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

   1 /*-------------------------------------------------------------------------
   2  *
   3  * createdb
   4  *
   5  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
   6  * Portions Copyright (c) 1994, Regents of the University of California
   7  *
   8  * $PostgreSQL: pgsql/src/bin/scripts/createdb.c,v 1.10 2004/06/01 02:54:09 momjian Exp $
   9  *
  10  *-------------------------------------------------------------------------
  11  */
  12
  13 #include "postgres_fe.h"
  14 #include "common.h"
  15 #include "dumputils.h"
  16
  17 #include "mb/pg_wchar.h"
  18
  19
  20 static void help(const char *progname);
  21
  22
  23 int
  24 main(int argc, char *argv[])
  25 {
  26         static struct option long_options[] = {
  27                 {"host", required_argument, NULL, 'h'},
  28                 {"port", required_argument, NULL, 'p'},
  29                 {"username", required_argument, NULL, 'U'},
  30                 {"password", no_argument, NULL, 'W'},
  31                 {"echo", no_argument, NULL, 'e'},
  32                 {"quiet", no_argument, NULL, 'q'},
  33                 {"owner", required_argument, NULL, 'O'},
  34                 {"location", required_argument, NULL, 'D'},
  35                 {"template", required_argument, NULL, 'T'},
  36                 {"encoding", required_argument, NULL, 'E'},
  37                 {NULL, 0, NULL, 0}
  38         };
  39
  40         const char *progname;
  41         int                     optindex;
  42         int                     c;
  43
  44         const char *dbname = NULL;
  45         char       *comment = NULL;
  46         char       *host = NULL;
  47         char       *port = NULL;
  48         char       *username = NULL;
  49         bool            password = false;
  50         bool            echo = false;
  51         bool            quiet = false;
  52         char       *owner = NULL;
  53         char       *location = NULL;
  54         char       *template = NULL;
  55         char       *encoding = NULL;
  56
  57         PQExpBufferData sql;
  58
  59         PGconn     *conn;
  60         PGresult   *result;
  61
  62         progname = get_progname(argv[0]);
  63         set_pglocale(argv[0], "pgscripts");
  64
  65         handle_help_version_opts(argc, argv, "createdb", help);
  66
  67         while ((c = getopt_long(argc, argv, "h:p:U:WeqO:D:T:E:", long_options, &optindex)) != -1)
  68         {
  69                 switch (c)
  70                 {
  71                         case 'h':
  72                                 host = optarg;
  73                                 break;
  74                         case 'p':
  75                                 port = optarg;
  76                                 break;
  77                         case 'U':
  78                                 username = optarg;
  79                                 break;
  80                         case 'W':
  81                                 password = true;
  82                                 break;
  83                         case 'e':
  84                                 echo = true;
  85                                 break;
  86                         case 'q':
  87                                 quiet = true;
  88                                 break;
  89                         case 'O':
  90                                 owner = optarg;
  91                                 break;
  92                         case 'D':
  93                                 location = optarg;
  94                                 break;
  95                         case 'T':
  96                                 template = optarg;
  97                                 break;
  98                         case 'E':
  99                                 encoding = optarg;
 100                                 break;
 101                         default:
 102                                 fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 103                                 exit(1);
 104                 }
 105         }
 106
 107         switch (argc - optind)
 108         {
 109                 case 0:
 110                         break;
 111                 case 1:
 112                         dbname = argv[optind];
 113                         break;
 114                 case 2:
 115                         dbname = argv[optind];
 116                         comment = argv[optind + 1];
 117                         break;
 118                 default:
 119                         fprintf(stderr, _("%s: too many command-line arguments (first is \"%s\")\n"),
 120                                         progname, argv[optind + 2]);
