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https://git.postgresql.org/git/postgresql.git
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408 lines
11 KiB
C
408 lines
11 KiB
C
/*-------------------------------------------------------------------------
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*
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* pg_restore.c
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* pg_restore is an utility extracting postgres database definitions
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* from a backup archive created by pg_dump using the archiver
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* interface.
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*
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* pg_restore will read the backup archive and
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* dump out a script that reproduces
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* the schema of the database in terms of
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* user-defined types
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* user-defined functions
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* tables
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* indices
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* aggregates
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* operators
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* ACL - grant/revoke
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*
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* the output script is SQL that is understood by PostgreSQL
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*
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* Basic process in a restore operation is:
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*
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* Open the Archive and read the TOC.
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* Set flags in TOC entries, and *maybe* reorder them.
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* Generate script to stdout
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* Exit
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*
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* Copyright (c) 2000, Philip Warner
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* Rights are granted to use this software in any way so long
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* as this notice is not removed.
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*
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* The author is not responsible for loss or damages that may
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* result from it's use.
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*
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*
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* IDENTIFICATION
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*
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* Modifications - 28-Jun-2000 - pjw@rhyme.com.au
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*
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* Initial version. Command processing taken from original pg_dump.
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*
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* Modifications - 28-Jul-2000 - pjw@rhyme.com.au (1.45)
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*
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* Added --create, --no-owner, --superuser, --no-reconnect (pg_dump & pg_restore)
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* Added code to dump 'Create Schema' statement (pg_dump)
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* Don't bother to disable/enable triggers if we don't have a superuser (pg_restore)
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* Cleaned up code for reconnecting to database.
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* Force a reconnect as superuser before enabling/disabling triggers.
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*
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*-------------------------------------------------------------------------
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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/*
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#include "postgres.h"
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#include "access/htup.h"
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#include "catalog/pg_type.h"
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#include "catalog/pg_language.h"
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#include "catalog/pg_index.h"
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#include "catalog/pg_trigger.h"
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#include "libpq-fe.h"
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*/
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#include "pg_backup.h"
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#ifndef HAVE_STRDUP
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#include "strdup.h"
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#endif
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#ifdef HAVE_TERMIOS_H
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#include <termios.h>
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#endif
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#else
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#include <unistd.h>
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#endif
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/* Forward decls */
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static void usage(const char *progname);
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static char* _cleanupName(char* name);
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typedef struct option optType;
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#ifdef HAVE_GETOPT_H
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struct option cmdopts[] = {
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{ "clean", 0, NULL, 'c' },
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{ "create", 0, NULL, 'C' },
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{ "data-only", 0, NULL, 'a' },
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{ "dbname", 1, NULL, 'd' },
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{ "file", 1, NULL, 'f' },
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{ "format", 1, NULL, 'F' },
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{ "function", 2, NULL, 'P' },
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{ "host", 1, NULL, 'h' },
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{ "ignore-version", 0, NULL, 'i'},
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{ "index", 2, NULL, 'I'},
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{ "list", 0, NULL, 'l'},
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{ "no-acl", 0, NULL, 'x' },
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{ "no-owner", 0, NULL, 'O'},
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{ "no-reconnect", 0, NULL, 'R' },
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{ "port", 1, NULL, 'p' },
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{ "oid-order", 0, NULL, 'o'},
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{ "orig-order", 0, NULL, 'N'},
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{ "password", 0, NULL, 'u' },
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{ "rearrange", 0, NULL, 'r'},
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{ "schema-only", 0, NULL, 's' },
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{ "superuser", 1, NULL, 'S' },
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{ "table", 2, NULL, 't'},
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{ "trigger", 2, NULL, 'T' },
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{ "use-list", 1, NULL, 'U'},
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{ "verbose", 0, NULL, 'v' },
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{ NULL, 0, NULL, 0}
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};
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#endif
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int main(int argc, char **argv)
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{
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RestoreOptions *opts;
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char *progname;
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int c;
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Archive* AH;
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char *fileSpec = NULL;
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opts = NewRestoreOptions();
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progname = *argv;
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#ifdef HAVE_GETOPT_LONG
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while ((c = getopt_long(argc, argv, "acCd:f:F:h:i:lNoOp:rRsS:t:T:uU:vx", cmdopts, NULL)) != EOF)
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#else
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while ((c = getopt(argc, argv, "acCd:f:F:h:i:lNoOp:rRsS:t:T:uU:vx")) != -1)
