Line data Source code
1 : /*-------------------------------------------------------------------------
2 : *
3 : * pg_restore.c
4 : * pg_restore is an utility extracting postgres database definitions
5 : * from a backup archive created by pg_dump/pg_dumpall using the archiver
6 : * interface.
7 : *
8 : * pg_restore will read the backup archive and
9 : * dump out a script that reproduces
10 : * the schema of the database in terms of
11 : * user-defined types
12 : * user-defined functions
13 : * tables
14 : * indexes
15 : * aggregates
16 : * operators
17 : * ACL - grant/revoke
18 : *
19 : * the output script is SQL that is understood by PostgreSQL
20 : *
21 : * Basic process in a restore operation is:
22 : *
23 : * Open the Archive and read the TOC.
24 : * Set flags in TOC entries, and *maybe* reorder them.
25 : * Generate script to stdout
26 : * Exit
27 : *
28 : * Copyright (c) 2000, Philip Warner
29 : * Rights are granted to use this software in any way so long
30 : * as this notice is not removed.
31 : *
32 : * The author is not responsible for loss or damages that may
33 : * result from its use.
34 : *
35 : *
36 : * IDENTIFICATION
37 : * src/bin/pg_dump/pg_restore.c
38 : *
39 : *-------------------------------------------------------------------------
40 : */
41 : #include "postgres_fe.h"
42 :
43 : #include <ctype.h>
44 : #include <sys/stat.h>
45 : #ifdef HAVE_TERMIOS_H
46 : #include <termios.h>
47 : #endif
48 :
49 : #include "common/string.h"
50 : #include "connectdb.h"
51 : #include "fe_utils/option_utils.h"
52 : #include "fe_utils/string_utils.h"
53 : #include "filter.h"
54 : #include "getopt_long.h"
55 : #include "parallel.h"
56 : #include "pg_backup_utils.h"
57 :
58 : static void usage(const char *progname);
59 : static void read_restore_filters(const char *filename, RestoreOptions *opts);
60 : static bool file_exists_in_directory(const char *dir, const char *filename);
61 : static int restore_one_database(const char *inputFileSpec, RestoreOptions *opts,
62 : int numWorkers, bool append_data, int num);
63 : static int read_one_statement(StringInfo inBuf, FILE *pfile);
64 : static int restore_all_databases(PGconn *conn, const char *dumpdirpath,
65 : SimpleStringList db_exclude_patterns, RestoreOptions *opts, int numWorkers);
66 : static int process_global_sql_commands(PGconn *conn, const char *dumpdirpath,
67 : const char *outfile);
68 : static void copy_or_print_global_file(const char *outfile, FILE *pfile);
69 : static int get_dbnames_list_to_restore(PGconn *conn,
70 : SimplePtrList *dbname_oid_list,
71 : SimpleStringList db_exclude_patterns);
72 : static int get_dbname_oid_list_from_mfile(const char *dumpdirpath,
73 : SimplePtrList *dbname_oid_list);
74 :
75 : /*
76 : * Stores a database OID and the corresponding name.
77 : */
78 : typedef struct DbOidName
79 : {
80 : Oid oid;
81 : char str[FLEXIBLE_ARRAY_MEMBER]; /* null-terminated string here */
82 : } DbOidName;
83 :
84 :
85 : int
86 200 : main(int argc, char **argv)
87 : {
88 : RestoreOptions *opts;
89 : int c;
90 200 : int numWorkers = 1;
91 : char *inputFileSpec;
92 200 : bool data_only = false;
93 200 : bool schema_only = false;
94 200 : int n_errors = 0;
95 200 : bool globals_only = false;
96 200 : SimpleStringList db_exclude_patterns = {NULL, NULL};
97 : static int disable_triggers = 0;
98 : static int enable_row_security = 0;
99 : static int if_exists = 0;
100 : static int no_data_for_failed_tables = 0;
101 : static int outputNoTableAm = 0;
102 : static int outputNoTablespaces = 0;
103 : static int use_setsessauth = 0;
104 : static int no_comments = 0;
105 : static int no_data = 0;
106 : static int no_policies = 0;
107 : static int no_publications = 0;
108 : static int no_schema = 0;
109 : static int no_security_labels = 0;
110 : static int no_statistics = 0;
111 : static int no_subscriptions = 0;
112 : static int strict_names = 0;
113 : static int statistics_only = 0;
114 : static int with_data = 0;
115 : static int with_schema = 0;
116 : static int with_statistics = 0;
117 :
118 200 : struct option cmdopts[] = {
119 : {"clean", 0, NULL, 'c'},
120 : {"create", 0, NULL, 'C'},
121 : {"data-only", 0, NULL, 'a'},
122 : {"globals-only", 0, NULL, 'g'},
123 : {"dbname", 1, NULL, 'd'},
124 : {"exit-on-error", 0, NULL, 'e'},
125 : {"exclude-schema", 1, NULL, 'N'},
126 : {"file", 1, NULL, 'f'},
127 : {"format", 1, NULL, 'F'},
128 : {"function", 1, NULL, 'P'},
129 : {"host", 1, NULL, 'h'},
130 : {"index", 1, NULL, 'I'},
131 : {"jobs", 1, NULL, 'j'},
132 : {"list", 0, NULL, 'l'},
133 : {"no-privileges", 0, NULL, 'x'},
134 : {"no-acl", 0, NULL, 'x'},
135 : {"no-owner", 0, NULL, 'O'},
136 : {"no-reconnect", 0, NULL, 'R'},
137 : {"port", 1, NULL, 'p'},
138 : {"no-password", 0, NULL, 'w'},
139 : {"password", 0, NULL, 'W'},
140 : {"schema", 1, NULL, 'n'},
141 : {"schema-only", 0, NULL, 's'},
142 : {"superuser", 1, NULL, 'S'},
143 : {"table", 1, NULL, 't'},
144 : {"trigger", 1, NULL, 'T'},
145 : {"use-list", 1, NULL, 'L'},
146 : {"username", 1, NULL, 'U'},
147 : {"verbose", 0, NULL, 'v'},
148 : {"single-transaction", 0, NULL, '1'},
149 :
150 : /*
151 : * the following options don't have an equivalent short option letter
152 : */
153 : {"disable-triggers", no_argument, &disable_triggers, 1},
154 : {"enable-row-security", no_argument, &enable_row_security, 1},
155 : {"if-exists", no_argument, &if_exists, 1},
156 : {"no-data-for-failed-tables", no_argument, &no_data_for_failed_tables, 1},
157 : {"no-table-access-method", no_argument, &outputNoTableAm, 1},
