYPE_OPT) {
1535 struct bt_argpar_item_opt *argpar_item_opt =
1536 (struct bt_argpar_item_opt *) argpar_item;
1537 const char *arg = argpar_item_opt->arg;
1538
1539 switch (argpar_item_opt->descr->id) {
1540 case OPT_PARAMS:
1541 {
1542 bt_value_put_ref(params);
1543 params = cli_value_from_arg(arg, error_str);
1544 if (!params) {
1545 BT_CLI_LOGE_APPEND_CAUSE("Invalid format for --params option's argument:\n %s",
1546 error_str->str);
1547 goto error;
1548 }
1549 break;
1550 }
1551 default:
1552 BT_CLI_LOGE_APPEND_CAUSE("Unknown command-line option specified (option code %d).",
1553 argpar_item_opt->descr->id);
1554 goto error;
1555 }
1556 } else {
1557 struct bt_argpar_item_non_opt *argpar_item_non_opt
1558 = (struct bt_argpar_item_non_opt *) argpar_item;
1559
1560 /*
1561 * We need exactly two non-option arguments
1562 * which are the mandatory component class
1563 * specification and query object.
1564 */
1565 if (!component_class_spec) {
1566 component_class_spec = argpar_item_non_opt->arg;
1567 } else if (!query_object) {
1568 query_object = argpar_item_non_opt->arg;
1569 } else {
1570 BT_CLI_LOGE_APPEND_CAUSE("Extraneous command-line argument specified to `query` command: `%s`.",
1571 argpar_item_non_opt->arg);
1572 goto error;
1573 }
1574 }
1575 }
1576
1577 if (!component_class_spec || !query_object) {
1578 print_query_usage(stdout);
1579 *retcode = -1;
1580 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1581 goto end;
1582 }
1583
1584 cfg->cmd_data.query.cfg_component =
1585 bt_config_component_from_arg(component_class_spec,
1586 default_log_level);
1587 if (!cfg->cmd_data.query.cfg_component) {
1588 BT_CLI_LOGE_APPEND_CAUSE("Invalid format for component class specification:\n %s",
1589 component_class_spec);
1590 goto error;
1591 }
1592
1593 BT_ASSERT(params);
1594 BT_OBJECT_MOVE_REF(cfg->cmd_data.query.cfg_component->params, params);
1595
1596 if (strlen(query_object) == 0) {
1597 BT_CLI_LOGE_APPEND_CAUSE("Invalid empty object.");
1598 goto error;
1599 }
1600
1601 g_string_assign(cfg->cmd_data.query.object, query_object);
1602 goto end;
1603
1604 error:
1605 *retcode = 1;
1606 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1607
1608 end:
1609 bt_argpar_parse_ret_fini(&argpar_parse_ret);
1610
1611 if (error_str) {
1612 g_string_free(error_str, TRUE);
1613 }
1614
1615 bt_value_put_ref(params);
1616 return cfg;
1617 }
1618
1619 /*
1620 * Prints the list-plugins command usage.
1621 */
1622 static
1623 void print_list_plugins_usage(FILE *fp)
1624 {
1625 fprintf(fp, "Usage: babeltrace2 [GENERAL OPTIONS] list-plugins [OPTIONS]\n");
1626 fprintf(fp, "\n");
1627 fprintf(fp, "Options:\n");
1628 fprintf(fp, "\n");
1629 fprintf(fp, " -h, --help Show this help and quit\n");
1630 fprintf(fp, "\n");
1631 fprintf(fp, "See `babeltrace2 --help` for the list of general options.\n");
1632 fprintf(fp, "\n");
1633 fprintf(fp, "Use `babeltrace2 help` to get help for a specific plugin or component class.\n");
1634 }
1635
1636 static
1637 const struct bt_argpar_opt_descr list_plugins_options[] = {
1638 /* id, short_name, long_name, with_arg */
1639 { OPT_HELP, 'h', "help", false },
1640 BT_ARGPAR_OPT_DESCR_SENTINEL
1641 };
1642
1643 /*
1644 * Creates a Babeltrace config object from the arguments of a
1645 * list-plugins command.
1646 *
1647 * *retcode is set to the appropriate exit code to use.
1648 */
1649 static
1650 struct bt_config *bt_config_list_plugins_from_args(int argc, const char *argv[],
1651 int *retcode, const bt_value *plugin_paths)
1652 {
1653 struct bt_config *cfg = NULL;
1654 struct bt_argpar_parse_ret argpar_parse_ret = { 0 };
1655
1656 *retcode = 0;
1657 cfg = bt_config_list_plugins_create(plugin_paths);
1658 if (!cfg) {
1659 goto error;
1660 }
1661
1662 /* Parse options */
1663 argpar_parse_ret = bt_argpar_parse(argc, argv, list_plugins_options, true);
1664 if (argpar_parse_ret.error) {
1665 BT_CLI_LOGE_APPEND_CAUSE(
1666 "While parsing `list-plugins` command's command-line arguments: %s",
1667 argpar_parse_ret.error->str);
1668 goto error;
1669 }
1670
1671 if (help_option_is_specified(&argpar_parse_ret)) {
1672 print_list_plugins_usage(stdout);
1673 *retcode = -1;
1674 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1675 goto end;
1676 }
1677
1678 if (argpar_parse_ret.items->len > 0) {
1679 /*
1680 * At this point we know there's at least one non-option
1681 * argument because we don't reach here with `--help`,
1682 * the only option.
1683 */
1684 struct bt_argpar_item_non_opt *non_opt =
1685 argpar_parse_ret.items->pdata[0];
1686
1687 BT_CLI_LOGE_APPEND_CAUSE(
1688 "Extraneous command-line argument specified to `list-plugins` command: `%s`.",
1689 non_opt->arg);
1690 goto error;
1691 }
1692
1693 goto end;
1694
1695 error:
1696 *retcode = 1;
1697 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1698
1699 end:
1700 bt_argpar_parse_ret_fini(&argpar_parse_ret);
1701
1702 return cfg;
1703 }
1704
1705 /*
1706 * Prints the run command usage.
1707 */
1708 static
1709 void print_run_usage(FILE *fp)
1710 {
1711 fprintf(fp, "Usage: babeltrace2 [GENERAL OPTIONS] run [OPTIONS]\n");
1712 fprintf(fp, "\n");
1713 fprintf(fp, "Options:\n");
1714 fprintf(fp, "\n");
1715 fprintf(fp, " -b, --base-params=PARAMS Set PARAMS as the current base parameters\n");
1716 fprintf(fp, " for all the following components until\n");
1717 fprintf(fp, " --reset-base-params is encountered\n");
1718 fprintf(fp, " (see the expected format of PARAMS below)\n");
1719 fprintf(fp, " -c, --component=NAME:TYPE.PLUGIN.CLS\n");
1720 fprintf(fp, " Instantiate the component class CLS of type\n");
1721 fprintf(fp, " TYPE (`source`, `filter`, or `sink`) found\n");
1722 fprintf(fp, " in the plugin PLUGIN, add it to the graph,\n");
1723 fprintf(fp, " and name it NAME");
1724 fprintf(fp, " -x, --connect=CONNECTION Connect two created components (see the\n");
1725 fprintf(fp, " expected format of CONNECTION below)\n");
1726 fprintf(fp, " -l, --log-level=LVL Set the log level of the current component to LVL\n");
1727 fprintf(fp, " (`N`, `T`, `D`, `I`, `W`, `E`, or `F`)\n");
1728 fprintf(fp, " -p, --params=PARAMS Add initialization parameters PARAMS to the\n");
1729 fprintf(fp, " current component (see the expected format\n");
1730 fprintf(fp, " of PARAMS below)\n");
1731 fprintf(fp, " -r, --reset-base-params Reset the current base parameters to an\n");
1732 fprintf(fp, " empty map\n");
1733 fprintf(fp, " --retry-duration=DUR When babeltrace2(1) needs to retry to run\n");
1734 fprintf(fp, " the graph later, retry in DUR µs\n");
1735 fprintf(fp, " (default: 100000)\n");
1736 fprintf(fp, " -h, --help Show this help and quit\n");
1737 fprintf(fp, "\n");
1738 fprintf(fp, "See `babeltrace2 --help` for the list of general options.\n");
1739 fprintf(fp, "\n\n");
1740 fprintf(fp, "Expected format of CONNECTION\n");
1741 fprintf(fp, "-----------------------------\n");
1742 fprintf(fp, "\n");
1743 fprintf(fp, " UPSTREAM[.UPSTREAM-PORT]:DOWNSTREAM[.DOWNSTREAM-PORT]\n");
1744 fprintf(fp, "\n");
1745 fprintf(fp, "UPSTREAM and DOWNSTREAM are names of the upstream and downstream\n");
1746 fprintf(fp, "components to connect together. You must escape the following characters\n\n");
1747 fprintf(fp, "with `\\`: `\\`, `.`, and `:`. You must set the name of the current\n");
1748 fprintf(fp, "component using the NAME prefix of the --component option.\n");
1749 fprintf(fp, "\n");
1750 fprintf(fp, "UPSTREAM-PORT and DOWNSTREAM-PORT are optional globbing patterns to\n");
1751 fprintf(fp, "identify the upstream and downstream ports to use for the connection.\n");
1752 fprintf(fp, "When the port is not specified, `*` is used.\n");
1753 fprintf(fp, "\n");
1754 fprintf(fp, "When a component named UPSTREAM has an available port which matches the\n");
1755 fprintf(fp, "UPSTREAM-PORT globbing pattern, it is connected to the first port which\n");
1756 fprintf(fp, "matches the DOWNSTREAM-PORT globbing pattern of the component named\n");
1757 fprintf(fp, "DOWNSTREAM.\n");
1758 fprintf(fp, "\n");
1759 fprintf(fp, "The only special character in UPSTREAM-PORT and DOWNSTREAM-PORT is `*`\n");
1760 fprintf(fp, "which matches anything. You must escape the following characters\n");
1761 fprintf(fp, "with `\\`: `\\`, `*`, `?`, `[`, `.`, and `:`.\n");
1762 fprintf(fp, "\n");
1763 fprintf(fp, "You can connect a source component to a filter or sink component. You\n");
1764 fprintf(fp, "can connect a filter component to a sink component.\n");
1765 fprintf(fp, "\n");
1766 fprintf(fp, "Examples:\n");
1767 fprintf(fp, "\n");
1768 fprintf(fp, " my-src:my-sink\n");
1769 fprintf(fp, " ctf-fs.*stream*:utils-muxer:*\n");
1770 fprintf(fp, "\n");
1771 fprintf(fp, "IMPORTANT: Make sure to single-quote the whole argument when you run\n");
1772 fprintf(fp, "babeltrace2 from a shell.\n");
1773 fprintf(fp, "\n\n");
1774 print_expected_params_format(fp);
1775 }
1776
1777 /*
1778 * Creates a Babeltrace config object from the arguments of a run
1779 * command.
1780 *
1781 * *retcode is set to the appropriate exit code to use.