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#endif
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{
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switch (c)
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{
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case 'a': /* Dump data only */
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opts->dataOnly = 1;
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break;
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case 'c': /* clean (i.e., drop) schema prior to
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* create */
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opts->dropSchema = 1;
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break;
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case 'C':
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opts->create = 1;
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break;
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case 'd':
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if (strlen(optarg) != 0)
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{
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opts->dbname = strdup(optarg);
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opts->useDB = 1;
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}
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break;
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case 'f': /* output file name */
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opts->filename = strdup(optarg);
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break;
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case 'F':
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if (strlen(optarg) != 0)
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opts->formatName = strdup(optarg);
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break;
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case 'h':
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if (strlen(optarg) != 0)
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opts->pghost = strdup(optarg);
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break;
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case 'i':
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opts->ignoreVersion = 1;
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break;
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case 'N':
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opts->origOrder = 1;
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break;
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case 'o':
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opts->oidOrder = 1;
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break;
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case 'O':
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opts->noOwner = 1;
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break;
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case 'p':
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if (strlen(optarg) != 0)
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opts->pgport = strdup(optarg);
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break;
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case 'r':
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opts->rearrange = 1;
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break;
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case 'R':
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opts->noReconnect = 1;
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break;
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case 'P': /* Function */
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opts->selTypes = 1;
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opts->selFunction = 1;
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opts->functionNames = _cleanupName(optarg);
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break;
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case 'I': /* Index */
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opts->selTypes = 1;
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opts->selIndex = 1;
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opts->indexNames = _cleanupName(optarg);
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break;
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case 'T': /* Trigger */
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opts->selTypes = 1;
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opts->selTrigger = 1;
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opts->triggerNames = _cleanupName(optarg);
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break;
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case 's': /* dump schema only */
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opts->schemaOnly = 1;
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break;
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case 'S': /* Superuser username */
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if (strlen(optarg) != 0)
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opts->superuser = strdup(optarg);
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break;
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case 't': /* Dump data for this table only */
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opts->selTypes = 1;
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opts->selTable = 1;
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opts->tableNames = _cleanupName(optarg);
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break;
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case 'l': /* Dump the TOC summary */
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opts->tocSummary = 1;
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break;
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case 'u':
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opts->requirePassword = 1;
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break;
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case 'U': /* input TOC summary file name */
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opts->tocFile = strdup(optarg);
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break;
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case 'v': /* verbose */
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opts->verbose = 1;
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break;
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case 'x': /* skip ACL dump */
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opts->aclsSkip = 1;
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break;
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default:
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usage(progname);
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break;
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}
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}
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if (optind < argc) {
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fileSpec = argv[optind];
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} else {
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fileSpec = NULL;
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}
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if (opts->formatName) {
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switch (opts->formatName[0]) {
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case 'c':
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case 'C':
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opts->format = archCustom;
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break;
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case 'f':
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case 'F':
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opts->format = archFiles;
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break;
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case 't':
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case 'T':
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opts->format = archTar;
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break;
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default:
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fprintf(stderr, "%s: Unknown archive format '%s', please specify 't' or 'c'\n",
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progname, opts->formatName);
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exit (1);
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}
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}
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AH = OpenArchive(fileSpec, opts->format);
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/* Let the archiver know how noisy to be */
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AH->verbose = opts->verbose;
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if (opts->tocFile)
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SortTocFromFile(AH, opts);
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if (opts->oidOrder)
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SortTocByOID(AH);