158 : {"no-tablespaces", no_argument, &outputNoTablespaces, 1},
159 : {"role", required_argument, NULL, 2},
160 : {"section", required_argument, NULL, 3},
161 : {"strict-names", no_argument, &strict_names, 1},
162 : {"transaction-size", required_argument, NULL, 5},
163 : {"use-set-session-authorization", no_argument, &use_setsessauth, 1},
164 : {"no-comments", no_argument, &no_comments, 1},
165 : {"no-data", no_argument, &no_data, 1},
166 : {"no-policies", no_argument, &no_policies, 1},
167 : {"no-publications", no_argument, &no_publications, 1},
168 : {"no-schema", no_argument, &no_schema, 1},
169 : {"no-security-labels", no_argument, &no_security_labels, 1},
170 : {"no-subscriptions", no_argument, &no_subscriptions, 1},
171 : {"no-statistics", no_argument, &no_statistics, 1},
172 : {"with-data", no_argument, &with_data, 1},
173 : {"with-schema", no_argument, &with_schema, 1},
174 : {"with-statistics", no_argument, &with_statistics, 1},
175 : {"statistics-only", no_argument, &statistics_only, 1},
176 : {"filter", required_argument, NULL, 4},
177 : {"exclude-database", required_argument, NULL, 6},
178 :
179 : {NULL, 0, NULL, 0}
180 : };
181 :
182 200 : pg_logging_init(argv[0]);
183 200 : pg_logging_set_level(PG_LOG_WARNING);
184 200 : set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pg_dump"));
185 :
186 200 : init_parallel_dump_utils();
187 :
188 200 : opts = NewRestoreOptions();
189 :
190 200 : progname = get_progname(argv[0]);
191 :
192 200 : if (argc > 1)
193 : {
194 198 : if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
195 : {
196 2 : usage(progname);
197 2 : exit_nicely(0);
198 : }
199 196 : if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
200 : {
201 34 : puts("pg_restore (PostgreSQL) " PG_VERSION);
202 34 : exit_nicely(0);
203 : }
204 : }
205 :
206 882 : while ((c = getopt_long(argc, argv, "acCd:ef:F:gh:I:j:lL:n:N:Op:P:RsS:t:T:U:vwWx1",
207 : cmdopts, NULL)) != -1)
208 : {
209 730 : switch (c)
210 : {
211 4 : case 'a': /* Dump data only */
212 4 : data_only = true;
213 4 : break;
214 34 : case 'c': /* clean (i.e., drop) schema prior to create */
215 34 : opts->dropSchema = 1;
216 34 : break;
217 74 : case 'C':
218 74 : opts->createDB = 1;
219 74 : break;
220 68 : case 'd':
221 68 : opts->cparams.dbname = pg_strdup(optarg);
222 68 : break;
223 48 : case 'e':
224 48 : opts->exit_on_error = true;
225 48 : break;
226 82 : case 'f': /* output file name */
227 82 : opts->filename = pg_strdup(optarg);
228 82 : break;
229 44 : case 'F':
230 44 : if (strlen(optarg) != 0)
231 44 : opts->formatName = pg_strdup(optarg);
232 44 : break;
233 6 : case 'g':
234 : /* restore only global.dat file from directory */
235 6 : globals_only = true;
236 6 : break;
237 64 : case 'h':
238 64 : if (strlen(optarg) != 0)
239 64 : opts->cparams.pghost = pg_strdup(optarg);
240 64 : break;
241 18 : case 'j': /* number of restore jobs */
242 18 : if (!option_parse_int(optarg, "-j/--jobs", 1,
243 : PG_MAX_JOBS,
244 : &numWorkers))
245 2 : exit(1);
246 16 : break;
247 :
248 10 : case 'l': /* Dump the TOC summary */
249 10 : opts->tocSummary = 1;
250 10 : break;
251 :
252 0 : case 'L': /* input TOC summary file name */
253 0 : opts->tocFile = pg_strdup(optarg);
254 0 : break;
255 :
256 0 : case 'n': /* Dump data for this schema only */
257 0 : simple_string_list_append(&opts->schemaNames, optarg);
258 0 : break;
259 :
260 0 : case 'N': /* Do not dump data for this schema */
261 0 : simple_string_list_append(&opts->schemaExcludeNames, optarg);
262 0 : break;
263 :
264 0 : case 'O':
265 0 : opts->noOwner = 1;
266 0 : break;
267 :
268 84 : case 'p':
269 84 : if (strlen(optarg) != 0)
270 84 : opts->cparams.pgport = pg_strdup(optarg);
271 84 : break;
272 0 : case 'R':
273 : /* no-op, still accepted for backwards compatibility */
274 0 : break;
275 0 : case 'P': /* Function */
276 0 : opts->selTypes = 1;
277 0 : opts->selFunction = 1;
278 0 : simple_string_list_append(&opts->functionNames, optarg);
279 0 : break;
280 0 : case 'I': /* Index */
281 0 : opts->selTypes = 1;
282 0 : opts->selIndex = 1;
283 0 : simple_string_list_append(&opts->indexNames, optarg);
284 0 : break;
285 0 : case 'T': /* Trigger */
286 0 : opts->selTypes = 1;
287 0 : opts->selTrigger = 1;
288 0 : simple_string_list_append(&opts->triggerNames, optarg);
289 0 : break;
290 2 : case 's': /* dump schema only */
291 2 : schema_only = true;
292 2 : break;
293 0 : case 'S': /* Superuser username */
294 0 : if (strlen(optarg) != 0)
295 0 : opts->superuser = pg_strdup(optarg);
296 0 : break;
297 0 : case 't': /* Dump specified table(s) only */
298 0 : opts->selTypes = 1;
299 0 : opts->selTable = 1;
300 0 : simple_string_list_append(&opts->tableNames, optarg);
301 0 : break;
302 :
303 52 : case 'U':
304 52 : opts->cparams.username = pg_strdup(optarg);
305 52 : break;
306 :
307 58 : case 'v': /* verbose */
308 58 : opts->verbose = 1;
309 58 : pg_logging_increase_verbosity();
310 58 : break;
311 :
312 0 : case 'w':
313 0 : opts->cparams.promptPassword = TRI_NO;
314 0 : break;
315 :
316 0 : case 'W':
317 0 : opts->cparams.promptPassword = TRI_YES;
318 0 : break;
319 :
320 0 : case 'x': /* skip ACL dump */
321 0 : opts->aclsSkip = 1;
322 0 : break;
323 :
324 4 : case '1': /* Restore data in a single transaction */
325 4 : opts->single_txn = true;
326 4 : opts->exit_on_error = true;
327 4 : break;
328 :
329 2 : case 0:
330 :
331 : /*
332 : * This covers the long options without a short equivalent.
