granicus.if.org Git - postgresql/blob - src/bin/scripts/clusterdb.c

   1 /*-------------------------------------------------------------------------
   2  *
   3  * clusterdb
   4  *
   5  * Portions Copyright (c) 2002-2003, PostgreSQL Global Development Group
   6  *
   7  * $Header: /cvsroot/pgsql/src/bin/scripts/clusterdb.c,v 1.3 2003/08/04 00:43:29 momjian Exp $
   8  *
   9  *-------------------------------------------------------------------------
  10  */
  11
  12 #include "postgres_fe.h"
  13 #include "common.h"
  14 #include "dumputils.h"
  15
  16
  17 static
  18 void
  19 cluster_one_database(const char *dbname, const char *table,
  20  const char *host, const char *port, const char *username, bool password,
  21                                          const char *progname, bool echo, bool quiet);
  22 static
  23 void
  24 cluster_all_databases(const char *host, const char *port, const char *username, bool password,
  25                                           const char *progname, bool echo, bool quiet);
  26
  27 static void help(const char *progname);
  28
  29
  30 int
  31 main(int argc, char *argv[])
  32 {
  33         static struct option long_options[] = {
  34                 {"host", required_argument, NULL, 'h'},
  35                 {"port", required_argument, NULL, 'p'},
  36                 {"username", required_argument, NULL, 'U'},
  37                 {"password", no_argument, NULL, 'W'},
  38                 {"echo", no_argument, NULL, 'e'},
  39                 {"quiet", no_argument, NULL, 'q'},
  40                 {"dbname", required_argument, NULL, 'd'},
  41                 {"all", no_argument, NULL, 'a'},
  42                 {"table", required_argument, NULL, 't'},
  43                 {NULL, 0, NULL, 0}
  44         };
  45
  46         char       *progname;
  47         int                     optindex;
  48         int                     c;
  49
  50         const char *dbname = NULL;
  51         char       *host = NULL;
  52         char       *port = NULL;
  53         char       *username = NULL;
  54         bool            password = false;
  55         bool            echo = false;
  56         bool            quiet = false;
  57         bool            alldb = false;
  58         char       *table = NULL;
  59
  60         progname = get_progname(argv[0]);
  61         init_nls();
  62         handle_help_version_opts(argc, argv, "clusterdb", help);
  63
  64         while ((c = getopt_long(argc, argv, "h:p:U:Weqd:at:", long_options, &optindex)) != -1)
  65         {
  66                 switch (c)
  67                 {
  68                         case 'h':
  69                                 host = optarg;
  70                                 break;
  71                         case 'p':
  72                                 port = optarg;
  73                                 break;
  74                         case 'U':
  75                                 username = optarg;
  76                                 break;
  77                         case 'W':
  78                                 password = true;
  79                                 break;
  80                         case 'e':
  81                                 echo = true;
  82                                 break;
  83                         case 'q':
  84                                 quiet = true;
  85                                 break;
  86                         case 'd':
  87                                 dbname = optarg;
  88                                 break;
  89                         case 'a':
  90                                 alldb = true;
  91                                 break;
  92                         case 't':
  93                                 table = optarg;
  94                                 break;
  95                         default:
  96                                 fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
  97                                 exit(1);
  98                 }
  99         }
 100
 101         switch (argc - optind)
 102         {
 103                 case 0:
 104                         break;
 105                 case 1:
 106                         dbname = argv[optind];
 107                         break;
 108                 default:
 109                         fprintf(stderr, _("%s: too many command-line arguments (first is \"%s\")\n"),
 110                                         progname, argv[optind + 1]);
 111                         fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 112                         exit(1);
 113         }
 114
 115         if (alldb)
 116         {
 117                 if (dbname)
 118                 {
 119                         fprintf(stderr, _("%s: cannot cluster all databases and a specific one at the same time\n"),
 120                                         progname);
 121                         exit(1);
 122                 }
 123                 if (table)
 124                 {
 125                         fprintf(stderr, _("%s: cannot cluster a specific table in all databases\n"),
 126                                         progname);
