src/bin/scripts/createdb.c

   1 /*-------------------------------------------------------------------------
   2  *
   3  * createdb
   4  *
   5  * Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
   6  * Portions Copyright (c) 1994, Regents of the University of California
   7  *
   8  * src/bin/scripts/createdb.c
   9  *
  10  *-------------------------------------------------------------------------
  11  */
  12 #include "postgres_fe.h"
  13
  14 #include "common.h"
  15 #include "dumputils.h"
  16
  17
  18 static void help(const char *progname);
  19
  20
  21 int
  22 main(int argc, char *argv[])
  23 {
  24         static struct option long_options[] = {
  25                 {"host", required_argument, NULL, 'h'},
  26                 {"port", required_argument, NULL, 'p'},
  27                 {"username", required_argument, NULL, 'U'},
  28                 {"no-password", no_argument, NULL, 'w'},
  29                 {"password", no_argument, NULL, 'W'},
  30                 {"echo", no_argument, NULL, 'e'},
  31                 {"owner", required_argument, NULL, 'O'},
  32                 {"tablespace", required_argument, NULL, 'D'},
  33                 {"template", required_argument, NULL, 'T'},
  34                 {"encoding", required_argument, NULL, 'E'},
  35                 {"lc-collate", required_argument, NULL, 1},
  36                 {"lc-ctype", required_argument, NULL, 2},
  37                 {"locale", required_argument, NULL, 'l'},
  38                 {NULL, 0, NULL, 0}
  39         };
  40
  41         const char *progname;
  42         int                     optindex;
  43         int                     c;
  44
  45         const char *dbname = NULL;
  46         char       *comment = NULL;
  47         char       *host = NULL;
  48         char       *port = NULL;
  49         char       *username = NULL;
  50         enum trivalue prompt_password = TRI_DEFAULT;
  51         bool            echo = false;
  52         char       *owner = NULL;
  53         char       *tablespace = NULL;
  54         char       *template = NULL;
  55         char       *encoding = NULL;
  56         char       *lc_collate = NULL;
  57         char       *lc_ctype = NULL;
  58         char       *locale = NULL;
  59
  60         PQExpBufferData sql;
  61
  62         PGconn     *conn;
  63         PGresult   *result;
  64
  65         progname = get_progname(argv[0]);
  66         set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pgscripts"));
  67
  68         handle_help_version_opts(argc, argv, "createdb", help);
  69
  70         while ((c = getopt_long(argc, argv, "h:p:U:wWeO:D:T:E:l:", long_options, &optindex)) != -1)
  71         {
  72                 switch (c)
  73                 {
  74                         case 'h':
  75                                 host = optarg;
  76                                 break;
  77                         case 'p':
  78                                 port = optarg;
  79                                 break;
  80                         case 'U':
  81                                 username = optarg;
  82                                 break;
  83                         case 'w':
  84                                 prompt_password = TRI_NO;
  85                                 break;
  86                         case 'W':
  87                                 prompt_password = TRI_YES;
  88                                 break;
  89                         case 'e':
  90                                 echo = true;
  91                                 break;
  92                         case 'O':
  93                                 owner = optarg;
  94                                 break;
  95                         case 'D':
  96                                 tablespace = optarg;
  97                                 break;
  98                         case 'T':
  99                                 template = optarg;
 100                                 break;
 101                         case 'E':
 102                                 encoding = optarg;
 103                                 break;
 104                         case 1:
 105                                 lc_collate = optarg;
 106                                 break;
 107                         case 2:
 108                                 lc_ctype = optarg;
 109                                 break;
 110                         case 'l':
 111                                 locale = optarg;
 112                                 break;
 113                         default:
 114                                 fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 115                                 exit(1);
 116                 }
 117         }
 118
 119         switch (argc - optind)
 120         {
 121                 case 0:
 122                         break;
 123                 case 1:
 124                         dbname = argv[optind];
 125                         break;
 126                 case 2:
 127                         dbname = argv[optind];
 128                         comment = argv[optind + 1];
 129                         break;
 130                 default:
 131                         fprintf(stderr, _("%s: too many command-line arguments (first is \"%s\")\n"),
 132                                         progname, argv[optind + 2]);
 133                         fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 134                         exit(1);