333 : */
334 2 : break;
335 :
336 0 : case 2: /* SET ROLE */
337 0 : opts->use_role = pg_strdup(optarg);
338 0 : break;
339 :
340 0 : case 3: /* section */
341 0 : set_dump_section(optarg, &(opts->dumpSections));
342 0 : break;
343 :
344 20 : case 4: /* filter */
345 20 : read_restore_filters(optarg, opts);
346 12 : break;
347 :
348 48 : case 5: /* transaction-size */
349 48 : if (!option_parse_int(optarg, "--transaction-size",
350 : 1, INT_MAX,
351 : &opts->txn_size))
352 0 : exit(1);
353 48 : opts->exit_on_error = true;
354 48 : break;
355 6 : case 6: /* database patterns to skip */
356 6 : simple_string_list_append(&db_exclude_patterns, optarg);
357 6 : break;
358 :
359 2 : default:
360 : /* getopt_long already emitted a complaint */
361 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
362 2 : exit_nicely(1);
363 : }
364 : }
365 :
366 : /* Get file name from command line */
367 152 : if (optind < argc)
368 134 : inputFileSpec = argv[optind++];
369 : else
370 18 : inputFileSpec = NULL;
371 :
372 : /* Complain if any arguments remain */
373 152 : if (optind < argc)
374 : {
375 2 : pg_log_error("too many command-line arguments (first is \"%s\")",
376 : argv[optind]);
377 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
378 2 : exit_nicely(1);
379 : }
380 :
381 : /* Complain if neither -f nor -d was specified (except if dumping TOC) */
382 150 : if (!opts->cparams.dbname && !opts->filename && !opts->tocSummary)
383 2 : pg_fatal("one of -d/--dbname and -f/--file must be specified");
384 :
385 148 : if (db_exclude_patterns.head != NULL && globals_only)
386 : {
387 2 : pg_log_error("option --exclude-database cannot be used together with -g/--globals-only");
388 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
389 2 : exit_nicely(1);
390 : }
391 :
392 : /* Should get at most one of -d and -f, else user is confused */
393 146 : if (opts->cparams.dbname)
394 : {
395 66 : if (opts->filename)
396 : {
397 2 : pg_log_error("options -d/--dbname and -f/--file cannot be used together");
398 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
399 2 : exit_nicely(1);
400 : }
401 64 : opts->useDB = 1;
402 : }
403 :
404 : /* reject conflicting "-only" options */
405 144 : if (data_only && schema_only)
406 2 : pg_fatal("options -s/--schema-only and -a/--data-only cannot be used together");
407 142 : if (schema_only && statistics_only)
408 0 : pg_fatal("options -s/--schema-only and --statistics-only cannot be used together");
409 142 : if (data_only && statistics_only)
410 0 : pg_fatal("options -a/--data-only and --statistics-only cannot be used together");
411 :
412 : /* reject conflicting "-only" and "no-" options */
413 142 : if (data_only && no_data)
414 0 : pg_fatal("options -a/--data-only and --no-data cannot be used together");
415 142 : if (schema_only && no_schema)
416 0 : pg_fatal("options -s/--schema-only and --no-schema cannot be used together");
417 142 : if (statistics_only && no_statistics)
418 0 : pg_fatal("options --statistics-only and --no-statistics cannot be used together");
419 :
420 : /* reject conflicting "with-" and "no-" options */
421 142 : if (with_data && no_data)
422 0 : pg_fatal("options --with-data and --no-data cannot be used together");
423 142 : if (with_schema && no_schema)
424 0 : pg_fatal("options --with-schema and --no-schema cannot be used together");
425 142 : if (with_statistics && no_statistics)
426 0 : pg_fatal("options --with-statistics and --no-statistics cannot be used together");
427 :
428 142 : if (data_only && opts->dropSchema)
429 2 : pg_fatal("options -c/--clean and -a/--data-only cannot be used together");
430 :
431 140 : if (opts->single_txn && opts->txn_size > 0)
432 0 : pg_fatal("options -1/--single-transaction and --transaction-size cannot be used together");
433 :
434 : /*
435 : * -C is not compatible with -1, because we can't create a database inside
436 : * a transaction block.
437 : */
438 140 : if (opts->createDB && opts->single_txn)
439 2 : pg_fatal("options -C/--create and -1/--single-transaction cannot be used together");
440 :
441 : /* Can't do single-txn mode with multiple connections */
442 138 : if (opts->single_txn && numWorkers > 1)
443 2 : pg_fatal("cannot specify both --single-transaction and multiple jobs");
444 :
445 : /*
446 : * Set derivative flags. An "-only" option may be overridden by an
447 : * explicit "with-" option; e.g. "--schema-only --with-statistics" will
448 : * include schema and statistics. Other ambiguous or nonsensical
449 : * combinations, e.g. "--schema-only --no-schema", will have already
450 : * caused an error in one of the checks above.
451 : */
452 136 : opts->dumpData = ((opts->dumpData && !schema_only && !statistics_only) ||
453 272 : (data_only || with_data)) && !no_data;
454 136 : opts->dumpSchema = ((opts->dumpSchema && !data_only && !statistics_only) ||
455 272 : (schema_only || with_schema)) && !no_schema;
456 136 : opts->dumpStatistics = ((opts->dumpStatistics && !schema_only && !data_only) ||
457 272 : (statistics_only || with_statistics)) && !no_statistics;
458 :
459 136 : opts->disable_triggers = disable_triggers;
460 136 : opts->enable_row_security = enable_row_security;
461 136 : opts->noDataForFailedTables = no_data_for_failed_tables;
462 136 : opts->noTableAm = outputNoTableAm;
463 136 : opts->noTablespace = outputNoTablespaces;
464 136 : opts->use_setsessauth = use_setsessauth;
465 136 : opts->no_comments = no_comments;
466 136 : opts->no_policies = no_policies;
467 136 : opts->no_publications = no_publications;
468 136 : opts->no_security_labels = no_security_labels;
469 136 : opts->no_subscriptions = no_subscriptions;
470 :
471 136 : if (if_exists && !opts->dropSchema)
472 2 : pg_fatal("option --if-exists requires option -c/--clean");
473 134 : opts->if_exists = if_exists;
474 134 : opts->strict_names = strict_names;
475 :
476 134 : if (opts->formatName)
477 : {
478 88 : if (pg_strcasecmp(opts->formatName, "c") == 0 ||
479 44 : pg_strcasecmp(opts->formatName, "custom") == 0)
480 24 : opts->format = archCustom;
481 40 : else if (pg_strcasecmp(opts->formatName, "d") == 0 ||
482 20 : pg_strcasecmp(opts->formatName, "directory") == 0)
483 14 : opts->format = archDirectory;
484 12 : else if (pg_strcasecmp(opts->formatName, "t") == 0 ||
485 6 : pg_strcasecmp(opts->formatName, "tar") == 0)
486 4 : opts->format = archTar;
487 4 : else if (pg_strcasecmp(opts->formatName, "p") == 0 ||
488 2 : pg_strcasecmp(opts->formatName, "plain") == 0)
489 : {
490 : /* recognize this for consistency with pg_dump */
491 0 : pg_fatal("archive format \"%s\" is not supported; please use psql",
492 : opts->formatName);
493 : }
494 : else
495 2 : pg_fatal("unrecognized archive format \"%s\"; please specify \"c\", \"d\", or \"t\"",
496 : opts->formatName);
497 : }
498 :
499 : /*
500 : * If toc.dat file is not present in the current path, then check for
501 : * global.dat. If global.dat file is present, then restore all the
502 : * databases from map.dat (if it exists), but skip restoring those
503 : * matching --exclude-database patterns.
504 : */
505 238 : if (inputFileSpec != NULL && !file_exists_in_directory(inputFileSpec, "toc.dat") &&
506 106 : file_exists_in_directory(inputFileSpec, "global.dat"))
507 16 : {
508 22 : PGconn *conn = NULL; /* Connection to restore global sql
509 : * commands. */
510 :
511 : /*
512 : * Can only use --list or --use-list options with a single database
513 : * dump.
514 : */
515 22 : if (opts->tocSummary)
516 2 : pg_fatal("option -l/--list cannot be used when restoring an archive created by pg_dumpall");
517 20 : else if (opts->tocFile)
518 0 : pg_fatal("option -L/--use-list cannot be used when restoring an archive created by pg_dumpall");
519 :
520 : /*
521 : * To restore from a pg_dumpall archive, -C (create database) option
522 : * must be specified unless we are only restoring globals.
523 : */
524 20 : if (!globals_only && opts->createDB != 1)
525 : {
526 2 : pg_log_error("-C/--create option should be specified when restoring an archive created by pg_dumpall");
527 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
528 2 : pg_log_error_hint("Individual databases can be restored using their specific archives.");
529 2 : exit_nicely(1);
530 : }
531 :
532 : /*
533 : * Connect to the database to execute global sql commands from
534 : * global.dat file.