 127                         exit(1);
 128                 }
 129
 130                 cluster_all_databases(host, port, username, password,
 131                                                           progname, echo, quiet);
 132         }
 133         else
 134         {
 135                 if (dbname == NULL)
 136                 {
 137                         if (getenv("PGDATABASE"))
 138                                 dbname = getenv("PGDATABASE");
 139                         else if (getenv("PGUSER"))
 140                                 dbname = getenv("PGUSER");
 141                         else
 142                                 dbname = get_user_name(progname);
 143                 }
 144
 145                 cluster_one_database(dbname, table,
 146                                                          host, port, username, password,
 147                                                          progname, echo, quiet);
 148         }
 149
 150         exit(0);
 151 }
 152
 153
 154 static
 155 void
 156 cluster_one_database(const char *dbname, const char *table,
 157  const char *host, const char *port, const char *username, bool password,
 158                                          const char *progname, bool echo, bool quiet)
 159 {
 160         PQExpBufferData sql;
 161
 162         PGconn     *conn;
 163         PGresult   *result;
 164
 165         initPQExpBuffer(&sql);
 166
 167         appendPQExpBuffer(&sql, "CLUSTER");
 168         if (table)
 169                 appendPQExpBuffer(&sql, " %s", fmtId(table));
 170         appendPQExpBuffer(&sql, ";\n");
 171
 172         conn = connectDatabase(dbname, host, port, username, password, progname);
 173
 174         if (echo)
 175                 printf("%s", sql.data);
 176         result = PQexec(conn, sql.data);
 177
 178         if (PQresultStatus(result) != PGRES_COMMAND_OK)
 179         {
 180                 if (table)
 181                         fprintf(stderr, _("%s: clustering of table \"%s\" in database \"%s\" failed: %s"),
 182                                         progname, table, dbname, PQerrorMessage(conn));
 183                 else
 184                         fprintf(stderr, _("%s: clustering of database \"%s\" failed: %s"),
 185                                         progname, dbname, PQerrorMessage(conn));
 186                 PQfinish(conn);
 187                 exit(1);
 188         }
 189
 190         PQclear(result);
 191         PQfinish(conn);
 192         termPQExpBuffer(&sql);
 193
 194         if (!quiet)
 195                 puts("CLUSTER");
 196 }
 197
 198
 199 static
 200 void
 201 cluster_all_databases(const char *host, const char *port, const char *username, bool password,
 202                                           const char *progname, bool echo, bool quiet)
 203 {
 204         PGconn     *conn;
 205         PGresult   *result;
 206         int                     i;
 207
 208         conn = connectDatabase("template1", host, port, username, password, progname);
 209         result = executeQuery(conn, "SELECT datname FROM pg_database WHERE datallowconn;", progname, echo);
 210         PQfinish(conn);
 211
 212         for (i = 0; i < PQntuples(result); i++)
 213         {
 214                 char       *dbname = PQgetvalue(result, i, 0);
 215
 216                 if (!quiet)
 217                         fprintf(stderr, _("%s: clustering database \"%s\"\n"), progname, dbname);
 218
 219                 cluster_one_database(dbname, NULL,
 220                                                          host, port, username, password,
 221                                                          progname, echo, quiet);
 222         }
 223
 224         PQclear(result);
 225 }
 226
 227
 228 static void
 229 help(const char *progname)
 230 {
 231         printf(_("%s clusters all previously clustered tables in a database.\n\n"), progname);
 232         printf(_("Usage:\n"));
 233         printf(_("  %s [OPTION]... [DBNAME]\n"), progname);
 234         printf(_("\nOptions:\n"));
 235         printf(_("  -a, --all                 cluster all databases\n"));
 236         printf(_("  -d, --dbname=DBNAME       database to cluster\n"));
 237         printf(_("  -t, --table=TABLE         cluster specific table only\n"));
 238         printf(_("  -e, --echo                show the commands being sent to the server\n"));
 239         printf(_("  -q, --quiet               don't write any messages\n"));
 240         printf(_("  --help                    show this help, then exit\n"));
 241         printf(_("  --version                 output version information, then exit\n"));
 242         printf(_("\nConnection options:\n"));
 243         printf(_("  -h, --host=HOSTNAME       database server host or socket directory\n"));
 244         printf(_("  -p, --port=PORT           database server port\n"));
 245         printf(_("  -U, --username=USERNAME   user name to connect as\n"));
 246         printf(_("  -W, --password            prompt for password\n"));
 247         printf(_("\nRead the description of the SQL command CLUSTER for details.\n"));
 248         printf(_("\nReport bugs to <pgsql-bugs@postgresql.org>.\n"));
 249 }