1782 */
1783 static
1784 struct bt_config *bt_config_run_from_args(int argc, const char *argv[],
1785 int *retcode, const bt_value *plugin_paths,
1786 int default_log_level)
1787 {
1788 struct bt_config_component *cur_cfg_comp = NULL;
1789 bt_value *cur_base_params = NULL;
1790 int ret = 0;
1791 struct bt_config *cfg = NULL;
1792 bt_value *instance_names = NULL;
1793 bt_value *connection_args = NULL;
1794 char error_buf[256] = { 0 };
1795 long retry_duration = -1;
1796 bt_value_map_extend_status extend_status;
1797 GString *error_str = NULL;
1798 struct bt_argpar_parse_ret argpar_parse_ret = { 0 };
1799 int i;
1800
1801 static const struct bt_argpar_opt_descr run_options[] = {
1802 { OPT_BASE_PARAMS, 'b', "base-params", true },
1803 { OPT_COMPONENT, 'c', "component", true },
1804 { OPT_CONNECT, 'x', "connect", true },
1805 { OPT_HELP, 'h', "help", false },
1806 { OPT_LOG_LEVEL, 'l', "log-level", true },
1807 { OPT_PARAMS, 'p', "params", true },
1808 { OPT_RESET_BASE_PARAMS, 'r', "reset-base-params", false },
1809 { OPT_RETRY_DURATION, '\0', "retry-duration", true },
1810 BT_ARGPAR_OPT_DESCR_SENTINEL
1811 };
1812
1813 *retcode = 0;
1814
1815 error_str = g_string_new(NULL);
1816 if (!error_str) {
1817 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1818 goto error;
1819 }
1820
1821 if (argc < 1) {
1822 print_run_usage(stdout);
1823 *retcode = -1;
1824 goto end;
1825 }
1826
1827 cfg = bt_config_run_create(plugin_paths);
1828 if (!cfg) {
1829 goto error;
1830 }
1831
1832 cfg->cmd_data.run.retry_duration_us = 100000;
1833 cur_base_params = bt_value_map_create();
1834 if (!cur_base_params) {
1835 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1836 goto error;
1837 }
1838
1839 instance_names = bt_value_map_create();
1840 if (!instance_names) {
1841 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1842 goto error;
1843 }
1844
1845 connection_args = bt_value_array_create();
1846 if (!connection_args) {
1847 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1848 goto error;
1849 }
1850
1851 /* Parse options */
1852 argpar_parse_ret = bt_argpar_parse(argc, argv, run_options, true);
1853 if (argpar_parse_ret.error) {
1854 BT_CLI_LOGE_APPEND_CAUSE(
1855 "While parsing `run` command's command-line arguments: %s",
1856 argpar_parse_ret.error->str);
1857 goto error;
1858 }
1859
1860 if (help_option_is_specified(&argpar_parse_ret)) {
1861 print_run_usage(stdout);
1862 *retcode = -1;
1863 BT_OBJECT_PUT_REF_AND_RESET(cfg);
1864 goto end;
1865 }
1866
1867 for (i = 0; i < argpar_parse_ret.items->len; i++) {
1868 struct bt_argpar_item *argpar_item =
1869 g_ptr_array_index(argpar_parse_ret.items, i);
1870 struct bt_argpar_item_opt *argpar_item_opt;
1871 const char *arg;
1872
1873 /* This command does not accept non-option arguments.*/
1874 if (argpar_item->type == BT_ARGPAR_ITEM_TYPE_NON_OPT) {
1875 struct bt_argpar_item_non_opt *argpar_nonopt_item =
1876 (struct bt_argpar_item_non_opt *) argpar_item;
1877
1878 BT_CLI_LOGE_APPEND_CAUSE("Unexpected argument: `%s`",
1879 argpar_nonopt_item->arg);
1880 goto error;
1881 }
1882
1883 argpar_item_opt = (struct bt_argpar_item_opt *) argpar_item;
1884 arg = argpar_item_opt->arg;
1885
1886 switch (argpar_item_opt->descr->id) {
1887 case OPT_COMPONENT:
1888 {
1889 enum bt_config_component_dest dest;
1890
1891 BT_OBJECT_PUT_REF_AND_RESET(cur_cfg_comp);
1892 cur_cfg_comp = bt_config_component_from_arg(arg,
1893 default_log_level);
1894 if (!cur_cfg_comp) {
1895 BT_CLI_LOGE_APPEND_CAUSE("Invalid format for --component option's argument:\n %s",
1896 arg);
1897 goto error;
1898 }
1899
1900 switch (cur_cfg_comp->type) {
1901 case BT_COMPONENT_CLASS_TYPE_SOURCE:
1902 dest = BT_CONFIG_COMPONENT_DEST_SOURCE;
1903 break;
1904 case BT_COMPONENT_CLASS_TYPE_FILTER:
1905 dest = BT_CONFIG_COMPONENT_DEST_FILTER;
1906 break;
1907 case BT_COMPONENT_CLASS_TYPE_SINK:
1908 dest = BT_CONFIG_COMPONENT_DEST_SINK;
1909 break;
1910 default:
1911 abort();
1912 }
1913
1914 BT_ASSERT(cur_base_params);
1915 bt_value_put_ref(cur_cfg_comp->params);
1916 if (bt_value_copy(cur_base_params,
1917 &cur_cfg_comp->params) < 0) {
1918 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1919 goto error;
1920 }
1921
1922 ret = add_run_cfg_comp_check_name(cfg,
1923 cur_cfg_comp, dest,
1924 instance_names);
1925 if (ret) {
1926 goto error;
1927 }
1928
1929 break;
1930 }
1931 case OPT_PARAMS:
1932 {
1933 bt_value *params;
1934 bt_value *params_to_set;
1935
1936 if (!cur_cfg_comp) {
1937 BT_CLI_LOGE_APPEND_CAUSE("Cannot add parameters to unavailable component:\n %s",
1938 arg);
1939 goto error;
1940 }
1941
1942 params = cli_value_from_arg(arg, error_str);
1943 if (!params) {
1944 BT_CLI_LOGE_APPEND_CAUSE("Invalid format for --params option's argument:\n %s",
1945 error_str->str);
1946 goto error;
1947 }
1948
1949 extend_status = bt_value_map_extend(
1950 cur_cfg_comp->params, params, &params_to_set);
1951 BT_VALUE_PUT_REF_AND_RESET(params);
1952 if (extend_status != BT_VALUE_MAP_EXTEND_STATUS_OK) {
1953 BT_CLI_LOGE_APPEND_CAUSE("Cannot extend current component parameters with --params option's argument:\n %s",
1954 arg);
1955 goto error;
1956 }
1957
1958 BT_OBJECT_MOVE_REF(cur_cfg_comp->params, params_to_set);
1959 break;
1960 }
1961 case OPT_LOG_LEVEL:
1962 if (!cur_cfg_comp) {
1963 BT_CLI_LOGE_APPEND_CAUSE("Cannot set the log level of unavailable component:\n %s",
1964 arg);
1965 goto error;
1966 }
1967
1968 cur_cfg_comp->log_level =
1969 bt_log_get_level_from_string(arg);
1970 if (cur_cfg_comp->log_level < 0) {
1971 BT_CLI_LOGE_APPEND_CAUSE("Invalid argument for --log-level option:\n %s",
1972 arg);
1973 goto error;
1974 }
1975 break;
1976 case OPT_BASE_PARAMS:
1977 {
1978 bt_value *params = cli_value_from_arg(arg, error_str);
1979
1980 if (!params) {
1981 BT_CLI_LOGE_APPEND_CAUSE("Invalid format for --base-params option's argument:\n %s",
1982 error_str->str);
1983 goto error;
1984 }
1985
1986 BT_OBJECT_MOVE_REF(cur_base_params, params);
1987 break;
1988 }
1989 case OPT_RESET_BASE_PARAMS:
1990 BT_VALUE_PUT_REF_AND_RESET(cur_base_params);
1991 cur_base_params = bt_value_map_create();
1992 if (!cur_base_params) {
1993 BT_CLI_LOGE_APPEND_CAUSE_OOM();
1994 goto error;
1995 }
1996 break;
1997 case OPT_CONNECT:
1998 if (bt_value_array_append_string_element(
1999 connection_args, arg)) {
2000 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2001 goto error;
2002 }
2003 break;
2004 case OPT_RETRY_DURATION: {
2005 gchar *end;
2006 size_t arg_len = strlen(argpar_item_opt->arg);
2007
2008 retry_duration = g_ascii_strtoll(argpar_item_opt->arg, &end, 10);
2009
2010 if (arg_len == 0 || end != (argpar_item_opt->arg + arg_len)) {
2011 BT_CLI_LOGE_APPEND_CAUSE(
2012 "Could not parse --retry-duration option's argument as an unsigned integer: `%s`",
2013 argpar_item_opt->arg);
2014 goto error;
2015 }
2016
2017 if (retry_duration < 0) {
2018 BT_CLI_LOGE_APPEND_CAUSE("--retry-duration option's argument must be positive or 0: %ld",
2019 retry_duration);
2020 goto error;
2021 }
2022
2023 cfg->cmd_data.run.retry_duration_us =
2024 (uint64_t) retry_duration;
2025 break;
2026 }
2027 default:
2028 BT_CLI_LOGE_APPEND_CAUSE("Unknown command-line option specified (option code %d).",
2029 argpar_item_opt->descr->id);
2030 goto error;
2031 }
2032 }
2033
2034 BT_OBJECT_PUT_REF_AND_RESET(cur_cfg_comp);
2035
2036 if (cfg->cmd_data.run.sources->len == 0) {
2037 BT_CLI_LOGE_APPEND_CAUSE("Incomplete graph: no source component.");
2038 goto error;
2039 }
2040
2041 if (cfg->cmd_data.run.sinks->len == 0) {
2042 BT_CLI_LOGE_APPEND_CAUSE("Incomplete graph: no sink component.");
2043 goto error;
2044 }
2045
2046 ret = bt_config_cli_args_create_connections(cfg,
2047 connection_args,
2048 error_buf, 256);
2049 if (ret) {
2050 BT_CLI_LOGE_APPEND_CAUSE("Cannot creation connections:\n%s", error_buf);
2051 goto error;
2052 }
2053
2054 goto end;
2055
2056 error:
2057 *retcode = 1;
2058 BT_OBJECT_PUT_REF_AND_RESET(cfg);
2059
2060 end:
2061 if (error_str) {
2062 g_string_free(error_str, TRUE);
2063 }
2064
2065 bt_argpar_parse_ret_fini(&argpar_parse_ret);
2066 BT_OBJECT_PUT_REF_AND_RESET(cur_cfg_comp);
2067 BT_VALUE_PUT_REF_AND_RESET(cur_base_params);
2068 BT_VALUE_PUT_REF_AND_RESET(instance_names);
2069 BT_VALUE_PUT_REF_AND_RESET(connection_args);
2070 return cfg;
2071 }
2072
2073 static
2074 struct bt_config *bt_config_run_from_args_array(const bt_value *run_args,
2075 int *retcode, const bt_value *plugin_paths,
2076 int default_log_level)
2077 {
2078 struct bt_config *cfg = NULL;
2079 const char **argv;
2080 int64_t i, len;
2081 const size_t argc = bt_value_array_get_length(run_args);
2082
2083 argv = calloc(argc, sizeof(*argv));
2084 if (!argv) {
2085 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2086 goto end;
2087 }
2088
2089 len = bt_value_array_get_length(run_args);
2090 if (len < 0) {
2091 BT_CLI_LOGE_APPEND_CAUSE("Invalid executable arguments.");
2092 goto end;
2093 }
2094 for (i = 0; i < len; i++) {
2095 const bt_value *arg_value =
2096 bt_value_array_borrow_element_by_index_const(run_args,
2097 i);
2098 const char *arg;
2099
2100 BT_ASSERT(arg_value);
2101 arg = bt_value_string_get(arg_value);
2102 BT_ASSERT(arg);
2103 argv[i] = arg;
2104 }
2105
2106 cfg = bt_config_run_from_args(argc, argv, retcode,
2107 plugin_paths, default_log_level);
2108
2109 end:
2110 free(argv);
2111 return cfg;
2112 }
2113
2114 /*
2115 * Prints the convert command usage.
2116 */
2117 static
2118 void print_convert_usage(FILE *fp)
2119 {
2120 fprintf(fp, "Usage: babeltrace2 [GENERAL OPTIONS] [convert] [OPTIONS] [PATH/URL]\n");
2121 fprintf(fp, "\n");
2122 fprintf(fp, "Options:\n");
2123 fprintf(fp, "\n");
2124 fprintf(fp, " -c, --component=[NAME:]TYPE.PLUGIN.CLS\n");
2125 fprintf(fp, " Instantiate the component class CLS of type\n");
2126 fprintf(fp, " TYPE (`source`, `filter`, or `sink`) found\n");
2127 fprintf(fp, " in the plugin PLUGIN, add it to the\n");
2128 fprintf(fp, " conversion graph, and optionally name it\n");
2129 fprintf(fp, " NAME\n");
2130 fprintf(fp, " -l, --log-level=LVL Set the log level of the current component to LVL\n");
2131 fprintf(fp, " (`N`, `T`, `D`, `I`, `W`, `E`, or `F`)\n");
2132 fprintf(fp, " -p, --params=PARAMS Add initialization parameters PARAMS to the\n");
2133 fprintf(fp, " current component (see the expected format\n");
2134 fprintf(fp, " of PARAMS below)\n");
2135 fprintf(fp, " --retry-duration=DUR When babeltrace2(1) needs to retry to run\n");
2136 fprintf(fp, " the graph later, retry in DUR µs\n");
2137 fprintf(fp, " (default: 100000)\n");
2138 fprintf(fp, " dynamic plugins can be loaded\n");
2139 fprintf(fp, " --run-args Print the equivalent arguments for the\n");
2140 fprintf(fp, " `run` command to the standard output,\n");
2141 fprintf(fp, " formatted for a shell, and quit\n");
2142 fprintf(fp, " --run-args-0 Print the equivalent arguments for the\n");
2143 fprintf(fp, " `run` command to the standard output,\n");
2144 fprintf(fp, " formatted for `xargs -0`, and quit\n");
2145 fprintf(fp, " --stream-intersection Only process events when all streams\n");
2146 fprintf(fp, " are active\n");
2147 fprintf(fp, " -h, --help Show this help and quit\n");
2148 fprintf(fp, "\n");
2149 fprintf(fp, "Implicit `source.ctf.fs` component options:\n");
2150 fprintf(fp, "\n");
2151 fprintf(fp, " --clock-offset=SEC Set clock offset to SEC seconds\n");
2152 fprintf(fp, " --clock-offset-ns=NS Set clock offset to NS ns\n");
2153 fprintf(fp, "\n");
2154 fprintf(fp, "Implicit `sink.text.pretty` component options:\n");
2155 fprintf(fp, "\n");
2156 fprintf(fp, " --clock-cycles Print timestamps in clock cycles\n");
2157 fprintf(fp, " --clock-date Print timestamp dates\n");
2158 fprintf(fp, " --clock-gmt Print and parse timestamps in the GMT\n");
2159 fprintf(fp, " time zone instead of the local time zone\n");
2160 fprintf(fp, " --clock-seconds Print the timestamps as `SEC.NS` instead\n");
2161 fprintf(fp, " of `hh:mm:ss.nnnnnnnnn`\n");
2162 fprintf(fp, " --color=(never | auto | always)\n");
2163 fprintf(fp, " Never, automatically, or always emit\n");
2164 fprintf(fp, " console color codes\n");
2165 fprintf(fp, " -f, --fields=FIELD[,FIELD]... Print additional fields; FIELD can be:\n");
2166 fprintf(fp, " `all`, `trace`, `trace:hostname`,\n");
2167 fprintf(fp, " `trace:domain`, `trace:procname`,\n");
2168 fprintf(fp, " `trace:vpid`, `loglevel`, `emf`\n");
2169 fprintf(fp, " -n, --names=NAME[,NAME]... Print field names; NAME can be:\n");
2170 fprintf(fp, " `payload` (or `arg` or `args`), `none`,\n");
2171 fprintf(fp, " `all`, `scope`, `header`, `context`\n");
2172 fprintf(fp, " (or `ctx`)\n");
2173 fprintf(fp, " --no-delta Do not print time delta between\n");
2174 fprintf(fp, " consecutive events\n");
2175 fprintf(fp, " -w, --output=PATH Write output text to PATH instead of\n");
2176 fprintf(fp, " the standard output\n");
2177 fprintf(fp, "\n");
2178 fprintf(fp, "Implicit `filter.utils.muxer` component options:\n");
2179 fprintf(fp, "\n");
2180 fprintf(fp, " --clock-force-correlate Assume that clocks are inherently\n");
2181 fprintf(fp, " correlated across traces\n");
2182 fprintf(fp, "\n");
2183 fprintf(fp, "Implicit `filter.utils.trimmer` component options:\n");
2184 fprintf(fp, "\n");
2185 fprintf(fp, " -b, --begin=BEGIN Set the beginning time of the conversion\n");
2186 fprintf(fp, " time range to BEGIN (see the format of\n");
2187 fprintf(fp, " BEGIN below)\n");
2188 fprintf(fp, " -e, --end=END Set the end time of the conversion time\n");