535 : */
536 18 : if (opts->cparams.dbname)
537 : {
538 2 : conn = ConnectDatabase(opts->cparams.dbname, NULL, opts->cparams.pghost,
539 2 : opts->cparams.pgport, opts->cparams.username, TRI_DEFAULT,
540 : false, progname, NULL, NULL, NULL, NULL);
541 :
542 :
543 2 : if (!conn)
544 2 : pg_fatal("could not connect to database \"%s\"", opts->cparams.dbname);
545 : }
546 :
547 : /* If globals-only, then return from here. */
548 16 : if (globals_only)
549 : {
550 : /*
551 : * Open global.dat file and execute/append all the global sql
552 : * commands.
553 : */
554 2 : n_errors = process_global_sql_commands(conn, inputFileSpec,
555 : opts->filename);
556 :
557 2 : if (conn)
558 0 : PQfinish(conn);
559 :
560 2 : pg_log_info("database restoring skipped as -g/--globals-only option was specified");
561 : }
562 : else
563 : {
564 : /* Now restore all the databases from map.dat */
565 14 : n_errors = restore_all_databases(conn, inputFileSpec, db_exclude_patterns,
566 : opts, numWorkers);
567 : }
568 :
569 : /* Free db pattern list. */
570 16 : simple_string_list_destroy(&db_exclude_patterns);
571 : }
572 : else /* process if global.dat file does not exist. */
573 : {
574 110 : if (db_exclude_patterns.head != NULL)
575 2 : pg_fatal("option --exclude-database can be used only when restoring an archive created by pg_dumpall");
576 :
577 108 : if (globals_only)
578 2 : pg_fatal("option -g/--globals-only can be used only when restoring an archive created by pg_dumpall");
579 :
580 106 : n_errors = restore_one_database(inputFileSpec, opts, numWorkers, false, 0);
581 : }
582 :
583 : /* Done, print a summary of ignored errors during restore. */
584 122 : if (n_errors)
585 : {
586 0 : pg_log_warning("errors ignored on restore: %d", n_errors);
587 0 : return 1;
588 : }
589 :
590 122 : return 0;
591 : }
592 :
593 : /*
594 : * restore_one_database
595 : *
596 : * This will restore one database using toc.dat file.
597 : *
598 : * returns the number of errors while doing restore.
599 : */
600 : static int
601 212 : restore_one_database(const char *inputFileSpec, RestoreOptions *opts,
602 : int numWorkers, bool append_data, int num)
603 : {
604 : Archive *AH;
605 : int n_errors;
606 :
607 212 : AH = OpenArchive(inputFileSpec, opts->format);
608 :
609 212 : SetArchiveOptions(AH, NULL, opts);
610 :
611 : /*
612 : * We don't have a connection yet but that doesn't matter. The connection
613 : * is initialized to NULL and if we terminate through exit_nicely() while
614 : * it's still NULL, the cleanup function will just be a no-op. If we are
615 : * restoring multiple databases, then only update AX handle for cleanup as
616 : * the previous entry was already in the array and we had closed previous
617 : * connection, so we can use the same array slot.
618 : */
619 212 : if (!append_data || num == 0)
620 120 : on_exit_close_archive(AH);
621 : else
622 92 : replace_on_exit_close_archive(AH);
623 :
624 : /* Let the archiver know how noisy to be */
625 212 : AH->verbose = opts->verbose;
626 :
627 : /*
628 : * Whether to keep submitting sql commands as "pg_restore ... | psql ... "
629 : */
630 212 : AH->exit_on_error = opts->exit_on_error;
631 :
632 212 : if (opts->tocFile)
633 0 : SortTocFromFile(AH);
634 :
635 212 : AH->numWorkers = numWorkers;
636 :
637 212 : if (opts->tocSummary)
638 8 : PrintTOCSummary(AH);
639 : else
640 : {
641 204 : ProcessArchiveRestoreOptions(AH);
642 204 : RestoreArchive(AH, append_data);
643 : }
644 :
645 212 : n_errors = AH->n_errors;
646 :
647 : /* AH may be freed in CloseArchive? */
648 212 : CloseArchive(AH);
649 :
650 212 : return n_errors;
651 : }
652 :
653 : static void
654 2 : usage(const char *progname)
655 : {
656 2 : printf(_("%s restores PostgreSQL databases from archives created by pg_dump or pg_dumpall.\n\n"), progname);
657 2 : printf(_("Usage:\n"));
658 2 : printf(_(" %s [OPTION]... [FILE]\n"), progname);
659 :
660 2 : printf(_("\nGeneral options:\n"));
661 2 : printf(_(" -d, --dbname=NAME connect to database name\n"));
662 2 : printf(_(" -f, --file=FILENAME output file name (- for stdout)\n"));
663 2 : printf(_(" -F, --format=c|d|t backup file format (should be automatic)\n"));
664 2 : printf(_(" -l, --list print summarized TOC of the archive\n"));
665 2 : printf(_(" -v, --verbose verbose mode\n"));
666 2 : printf(_(" -V, --version output version information, then exit\n"));
667 2 : printf(_(" -?, --help show this help, then exit\n"));
668 :
669 2 : printf(_("\nOptions controlling the restore:\n"));
670 2 : printf(_(" -a, --data-only restore only the data, no schema\n"));
671 2 : printf(_(" -c, --clean clean (drop) database objects before recreating\n"));
672 2 : printf(_(" -C, --create create the target database\n"));
673 2 : printf(_(" -e, --exit-on-error exit on error, default is to continue\n"));
674 2 : printf(_(" -g, --globals-only restore only global objects, no databases\n"));
675 2 : printf(_(" -I, --index=NAME restore named index\n"));
676 2 : printf(_(" -j, --jobs=NUM use this many parallel jobs to restore\n"));
677 2 : printf(_(" -L, --use-list=FILENAME use table of contents from this file for\n"
678 : " selecting/ordering output\n"));
679 2 : printf(_(" -n, --schema=NAME restore only objects in this schema\n"));
680 2 : printf(_(" -N, --exclude-schema=NAME do not restore objects in this schema\n"));
681 2 : printf(_(" -O, --no-owner skip restoration of object ownership\n"));
682 2 : printf(_(" -P, --function=NAME(args) restore named function\n"));
683 2 : printf(_(" -s, --schema-only restore only the schema, no data\n"));
684 2 : printf(_(" -S, --superuser=NAME superuser user name to use for disabling triggers\n"));
685 2 : printf(_(" -t, --table=NAME restore named relation (table, view, etc.)\n"));
686 2 : printf(_(" -T, --trigger=NAME restore named trigger\n"));
687 2 : printf(_(" -x, --no-privileges skip restoration of access privileges (grant/revoke)\n"));
688 2 : printf(_(" -1, --single-transaction restore as a single transaction\n"));
689 2 : printf(_(" --disable-triggers disable triggers during data-only restore\n"));
690 2 : printf(_(" --enable-row-security enable row security\n"));