 121                         fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 122                         exit(1);
 123         }
 124
 125         if (encoding)
 126         {
 127                 if (pg_char_to_encoding(encoding) < 0)
 128                 {
 129                         fprintf(stderr, _("%s: \"%s\" is not a valid encoding name\n"),
 130                                         progname, encoding);
 131                         exit(1);
 132                 }
 133         }
 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         initPQExpBuffer(&sql);
 146
 147         appendPQExpBuffer(&sql, "CREATE DATABASE %s",
 148                                           fmtId(dbname));
 149
 150         if (owner)
 151                 appendPQExpBuffer(&sql, " OWNER %s", fmtId(owner));
 152         if (location)
 153         {
 154                 appendPQExpBuffer(&sql, " LOCATION ");
 155                 appendStringLiteral(&sql, location, false);
 156         }
 157         if (encoding)
 158                 appendPQExpBuffer(&sql, " ENCODING '%s'", encoding);
 159         if (template)
 160                 appendPQExpBuffer(&sql, " TEMPLATE %s", fmtId(template));
 161         appendPQExpBuffer(&sql, ";\n");
 162
 163         conn = connectDatabase("template1", host, port, username, password, progname);
 164
 165         if (echo)
 166                 printf("%s", sql.data);
 167         result = PQexec(conn, sql.data);
 168
 169         if (PQresultStatus(result) != PGRES_COMMAND_OK)
 170         {
 171                 fprintf(stderr, _("%s: database creation failed: %s"),
 172                                 progname, PQerrorMessage(conn));
 173                 PQfinish(conn);
 174                 exit(1);
 175         }
 176
 177         PQclear(result);
 178         PQfinish(conn);
 179
 180         if (!quiet)
 181         {
 182                 puts("CREATE DATABASE");
 183                 fflush(stdout);
 184         }
 185
 186         if (comment)
 187         {
 188                 printfPQExpBuffer(&sql, "COMMENT ON DATABASE %s IS ", fmtId(dbname));
 189                 appendStringLiteral(&sql, comment, false);
 190                 appendPQExpBuffer(&sql, ";\n");
 191
 192                 conn = connectDatabase(dbname, host, port, username, password, progname);
 193                 if (echo)
 194                         printf("%s", sql.data);
 195                 result = PQexec(conn, sql.data);
 196
 197                 if (PQresultStatus(result) != PGRES_COMMAND_OK)
 198                 {
 199                         fprintf(stderr, _("%s: comment creation failed (database was created): %s"),
 200                                         progname, PQerrorMessage(conn));
 201                         PQfinish(conn);
 202                         exit(1);
 203                 }
 204
 205                 PQfinish(conn);
 206                 if (!quiet)
 207                 {
 208                         puts("COMMENT");
 209                         fflush(stdout);
 210                 }
 211         }
 212
 213         exit(0);
 214 }
 215
 216
 217 static void
 218 help(const char *progname)
 219 {
 220         printf(_("%s creates a PostgreSQL database.\n\n"), progname);
 221         printf(_("Usage:\n"));
 222         printf(_("  %s [OPTION]... [DBNAME] [DESCRIPTION]\n"), progname);
 223         printf(_("\nOptions:\n"));
 224         printf(_("  -D, --location=PATH       alternative place to store the database\n"));
 225         printf(_("  -E, --encoding=ENCODING   encoding for the database\n"));
 226         printf(_("  -O, --owner=OWNER         database user to own the new database\n"));
 227         printf(_("  -T, --template=TEMPLATE   template database to copy\n"));
 228         printf(_("  -e, --echo                show the commands being sent to the server\n"));
 229         printf(_("  -q, --quiet               don't write any messages\n"));
 230         printf(_("  --help                    show this help, then exit\n"));
 231         printf(_("  --version                 output version information, then exit\n"));
 232         printf(_("\nConnection options:\n"));
 233         printf(_("  -h, --host=HOSTNAME       database server host or socket directory\n"));
 234         printf(_("  -p, --port=PORT           database server port\n"));
 235         printf(_("  -U, --username=USERNAME   user name to connect as\n"));
 236         printf(_("  -W, --password            prompt for password\n"));
 237         printf(_("\nBy default, a database with the same name as the current user is created.\n"));
 238         printf(_("\nReport bugs to <pgsql-bugs@postgresql.org>.\n"));
 239 }