2189 fprintf(fp, " range to END (see the format of END below)\n");
2190 fprintf(fp, " -t, --timerange=TIMERANGE Set conversion time range to TIMERANGE:\n");
2191 fprintf(fp, " BEGIN,END or [BEGIN,END] (literally `[` and\n");
2192 fprintf(fp, " `]`) (see the format of BEGIN/END below)\n");
2193 fprintf(fp, "\n");
2194 fprintf(fp, "Implicit `filter.lttng-utils.debug-info` component options:\n");
2195 fprintf(fp, "\n");
2196 fprintf(fp, " --debug-info Create an implicit\n");
2197 fprintf(fp, " `filter.lttng-utils.debug-info` component\n");
2198 fprintf(fp, " --debug-info-dir=DIR Search for debug info in directory DIR\n");
2199 fprintf(fp, " instead of `/usr/lib/debug`\n");
2200 fprintf(fp, " --debug-info-full-path Show full debug info source and\n");
2201 fprintf(fp, " binary paths instead of just names\n");
2202 fprintf(fp, " --debug-info-target-prefix=DIR\n");
2203 fprintf(fp, " Use directory DIR as a prefix when\n");
2204 fprintf(fp, " looking up executables during debug\n");
2205 fprintf(fp, " info analysis\n");
2206 fprintf(fp, "\n");
2207 fprintf(fp, "Legacy options that still work:\n");
2208 fprintf(fp, "\n");
2209 fprintf(fp, " -i, --input-format=(ctf | lttng-live)\n");
2210 fprintf(fp, " `ctf`:\n");
2211 fprintf(fp, " Create an implicit `source.ctf.fs`\n");
2212 fprintf(fp, " component\n");
2213 fprintf(fp, " `lttng-live`:\n");
2214 fprintf(fp, " Create an implicit `source.ctf.lttng-live`\n");
2215 fprintf(fp, " component\n");
2216 fprintf(fp, " -o, --output-format=(text | ctf | dummy | ctf-metadata)\n");
2217 fprintf(fp, " `text`:\n");
2218 fprintf(fp, " Create an implicit `sink.text.pretty`\n");
2219 fprintf(fp, " component\n");
2220 fprintf(fp, " `ctf`:\n");
2221 fprintf(fp, " Create an implicit `sink.ctf.fs`\n");
2222 fprintf(fp, " component\n");
2223 fprintf(fp, " `dummy`:\n");
2224 fprintf(fp, " Create an implicit `sink.utils.dummy`\n");
2225 fprintf(fp, " component\n");
2226 fprintf(fp, " `ctf-metadata`:\n");
2227 fprintf(fp, " Query the `source.ctf.fs` component class\n");
2228 fprintf(fp, " for metadata text and quit\n");
2229 fprintf(fp, "\n");
2230 fprintf(fp, "See `babeltrace2 --help` for the list of general options.\n");
2231 fprintf(fp, "\n\n");
2232 fprintf(fp, "Format of BEGIN and END\n");
2233 fprintf(fp, "-----------------------\n");
2234 fprintf(fp, "\n");
2235 fprintf(fp, " [YYYY-MM-DD [hh:mm:]]ss[.nnnnnnnnn]\n");
2236 fprintf(fp, "\n\n");
2237 print_expected_params_format(fp);
2238 }
2239
2240 static
2241 const struct bt_argpar_opt_descr convert_options[] = {
2242 /* id, short_name, long_name, with_arg */
2243 { OPT_BEGIN, 'b', "begin", true },
2244 { OPT_CLOCK_CYCLES, '\0', "clock-cycles", false },
2245 { OPT_CLOCK_DATE, '\0', "clock-date", false },
2246 { OPT_CLOCK_FORCE_CORRELATE, '\0', "clock-force-correlate", false },
2247 { OPT_CLOCK_GMT, '\0', "clock-gmt", false },
2248 { OPT_CLOCK_OFFSET, '\0', "clock-offset", true },
2249 { OPT_CLOCK_OFFSET_NS, '\0', "clock-offset-ns", true },
2250 { OPT_CLOCK_SECONDS, '\0', "clock-seconds", false },
2251 { OPT_COLOR, '\0', "color", true },
2252 { OPT_COMPONENT, 'c', "component", true },
2253 { OPT_DEBUG, 'd', "debug", false },
2254 { OPT_DEBUG_INFO_DIR, '\0', "debug-info-dir", true },
2255 { OPT_DEBUG_INFO_FULL_PATH, '\0', "debug-info-full-path", false },
2256 { OPT_DEBUG_INFO_TARGET_PREFIX, '\0', "debug-info-target-prefix", true },
2257 { OPT_END, 'e', "end", true },
2258 { OPT_FIELDS, 'f', "fields", true },
2259 { OPT_HELP, 'h', "help", false },
2260 { OPT_INPUT_FORMAT, 'i', "input-format", true },
2261 { OPT_LOG_LEVEL, 'l', "log-level", true },
2262 { OPT_NAMES, 'n', "names", true },
2263 { OPT_DEBUG_INFO, '\0', "debug-info", false },
2264 { OPT_NO_DELTA, '\0', "no-delta", false },
2265 { OPT_OMIT_HOME_PLUGIN_PATH, '\0', "omit-home-plugin-path", false },
2266 { OPT_OMIT_SYSTEM_PLUGIN_PATH, '\0', "omit-system-plugin-path", false },
2267 { OPT_OUTPUT, 'w', "output", true },
2268 { OPT_OUTPUT_FORMAT, 'o', "output-format", true },
2269 { OPT_PARAMS, 'p', "params", true },
2270 { OPT_PLUGIN_PATH, '\0', "plugin-path", true },
2271 { OPT_RETRY_DURATION, '\0', "retry-duration", true },
2272 { OPT_RUN_ARGS, '\0', "run-args", false },
2273 { OPT_RUN_ARGS_0, '\0', "run-args-0", false },
2274 { OPT_STREAM_INTERSECTION, '\0', "stream-intersection", false },
2275 { OPT_TIMERANGE, '\0', "timerange", true },
2276 { OPT_VERBOSE, 'v', "verbose", false },
2277 BT_ARGPAR_OPT_DESCR_SENTINEL
2278 };
2279
2280 static
2281 GString *get_component_auto_name(const char *prefix,
2282 const bt_value *existing_names)
2283 {
2284 unsigned int i = 0;
2285 GString *auto_name = g_string_new(NULL);
2286
2287 if (!auto_name) {
2288 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2289 goto end;
2290 }
2291
2292 if (!bt_value_map_has_entry(existing_names, prefix)) {
2293 g_string_assign(auto_name, prefix);
2294 goto end;
2295 }
2296
2297 do {
2298 g_string_printf(auto_name, "%s-%d", prefix, i);
2299 i++;
2300 } while (bt_value_map_has_entry(existing_names, auto_name->str));
2301
2302 end:
2303 return auto_name;
2304 }
2305
2306 struct implicit_component_args {
2307 bool exists;
2308
2309 /* The component class name (e.g. src.ctf.fs). */
2310 GString *comp_arg;
2311
2312 /* The component instance name. */
2313 GString *name_arg;
2314
2315 GString *params_arg;
2316 bt_value *extra_params;
2317 };
2318
2319 static
2320 int assign_name_to_implicit_component(struct implicit_component_args *args,
2321 const char *prefix, bt_value *existing_names,
2322 GList **comp_names, bool append_to_comp_names)
2323 {
2324 int ret = 0;
2325 GString *name = NULL;
2326
2327 if (!args->exists) {
2328 goto end;
2329 }
2330
2331 name = get_component_auto_name(prefix,
2332 existing_names);
2333
2334 if (!name) {
2335 ret = -1;
2336 goto end;
2337 }
2338
2339 g_string_assign(args->name_arg, name->str);
2340
2341 if (bt_value_map_insert_entry(existing_names, name->str,
2342 bt_value_null)) {
2343 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2344 ret = -1;
2345 goto end;
2346 }
2347
2348 if (append_to_comp_names) {
2349 *comp_names = g_list_append(*comp_names, name);
2350 name = NULL;
2351 }
2352
2353 end:
2354 if (name) {
2355 g_string_free(name, TRUE);
2356 }
2357
2358 return ret;
2359 }
2360
2361 static
2362 int append_run_args_for_implicit_component(
2363 struct implicit_component_args *impl_args,
2364 bt_value *run_args)
2365 {
2366 int ret = 0;
2367 size_t i;
2368 GString *component_arg_for_run = NULL;
2369
2370 if (!impl_args->exists) {
2371 goto end;
2372 }
2373
2374 component_arg_for_run = g_string_new(NULL);
2375 if (!component_arg_for_run) {
2376 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2377 goto error;
2378 }
2379
2380 /* Build the full `name:type.plugin.cls`. */
2381 BT_ASSERT(!strchr(impl_args->name_arg->str, '\\'));
2382 BT_ASSERT(!strchr(impl_args->name_arg->str, ':'));
2383 g_string_printf(component_arg_for_run, "%s:%s",
2384 impl_args->name_arg->str, impl_args->comp_arg->str);
2385
2386 if (bt_value_array_append_string_element(run_args, "--component")) {
2387 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2388 goto error;
2389 }
2390
2391 if (bt_value_array_append_string_element(run_args,
2392 component_arg_for_run->str)) {
2393 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2394 goto error;
2395 }
2396
2397 if (impl_args->params_arg->len > 0) {
2398 if (bt_value_array_append_string_element(run_args, "--params")) {
2399 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2400 goto error;
2401 }
2402
2403 if (bt_value_array_append_string_element(run_args,
2404 impl_args->params_arg->str)) {
2405 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2406 goto error;
2407 }
2408 }
2409
2410 for (i = 0; i < bt_value_array_get_length(impl_args->extra_params);
2411 i++) {
2412 const bt_value *elem;
2413 const char *arg;
2414
2415 elem = bt_value_array_borrow_element_by_index(impl_args->extra_params,
2416 i);
2417 if (!elem) {
2418 goto error;
2419 }
2420
2421 BT_ASSERT(bt_value_is_string(elem));
2422 arg = bt_value_string_get(elem);
2423 ret = bt_value_array_append_string_element(run_args, arg);
2424 if (ret) {
2425 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2426 goto error;
2427 }
2428 }
2429
2430 goto end;
2431
2432 error:
2433 ret = -1;
2434
2435 end:
2436 if (component_arg_for_run) {
2437 g_string_free(component_arg_for_run, TRUE);
2438 }
2439
2440 return ret;
2441 }
2442
2443 /* Free the fields of a `struct implicit_component_args`. */
2444
2445 static
2446 void finalize_implicit_component_args(struct implicit_component_args *args)
2447 {
2448 BT_ASSERT(args);
2449
2450 if (args->comp_arg) {
2451 g_string_free(args->comp_arg, TRUE);
2452 }
2453
2454 if (args->name_arg) {
2455 g_string_free(args->name_arg, TRUE);
2456 }
2457
2458 if (args->params_arg) {
2459 g_string_free(args->params_arg, TRUE);
2460 }
2461
2462 bt_value_put_ref(args->extra_params);
2463 }
2464
2465 /* Destroy a dynamically-allocated `struct implicit_component_args`. */
2466
2467 static
2468 void destroy_implicit_component_args(struct implicit_component_args *args)
2469 {
2470 finalize_implicit_component_args(args);
2471 g_free(args);
2472 }
2473
2474 /* Initialize the fields of an already allocated `struct implicit_component_args`. */
2475
2476 static
2477 int init_implicit_component_args(struct implicit_component_args *args,
2478 const char *comp_arg, bool exists)
2479 {
2480 int ret = 0;
2481
2482 args->exists = exists;
2483 args->comp_arg = g_string_new(comp_arg);
2484 args->name_arg = g_string_new(NULL);
2485 args->params_arg = g_string_new(NULL);
2486 args->extra_params = bt_value_array_create();
2487
2488 if (!args->comp_arg || !args->name_arg ||
2489 !args->params_arg || !args->extra_params) {
2490 ret = -1;
2491 finalize_implicit_component_args(args);
2492 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2493 goto end;
2494 }
2495
2496 end:
2497 return ret;
2498 }
2499
2500 /* Dynamically allocate and initialize a `struct implicit_component_args`. */
2501
2502 static
2503 struct implicit_component_args *create_implicit_component_args(
2504 const char *comp_arg)
2505 {
2506 struct implicit_component_args *args;
2507 int status;
2508
2509 args = g_new(struct implicit_component_args, 1);
2510 if (!args) {
2511 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2512 goto end;
2513 }
2514
2515 status = init_implicit_component_args(args, comp_arg, true);
2516 if (status != 0) {
2517 g_free(args);
2518 args = NULL;
2519 }
2520
2521 end:
2522 return args;
2523 }
2524
2525 static
2526 void append_implicit_component_param(struct implicit_component_args *args,
2527 const char *key, const char *value)
2528 {
2529 BT_ASSERT(args);
2530 BT_ASSERT(key);
2531 BT_ASSERT(value);
2532 append_param_arg(args->params_arg, key, value);
2533 }
2534
2535 /*
2536 * Append the given parameter (`key=value`) to all component specifications
2537 * in `implicit_comp_args` (an array of `struct implicit_component_args *`)
2538 * which match `comp_arg`.
2539 *
2540 * Return the number of matching components.
2541 */
2542
2543 static
2544 int append_multiple_implicit_components_param(GPtrArray *implicit_comp_args,
2545 const char *comp_arg, const char *key, const char *value)
2546 {
2547 int i;
2548 int n = 0;
2549
2550 for (i = 0; i < implicit_comp_args->len; i++) {
2551 struct implicit_component_args *args = implicit_comp_args->pdata[i];
2552
2553 if (strcmp(args->comp_arg->str, comp_arg) == 0) {
2554 append_implicit_component_param(args, key, value);
2555 n++;
2556 }
2557 }
2558
2559 return n;
2560 }
2561
2562 /* Escape value to make it suitable to use as a string parameter value. */
2563 static
2564 gchar *escape_string_value(const char *value)
2565 {
2566 GString *ret;
2567 const char *in;
2568
2569 ret = g_string_new(NULL);
2570 if (!ret) {
2571 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2572 goto end;
2573 }
2574
2575 in = value;
2576 while (*in) {
2577 switch (*in) {
2578 case '"':
2579 case '\\':
2580 g_string_append_c(ret, '\\');
2581 break;
2582 }
2583
2584 g_string_append_c(ret, *in);
2585
2586 in++;
2587 }
2588
2589 end:
2590 return g_string_free(ret, FALSE);
2591 }
2592
2593 static
2594 int bt_value_to_cli_param_value_append(const bt_value *value, GString *buf)
2595 {
2596 BT_ASSERT(buf);
2597
2598 int ret = -1;
2599
2600 switch (bt_value_get_type(value)) {
2601 case BT_VALUE_TYPE_STRING:
2602 {
2603 const char *str_value = bt_value_string_get(value);
2604 gchar *escaped_str_value;
2605
2606 escaped_str_value = escape_string_value(str_value);
2607 if (!escaped_str_value) {
2608 goto end;
2609 }
2610
2611 g_string_append_printf(buf, "\"%s\"", escaped_str_value);
2612
2613 g_free(escaped_str_value);
2614 break;
2615 }
2616 case BT_VALUE_TYPE_ARRAY: {
2617 g_string_append_c(buf, '[');
2618 uint64_t sz = bt_value_array_get_length(value);
2619 for (uint64_t i = 0; i < sz; i++) {
2620 const bt_value *item;
2621 int ret;
2622
2623 if (i > 0) {
2624 g_string_append(buf, ", ");
2625 }
2626
2627 item = bt_value_array_borrow_element_by_index_const(
2628 value, i);
2629 ret = bt_value_to_cli_param_value_append(item, buf);
2630
2631 if (ret) {
2632 goto end;
2633 }
2634 }
2635 g_string_append_c(buf, ']');
2636 break;
2637 }
2638 default:
2639 abort();
2640 }
2641
2642 ret = 0;
2643
2644 end:
2645 return ret;
2646 }
2647
2648 /*
2649 * Convert `value` to its equivalent representation as a command line parameter
2650 * value.