691 2 : printf(_(" --exclude-database=PATTERN do not restore the specified database(s)\n"));
692 2 : printf(_(" --filter=FILENAME restore or skip objects based on expressions\n"
693 : " in FILENAME\n"));
694 2 : printf(_(" --if-exists use IF EXISTS when dropping objects\n"));
695 2 : printf(_(" --no-comments do not restore comment commands\n"));
696 2 : printf(_(" --no-data do not restore data\n"));
697 2 : printf(_(" --no-data-for-failed-tables do not restore data of tables that could not be\n"
698 : " created\n"));
699 2 : printf(_(" --no-policies do not restore row security policies\n"));
700 2 : printf(_(" --no-publications do not restore publications\n"));
701 2 : printf(_(" --no-schema do not restore schema\n"));
702 2 : printf(_(" --no-security-labels do not restore security labels\n"));
703 2 : printf(_(" --no-statistics do not restore statistics\n"));
704 2 : printf(_(" --no-subscriptions do not restore subscriptions\n"));
705 2 : printf(_(" --no-table-access-method do not restore table access methods\n"));
706 2 : printf(_(" --no-tablespaces do not restore tablespace assignments\n"));
707 2 : printf(_(" --section=SECTION restore named section (pre-data, data, or post-data)\n"));
708 2 : printf(_(" --statistics-only restore only the statistics, not schema or data\n"));
709 2 : printf(_(" --strict-names require table and/or schema include patterns to\n"
710 : " match at least one entity each\n"));
711 2 : printf(_(" --transaction-size=N commit after every N objects\n"));
712 2 : printf(_(" --use-set-session-authorization\n"
713 : " use SET SESSION AUTHORIZATION commands instead of\n"
714 : " ALTER OWNER commands to set ownership\n"));
715 2 : printf(_(" --with-data dump the data\n"));
716 2 : printf(_(" --with-schema dump the schema\n"));
717 2 : printf(_(" --with-statistics dump the statistics\n"));
718 :
719 2 : printf(_("\nConnection options:\n"));
720 2 : printf(_(" -h, --host=HOSTNAME database server host or socket directory\n"));
721 2 : printf(_(" -p, --port=PORT database server port number\n"));
722 2 : printf(_(" -U, --username=NAME connect as specified database user\n"));
723 2 : printf(_(" -w, --no-password never prompt for password\n"));
724 2 : printf(_(" -W, --password force password prompt (should happen automatically)\n"));
725 2 : printf(_(" --role=ROLENAME do SET ROLE before restore\n"));
726 :
727 2 : printf(_("\n"
728 : "The options -I, -n, -N, -P, -t, -T, --section, and --exclude-database can be combined\n"
729 : "and specified multiple times to select multiple objects.\n"));
730 2 : printf(_("\nIf no input file name is supplied, then standard input is used.\n\n"));
731 2 : printf(_("Report bugs to <%s>.\n"), PACKAGE_BUGREPORT);
732 2 : printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
733 2 : }
734 :
735 : /*
736 : * read_restore_filters - retrieve object identifier patterns from file
737 : *
738 : * Parse the specified filter file for include and exclude patterns, and add
739 : * them to the relevant lists. If the filename is "-" then filters will be
740 : * read from STDIN rather than a file.
741 : */
742 : static void
743 20 : read_restore_filters(const char *filename, RestoreOptions *opts)
744 : {
745 : FilterStateData fstate;
746 : char *objname;
747 : FilterCommandType comtype;
748 : FilterObjectType objtype;
749 :
750 20 : filter_init(&fstate, filename, exit_nicely);
751 :
752 34 : while (filter_read_item(&fstate, &objname, &comtype, &objtype))
753 : {
754 22 : if (comtype == FILTER_COMMAND_TYPE_INCLUDE)
755 : {
756 16 : switch (objtype)
757 : {
758 0 : case FILTER_OBJECT_TYPE_NONE:
759 0 : break;
760 4 : case FILTER_OBJECT_TYPE_TABLE_DATA:
761 : case FILTER_OBJECT_TYPE_TABLE_DATA_AND_CHILDREN:
762 : case FILTER_OBJECT_TYPE_TABLE_AND_CHILDREN:
763 : case FILTER_OBJECT_TYPE_DATABASE:
764 : case FILTER_OBJECT_TYPE_EXTENSION:
765 : case FILTER_OBJECT_TYPE_FOREIGN_DATA:
766 4 : pg_log_filter_error(&fstate, _("%s filter for \"%s\" is not allowed"),
767 : "include",
768 : filter_object_type_name(objtype));
769 4 : exit_nicely(1);
770 :
771 4 : case FILTER_OBJECT_TYPE_FUNCTION:
772 4 : opts->selTypes = 1;
773 4 : opts->selFunction = 1;
774 4 : simple_string_list_append(&opts->functionNames, objname);
775 4 : break;
776 2 : case FILTER_OBJECT_TYPE_INDEX:
777 2 : opts->selTypes = 1;
778 2 : opts->selIndex = 1;
779 2 : simple_string_list_append(&opts->indexNames, objname);
780 2 : break;
781 2 : case FILTER_OBJECT_TYPE_SCHEMA:
782 2 : simple_string_list_append(&opts->schemaNames, objname);
783 2 : break;
784 2 : case FILTER_OBJECT_TYPE_TABLE:
785 2 : opts->selTypes = 1;
786 2 : opts->selTable = 1;
787 2 : simple_string_list_append(&opts->tableNames, objname);
788 2 : break;
789 2 : case FILTER_OBJECT_TYPE_TRIGGER:
790 2 : opts->selTypes = 1;
791 2 : opts->selTrigger = 1;
792 2 : simple_string_list_append(&opts->triggerNames, objname);
793 2 : break;
794 : }
795 12 : }
796 6 : else if (comtype == FILTER_COMMAND_TYPE_EXCLUDE)
797 : {
798 6 : switch (objtype)
799 : {
800 0 : case FILTER_OBJECT_TYPE_NONE:
801 0 : break;
802 4 : case FILTER_OBJECT_TYPE_TABLE_DATA:
803 : case FILTER_OBJECT_TYPE_TABLE_DATA_AND_CHILDREN:
804 : case FILTER_OBJECT_TYPE_DATABASE:
805 : case FILTER_OBJECT_TYPE_EXTENSION:
806 : case FILTER_OBJECT_TYPE_FOREIGN_DATA:
807 : case FILTER_OBJECT_TYPE_FUNCTION:
808 : case FILTER_OBJECT_TYPE_INDEX:
809 : case FILTER_OBJECT_TYPE_TABLE:
810 : case FILTER_OBJECT_TYPE_TABLE_AND_CHILDREN:
811 : case FILTER_OBJECT_TYPE_TRIGGER:
812 4 : pg_log_filter_error(&fstate, _("%s filter for \"%s\" is not allowed"),
813 : "exclude",
814 : filter_object_type_name(objtype));
815 4 : exit_nicely(1);
816 :
817 2 : case FILTER_OBJECT_TYPE_SCHEMA:
818 2 : simple_string_list_append(&opts->schemaExcludeNames, objname);
819 2 : break;
820 : }
821 2 : }
822 : else
823 : {
824 : Assert(comtype == FILTER_COMMAND_TYPE_NONE);
825 : Assert(objtype == FILTER_OBJECT_TYPE_NONE);
826 : }
827 :
828 14 : if (objname)
829 14 : free(objname);
830 : }
831 :
832 12 : filter_free(&fstate);
833 12 : }
834 :
835 : /*
836 : * file_exists_in_directory
837 : *
838 : * Returns true if the file exists in the given directory.
