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d2d7865b5b9b8f12e51165db6e70dfb5f10dd651
postgres/contrib/pg_dumplo/main.c
Bruce Momjian d66a8c7c47 Very small changes in the contrib's pg_dumplo in the attache. 
And:

 Note, Bruce I found in the contrib tree any files that we forget
remove during contrib cleaning. Please remove these files:

contrib/lo/test.sql
contrib/pg_dumplo/Makefile.out
contrib/pgbench/pgbench_jis.doc
contrib/spi/new_example.example
contrib/spi/README.MAX

Thanks.

                                Karel
2000-07-03 16:03:27 +00:00

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/* -------------------------------------------------------------------------
* pg_dumplo
*
* Portions Copyright (c) 1999-2000, PostgreSQL, Inc
*
* $Header: /cvsroot/pgsql/contrib/pg_dumplo/Attic/main.c,v 1.3 2000/07/03 16:03:22 momjian Exp $
*
* Karel Zak 1999-2000
* -------------------------------------------------------------------------
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#ifndef OUT_OF_PG
#include "postgres.h"
#endif
#include <libpq-fe.h>
#include <libpq/libpq-fs.h>
#ifdef HAVE_GETOPT_LONG
#include <getopt.h>
#define no_argument 0
#define required_argument 1
#endif
extern int errno;
char *progname = NULL;
#include "pg_dumplo.h"
int main(int argc, char **argv);
static void usage(void);
static void parse_lolist (LODumpMaster *pgLO);
/*-----
* The mother of all C functions
*-----
*/
int
main(int argc, char **argv)
{
LODumpMaster _pgLO, *pgLO = &_pgLO;
char *pwd = NULL;
pgLO->argv = argv;
pgLO->argc = argc;
pgLO->action = 0;
pgLO->lolist = NULL;
pgLO->user = NULL;
pgLO->db = NULL;
pgLO->host = NULL;
pgLO->space = NULL;
pgLO->index = NULL;
pgLO->remove = FALSE;
pgLO->quiet = FALSE;
pgLO->counter = 0;
pgLO->lolist_start = 0;
progname = argv[0];
/* ----------
* Parse ARGV
* ----------
*/
if (argc > 1) {
int arg;
extern int optind;
#ifdef HAVE_GETOPT_LONG
int l_index=0;
static struct option l_opt[] = {
{ "help", no_argument, 0, 'h' },
{ "user", required_argument, 0, 'u' },
{ "pwd", required_argument, 0, 'p' },
{ "db", required_argument, 0, 'd' },
{ "host", required_argument, 0, 'h' },
{ "space", required_argument, 0, 's' },
{ "import", no_argument, 0, 'i' },
{ "export", no_argument, 0, 'e' },
{ "remove", no_argument, 0, 'r' },
{ "quiet", no_argument, 0, 'q' },
{ "all", no_argument, 0, 'a' },
{ "show", no_argument, 0, 'w' },
{ NULL, 0, 0, 0 }
};
while((arg = getopt_long(argc, argv, "?aehu:p:qd:l:t:irs:w", l_opt, &l_index)) != -1) {
#else
while((arg = getopt(argc, argv, "?aehu:p:qd:l:t:irs:w")) != -1) {
#endif
switch(arg) {
case '?':
case 'h':
usage();
exit(RE_OK);
case 'u':
pgLO->user = strdup(optarg);
break;
case 't':
pgLO->host = strdup(optarg);
break;
case 'p':
pwd = strdup(optarg);
break;
case 'd':
pgLO->db = strdup(optarg);
break;
case 's':
pgLO->space = strdup(optarg);
break;
case 'i':
pgLO->action = ACTION_IMPORT;
break;
case 'l':
pgLO->action = ACTION_EXPORT_ATTR;
pgLO->lolist_start = optind-1;
parse_lolist (pgLO);
break;
case 'e':
case 'a':
pgLO->action = ACTION_EXPORT_ALL;
break;
case 'w':
pgLO->action = ACTION_SHOW;
break;
case 'r':
pgLO->remove = TRUE;
break;
case 'q':
pgLO->quiet = TRUE;
break;
default:
fprintf(stderr, "%s: bad arg!\n", progname);
usage();
exit(RE_ERROR);
}
}
} else {
usage();
exit(RE_ERROR);
}
/* ----------
* Check space
* ----------
*/
if (! pgLO->space && ! pgLO->action == ACTION_SHOW) {
if (!(pgLO->space = getenv("PWD"))) {
fprintf(stderr, "%s: not set space for dump-tree (option '-s' or $PWD).\n", progname);
exit(RE_ERROR);
}
}
if (!pgLO->action) {
fprintf(stderr, "%s: What do you want - export or import?\n", progname);
exit(RE_ERROR);
}