2651 */
2652
2653 static
2654 gchar *bt_value_to_cli_param_value(bt_value *value)
2655 {
2656 GString *buf;
2657 gchar *result = NULL;
2658
2659 buf = g_string_new(NULL);
2660 if (!buf) {
2661 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2662 goto error;
2663 }
2664
2665 if (bt_value_to_cli_param_value_append(value, buf)) {
2666 goto error;
2667 }
2668
2669 result = g_string_free(buf, FALSE);
2670 buf = NULL;
2671
2672 goto end;
2673
2674 error:
2675 if (buf) {
2676 g_string_free(buf, TRUE);
2677 }
2678
2679 end:
2680 return result;
2681 }
2682
2683 static
2684 int append_parameter_to_args(bt_value *args, const char *key, bt_value *value)
2685 {
2686 BT_ASSERT(args);
2687 BT_ASSERT(bt_value_get_type(args) == BT_VALUE_TYPE_ARRAY);
2688 BT_ASSERT(key);
2689 BT_ASSERT(value);
2690
2691 int ret = 0;
2692 gchar *str_value = NULL;
2693 GString *parameter = NULL;
2694
2695 if (bt_value_array_append_string_element(args, "--params")) {
2696 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2697 ret = -1;
2698 goto end;
2699 }
2700
2701 str_value = bt_value_to_cli_param_value(value);
2702 if (!str_value) {
2703 ret = -1;
2704 goto end;
2705 }
2706
2707 parameter = g_string_new(NULL);
2708 if (!parameter) {
2709 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2710 ret = -1;
2711 goto end;
2712 }
2713
2714 g_string_printf(parameter, "%s=%s", key, str_value);
2715
2716 if (bt_value_array_append_string_element(args, parameter->str)) {
2717 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2718 ret = -1;
2719 goto end;
2720 }
2721
2722 end:
2723 if (parameter) {
2724 g_string_free(parameter, TRUE);
2725 parameter = NULL;
2726 }
2727
2728 if (str_value) {
2729 g_free(str_value);
2730 str_value = NULL;
2731 }
2732
2733 return ret;
2734 }
2735
2736 static
2737 int append_string_parameter_to_args(bt_value *args, const char *key, const char *value)
2738 {
2739 bt_value *str_value;
2740 int ret;
2741
2742 str_value = bt_value_string_create_init(value);
2743
2744 if (!str_value) {
2745 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2746 ret = -1;
2747 goto end;
2748 }
2749
2750 ret = append_parameter_to_args(args, key, str_value);
2751
2752 end:
2753 BT_VALUE_PUT_REF_AND_RESET(str_value);
2754 return ret;
2755 }
2756
2757 static
2758 int append_implicit_component_extra_param(struct implicit_component_args *args,
2759 const char *key, const char *value)
2760 {
2761 return append_string_parameter_to_args(args->extra_params, key, value);
2762 }
2763
2764 /*
2765 * Escapes `.`, `:`, and `\` of `input` with `\`.
2766 */
2767 static
2768 GString *escape_dot_colon(const char *input)
2769 {
2770 GString *output = g_string_new(NULL);
2771 const char *ch;
2772
2773 if (!output) {
2774 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2775 goto end;
2776 }
2777
2778 for (ch = input; *ch != '\0'; ch++) {
2779 if (*ch == '\\' || *ch == '.' || *ch == ':') {
2780 g_string_append_c(output, '\\');
2781 }
2782
2783 g_string_append_c(output, *ch);
2784 }
2785
2786 end:
2787 return output;
2788 }
2789
2790 /*
2791 * Appends a --connect option to a list of arguments. `upstream_name`
2792 * and `downstream_name` are escaped with escape_dot_colon() in this
2793 * function.
2794 */
2795 static
2796 int append_connect_arg(bt_value *run_args,
2797 const char *upstream_name, const char *downstream_name)
2798 {
2799 int ret = 0;
2800 GString *e_upstream_name = escape_dot_colon(upstream_name);
2801 GString *e_downstream_name = escape_dot_colon(downstream_name);
2802 GString *arg = g_string_new(NULL);
2803
2804 if (!e_upstream_name || !e_downstream_name || !arg) {
2805 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2806 ret = -1;
2807 goto end;
2808 }
2809
2810 ret = bt_value_array_append_string_element(run_args, "--connect");
2811 if (ret) {
2812 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2813 ret = -1;
2814 goto end;
2815 }
2816
2817 g_string_append(arg, e_upstream_name->str);
2818 g_string_append_c(arg, ':');
2819 g_string_append(arg, e_downstream_name->str);
2820 ret = bt_value_array_append_string_element(run_args, arg->str);
2821 if (ret) {
2822 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2823 ret = -1;
2824 goto end;
2825 }
2826
2827 end:
2828 if (arg) {
2829 g_string_free(arg, TRUE);
2830 }
2831
2832 if (e_upstream_name) {
2833 g_string_free(e_upstream_name, TRUE);
2834 }
2835
2836 if (e_downstream_name) {
2837 g_string_free(e_downstream_name, TRUE);
2838 }
2839
2840 return ret;
2841 }
2842
2843 /*
2844 * Appends the run command's --connect options for the convert command.
2845 */
2846 static
2847 int convert_auto_connect(bt_value *run_args,
2848 GList *source_names, GList *filter_names,
2849 GList *sink_names)
2850 {
2851 int ret = 0;
2852 GList *source_at = source_names;
2853 GList *filter_at = filter_names;
2854 GList *filter_prev;
2855 GList *sink_at = sink_names;
2856
2857 BT_ASSERT(source_names);
2858 BT_ASSERT(filter_names);
2859 BT_ASSERT(sink_names);
2860
2861 /* Connect all sources to the first filter */
2862 for (source_at = source_names; source_at; source_at = g_list_next(source_at)) {
2863 GString *source_name = source_at->data;
2864 GString *filter_name = filter_at->data;
2865
2866 ret = append_connect_arg(run_args, source_name->str,
2867 filter_name->str);
2868 if (ret) {
2869 goto error;
2870 }
2871 }
2872
2873 filter_prev = filter_at;
2874 filter_at = g_list_next(filter_at);
2875
2876 /* Connect remaining filters */
2877 for (; filter_at; filter_prev = filter_at, filter_at = g_list_next(filter_at)) {
2878 GString *filter_name = filter_at->data;
2879 GString *filter_prev_name = filter_prev->data;
2880
2881 ret = append_connect_arg(run_args, filter_prev_name->str,
2882 filter_name->str);
2883 if (ret) {
2884 goto error;
2885 }
2886 }
2887
2888 /* Connect last filter to all sinks */
2889 for (sink_at = sink_names; sink_at; sink_at = g_list_next(sink_at)) {
2890 GString *filter_name = filter_prev->data;
2891 GString *sink_name = sink_at->data;
2892
2893 ret = append_connect_arg(run_args, filter_name->str,
2894 sink_name->str);
2895 if (ret) {
2896 goto error;
2897 }
2898 }
2899
2900 goto end;
2901
2902 error:
2903 ret = -1;
2904
2905 end:
2906 return ret;
2907 }
2908
2909 static
2910 int split_timerange(const char *arg, char **begin, char **end)
2911 {
2912 int ret = 0;
2913 const char *ch = arg;
2914 size_t end_pos;
2915 GString *g_begin = NULL;
2916 GString *g_end = NULL;
2917
2918 BT_ASSERT(arg);
2919
2920 if (*ch == '[') {
2921 ch++;
2922 }
2923
2924 g_begin = bt_common_string_until(ch, "", ",", &end_pos);
2925 if (!g_begin || ch[end_pos] != ',' || g_begin->len == 0) {
2926 goto error;
2927 }
2928
2929 ch += end_pos + 1;
2930
2931 g_end = bt_common_string_until(ch, "", "]", &end_pos);
2932 if (!g_end || g_end->len == 0) {
2933 goto error;
2934 }
2935
2936 BT_ASSERT(begin);
2937 BT_ASSERT(end);
2938 *begin = g_begin->str;
2939 *end = g_end->str;
2940 g_string_free(g_begin, FALSE);
2941 g_string_free(g_end, FALSE);
2942 g_begin = NULL;
2943 g_end = NULL;
2944 goto end;
2945
2946 error:
2947 ret = -1;
2948
2949 end:
2950 if (g_begin) {
2951 g_string_free(g_begin, TRUE);
2952 }
2953
2954 if (g_end) {
2955 g_string_free(g_end, TRUE);
2956 }
2957
2958 return ret;
2959 }
2960
2961 static
2962 int g_list_prepend_gstring(GList **list, const char *string)
2963 {
2964 int ret = 0;
2965 GString *gs = g_string_new(string);
2966
2967 BT_ASSERT(list);
2968
2969 if (!gs) {
2970 BT_CLI_LOGE_APPEND_CAUSE_OOM();
2971 goto end;
2972 }
2973
2974 *list = g_list_prepend(*list, gs);
2975
2976 end:
2977 return ret;
2978 }
2979
2980 /*
2981 * Create `struct implicit_component_args` structures for each of the
2982 * source components we identified. Add them to `component_args`.
2983 *
2984 * `non_opt_params` is an array where each element is an array of
2985 * strings containing all the arguments to `--params` that apply to the
2986 * non-option argument at the same index. For example, if, for a
2987 * non-option argument, the following `--params` options applied:
2988 *
2989 * --params=a=2 --params=b=3,c=4
2990 *
2991 * its entry in `non_opt_params` would contain
2992 *
2993 * ["a=2", "b=3,c=4"]
2994 */
2995
2996 static
2997 int create_implicit_component_args_from_auto_discovered_sources(
2998 const struct auto_source_discovery *auto_disc,
2999 const bt_value *non_opt_params,
3000 const bt_value *non_opt_loglevels,
3001 GPtrArray *component_args)
3002 {
3003 gchar *cc_name = NULL;
3004 struct implicit_component_args *comp = NULL;
3005 int status;
3006 guint i, len;
3007
3008 len = auto_disc->results->len;
3009
3010 for (i = 0; i < len; i++) {
3011 struct auto_source_discovery_result *res =
3012 g_ptr_array_index(auto_disc->results, i);
3013 uint64_t orig_indices_i, orig_indices_count;
3014
3015 g_free(cc_name);
3016 cc_name = g_strdup_printf("source.%s.%s", res->plugin_name, res->source_cc_name);
3017 if (!cc_name) {
3018 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3019 goto error;
3020 }
3021
3022 comp = create_implicit_component_args(cc_name);
3023 if (!comp) {
3024 goto error;
3025 }
3026
3027 /*
3028 * Append parameters and log levels of all the
3029 * non-option arguments that contributed to this
3030 * component instance coming into existence.
3031 */
3032 orig_indices_count = bt_value_array_get_length(res->original_input_indices);
3033 for (orig_indices_i = 0; orig_indices_i < orig_indices_count; orig_indices_i++) {
3034 const bt_value *orig_idx_value =
3035 bt_value_array_borrow_element_by_index(
3036 res->original_input_indices, orig_indices_i);
3037 uint64_t orig_idx = bt_value_integer_unsigned_get(orig_idx_value);
3038 const bt_value *params_array =
3039 bt_value_array_borrow_element_by_index_const(
3040 non_opt_params, orig_idx);
3041 uint64_t params_i, params_count;
3042 const bt_value *loglevel_value;
3043
3044 params_count = bt_value_array_get_length(params_array);
3045 for (params_i = 0; params_i < params_count; params_i++) {
3046 const bt_value *params_value =
3047 bt_value_array_borrow_element_by_index_const(
3048 params_array, params_i);
3049 const char *params = bt_value_string_get(params_value);
3050 bt_value_array_append_element_status append_status;
3051
3052 append_status = bt_value_array_append_string_element(
3053 comp->extra_params, "--params");
3054 if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) {
3055 BT_CLI_LOGE_APPEND_CAUSE("Failed to append array element.");
3056 goto error;
3057 }
3058
3059 append_status = bt_value_array_append_string_element(
3060 comp->extra_params, params);
3061 if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) {
3062 BT_CLI_LOGE_APPEND_CAUSE("Failed to append array element.");
3063 goto error;
3064 }
3065 }
3066
3067 loglevel_value = bt_value_array_borrow_element_by_index_const(
3068 non_opt_loglevels, orig_idx);
3069 if (bt_value_get_type(loglevel_value) == BT_VALUE_TYPE_STRING) {
3070 const char *loglevel = bt_value_string_get(loglevel_value);
3071 bt_value_array_append_element_status append_status;
3072
3073 append_status = bt_value_array_append_string_element(
3074 comp->extra_params, "--log-level");
3075 if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) {
3076 BT_CLI_LOGE_APPEND_CAUSE("Failed to append array element.");
3077 goto error;
3078 }
3079
3080 append_status = bt_value_array_append_string_element(
3081 comp->extra_params, loglevel);
3082 if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) {
3083 BT_CLI_LOGE_APPEND_CAUSE("Failed to append array element.");
3084 goto error;
3085 }
3086 }
3087 }
3088
3089 status = append_parameter_to_args(comp->extra_params, "inputs", res->inputs);
3090 if (status != 0) {
3091 goto error;
3092 }
3093
3094 g_ptr_array_add(component_args, comp);
3095 comp = NULL;
3096 }
3097
3098 status = 0;
3099 goto end;
3100
3101 error:
3102 status = -1;
3103
3104 end:
3105 g_free(cc_name);
3106
3107 if (comp) {
3108 destroy_implicit_component_args(comp);
3109 }
3110
3111 return status;
3112 }
3113
3114 /*
3115 * As we iterate the arguments to the convert command, this tracks what is the
3116 * type of the current item, to which some contextual options (e.g. --params)
3117 * apply to.