839 : */
840 : static bool
841 448 : file_exists_in_directory(const char *dir, const char *filename)
842 : {
843 : struct stat st;
844 : char buf[MAXPGPATH];
845 :
846 448 : if (snprintf(buf, MAXPGPATH, "%s/%s", dir, filename) >= MAXPGPATH)
847 0 : pg_fatal("directory name too long: \"%s\"", dir);
848 :
849 448 : return (stat(buf, &st) == 0 && S_ISREG(st.st_mode));
850 : }
851 :
852 : /*
853 : * read_one_statement
854 : *
855 : * This will start reading from passed file pointer using fgetc and read till
856 : * semicolon(sql statement terminator for global.dat file)
857 : *
858 : * EOF is returned if end-of-file input is seen; time to shut down.
859 : */
860 :
861 : static int
862 0 : read_one_statement(StringInfo inBuf, FILE *pfile)
863 : {
864 : int c; /* character read from getc() */
865 : int m;
866 :
867 : StringInfoData q;
868 :
869 0 : initStringInfo(&q);
870 :
871 0 : resetStringInfo(inBuf);
872 :
873 : /*
874 : * Read characters until EOF or the appropriate delimiter is seen.
875 : */
876 0 : while ((c = fgetc(pfile)) != EOF)
877 : {
878 0 : if (c != '\'' && c != '"' && c != '\n' && c != ';')
879 : {
880 0 : appendStringInfoChar(inBuf, (char) c);
881 0 : while ((c = fgetc(pfile)) != EOF)
882 : {
883 0 : if (c != '\'' && c != '"' && c != ';' && c != '\n')
884 0 : appendStringInfoChar(inBuf, (char) c);
885 : else
886 : break;
887 : }
888 : }
889 :
890 0 : if (c == '\'' || c == '"')
891 : {
892 0 : appendStringInfoChar(&q, (char) c);
893 0 : m = c;
894 :
895 0 : while ((c = fgetc(pfile)) != EOF)
896 : {
897 0 : appendStringInfoChar(&q, (char) c);
898 :
899 0 : if (c == m)
900 : {
901 0 : appendStringInfoString(inBuf, q.data);
902 0 : resetStringInfo(&q);
903 0 : break;
904 : }
905 : }
906 : }
907 :
908 0 : if (c == ';')
909 : {
910 0 : appendStringInfoChar(inBuf, (char) ';');
911 0 : break;
912 : }
913 :
914 0 : if (c == '\n')
915 0 : appendStringInfoChar(inBuf, (char) '\n');
916 : }
917 :
918 0 : pg_free(q.data);
919 :
920 : /* No input before EOF signal means time to quit. */
921 0 : if (c == EOF && inBuf->len == 0)
922 0 : return EOF;
923 :
924 : /* return something that's not EOF */
925 0 : return 'Q';
926 : }
927 :
928 : /*
929 : * get_dbnames_list_to_restore
930 : *
931 : * This will mark for skipping any entries from dbname_oid_list that pattern match an
932 : * entry in the db_exclude_patterns list.
933 : *
934 : * Returns the number of database to be restored.
935 : *
936 : */
937 : static int
938 14 : get_dbnames_list_to_restore(PGconn *conn,
939 : SimplePtrList *dbname_oid_list,
940 : SimpleStringList db_exclude_patterns)
941 : {
942 14 : int count_db = 0;
943 : PQExpBuffer query;
944 : PGresult *res;
945 :
946 14 : query = createPQExpBuffer();
947 :
948 14 : if (!conn)
949 0 : pg_log_info("considering PATTERN as NAME for --exclude-database option as no db connection while doing pg_restore.");
950 :
951 : /*
952 : * Process one by one all dbnames and if specified to skip restoring, then
953 : * remove dbname from list.
954 : */
955 122 : for (SimplePtrListCell *db_cell = dbname_oid_list->head;
956 108 : db_cell; db_cell = db_cell->next)
957 : {
958 108 : DbOidName *dbidname = (DbOidName *) db_cell->ptr;
959 108 : bool skip_db_restore = false;
960 108 : PQExpBuffer db_lit = createPQExpBuffer();
961 :
962 108 : appendStringLiteralConn(db_lit, dbidname->str, conn);
963 :
964 118 : for (SimpleStringListCell *pat_cell = db_exclude_patterns.head; pat_cell; pat_cell = pat_cell->next)
965 : {
966 : /*
967 : * If there is an exact match then we don't need to try a pattern
968 : * match
969 : */
970 12 : if (pg_strcasecmp(dbidname->str, pat_cell->val) == 0)
971 2 : skip_db_restore = true;
972 : /* Otherwise, try a pattern match if there is a connection */
973 10 : else if (conn)
974 : {
975 : int dotcnt;
976 :
977 10 : appendPQExpBufferStr(query, "SELECT 1 ");
978 10 : processSQLNamePattern(conn, query, pat_cell->val, false,
979 10 : false, NULL, db_lit->data,
980 : NULL, NULL, NULL, &dotcnt);
981 :
982 10 : if (dotcnt > 0)
983 : {
984 0 : pg_log_error("improper qualified name (too many dotted names): %s",
985 : dbidname->str);
986 0 : PQfinish(conn);
987 0 : exit_nicely(1);
988 : }
989 :
990 10 : res = executeQuery(conn, query->data);
991 :
992 10 : if ((PQresultStatus(res) == PGRES_TUPLES_OK) && PQntuples(res))
993 : {
994 0 : skip_db_restore = true;
995 0 : pg_log_info("database \"%s\" matches exclude pattern: \"%s\"", dbidname->str, pat_cell->val);
996 : }
997 :
998 10 : PQclear(res);
999 10 : resetPQExpBuffer(query);
1000 : }
1001 :
1002 12 : if (skip_db_restore)
1003 2 : break;
1004 : }
1005 :
1006 108 : destroyPQExpBuffer(db_lit);
1007 :
1008 : /*
1009 : * Mark db to be skipped or increment the counter of dbs to be
1010 : * restored
1011 : */
1012 108 : if (skip_db_restore)
1013 : {
1014 2 : pg_log_info("excluding database \"%s\"", dbidname->str);
1015 2 : dbidname->oid = InvalidOid;
1016 : }
1017 : else
1018 : {
1019 106 : count_db++;
1020 : }
1021 : }
1022 :
1023 14 : destroyPQExpBuffer(query);
1024 :
1025 14 : return count_db;
1026 : }
1027 :
1028 : /*
1029 : * get_dbname_oid_list_from_mfile
1030 : *
1031 : * Open map.dat file and read line by line and then prepare a list of database
1032 : * names and corresponding db_oid.
1033 : *
1034 : * Returns, total number of database names in map.dat file.
1035 : */
1036 : static int
1037 14 : get_dbname_oid_list_from_mfile(const char *dumpdirpath, SimplePtrList *dbname_oid_list)
1038 : {
1039 : StringInfoData linebuf;
1040 : FILE *pfile;
1041 : char map_file_path[MAXPGPATH];
1042 14 : int count = 0;
1043 :
1044 :
1045 : /*
1046 : * If there is only global.dat file in dump, then return from here as
1047 : * there is no database to restore.