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else if (opts->origOrder)
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SortTocByID(AH);
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if (opts->rearrange) {
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MoveToStart(AH, "<Init>");
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MoveToEnd(AH, "TABLE DATA");
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MoveToEnd(AH, "BLOBS");
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MoveToEnd(AH, "INDEX");
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MoveToEnd(AH, "TRIGGER");
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MoveToEnd(AH, "RULE");
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MoveToEnd(AH, "SEQUENCE SET");
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}
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/* Database MUST be at start */
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MoveToStart(AH, "DATABASE");
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if (opts->tocSummary) {
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PrintTOCSummary(AH, opts);
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} else {
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RestoreArchive(AH, opts);
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}
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CloseArchive(AH);
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return 1;
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}
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static void usage(const char *progname)
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{
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#ifdef HAVE_GETOPT_LONG
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fprintf(stderr,
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"usage: %s [options] [backup file]\n"
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" -a, --data-only \t dump out only the data, no schema\n"
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" -d, --dbname <name> \t specify database name\n"
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" -c, --clean \t clean(drop) schema prior to create\n"
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" -C, --create \t output commands to create the database\n"
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" -f filename \t script output filename\n"
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" -F, --format {c|f} \t specify backup file format\n"
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" -h, --host <hostname> \t server host name\n"
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" -i, --index[=name] \t dump indexes or named index\n"
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" -l, --list \t dump summarized TOC for this file\n"
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" -N, --orig-order \t dump in original dump order\n"
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" -o, --oid-order \t dump in oid order\n"
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" -O, --no-owner \t don't output reconnect to database to match object owner\n"
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" -p, --port <port> \t server port number\n"
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" -P, --function[=name] \t dump functions or named function\n"
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" -r, --rearrange \t rearrange output to put indexes etc at end\n"
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" -R, --no-reconnect \t disallow ALL reconnections to the database\n"
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" -s, --schema-only \t dump out only the schema, no data\n"
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" -S, --superuser <name> \t specify the superuser username to use in disabling triggers\n"
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" -t [table], --table[=table] \t dump for this table only\n"
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" -T, --trigger[=name] \t dump triggers or named trigger\n"
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" -u, --password \t use password authentication\n"
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" -U, --use-list filename \t use specified TOC for ordering output from this file\n"
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" -v, --verbose \t verbose\n"
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" -x, --no-acl \t skip dumping of ACLs (grant/revoke)\n"
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, progname);
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#else
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fprintf(stderr,
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"usage: %s [options] [backup file]\n"
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" -a \t dump out only the data, no schema\n"
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" -d <name> \t specify database name\n"
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" -c \t clean(drop) schema prior to create\n"
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" -C \t output commands to create the database\n"
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" -f filename \t script output filename\n"
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" -F {c|f} \t specify backup file format\n"
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" -h <hostname> \t server host name\n"
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" -i name \t dump indexes or named index\n"
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" -l \t dump summarized TOC for this file\n"
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" -N \t dump in original dump order\n"
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" -o \t dump in oid order\n"
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" -O \t don't output reconnect to database to match object owner\n"
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" -p <port> \t server port number\n"
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" -P name \t dump functions or named function\n"
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" -r \t rearrange output to put indexes etc at end\n"
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" -R \t disallow ALL reconnections to the database\n"
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" -s \t dump out only the schema, no data\n"
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" -S <name> \t specify the superuser username to use in disabling triggers\n"
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" -t name \t dump for this table only\n"
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" -T name \t dump triggers or named trigger\n"
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" -u \t use password authentication\n"
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" -U filename \t use specified TOC for ordering output from this file\n"
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" -v \t verbose\n"
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" -x \t skip dumping of ACLs (grant/revoke)\n"
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, progname);
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#endif
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fprintf(stderr,
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"\nIf [backup file] is not supplied, then standard input "
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"is used.\n");
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fprintf(stderr, "\n");
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exit(1);
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}
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static char* _cleanupName(char* name)
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{
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int i;
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if (!name)
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return NULL;
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if (strlen(name) == 0)
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return NULL;
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name = strdup(name);
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if (name[0] == '"')
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{
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strcpy(name, &name[1]);
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if (*(name + strlen(name) - 1) == '"')
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*(name + strlen(name) - 1) = '\0';
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}
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/* otherwise, convert table name to lowercase... */
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else
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{
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for (i = 0; name[i]; i++)
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if (isascii((unsigned char) name[i]) && isupper(name[i]))
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name[i] = tolower(name[i]);
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}
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return name;
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}
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