3118 */
3119 enum convert_current_item_type {
3120 /* There is no current item. */
3121 CONVERT_CURRENT_ITEM_TYPE_NONE,
3122
3123 /* Current item is a component. */
3124 CONVERT_CURRENT_ITEM_TYPE_COMPONENT,
3125
3126 /* Current item is a non-option argument. */
3127 CONVERT_CURRENT_ITEM_TYPE_NON_OPT,
3128 };
3129
3130 /*
3131 * Creates a Babeltrace config object from the arguments of a convert
3132 * command.
3133 *
3134 * *retcode is set to the appropriate exit code to use.
3135 */
3136 static
3137 struct bt_config *bt_config_convert_from_args(int argc, const char *argv[],
3138 int *retcode, const bt_value *plugin_paths,
3139 int *default_log_level, const bt_interrupter *interrupter)
3140 {
3141 enum convert_current_item_type current_item_type =
3142 CONVERT_CURRENT_ITEM_TYPE_NONE;
3143 int ret = 0;
3144 struct bt_config *cfg = NULL;
3145 bool got_input_format_opt = false;
3146 bool got_output_format_opt = false;
3147 bool trimmer_has_begin = false;
3148 bool trimmer_has_end = false;
3149 bool stream_intersection_mode = false;
3150 bool print_run_args = false;
3151 bool print_run_args_0 = false;
3152 bool print_ctf_metadata = false;
3153 bt_value *run_args = NULL;
3154 bt_value *all_names = NULL;
3155 GList *source_names = NULL;
3156 GList *filter_names = NULL;
3157 GList *sink_names = NULL;
3158 bt_value *non_opts = NULL;
3159 bt_value *non_opt_params = NULL;
3160 bt_value *non_opt_loglevels = NULL;
3161 struct implicit_component_args implicit_ctf_output_args = { 0 };
3162 struct implicit_component_args implicit_lttng_live_args = { 0 };
3163 struct implicit_component_args implicit_dummy_args = { 0 };
3164 struct implicit_component_args implicit_text_args = { 0 };
3165 struct implicit_component_args implicit_debug_info_args = { 0 };
3166 struct implicit_component_args implicit_muxer_args = { 0 };
3167 struct implicit_component_args implicit_trimmer_args = { 0 };
3168 char error_buf[256] = { 0 };
3169 size_t i;
3170 struct bt_common_lttng_live_url_parts lttng_live_url_parts = { 0 };
3171 char *output = NULL;
3172 struct auto_source_discovery auto_disc = { NULL };
3173 GString *auto_disc_comp_name = NULL;
3174 struct bt_argpar_parse_ret argpar_parse_ret = { 0 };
3175 GString *name_gstr = NULL;
3176 GString *component_arg_for_run = NULL;
3177 bt_value *live_inputs_array_val = NULL;
3178
3179 /*
3180 * Array of `struct implicit_component_args *` created for the sources
3181 * we have auto-discovered.
3182 */
3183 GPtrArray *discovered_source_args = NULL;
3184
3185 /*
3186 * If set, restrict automatic source discovery to this component class
3187 * of this plugin.
3188 */
3189 const char *auto_source_discovery_restrict_plugin_name = NULL;
3190 const char *auto_source_discovery_restrict_component_class_name = NULL;
3191
3192 gchar *ctf_fs_source_clock_class_offset_arg = NULL;
3193 gchar *ctf_fs_source_clock_class_offset_ns_arg = NULL;
3194 *retcode = 0;
3195
3196 if (argc < 1) {
3197 print_convert_usage(stdout);
3198 *retcode = -1;
3199 goto end;
3200 }
3201
3202 if (init_implicit_component_args(&implicit_ctf_output_args,
3203 "sink.ctf.fs", false)) {
3204 goto error;
3205 }
3206
3207 if (init_implicit_component_args(&implicit_lttng_live_args,
3208 "source.ctf.lttng-live", false)) {
3209 goto error;
3210 }
3211
3212 if (init_implicit_component_args(&implicit_text_args,
3213 "sink.text.pretty", false)) {
3214 goto error;
3215 }
3216
3217 if (init_implicit_component_args(&implicit_dummy_args,
3218 "sink.utils.dummy", false)) {
3219 goto error;
3220 }
3221
3222 if (init_implicit_component_args(&implicit_debug_info_args,
3223 "filter.lttng-utils.debug-info", false)) {
3224 goto error;
3225 }
3226
3227 if (init_implicit_component_args(&implicit_muxer_args,
3228 "filter.utils.muxer", true)) {
3229 goto error;
3230 }
3231
3232 if (init_implicit_component_args(&implicit_trimmer_args,
3233 "filter.utils.trimmer", false)) {
3234 goto error;
3235 }
3236
3237 all_names = bt_value_map_create();
3238 if (!all_names) {
3239 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3240 goto error;
3241 }
3242
3243 run_args = bt_value_array_create();
3244 if (!run_args) {
3245 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3246 goto error;
3247 }
3248
3249 component_arg_for_run = g_string_new(NULL);
3250 if (!component_arg_for_run) {
3251 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3252 goto error;
3253 }
3254
3255 non_opts = bt_value_array_create();
3256 if (!non_opts) {
3257 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3258 goto error;
3259 }
3260
3261 non_opt_params = bt_value_array_create();
3262 if (!non_opt_params) {
3263 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3264 goto error;
3265 }
3266
3267 non_opt_loglevels = bt_value_array_create();
3268 if (!non_opt_loglevels) {
3269 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3270 goto error;
3271 }
3272
3273 if (auto_source_discovery_init(&auto_disc) != 0) {
3274 goto error;
3275 }
3276
3277 discovered_source_args =
3278 g_ptr_array_new_with_free_func((GDestroyNotify) destroy_implicit_component_args);
3279 if (!discovered_source_args) {
3280 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3281 goto error;
3282 }
3283
3284 auto_disc_comp_name = g_string_new(NULL);
3285 if (!auto_disc_comp_name) {
3286 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3287 goto error;
3288 }
3289
3290 /*
3291 * First pass: collect all arguments which need to be passed
3292 * as is to the run command. This pass can also add --name
3293 * arguments if needed to automatically name unnamed component
3294 * instances.
3295 */
3296 argpar_parse_ret = bt_argpar_parse(argc, argv, convert_options, true);
3297 if (argpar_parse_ret.error) {
3298 BT_CLI_LOGE_APPEND_CAUSE(
3299 "While parsing `convert` command's command-line arguments: %s",
3300 argpar_parse_ret.error->str);
3301 goto error;
3302 }
3303
3304 if (help_option_is_specified(&argpar_parse_ret)) {
3305 print_convert_usage(stdout);
3306 *retcode = -1;
3307 BT_OBJECT_PUT_REF_AND_RESET(cfg);
3308 goto end;
3309 }
3310
3311 for (i = 0; i < argpar_parse_ret.items->len; i++) {
3312 struct bt_argpar_item *argpar_item =
3313 g_ptr_array_index(argpar_parse_ret.items, i);
3314 struct bt_argpar_item_opt *argpar_item_opt;
3315 char *name = NULL;
3316 char *plugin_name = NULL;
3317 char *comp_cls_name = NULL;
3318 const char *arg;
3319
3320 if (argpar_item->type == BT_ARGPAR_ITEM_TYPE_OPT) {
3321 argpar_item_opt = (struct bt_argpar_item_opt *) argpar_item;
3322 arg = argpar_item_opt->arg;
3323
3324 switch (argpar_item_opt->descr->id) {
3325 case OPT_COMPONENT:
3326 {
3327 bt_component_class_type type;
3328
3329 current_item_type = CONVERT_CURRENT_ITEM_TYPE_COMPONENT;
3330
3331 /* Parse the argument */
3332 plugin_comp_cls_names(arg, &name, &plugin_name,
3333 &comp_cls_name, &type);
3334 if (!plugin_name || !comp_cls_name) {
3335 BT_CLI_LOGE_APPEND_CAUSE(
3336 "Invalid format for --component option's argument:\n %s",
3337 arg);
3338 goto error;
3339 }
3340
3341 if (name) {
3342 /*
3343 * Name was given by the user, verify it isn't
3344 * taken.
3345 */
3346 if (bt_value_map_has_entry(all_names, name)) {
3347 BT_CLI_LOGE_APPEND_CAUSE(
3348 "Duplicate component instance name:\n %s",
3349 name);
3350 goto error;
3351 }
3352
3353 name_gstr = g_string_new(name);
3354 if (!name_gstr) {
3355 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3356 goto error;
3357 }
3358
3359 g_string_assign(component_arg_for_run, arg);
3360 } else {
3361 /* Name not given by user, generate one. */
3362 name_gstr = get_component_auto_name(arg, all_names);
3363 if (!name_gstr) {
3364 goto error;
3365 }
3366
3367 g_string_printf(component_arg_for_run, "%s:%s",
3368 name_gstr->str, arg);
3369 }
3370
3371 if (bt_value_array_append_string_element(run_args,
3372 "--component")) {
3373 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3374 goto error;
3375 }
3376
3377 if (bt_value_array_append_string_element(run_args,
3378 component_arg_for_run->str)) {
3379 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3380 goto error;
3381 }
3382
3383 /*
3384 * Remember this name globally, for the uniqueness of
3385 * all component names.
3386 */
3387 if (bt_value_map_insert_entry(all_names,
3388 name_gstr->str, bt_value_null)) {
3389 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3390 goto error;
3391 }
3392
3393 /*
3394 * Remember this name specifically for the type of the
3395 * component. This is to create connection arguments.
3396 *
3397 * The list takes ownership of `name_gstr`.
3398 */
3399 switch (type) {
3400 case BT_COMPONENT_CLASS_TYPE_SOURCE:
3401 source_names = g_list_append(source_names, name_gstr);
3402 break;
3403 case BT_COMPONENT_CLASS_TYPE_FILTER:
3404 filter_names = g_list_append(filter_names, name_gstr);
3405 break;
3406 case BT_COMPONENT_CLASS_TYPE_SINK:
3407 sink_names = g_list_append(sink_names, name_gstr);
3408 break;
3409 default:
3410 abort();
3411 }
3412 name_gstr = NULL;
3413
3414 free(name);
3415 free(plugin_name);
3416 free(comp_cls_name);
3417 name = NULL;
3418 plugin_name = NULL;
3419 comp_cls_name = NULL;
3420 break;
3421 }
3422 case OPT_PARAMS:
3423 if (current_item_type == CONVERT_CURRENT_ITEM_TYPE_COMPONENT) {
3424 /*
3425 * The current item is a component (--component option),
3426 * pass it directly to the run args.
3427 */
3428 if (bt_value_array_append_string_element(run_args,
3429 "--params")) {
3430 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3431 goto error;
3432 }
3433
3434 if (bt_value_array_append_string_element(run_args, arg)) {
3435 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3436 goto error;
3437 }
3438 } else if (current_item_type == CONVERT_CURRENT_ITEM_TYPE_NON_OPT) {
3439 /*
3440 * The current item is a
3441 * non-option argument, record
3442 * it in `non_opt_params`.
3443 */
3444 bt_value *array;
3445 bt_value_array_append_element_status append_element_status;
3446 uint64_t idx = bt_value_array_get_length(non_opt_params) - 1;
3447
3448 array = bt_value_array_borrow_element_by_index(non_opt_params, idx);
3449
3450 append_element_status = bt_value_array_append_string_element(array, arg);
3451 if (append_element_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) {
3452 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3453 goto error;
3454 }
3455 } else {
3456 BT_CLI_LOGE_APPEND_CAUSE(
3457 "No current component (--component option) or non-option argument of which to set parameters:\n %s",
3458 arg);
3459 goto error;
3460 }
3461 break;
3462 case OPT_LOG_LEVEL:
3463 if (current_item_type == CONVERT_CURRENT_ITEM_TYPE_COMPONENT) {
3464 if (bt_value_array_append_string_element(run_args, "--log-level")) {
3465 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3466 goto error;
3467 }
3468
3469 if (bt_value_array_append_string_element(run_args, arg)) {
3470 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3471 goto error;
3472 }
3473 } else if (current_item_type == CONVERT_CURRENT_ITEM_TYPE_NON_OPT) {
3474 uint64_t idx = bt_value_array_get_length(non_opt_loglevels) - 1;
3475 bt_value *log_level_str_value;
3476
3477 log_level_str_value = bt_value_string_create_init(arg);
3478 if (!log_level_str_value) {
3479 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3480 goto error;
3481 }
3482
3483 if (bt_value_array_set_element_by_index(non_opt_loglevels, idx,
3484 log_level_str_value)) {
3485 bt_value_put_ref(log_level_str_value);
3486 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3487 goto error;
3488 }
3489 } else {
3490 BT_CLI_LOGE_APPEND_CAUSE(
3491 "No current component (--component option) or non-option argument to assign a log level to:\n %s",
3492 arg);
3493 goto error;
3494 }
3495
3496 break;
3497 case OPT_RETRY_DURATION:
3498 if (bt_value_array_append_string_element(run_args,
3499 "--retry-duration")) {
3500 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3501 goto error;
3502 }
3503
3504 if (bt_value_array_append_string_element(run_args, arg)) {
3505 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3506 goto error;
3507 }
3508 break;
3509 case OPT_BEGIN:
3510 case OPT_CLOCK_CYCLES:
3511 case OPT_CLOCK_DATE:
3512 case OPT_CLOCK_FORCE_CORRELATE:
3513 case OPT_CLOCK_GMT:
3514 case OPT_CLOCK_OFFSET:
3515 case OPT_CLOCK_OFFSET_NS:
3516 case OPT_CLOCK_SECONDS:
3517 case OPT_COLOR:
3518 case OPT_DEBUG:
3519 case OPT_DEBUG_INFO:
3520 case OPT_DEBUG_INFO_DIR:
3521 case OPT_DEBUG_INFO_FULL_PATH:
3522 case OPT_DEBUG_INFO_TARGET_PREFIX:
3523 case OPT_END:
3524 case OPT_FIELDS:
3525 case OPT_INPUT_FORMAT:
3526 case OPT_NAMES:
3527 case OPT_NO_DELTA:
3528 case OPT_OUTPUT_FORMAT:
3529 case OPT_OUTPUT:
3530 case OPT_RUN_ARGS:
3531 case OPT_RUN_ARGS_0:
3532 case OPT_STREAM_INTERSECTION:
3533 case OPT_TIMERANGE:
3534 case OPT_VERBOSE:
3535 /* Ignore in this pass */
3536 break;
3537 default:
3538 BT_CLI_LOGE_APPEND_CAUSE("Unknown command-line option specified (option code %d).",
3539 argpar_item_opt->descr->id);
3540 goto error;
3541 }
3542 } else if (argpar_item->type == BT_ARGPAR_ITEM_TYPE_NON_OPT) {
3543 struct bt_argpar_item_non_opt *argpar_item_non_opt;
3544 bt_value_array_append_element_status append_status;
3545
3546 current_item_type = CONVERT_CURRENT_ITEM_TYPE_NON_OPT;
3547
3548 argpar_item_non_opt = (struct bt_argpar_item_non_opt *) argpar_item;
3549
3550 append_status = bt_value_array_append_string_element(non_opts,
3551 argpar_item_non_opt->arg);
3552 if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) {
3553 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3554 goto error;
3555 }
3556
3557 append_status = bt_value_array_append_empty_array_element(
3558 non_opt_params, NULL);
3559 if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) {
3560 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3561 goto error;
3562 }
3563
3564 append_status = bt_value_array_append_element(non_opt_loglevels, bt_value_null);
3565 if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) {
3566 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3567 goto error;
3568 }
3569 } else {
3570 abort();
3571 }
3572 }
3573
3574 /*
3575 * Second pass: transform the convert-specific options and
3576 * arguments into implicit component instances for the run
3577 * command.