1048 : */
1049 14 : if (!file_exists_in_directory(dumpdirpath, "map.dat"))
1050 : {
1051 0 : pg_log_info("database restoring is skipped as \"map.dat\" is not present in \"%s\"", dumpdirpath);
1052 0 : return 0;
1053 : }
1054 :
1055 14 : snprintf(map_file_path, MAXPGPATH, "%s/map.dat", dumpdirpath);
1056 :
1057 : /* Open map.dat file. */
1058 14 : pfile = fopen(map_file_path, PG_BINARY_R);
1059 :
1060 14 : if (pfile == NULL)
1061 0 : pg_fatal("could not open \"%s\": %m", map_file_path);
1062 :
1063 14 : initStringInfo(&linebuf);
1064 :
1065 : /* Append all the dbname/db_oid combinations to the list. */
1066 122 : while (pg_get_line_buf(pfile, &linebuf))
1067 : {
1068 108 : Oid db_oid = InvalidOid;
1069 : char *dbname;
1070 : DbOidName *dbidname;
1071 : int namelen;
1072 108 : char *p = linebuf.data;
1073 :
1074 : /* Extract dboid. */
1075 536 : while (isdigit((unsigned char) *p))
1076 428 : p++;
1077 108 : if (p > linebuf.data && *p == ' ')
1078 : {
1079 108 : sscanf(linebuf.data, "%u", &db_oid);
1080 108 : p++;
1081 : }
1082 :
1083 : /* dbname is the rest of the line */
1084 108 : dbname = p;
1085 108 : namelen = strlen(dbname);
1086 :
1087 : /* Report error and exit if the file has any corrupted data. */
1088 108 : if (!OidIsValid(db_oid) || namelen <= 1)
1089 0 : pg_fatal("invalid entry in \"%s\" at line: %d", map_file_path,
1090 : count + 1);
1091 :
1092 108 : pg_log_info("found database \"%s\" (OID: %u) in \"%s\"",
1093 : dbname, db_oid, map_file_path);
1094 :
1095 108 : dbidname = pg_malloc(offsetof(DbOidName, str) + namelen + 1);
1096 108 : dbidname->oid = db_oid;
1097 108 : strlcpy(dbidname->str, dbname, namelen);
1098 :
1099 108 : simple_ptr_list_append(dbname_oid_list, dbidname);
1100 108 : count++;
1101 : }
1102 :
1103 : /* Close map.dat file. */
1104 14 : fclose(pfile);
1105 :
1106 14 : return count;
1107 : }
1108 :
1109 : /*
1110 : * restore_all_databases
1111 : *
1112 : * This will restore databases those dumps are present in
1113 : * directory based on map.dat file mapping.
1114 : *
1115 : * This will skip restoring for databases that are specified with
1116 : * exclude-database option.
1117 : *
1118 : * returns, number of errors while doing restore.
1119 : */
1120 : static int
1121 14 : restore_all_databases(PGconn *conn, const char *dumpdirpath,
1122 : SimpleStringList db_exclude_patterns, RestoreOptions *opts,
1123 : int numWorkers)
1124 : {
1125 14 : SimplePtrList dbname_oid_list = {NULL, NULL};
1126 14 : int num_db_restore = 0;
1127 : int num_total_db;
1128 : int n_errors_total;
1129 14 : int count = 0;
1130 14 : char *connected_db = NULL;
1131 14 : bool dumpData = opts->dumpData;
1132 14 : bool dumpSchema = opts->dumpSchema;
1133 14 : bool dumpStatistics = opts->dumpSchema;
1134 :
1135 : /* Save db name to reuse it for all the database. */
1136 14 : if (opts->cparams.dbname)
1137 0 : connected_db = opts->cparams.dbname;
1138 :
1139 14 : num_total_db = get_dbname_oid_list_from_mfile(dumpdirpath, &dbname_oid_list);
1140 :
1141 : /* If map.dat has no entries, return after processing global.dat */
1142 14 : if (dbname_oid_list.head == NULL)
1143 0 : return process_global_sql_commands(conn, dumpdirpath, opts->filename);
1144 :
1145 14 : pg_log_info("found %d database names in \"map.dat\"", num_total_db);
1146 :
1147 14 : if (!conn)
1148 : {
1149 14 : pg_log_info("trying to connect database \"postgres\"");
1150 :
1151 14 : conn = ConnectDatabase("postgres", NULL, opts->cparams.pghost,
1152 14 : opts->cparams.pgport, opts->cparams.username, TRI_DEFAULT,
1153 : false, progname, NULL, NULL, NULL, NULL);
1154 :
1155 : /* Try with template1. */
1156 14 : if (!conn)
1157 : {
1158 0 : pg_log_info("trying to connect database \"template1\"");
1159 :
1160 0 : conn = ConnectDatabase("template1", NULL, opts->cparams.pghost,
1161 0 : opts->cparams.pgport, opts->cparams.username, TRI_DEFAULT,
1162 : false, progname, NULL, NULL, NULL, NULL);
1163 : }
1164 : }
1165 :
1166 : /*
1167 : * filter the db list according to the exclude patterns
1168 : */
1169 14 : num_db_restore = get_dbnames_list_to_restore(conn, &dbname_oid_list,
1170 : db_exclude_patterns);
1171 :
1172 : /* Open global.dat file and execute/append all the global sql commands. */
1173 14 : n_errors_total = process_global_sql_commands(conn, dumpdirpath, opts->filename);
1174 :
1175 : /* Close the db connection as we are done with globals and patterns. */
1176 14 : if (conn)
1177 14 : PQfinish(conn);
1178 :
1179 : /* Exit if no db needs to be restored. */
1180 14 : if (dbname_oid_list.head == NULL || num_db_restore == 0)
1181 : {
1182 0 : pg_log_info("no database needs to restore out of %d databases", num_total_db);
1183 0 : return n_errors_total;
1184 : }
1185 :
1186 14 : pg_log_info("need to restore %d databases out of %d databases", num_db_restore, num_total_db);
1187 :
1188 : /*
1189 : * We have a list of databases to restore after processing the
1190 : * exclude-database switch(es). Now we can restore them one by one.