/* ----------
* Make connection
* ----------
*/
pgLO->conn = PQsetdbLogin(pgLO->host, NULL, NULL, NULL, pgLO->db,
pgLO->user, pwd);
if (PQstatus(pgLO->conn) == CONNECTION_BAD) {
fprintf(stderr, "%s (connection): %s\n", progname, PQerrorMessage(pgLO->conn));
exit(RE_ERROR);
}
pgLO->host = PQhost(pgLO->conn) ? PQhost(pgLO->conn) : "localhost";
pgLO->db = PQdb(pgLO->conn);
pgLO->user = PQuser(pgLO->conn);
/* ----------
* Init index file
* ----------
*/
if (pgLO->action != ACTION_SHOW)
index_file(pgLO);
PQexec(pgLO->conn, "BEGIN");
switch(pgLO->action) {
case ACTION_SHOW:
case ACTION_EXPORT_ALL:
load_lolist(pgLO);
case ACTION_EXPORT_ATTR:
pglo_export(pgLO);
if (!pgLO->quiet) {
if (pgLO->action == ACTION_SHOW)
printf("\nDatabase '%s' contains %d large objects.\n\n", pgLO->db, pgLO->counter);
else
printf("\nExported %d large objects.\n\n", pgLO->counter);
}
break;
case ACTION_IMPORT:
pglo_import(pgLO);
if (!pgLO->quiet)
printf("\nImported %d large objects.\n\n", pgLO->counter);
break;
}
PQexec(pgLO->conn, "COMMIT");
PQfinish(pgLO->conn);
if (pgLO->action != ACTION_SHOW)
fclose(pgLO->index);
exit(RE_OK);
}
static void
parse_lolist (LODumpMaster *pgLO)
{
LOlist *ll;
char **d,
*loc,
buff[MAX_TABLE_NAME + MAX_ATTR_NAME +1];
pgLO->lolist = (LOlist *) malloc(pgLO->argc * sizeof(LOlist));
if (! pgLO->lolist) {
fprintf(stderr, "%s: can't allocate memory\n", progname);
exit(RE_ERROR);
}
for( d=pgLO->argv + pgLO->lolist_start, ll=pgLO->lolist;
*d != NULL;
d++, ll++) {
strncpy(buff, *d, MAX_TABLE_NAME + MAX_ATTR_NAME);
if ((loc = strchr(buff, '.')) == NULL) {
fprintf(stderr, "%s: '%s' is bad 'table.attr'\n", progname, buff);
exit(RE_ERROR);
}
*loc = '\0';
ll->lo_table = strdup(buff);
ll->lo_attr = strdup(++loc);
}
ll++;
ll->lo_table = ll->lo_attr = (char *) NULL;
}
static void
usage()
{
printf("\npg_dumplo %s - PostgreSQL large objects dump\n", VERSION);
puts("pg_dumplo [option]\n\n"
#ifdef HAVE_GETOPT_LONG
"-h --help this help\n"
"-u --user=<username> username for connection to server\n"
"-p --password=<password> password for connection to server\n"
"-d --db=<database> database name\n"
"-t --host=<hostname> server hostname\n"
"-s --space=<dir> directory with dump tree (for export/import)\n"
"-i --import import large obj dump tree to DB\n"
"-e --export export (dump) large obj to dump tree\n"
"-l <table.attr ...> dump attribute (columns) with LO to dump tree\n"
"-a --all dump all LO in DB (default)\n"
"-r --remove if is set '-i' try remove old LO\n"
"-q --quiet run quietly\n"
"-w --show not dump, but show all LO in DB\n"
); /* puts() */
#else
"-h this help\n"
"-u <username> username for connection to server\n"
"-p <password> password for connection to server\n"
"-d <database> database name\n"
"-t <hostname> server hostname\n"
"-s <dir> directory with dump tree (for export/import)\n"
"-i import large obj dump tree to DB\n"
"-e export (dump) large obj to dump tree\n"
"-l <table.attr ...> dump attribute (columns) with LO to dump tree\n"
"-a dump all LO in DB (default)\n"
"-r if is set '-i' try remove old LO\n"
"-q run quietly\n"
"-w not dump, but show all LO in DB\n"
); /* puts() */
#endif
puts(
"Example (dump): pg_dumplo -d my_db -s /my_dump/dir -l t1.a t1.b t2.a\n"
" pg_dumplo -a -d my_db -s /my_dump/dir\n"
"Example (import): pg_dumplo -i -d my_db -s /my_dump/dir\n"
"Example (show): pg_dumplo -w -d my_db\n\n"
"Note: * option '-l' must be last option!\n"
" * option '-i' without option '-r' make new large obj in DB\n"
" not rewrite old, the '-i' UPDATE oid numbers in table.attr only!\n"
" * if is not set option -s, the pg_dumplo use $PWD\n"
); /* puts()*/
}
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