3578 */
3579 for (i = 0; i < argpar_parse_ret.items->len; i++) {
3580 struct bt_argpar_item *argpar_item =
3581 g_ptr_array_index(argpar_parse_ret.items, i);
3582 struct bt_argpar_item_opt *argpar_item_opt;
3583 const char *arg;
3584
3585 if (argpar_item->type != BT_ARGPAR_ITEM_TYPE_OPT) {
3586 continue;
3587 }
3588
3589 argpar_item_opt = (struct bt_argpar_item_opt *) argpar_item;
3590 arg = argpar_item_opt->arg;
3591
3592 switch (argpar_item_opt->descr->id) {
3593 case OPT_BEGIN:
3594 if (trimmer_has_begin) {
3595 printf("At --begin option: --begin or --timerange option already specified\n %s\n",
3596 arg);
3597 goto error;
3598 }
3599
3600 trimmer_has_begin = true;
3601 ret = append_implicit_component_extra_param(
3602 &implicit_trimmer_args, "begin", arg);
3603 implicit_trimmer_args.exists = true;
3604 if (ret) {
3605 goto error;
3606 }
3607 break;
3608 case OPT_END:
3609 if (trimmer_has_end) {
3610 printf("At --end option: --end or --timerange option already specified\n %s\n",
3611 arg);
3612 goto error;
3613 }
3614
3615 trimmer_has_end = true;
3616 ret = append_implicit_component_extra_param(
3617 &implicit_trimmer_args, "end", arg);
3618 implicit_trimmer_args.exists = true;
3619 if (ret) {
3620 goto error;
3621 }
3622 break;
3623 case OPT_TIMERANGE:
3624 {
3625 char *begin;
3626 char *end;
3627
3628 if (trimmer_has_begin || trimmer_has_end) {
3629 printf("At --timerange option: --begin, --end, or --timerange option already specified\n %s\n",
3630 arg);
3631 goto error;
3632 }
3633
3634 ret = split_timerange(arg, &begin, &end);
3635 if (ret) {
3636 BT_CLI_LOGE_APPEND_CAUSE("Invalid --timerange option's argument: expecting BEGIN,END or [BEGIN,END]:\n %s",
3637 arg);
3638 goto error;
3639 }
3640
3641 ret = append_implicit_component_extra_param(
3642 &implicit_trimmer_args, "begin", begin);
3643 ret |= append_implicit_component_extra_param(
3644 &implicit_trimmer_args, "end", end);
3645 implicit_trimmer_args.exists = true;
3646 free(begin);
3647 free(end);
3648 if (ret) {
3649 goto error;
3650 }
3651 break;
3652 }
3653 case OPT_CLOCK_CYCLES:
3654 append_implicit_component_param(
3655 &implicit_text_args, "clock-cycles", "yes");
3656 implicit_text_args.exists = true;
3657 break;
3658 case OPT_CLOCK_DATE:
3659 append_implicit_component_param(
3660 &implicit_text_args, "clock-date", "yes");
3661 implicit_text_args.exists = true;
3662 break;
3663 case OPT_CLOCK_FORCE_CORRELATE:
3664 append_implicit_component_param(
3665 &implicit_muxer_args,
3666 "assume-absolute-clock-classes", "yes");
3667 break;
3668 case OPT_CLOCK_GMT:
3669 append_implicit_component_param(
3670 &implicit_text_args, "clock-gmt", "yes");
3671 append_implicit_component_param(
3672 &implicit_trimmer_args, "gmt", "yes");
3673 implicit_text_args.exists = true;
3674 break;
3675 case OPT_CLOCK_OFFSET:
3676 if (ctf_fs_source_clock_class_offset_arg) {
3677 BT_CLI_LOGE_APPEND_CAUSE("Duplicate --clock-offset option\n");
3678 goto error;
3679 }
3680
3681 ctf_fs_source_clock_class_offset_arg = g_strdup(arg);
3682 if (!ctf_fs_source_clock_class_offset_arg) {
3683 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3684 goto error;
3685 }
3686 break;
3687 case OPT_CLOCK_OFFSET_NS:
3688 if (ctf_fs_source_clock_class_offset_ns_arg) {
3689 BT_CLI_LOGE_APPEND_CAUSE("Duplicate --clock-offset-ns option\n");
3690 goto error;
3691 }
3692
3693 ctf_fs_source_clock_class_offset_ns_arg = g_strdup(arg);
3694 if (!ctf_fs_source_clock_class_offset_ns_arg) {
3695 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3696 goto error;
3697 }
3698 break;
3699 case OPT_CLOCK_SECONDS:
3700 append_implicit_component_param(
3701 &implicit_text_args, "clock-seconds", "yes");
3702 implicit_text_args.exists = true;
3703 break;
3704 case OPT_COLOR:
3705 implicit_text_args.exists = true;
3706 ret = append_implicit_component_extra_param(
3707 &implicit_text_args, "color", arg);
3708 if (ret) {
3709 goto error;
3710 }
3711 break;
3712 case OPT_DEBUG_INFO:
3713 implicit_debug_info_args.exists = true;
3714 break;
3715 case OPT_DEBUG_INFO_DIR:
3716 implicit_debug_info_args.exists = true;
3717 ret = append_implicit_component_extra_param(
3718 &implicit_debug_info_args, "debug-info-dir", arg);
3719 if (ret) {
3720 goto error;
3721 }
3722 break;
3723 case OPT_DEBUG_INFO_FULL_PATH:
3724 implicit_debug_info_args.exists = true;
3725 append_implicit_component_param(
3726 &implicit_debug_info_args, "full-path", "yes");
3727 break;
3728 case OPT_DEBUG_INFO_TARGET_PREFIX:
3729 implicit_debug_info_args.exists = true;
3730 ret = append_implicit_component_extra_param(
3731 &implicit_debug_info_args,
3732 "target-prefix", arg);
3733 if (ret) {
3734 goto error;
3735 }
3736 break;
3737 case OPT_FIELDS:
3738 {
3739 bt_value *fields = fields_from_arg(arg);
3740
3741 if (!fields) {
3742 goto error;
3743 }
3744
3745 implicit_text_args.exists = true;
3746 ret = insert_flat_params_from_array(
3747 implicit_text_args.params_arg,
3748 fields, "field");
3749 bt_value_put_ref(fields);
3750 if (ret) {
3751 goto error;
3752 }
3753 break;
3754 }
3755 case OPT_NAMES:
3756 {
3757 bt_value *names = names_from_arg(arg);
3758
3759 if (!names) {
3760 goto error;
3761 }
3762
3763 implicit_text_args.exists = true;
3764 ret = insert_flat_params_from_array(
3765 implicit_text_args.params_arg,
3766 names, "name");
3767 bt_value_put_ref(names);
3768 if (ret) {
3769 goto error;
3770 }
3771 break;
3772 }
3773 case OPT_NO_DELTA:
3774 append_implicit_component_param(
3775 &implicit_text_args, "no-delta", "yes");
3776 implicit_text_args.exists = true;
3777 break;
3778 case OPT_INPUT_FORMAT:
3779 if (got_input_format_opt) {
3780 BT_CLI_LOGE_APPEND_CAUSE("Duplicate --input-format option.");
3781 goto error;
3782 }
3783
3784 got_input_format_opt = true;
3785
3786 if (strcmp(arg, "ctf") == 0) {
3787 auto_source_discovery_restrict_plugin_name = "ctf";
3788 auto_source_discovery_restrict_component_class_name = "fs";
3789 } else if (strcmp(arg, "lttng-live") == 0) {
3790 auto_source_discovery_restrict_plugin_name = "ctf";
3791 auto_source_discovery_restrict_component_class_name = "lttng-live";
3792 implicit_lttng_live_args.exists = true;
3793 } else {
3794 BT_CLI_LOGE_APPEND_CAUSE("Unknown legacy input format:\n %s",
3795 arg);
3796 goto error;
3797 }
3798 break;
3799 case OPT_OUTPUT_FORMAT:
3800 if (got_output_format_opt) {
3801 BT_CLI_LOGE_APPEND_CAUSE("Duplicate --output-format option.");
3802 goto error;
3803 }
3804
3805 got_output_format_opt = true;
3806
3807 if (strcmp(arg, "text") == 0) {
3808 implicit_text_args.exists = true;
3809 } else if (strcmp(arg, "ctf") == 0) {
3810 implicit_ctf_output_args.exists = true;
3811 } else if (strcmp(arg, "dummy") == 0) {
3812 implicit_dummy_args.exists = true;
3813 } else if (strcmp(arg, "ctf-metadata") == 0) {
3814 print_ctf_metadata = true;
3815 } else {
3816 BT_CLI_LOGE_APPEND_CAUSE("Unknown legacy output format:\n %s",
3817 arg);
3818 goto error;
3819 }
3820 break;
3821 case OPT_OUTPUT:
3822 if (output) {
3823 BT_CLI_LOGE_APPEND_CAUSE("Duplicate --output option");
3824 goto error;
3825 }
3826
3827 output = strdup(arg);
3828 if (!output) {
3829 BT_CLI_LOGE_APPEND_CAUSE_OOM();
3830 goto error;
3831 }
3832 break;
3833 case OPT_RUN_ARGS:
3834 if (print_run_args_0) {
3835 BT_CLI_LOGE_APPEND_CAUSE("Cannot specify --run-args and --run-args-0.");
3836 goto error;
3837 }
3838
3839 print_run_args = true;
3840 break;
3841 case OPT_RUN_ARGS_0:
3842 if (print_run_args) {
3843 BT_CLI_LOGE_APPEND_CAUSE("Cannot specify --run-args and --run-args-0.");
3844 goto error;
3845 }
3846
3847 print_run_args_0 = true;
3848 break;
3849 case OPT_STREAM_INTERSECTION:
3850 /*
3851 * Applies to all traces implementing the
3852 * babeltrace.trace-infos query.
3853 */
3854 stream_intersection_mode = true;
3855 break;
3856 case OPT_VERBOSE:
3857 *default_log_level =
3858 logging_level_min(*default_log_level, BT_LOG_INFO);
3859 break;
3860 case OPT_DEBUG:
3861 *default_log_level =
3862 logging_level_min(*default_log_level, BT_LOG_TRACE);
3863 break;
3864 default:
3865 break;
3866 }
3867 }
3868
3869 set_auto_log_levels(default_log_level);
3870
3871 /*
3872 * Legacy behaviour: --verbose used to make the `text` output
3873 * format print more information. --verbose is now equivalent to
3874 * the INFO log level, which is why we compare to `BT_LOG_INFO`
3875 * here.
3876 */
3877 if (*default_log_level == BT_LOG_INFO) {
3878 append_implicit_component_param(&implicit_text_args,
3879 "verbose", "yes");
3880 }
3881
3882 /* Print CTF metadata or print LTTng live sessions */
3883 if (print_ctf_metadata) {
3884 const bt_value *bt_val_non_opt;
3885
3886 if (bt_value_array_is_empty(non_opts)) {
3887 BT_CLI_LOGE_APPEND_CAUSE("--output-format=ctf-metadata specified without a path.");
3888 goto error;
3889 }
3890
3891 if (bt_value_array_get_length(non_opts) > 1) {
3892 BT_CLI_LOGE_APPEND_CAUSE("Too many paths specified for --output-format=ctf-metadata.");
3893 goto error;
3894 }
3895
3896 cfg = bt_config_print_ctf_metadata_create(plugin_paths);
3897 if (!cfg) {
3898 goto error;
3899 }
3900
3901 bt_val_non_opt = bt_value_array_borrow_element_by_index_const(non_opts, 0);
3902 g_string_assign(cfg->cmd_data.print_ctf_metadata.path,
3903 bt_value_string_get(bt_val_non_opt));
3904
3905 if (output) {
3906 g_string_assign(
3907 cfg->cmd_data.print_ctf_metadata.output_path,
3908 output);
3909 }
3910
3911 goto end;
3912 }
3913
3914 /*
3915 * If -o ctf was specified, make sure an output path (--output)
3916 * was also specified. --output does not imply -o ctf because
3917 * it's also used for the default, implicit -o text if -o ctf
3918 * is not specified.