1191 : */
1192 122 : for (SimplePtrListCell *db_cell = dbname_oid_list.head;
1193 108 : db_cell; db_cell = db_cell->next)
1194 : {
1195 108 : DbOidName *dbidname = (DbOidName *) db_cell->ptr;
1196 : char subdirpath[MAXPGPATH];
1197 : char subdirdbpath[MAXPGPATH];
1198 : char dbfilename[MAXPGPATH];
1199 : int n_errors;
1200 :
1201 : /* ignore dbs marked for skipping */
1202 108 : if (dbidname->oid == InvalidOid)
1203 2 : continue;
1204 :
1205 : /*
1206 : * We need to reset override_dbname so that objects can be restored
1207 : * into an already created database. (used with -d/--dbname option)
1208 : */
1209 106 : if (opts->cparams.override_dbname)
1210 : {
1211 0 : pfree(opts->cparams.override_dbname);
1212 0 : opts->cparams.override_dbname = NULL;
1213 : }
1214 :
1215 106 : snprintf(subdirdbpath, MAXPGPATH, "%s/databases", dumpdirpath);
1216 :
1217 : /*
1218 : * Look for the database dump file/dir. If there is an {oid}.tar or
1219 : * {oid}.dmp file, use it. Otherwise try to use a directory called
1220 : * {oid}
1221 : */
1222 106 : snprintf(dbfilename, MAXPGPATH, "%u.tar", dbidname->oid);
1223 106 : if (file_exists_in_directory(subdirdbpath, dbfilename))
1224 16 : snprintf(subdirpath, MAXPGPATH, "%s/databases/%u.tar", dumpdirpath, dbidname->oid);
1225 : else
1226 : {
1227 90 : snprintf(dbfilename, MAXPGPATH, "%u.dmp", dbidname->oid);
1228 :
1229 90 : if (file_exists_in_directory(subdirdbpath, dbfilename))
1230 16 : snprintf(subdirpath, MAXPGPATH, "%s/databases/%u.dmp", dumpdirpath, dbidname->oid);
1231 : else
1232 74 : snprintf(subdirpath, MAXPGPATH, "%s/databases/%u", dumpdirpath, dbidname->oid);
1233 : }
1234 :
1235 106 : pg_log_info("restoring database \"%s\"", dbidname->str);
1236 :
1237 : /* If database is already created, then don't set createDB flag. */
1238 106 : if (opts->cparams.dbname)
1239 : {
1240 : PGconn *test_conn;
1241 :
1242 0 : test_conn = ConnectDatabase(dbidname->str, NULL, opts->cparams.pghost,
1243 0 : opts->cparams.pgport, opts->cparams.username, TRI_DEFAULT,
1244 : false, progname, NULL, NULL, NULL, NULL);
1245 0 : if (test_conn)
1246 : {
1247 0 : PQfinish(test_conn);
1248 :
1249 : /* Use already created database for connection. */
1250 0 : opts->createDB = 0;
1251 0 : opts->cparams.dbname = dbidname->str;
1252 : }
1253 : else
1254 : {
1255 : /* we'll have to create it */
1256 0 : opts->createDB = 1;
1257 0 : opts->cparams.dbname = connected_db;
1258 : }
1259 : }
1260 :
1261 : /*
1262 : * Reset flags - might have been reset in pg_backup_archiver.c by the
1263 : * previous restore.
1264 : */
1265 106 : opts->dumpData = dumpData;
1266 106 : opts->dumpSchema = dumpSchema;
1267 106 : opts->dumpStatistics = dumpStatistics;
1268 :
1269 : /* Restore the single database. */
1270 106 : n_errors = restore_one_database(subdirpath, opts, numWorkers, true, count);
1271 :
1272 : /* Print a summary of ignored errors during single database restore. */
1273 106 : if (n_errors)
1274 : {
1275 0 : n_errors_total += n_errors;
1276 0 : pg_log_warning("errors ignored on database \"%s\" restore: %d", dbidname->str, n_errors);
1277 : }
1278 :
1279 106 : count++;
1280 : }
1281 :
1282 : /* Log number of processed databases. */
1283 14 : pg_log_info("number of restored databases is %d", num_db_restore);
1284 :
1285 : /* Free dbname and dboid list. */
1286 14 : simple_ptr_list_destroy(&dbname_oid_list);
1287 :
1288 14 : return n_errors_total;
1289 : }
1290 :
1291 : /*
1292 : * process_global_sql_commands
1293 : *
1294 : * Open global.dat and execute or copy the sql commands one by one.
1295 : *
1296 : * If outfile is not NULL, copy all sql commands into outfile rather than
1297 : * executing them.
1298 : *
1299 : * Returns the number of errors while processing global.dat
1300 : */
1301 : static int
1302 16 : process_global_sql_commands(PGconn *conn, const char *dumpdirpath, const char *outfile)
1303 : {
1304 : char global_file_path[MAXPGPATH];
1305 : PGresult *result;
1306 : StringInfoData sqlstatement,
1307 : user_create;
1308 : FILE *pfile;
1309 16 : int n_errors = 0;
1310 :
1311 16 : snprintf(global_file_path, MAXPGPATH, "%s/global.dat", dumpdirpath);
1312 :
1313 : /* Open global.dat file. */
1314 16 : pfile = fopen(global_file_path, PG_BINARY_R);
1315 :
1316 16 : if (pfile == NULL)
1317 0 : pg_fatal("could not open \"%s\": %m", global_file_path);
1318 :
1319 : /*
1320 : * If outfile is given, then just copy all global.dat file data into
1321 : * outfile.
1322 : */
1323 16 : if (outfile)
1324 : {
1325 16 : copy_or_print_global_file(outfile, pfile);
1326 16 : return 0;
1327 : }
1328 :
1329 : /* Init sqlstatement to append commands. */
1330 0 : initStringInfo(&sqlstatement);
1331 :
1332 : /* creation statement for our current role */
1333 0 : initStringInfo(&user_create);
1334 0 : appendStringInfoString(&user_create, "CREATE ROLE ");
1335 : /* should use fmtId here, but we don't know the encoding */
1336 0 : appendStringInfoString(&user_create, PQuser(conn));
1337 0 : appendStringInfoChar(&user_create, ';');
1338 :
1339 : /* Process file till EOF and execute sql statements. */
1340 0 : while (read_one_statement(&sqlstatement, pfile) != EOF)
1341 : {
1342 : /* don't try to create the role we are connected as */
1343 0 : if (strstr(sqlstatement.data, user_create.data))
1344 0 : continue;
1345 :
1346 0 : pg_log_info("executing query: %s", sqlstatement.data);
1347 0 : result = PQexec(conn, sqlstatement.data);
1348 :
1349 0 : switch (PQresultStatus(result))
1350 : {
1351 0 : case PGRES_COMMAND_OK:
1352 : case PGRES_TUPLES_OK:
1353 : case PGRES_EMPTY_QUERY:
1354 0 : break;
1355 0 : default:
1356 0 : n_errors++;
1357 0 : pg_log_error("could not execute query: \"%s\" \nCommand was: \"%s\"", PQerrorMessage(conn), sqlstatement.data);
1358 : }
1359 0 : PQclear(result);
1360 : }
1361 :
1362 : /* Print a summary of ignored errors during global.dat. */
1363 0 : if (n_errors)
1364 0 : pg_log_warning("ignored %d errors in \"%s\"", n_errors, global_file_path);
1365 :
1366 0 : fclose(pfile);
1367 :
1368 0 : return n_errors;
1369 : }
1370 :
1371 : /*
1372 : * copy_or_print_global_file
1373 : *
1374 : * Copy global.dat into the output file. If "-" is used as outfile,
1375 : * then print commands to stdout.
1376 : */
1377 : static void
1378 16 : copy_or_print_global_file(const char *outfile, FILE *pfile)
1379 : {
1380 : char out_file_path[MAXPGPATH];
1381 : FILE *OPF;
1382 : int c;
1383 :
1384 : /* "-" is used for stdout. */
1385 16 : if (strcmp(outfile, "-") == 0)
1386 0 : OPF = stdout;
1387 : else
1388 : {
1389 16 : snprintf(out_file_path, MAXPGPATH, "%s", outfile);
1390 16 : OPF = fopen(out_file_path, PG_BINARY_W);
1391 :
1392 16 : if (OPF == NULL)
1393 : {
1394 0 : fclose(pfile);
1395 0 : pg_fatal("could not open file: \"%s\"", outfile);
1396 : }
1397 : }
1398 :
1399 : /* Append global.dat into output file or print to stdout. */
1400 37744 : while ((c = fgetc(pfile)) != EOF)
1401 37728 : fputc(c, OPF);
1402 :
1403 16 : fclose(pfile);
1404 :
1405 : /* Close output file. */
1406 16 : if (strcmp(outfile, "-") != 0)
1407 16 : fclose(OPF);
1408 16 : }
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