3919 */
3920 if (implicit_ctf_output_args.exists) {
3921 if (!output) {
3922 BT_CLI_LOGE_APPEND_CAUSE("--output-format=ctf specified without --output (trace output path).");
3923 goto error;
3924 }
3925
3926 /*
3927 * At this point we know that -o ctf AND --output were
3928 * specified. Make sure that no options were specified
3929 * which would imply -o text because --output would be
3930 * ambiguous in this case. For example, this is wrong:
3931 *
3932 * babeltrace2 --names=all -o ctf --output=/tmp/path my-trace
3933 *
3934 * because --names=all implies -o text, and --output
3935 * could apply to both the sink.text.pretty and
3936 * sink.ctf.fs implicit components.
3937 */
3938 if (implicit_text_args.exists) {
3939 BT_CLI_LOGE_APPEND_CAUSE("Ambiguous --output option: --output-format=ctf specified but another option implies --output-format=text.");
3940 goto error;
3941 }
3942 }
3943
3944 /*
3945 * If -o dummy and -o ctf were not specified, and if there are
3946 * no explicit sink components, then use an implicit
3947 * `sink.text.pretty` component.
3948 */
3949 if (!implicit_dummy_args.exists && !implicit_ctf_output_args.exists &&
3950 !sink_names) {
3951 implicit_text_args.exists = true;
3952 }
3953
3954 /*
3955 * Set implicit `sink.text.pretty` or `sink.ctf.fs` component's
3956 * `path` parameter if --output was specified.
3957 */
3958 if (output) {
3959 if (implicit_text_args.exists) {
3960 append_implicit_component_extra_param(&implicit_text_args,
3961 "path", output);
3962 } else if (implicit_ctf_output_args.exists) {
3963 append_implicit_component_extra_param(&implicit_ctf_output_args,
3964 "path", output);
3965 }
3966 }
3967
3968 /* Decide where the non-option argument(s) go */
3969 if (bt_value_array_get_length(non_opts) > 0) {
3970 if (implicit_lttng_live_args.exists) {
3971 const bt_value *bt_val_non_opt;
3972
3973 if (bt_value_array_get_length(non_opts) > 1) {
3974 BT_CLI_LOGE_APPEND_CAUSE("Too many URLs specified for --input-format=lttng-live.");
3975 goto error;
3976 }
3977
3978 bt_val_non_opt = bt_value_array_borrow_element_by_index_const(non_opts, 0);
3979 lttng_live_url_parts =
3980 bt_common_parse_lttng_live_url(bt_value_string_get(bt_val_non_opt),
3981 error_buf, sizeof(error_buf));
3982 if (!lttng_live_url_parts.proto) {
3983 BT_CLI_LOGE_APPEND_CAUSE("Invalid LTTng live URL format: %s.",
3984 error_buf);
3985 goto error;
3986 }
3987
3988 if (!lttng_live_url_parts.session_name) {
3989 /* Print LTTng live sessions */
3990 cfg = bt_config_print_lttng_live_sessions_create(
3991 plugin_paths);
3992 if (!cfg) {
3993 goto error;
3994 }
3995
3996 g_string_assign(cfg->cmd_data.print_lttng_live_sessions.url,
3997 bt_value_string_get(bt_val_non_opt));
3998
3999 if (output) {
4000 g_string_assign(
4001 cfg->cmd_data.print_lttng_live_sessions.output_path,
4002 output);
4003 }
4004
4005 goto end;
4006 }
4007
4008 live_inputs_array_val = bt_value_array_create();
4009 if (!live_inputs_array_val) {
4010 BT_CLI_LOGE_APPEND_CAUSE_OOM();
4011 goto error;
4012 }
4013
4014 if (bt_value_array_append_string_element(
4015 live_inputs_array_val,
4016 bt_value_string_get(bt_val_non_opt))) {
4017 BT_CLI_LOGE_APPEND_CAUSE_OOM();
4018 goto error;
4019 }
4020
4021 ret = append_parameter_to_args(
4022 implicit_lttng_live_args.extra_params,
4023 "inputs", live_inputs_array_val);
4024 if (ret) {
4025 goto error;
4026 }
4027
4028 ret = append_implicit_component_extra_param(
4029 &implicit_lttng_live_args,
4030 "session-not-found-action", "end");
4031 if (ret) {
4032 goto error;
4033 }
4034 } else {
4035 int status;
4036 size_t plugin_count;
4037 const bt_plugin **plugins;
4038 const bt_plugin *plugin;
4039
4040 status = require_loaded_plugins(plugin_paths);
4041 if (status != 0) {
4042 goto error;
4043 }
4044
4045 if (auto_source_discovery_restrict_plugin_name) {
4046 plugin_count = 1;
4047 plugin = find_loaded_plugin(auto_source_discovery_restrict_plugin_name);
4048 plugins = &plugin;
4049 } else {
4050 plugin_count = get_loaded_plugins_count();
4051 plugins = borrow_loaded_plugins();
4052 }
4053
4054 status = auto_discover_source_components(non_opts, plugins, plugin_count,
4055 auto_source_discovery_restrict_component_class_name,
4056 *default_log_level, &auto_disc, interrupter);
4057
4058 if (status != 0) {
4059 if (status == AUTO_SOURCE_DISCOVERY_STATUS_INTERRUPTED) {
4060 BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(
4061 "Babeltrace CLI", "Automatic source discovery interrupted by the user");
4062 }
4063 goto error;
4064 }
4065
4066 status = create_implicit_component_args_from_auto_discovered_sources(
4067 &auto_disc, non_opt_params, non_opt_loglevels,
4068 discovered_source_args);
4069 if (status != 0) {
4070 goto error;
4071 }
4072 }
4073 }
4074
4075 /* If --clock-offset was given, apply it to any src.ctf.fs component. */
4076 if (ctf_fs_source_clock_class_offset_arg) {
4077 int n;
4078
4079 n = append_multiple_implicit_components_param(
4080 discovered_source_args, "source.ctf.fs", "clock-class-offset-s",
4081 ctf_fs_source_clock_class_offset_arg);
4082
4083 if (n == 0) {
4084 BT_CLI_LOGE_APPEND_CAUSE("--clock-offset specified, but no source.ctf.fs component instantiated.");
4085 goto error;
4086 }
4087 }
4088
4089 /* If --clock-offset-ns was given, apply it to any src.ctf.fs component. */
4090 if (ctf_fs_source_clock_class_offset_ns_arg) {
4091 int n;
4092
4093 n = append_multiple_implicit_components_param(
4094 discovered_source_args, "source.ctf.fs", "clock-class-offset-ns",
4095 ctf_fs_source_clock_class_offset_ns_arg);
4096
4097 if (n == 0) {
4098 BT_CLI_LOGE_APPEND_CAUSE("--clock-offset-ns specified, but no source.ctf.fs component instantiated.");
4099 goto error;
4100 }
4101 }
4102
4103 /*
4104 * If the implicit `source.ctf.lttng-live` component exists,
4105 * make sure there's at least one non-option argument (which is
4106 * the URL).
4107 */
4108 if (implicit_lttng_live_args.exists && bt_value_array_is_empty(non_opts)) {
4109 BT_CLI_LOGE_APPEND_CAUSE("Missing URL for implicit `%s` component.",
4110 implicit_lttng_live_args.comp_arg->str);
4111 goto error;
4112 }
4113
4114 /* Assign names to implicit components */
4115 for (i = 0; i < discovered_source_args->len; i++) {
4116 struct implicit_component_args *args;
4117 int j;
4118
4119 args = discovered_source_args->pdata[i];
4120
4121 g_string_printf(auto_disc_comp_name, "auto-disc-%s", args->comp_arg->str);
4122
4123 /* Give it a name like `auto-disc-src-ctf-fs`. */
4124 for (j = 0; j < auto_disc_comp_name->len; j++) {
4125 if (auto_disc_comp_name->str[j] == '.') {
4126 auto_disc_comp_name->str[j] = '-';
4127 }
4128 }
4129
4130 ret = assign_name_to_implicit_component(args,
4131 auto_disc_comp_name->str, all_names, &source_names, true);
4132 if (ret) {
4133 goto error;
4134 }
4135 }
4136
4137 ret = assign_name_to_implicit_component(&implicit_lttng_live_args,
4138 "lttng-live", all_names, &source_names, true);
4139 if (ret) {
4140 goto error;
4141 }
4142
4143 ret = assign_name_to_implicit_component(&implicit_text_args,
4144 "pretty", all_names, &sink_names, true);
4145 if (ret) {
4146 goto error;
4147 }
4148
4149 ret = assign_name_to_implicit_component(&implicit_ctf_output_args,
4150 "sink-ctf-fs", all_names, &sink_names, true);
4151 if (ret) {
4152 goto error;
4153 }
4154
4155 ret = assign_name_to_implicit_component(&implicit_dummy_args,
4156 "dummy", all_names, &sink_names, true);
4157 if (ret) {
4158 goto error;
4159 }
4160
4161 ret = assign_name_to_implicit_component(&implicit_muxer_args,
4162 "muxer", all_names, NULL, false);
4163 if (ret) {
4164 goto error;
4165 }
4166
4167 ret = assign_name_to_implicit_component(&implicit_trimmer_args,
4168 "trimmer", all_names, NULL, false);
4169 if (ret) {
4170 goto error;
4171 }
4172
4173 ret = assign_name_to_implicit_component(&implicit_debug_info_args,
4174 "debug-info", all_names, NULL, false);
4175 if (ret) {
4176 goto error;
4177 }
4178
4179 /* Make sure there's at least one source and one sink */
4180 if (!source_names) {
4181 BT_CLI_LOGE_APPEND_CAUSE("No source component.");
4182 goto error;
4183 }
4184
4185 if (!sink_names) {
4186 BT_CLI_LOGE_APPEND_CAUSE("No sink component.");
4187 goto error;
4188 }
4189
4190 /* Make sure there's a single sink component */
4191 if (g_list_length(sink_names) != 1) {
4192 BT_CLI_LOGE_APPEND_CAUSE(
4193 "More than one sink component specified.");
4194 goto error;
4195 }
4196
4197 /*
4198 * Prepend the muxer, the trimmer, and the debug info to the
4199 * filter chain so that we have:
4200 *
4201 * sources -> muxer -> [trimmer] -> [debug info] ->
4202 * [user filters] -> sinks
4203 */
4204 if (implicit_debug_info_args.exists) {
4205 if (g_list_prepend_gstring(&filter_names,
4206 implicit_debug_info_args.name_arg->str)) {
4207 goto error;
4208 }
4209 }
4210
4211 if (implicit_trimmer_args.exists) {
4212 if (g_list_prepend_gstring(&filter_names,
4213 implicit_trimmer_args.name_arg->str)) {
4214 goto error;
4215 }
4216 }
4217
4218 if (g_list_prepend_gstring(&filter_names,
4219 implicit_muxer_args.name_arg->str)) {
4220 goto error;
4221 }
4222
4223 /*
4224 * Append the equivalent run arguments for the implicit
4225 * components.
4226 */
4227 for (i = 0; i < discovered_source_args->len; i++) {
4228 struct implicit_component_args *args =
4229 discovered_source_args->pdata[i];
4230
4231 ret = append_run_args_for_implicit_component(args, run_args);
4232 if (ret) {
4233 goto error;
4234 }
4235 }
4236
4237 ret = append_run_args_for_implicit_component(&implicit_lttng_live_args,
4238 run_args);
4239 if (ret) {
4240 goto error;
4241 }
4242
4243 ret = append_run_args_for_implicit_component(&implicit_text_args,
4244 run_args);
4245 if (ret) {
4246 goto error;
4247 }
4248
4249 ret = append_run_args_for_implicit_component(&implicit_ctf_output_args,
4250 run_args);
4251 if (ret) {
4252 goto error;
4253 }
4254
4255 ret = append_run_args_for_implicit_component(&implicit_dummy_args,
4256 run_args);
4257 if (ret) {
4258 goto error;
4259 }
4260
4261 ret = append_run_args_for_implicit_component(&implicit_muxer_args,
4262 run_args);
4263 if (ret) {
4264 goto error;
4265 }
4266
4267 ret = append_run_args_for_implicit_component(&implicit_trimmer_args,
4268 run_args);
4269 if (ret) {
4270 goto error;
4271 }
4272
4273 ret = append_run_args_for_implicit_component(&implicit_debug_info_args,
4274 run_args);
4275 if (ret) {
4276 goto error;
4277 }
4278
4279 /* Auto-connect components */
4280 ret = convert_auto_connect(run_args, source_names, filter_names,
4281 sink_names);
4282 if (ret) {
4283 BT_CLI_LOGE_APPEND_CAUSE("Cannot auto-connect components.");
4284 goto error;
4285 }
4286
4287 /*
4288 * We have all the run command arguments now. Depending on
4289 * --run-args, we pass this to the run command or print them
4290 * here.
4291 */
4292 if (print_run_args || print_run_args_0) {
4293 if (stream_intersection_mode) {
4294 BT_CLI_LOGE_APPEND_CAUSE("Cannot specify --stream-intersection with --run-args or --run-args-0.");
4295 goto error;
4296 }
4297
4298 for (i = 0; i < bt_value_array_get_length(run_args); i++) {
4299 const bt_value *arg_value =
4300 bt_value_array_borrow_element_by_index(run_args,
4301 i);
4302 const char *arg;
4303 GString *quoted = NULL;
4304 const char *arg_to_print;
4305
4306 BT_ASSERT(arg_value);
4307 arg = bt_value_string_get(arg_value);
4308
4309 if (print_run_args) {
4310 quoted = bt_common_shell_quote(arg, true);
4311 if (!quoted) {
4312 goto error;
4313 }
4314
4315 arg_to_print = quoted->str;
4316 } else {
4317 arg_to_print = arg;
4318 }
4319
4320 printf("%s", arg_to_print);
4321
4322 if (quoted) {
4323 g_string_free(quoted, TRUE);
4324 }
4325
4326 if (i < bt_value_array_get_length(run_args) - 1) {
4327 if (print_run_args) {
4328 putchar(' ');
4329 } else {
4330 putchar('\0');
4331 }
4332 }
4333 }
4334
4335 *retcode = -1;
4336 BT_OBJECT_PUT_REF_AND_RESET(cfg);
4337 goto end;
4338 }
4339
4340 cfg = bt_config_run_from_args_array(run_args, retcode,
4341 plugin_paths, *default_log_level);
4342 if (!cfg) {
4343 goto error;
4344 }
4345
4346 cfg->cmd_data.run.stream_intersection_mode = stream_intersection_mode;
4347 goto end;
4348
4349 error:
4350 *retcode = 1;
4351 BT_OBJECT_PUT_REF_AND_RESET(cfg);
4352
4353 end:
4354 bt_argpar_parse_ret_fini(&argpar_parse_ret);
4355
4356 free(output);
4357
4358 if (component_arg_for_run) {
4359 g_string_free(component_arg_for_run, TRUE);
4360 }
4361
4362 if (name_gstr) {
4363 g_string_free(name_gstr, TRUE);
4364 }
4365
4366 bt_value_put_ref(live_inputs_array_val);
4367 bt_value_put_ref(run_args);
4368 bt_value_put_ref(all_names);
4369 destroy_glist_of_gstring(source_names);
4370 destroy_glist_of_gstring(filter_names);
4371 destroy_glist_of_gstring(sink_names);
4372 bt_value_put_ref(non_opt_params);
4373 bt_value_put_ref(non_opt_loglevels);
4374 bt_value_put_ref(non_opts);
4375 finalize_implicit_component_args(&implicit_ctf_output_args);
4376 finalize_implicit_component_args(&implicit_lttng_live_args);
4377 finalize_implicit_component_args(&implicit_dummy_args);
4378 finalize_implicit_component_args(&implicit_text_args);
4379 finalize_implicit_component_args(&implicit_debug_info_args);
4380 finalize_implicit_component_args(&implicit_muxer_args);
4381 finalize_implicit_component_args(&implicit_trimmer_args);
4382 bt_common_destroy_lttng_live_url_parts(&lttng_live_url_parts);
4383 auto_source_discovery_fini(&auto_disc);
4384
4385 if (discovered_source_args) {
4386 g_ptr_array_free(discovered_source_args, TRUE);
4387 }
4388
4389 g_free(ctf_fs_source_clock_class_offset_arg);
4390 g_free(ctf_fs_source_clock_class_offset_ns_arg);
4391
4392 if (auto_disc_comp_name) {
4393 g_string_free(auto_disc_comp_name, TRUE);
4394 }
4395
4396 return cfg;
4397 }
4398
4399 /*
4400 * Prints the Babeltrace 2.x general usage.
4401 */
4402 static
4403 void print_gen_usage(FILE *fp)
4404 {
4405 fprintf(fp, "Usage: babeltrace2 [GENERAL OPTIONS] [COMMAND] [COMMAND ARGUMENTS]\n");
4406 fprintf(fp, "\n");
4407 fprintf(fp, "General options:\n");
4408 fprintf(fp, "\n");
4409 fprintf(fp, " -d, --debug Enable debug mode (same as --log-level=T)\n");
4410 fprintf(fp, " -h, --help Show this help and quit\n");
4411 fprintf(fp, " -l, --log-level=LVL Set the default log level to LVL (`N`, `T`, `D`,\n");
4412 fprintf(fp, " `I`, `W` (default), `E`, or `F`)\n");
4413 fprintf(fp, " --omit-home-plugin-path Omit home plugins from plugin search path\n");
4414 fprintf(fp, " (~/.local/lib/babeltrace2/plugins)\n");
4415 fprintf(fp, " --omit-system-plugin-path Omit system plugins from plugin search path\n");
4416 fprintf(fp, " --plugin-path=PATH[:PATH]... Add PATH to the list of paths from which\n");
4417 fprintf(fp, " dynamic plugins can be loaded\n");
4418 fprintf(fp, " -v, --verbose Enable verbose mode (same as --log-level=I)\n");
4419 fprintf(fp, " -V, --version Show version and quit\n");
4420 fprintf(fp, "\n");
4421 fprintf(fp, "Available commands:\n");
4422 fprintf(fp, "\n");
4423 fprintf(fp, " convert Convert and trim traces (default)\n");
4424 fprintf(fp, " help Get help for a plugin or a component class\n");
4425 fprintf(fp, " list-plugins List available plugins and their content\n");
4426 fprintf(fp, " query Query objects from a component class\n");
4427 fprintf(fp, " run Build a processing graph and run it\n");
4428 fprintf(fp, "\n");
4429 fprintf(fp, "Use `babeltrace2 COMMAND --help` to show the help of COMMAND.\n");
4430 }
4431
4432 struct bt_config *bt_config_cli_args_create(int argc, const char *argv[],
4433 int *retcode, bool omit_system_plugin_path,
4434 bool omit_home_plugin_path,
4435 const bt_value *initial_plugin_paths,
4436 const bt_interrupter *interrupter)
4437 {
4438 struct bt_config *config = NULL;
4439 int i;
4440 int top_level_argc;
4441 const char **top_level_argv;
4442 int command_argc = -1;
4443 const char **command_argv = NULL;
4444 const char *command_name = NULL;
4445 int default_log_level = -1;
4446 struct bt_argpar_parse_ret argpar_parse_ret = { 0 };
4447 bt_value *plugin_paths = NULL;
4448
4449 /* Top-level option descriptions. */
4450 static const struct bt_argpar_opt_descr descrs[] = {
4451 { OPT_DEBUG, 'd', "debug", false },
4452 { OPT_HELP, 'h', "help", false },
4453 { OPT_LOG_LEVEL, 'l', "log-level", true },
4454 { OPT_VERBOSE, 'v', "verbose", false },
4455 { OPT_VERSION, 'V', "version", false},
4456 { OPT_OMIT_HOME_PLUGIN_PATH, '\0', "omit-home-plugin-path", false },
4457 { OPT_OMIT_SYSTEM_PLUGIN_PATH, '\0', "omit-system-plugin-path", false },
4458 { OPT_PLUGIN_PATH, '\0', "plugin-path", true },
4459 BT_ARGPAR_OPT_DESCR_SENTINEL
4460 };
4461
4462 enum command_type {
4463 COMMAND_TYPE_NONE = -1,
4464 COMMAND_TYPE_RUN = 0,
4465 COMMAND_TYPE_CONVERT,
4466 COMMAND_TYPE_LIST_PLUGINS,
4467 COMMAND_TYPE_HELP,
4468 COMMAND_TYPE_QUERY,
4469 } command_type = COMMAND_TYPE_NONE;
4470
4471 *retcode = -1;
4472
4473 if (!initial_plugin_paths) {
4474 plugin_paths = bt_value_array_create();
4475 if (!plugin_paths) {
4476 goto error;
4477 }
4478 } else {
4479 bt_value_copy_status copy_status = bt_value_copy(
4480 initial_plugin_paths, &plugin_paths);
4481 if (copy_status) {
4482 goto error;
4483 }
4484 }
4485
4486 BT_ASSERT(plugin_paths);
4487
4488 /*
4489 * The `BABELTRACE_PLUGIN_PATH` paths take precedence over the
4490 * `--plugin-path` option's paths, so append it now before
4491 * parsing the general options.
4492 */
4493 if (append_env_var_plugin_paths(plugin_paths)) {
4494 goto error;
4495 }
4496
4497 if (argc <= 1) {
4498 print_version();
4499 puts("");
4500 print_gen_usage(stdout);
4501 goto end;
4502 }
4503
4504 /* Skip first argument, the name of the program. */
4505 top_level_argc = argc - 1;
4506 top_level_argv = argv + 1;
4507 argpar_parse_ret = bt_argpar_parse(top_level_argc, top_level_argv,
4508 descrs, false);
4509
4510 if (argpar_parse_ret.error) {
4511 BT_CLI_LOGE_APPEND_CAUSE(
4512 "While parsing command-line arguments: %s",
4513 argpar_parse_ret.error->str);
4514 goto error;
4515 }
4516
4517 for (i = 0; i < argpar_parse_ret.items->len; i++) {
4518 struct bt_argpar_item *item;
4519
4520 item = g_ptr_array_index(argpar_parse_ret.items, i);
4521
4522 if (item->type == BT_ARGPAR_ITEM_TYPE_OPT) {
4523 struct bt_argpar_item_opt *item_opt =
4524 (struct bt_argpar_item_opt *) item;
4525
4526 switch (item_opt->descr->id) {
4527 case OPT_DEBUG:
4528 default_log_level =
4529 logging_level_min(default_log_level, BT_LOG_TRACE);
4530 break;
4531 case OPT_VERBOSE:
4532 default_log_level =
4533 logging_level_min(default_log_level, BT_LOG_INFO);
4534 break;
4535 case OPT_LOG_LEVEL:
4536 {
4537 int level = bt_log_get_level_from_string(item_opt->arg);
4538
4539 if (level < 0) {
4540 BT_CLI_LOGE_APPEND_CAUSE(
4541 "Invalid argument for --log-level option:\n %s",
4542 item_opt->arg);
4543 goto error;
4544 }
4545
4546 default_log_level =
4547 logging_level_min(default_log_level, level);
4548 break;
4549 }
4550 case OPT_PLUGIN_PATH:
4551 if (bt_config_append_plugin_paths_check_setuid_setgid(
4552 plugin_paths, item_opt->arg)) {
4553 goto error;
4554 }
4555 break;
4556 case OPT_OMIT_SYSTEM_PLUGIN_PATH:
4557 omit_system_plugin_path = true;
4558 break;
4559 case OPT_OMIT_HOME_PLUGIN_PATH:
4560 omit_home_plugin_path = true;
4561 break;
4562 case OPT_VERSION:
4563 print_version();
4564 goto end;
4565 case OPT_HELP:
4566 print_gen_usage(stdout);
4567 goto end;
4568 }
4569 } else if (item->type == BT_ARGPAR_ITEM_TYPE_NON_OPT) {
4570 struct bt_argpar_item_non_opt *item_non_opt =
4571 (struct bt_argpar_item_non_opt *) item;
4572 /*
4573 * First unknown argument: is it a known command
4574 * name?
4575 */
4576 command_argc =
4577 top_level_argc - item_non_opt->orig_index - 1;
4578 command_argv =
4579 &top_level_argv[item_non_opt->orig_index + 1];
4580
4581 if (strcmp(item_non_opt->arg, "convert") == 0) {
4582 command_type = COMMAND_TYPE_CONVERT;
4583 } else if (strcmp(item_non_opt->arg, "list-plugins") == 0) {
4584 command_type = COMMAND_TYPE_LIST_PLUGINS;
4585 } else if (strcmp(item_non_opt->arg, "help") == 0) {
4586 command_type = COMMAND_TYPE_HELP;
4587 } else if (strcmp(item_non_opt->arg, "query") == 0) {
4588 command_type = COMMAND_TYPE_QUERY;
4589 } else if (strcmp(item_non_opt->arg, "run") == 0) {
4590 command_type = COMMAND_TYPE_RUN;
4591 } else {
4592 /*
4593 * Non-option argument, but not a known
4594 * command name: assume the default
4595 * `convert` command.
4596 */
4597 command_type = COMMAND_TYPE_CONVERT;
4598 command_name = "convert";
4599 command_argc++;
4600 command_argv--;
4601 }
4602 break;
4603 }
4604 }
4605
4606 if (command_type == COMMAND_TYPE_NONE) {
4607 if (argpar_parse_ret.ingested_orig_args == top_level_argc) {
4608 /*
4609 * We only got non-help, non-version general options
4610 * like --verbose and --debug, without any other
4611 * arguments, so we can't do anything useful: print the
4612 * usage and quit.
4613 */
4614 print_gen_usage(stdout);
4615 goto end;
4616 }
4617
4618 /*
4619 * We stopped on an unknown option argument (and therefore
4620 * didn't see a command name). Assume `convert` command.
4621 */
4622 command_type = COMMAND_TYPE_CONVERT;
4623 command_name = "convert";
4624 command_argc =
4625 top_level_argc - argpar_parse_ret.ingested_orig_args;
4626 command_argv =
4627 &top_level_argv[argpar_parse_ret.ingested_orig_args];
4628 }
4629
4630 BT_ASSERT(command_argv);
4631 BT_ASSERT(command_argc >= 0);
4632
4633 /*
4634 * For all commands other than `convert`, we now know the log level to
4635 * use, so we can apply it with `set_auto_log_levels`.
4636 *
4637 * The convert command has `--debug` and `--verbose` arguments that are
4638 * equivalent to the top-level arguments of the same name. So after it
4639 * has parsed its arguments, `bt_config_convert_from_args` calls
4640 * `set_auto_log_levels` itself.
4641 */
4642 if (command_type != COMMAND_TYPE_CONVERT) {
4643 set_auto_log_levels(&default_log_level);
4644 }
4645
4646 /*
4647 * At this point, `plugin_paths` contains the initial plugin
4648 * paths, the paths from the `BABELTRACE_PLUGIN_PATH` paths, and
4649 * the paths from the `--plugin-path` option.
4650 *
4651 * Now append the user and system plugin paths.
4652 */
4653 if (append_home_and_system_plugin_paths(plugin_paths,
4654 omit_system_plugin_path, omit_home_plugin_path)) {
4655 goto error;
4656 }
4657
4658 switch (command_type) {
4659 case COMMAND_TYPE_RUN:
4660 config = bt_config_run_from_args(command_argc, command_argv,
4661 retcode, plugin_paths,
4662 default_log_level);
4663 break;
4664 case COMMAND_TYPE_CONVERT:
4665 config = bt_config_convert_from_args(command_argc, command_argv,
4666 retcode, plugin_paths, &default_log_level, interrupter);
4667 break;
4668 case COMMAND_TYPE_LIST_PLUGINS:
4669 config = bt_config_list_plugins_from_args(command_argc,
4670 command_argv, retcode, plugin_paths);
4671 break;
4672 case COMMAND_TYPE_HELP:
4673 config = bt_config_help_from_args(command_argc,
4674 command_argv, retcode, plugin_paths,
4675 default_log_level);
4676 break;
4677 case COMMAND_TYPE_QUERY:
4678 config = bt_config_query_from_args(command_argc,
4679 command_argv, retcode, plugin_paths,
4680 default_log_level);
4681 break;
4682 default:
4683 abort();
4684 }
4685
4686 if (config) {
4687 BT_ASSERT(default_log_level >= BT_LOG_TRACE);
4688 config->log_level = default_log_level;
4689 config->command_name = command_name;
4690 }
4691
4692 goto end;
4693
4694 error:
4695 *retcode = 1;
4696
4697 end:
4698 bt_argpar_parse_ret_fini(&argpar_parse_ret);
4699 bt_value_put_ref(plugin_paths);
4700 return config;
4701 }
BabelTrace - Trace Format Babel Tower
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