 135         }
 136
 137         if (locale)
 138         {
 139                 if (lc_ctype)
 140                 {
 141                         fprintf(stderr, _("%s: only one of --locale and --lc-ctype can be specified\n"),
 142                                         progname);
 143                         exit(1);
 144                 }
 145                 if (lc_collate)
 146                 {
 147                         fprintf(stderr, _("%s: only one of --locale and --lc-collate can be specified\n"),
 148                                         progname);
 149                         exit(1);
 150                 }
 151                 lc_ctype = locale;
 152                 lc_collate = locale;
 153         }
 154
 155         if (encoding)
 156         {
 157                 if (pg_char_to_encoding(encoding) < 0)
 158                 {
 159                         fprintf(stderr, _("%s: \"%s\" is not a valid encoding name\n"),
 160                                         progname, encoding);
 161                         exit(1);
 162                 }
 163         }
 164
 165         if (dbname == NULL)
 166         {
 167                 if (getenv("PGDATABASE"))
 168                         dbname = getenv("PGDATABASE");
 169                 else if (getenv("PGUSER"))
 170                         dbname = getenv("PGUSER");
 171                 else
 172                         dbname = get_user_name(progname);
 173         }
 174
 175         initPQExpBuffer(&sql);
 176
 177         appendPQExpBuffer(&sql, "CREATE DATABASE %s",
 178                                           fmtId(dbname));
 179
 180         if (owner)
 181                 appendPQExpBuffer(&sql, " OWNER %s", fmtId(owner));
 182         if (tablespace)
 183                 appendPQExpBuffer(&sql, " TABLESPACE %s", fmtId(tablespace));
 184         if (encoding)
 185                 appendPQExpBuffer(&sql, " ENCODING '%s'", encoding);
 186         if (template)
 187                 appendPQExpBuffer(&sql, " TEMPLATE %s", fmtId(template));
 188         if (lc_collate)
 189                 appendPQExpBuffer(&sql, " LC_COLLATE '%s'", lc_collate);
 190         if (lc_ctype)
 191                 appendPQExpBuffer(&sql, " LC_CTYPE '%s'", lc_ctype);
 192
 193         appendPQExpBuffer(&sql, ";\n");
 194
 195         conn = connectDatabase(strcmp(dbname, "postgres") == 0 ? "template1" : "postgres",
 196                                                    host, port, username, prompt_password, progname);
 197
 198         if (echo)
 199                 printf("%s", sql.data);
 200         result = PQexec(conn, sql.data);
 201
 202         if (PQresultStatus(result) != PGRES_COMMAND_OK)
 203         {
 204                 fprintf(stderr, _("%s: database creation failed: %s"),
 205                                 progname, PQerrorMessage(conn));
 206                 PQfinish(conn);
 207                 exit(1);
 208         }
 209
 210         PQclear(result);
 211         PQfinish(conn);
 212
 213         if (comment)
 214         {
 215                 conn = connectDatabase(dbname, host, port, username, prompt_password, progname);
 216
 217                 printfPQExpBuffer(&sql, "COMMENT ON DATABASE %s IS ", fmtId(dbname));
 218                 appendStringLiteralConn(&sql, comment, conn);
 219                 appendPQExpBuffer(&sql, ";\n");
 220
 221                 if (echo)
 222                         printf("%s", sql.data);
 223                 result = PQexec(conn, sql.data);
 224
 225                 if (PQresultStatus(result) != PGRES_COMMAND_OK)
 226                 {
 227                         fprintf(stderr, _("%s: comment creation failed (database was created): %s"),
 228                                         progname, PQerrorMessage(conn));
 229                         PQfinish(conn);
 230                         exit(1);
 231                 }
 232
 233                 PQclear(result);
 234                 PQfinish(conn);
 235         }
 236
 237         exit(0);
 238 }
 239
 240
 241 static void
 242 help(const char *progname)
 243 {
 244         printf(_("%s creates a PostgreSQL database.\n\n"), progname);
 245         printf(_("Usage:\n"));
 246         printf(_("  %s [OPTION]... [DBNAME] [DESCRIPTION]\n"), progname);
 247         printf(_("\nOptions:\n"));
 248         printf(_("  -D, --tablespace=TABLESPACE  default tablespace for the database\n"));
 249         printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 250         printf(_("  -E, --encoding=ENCODING      encoding for the database\n"));
 251         printf(_("  -l, --locale=LOCALE          locale settings for the database\n"));
 252         printf(_("      --lc-collate=LOCALE      LC_COLLATE setting for the database\n"));
 253         printf(_("      --lc-ctype=LOCALE        LC_CTYPE setting for the database\n"));
 254         printf(_("  -O, --owner=OWNER            database user to own the new database\n"));
 255         printf(_("  -T, --template=TEMPLATE      template database to copy\n"));
 256         printf(_("  --help                       show this help, then exit\n"));
 257         printf(_("  --version                    output version information, then exit\n"));
 258         printf(_("\nConnection options:\n"));
 259         printf(_("  -h, --host=HOSTNAME          database server host or socket directory\n"));
 260         printf(_("  -p, --port=PORT              database server port\n"));
 261         printf(_("  -U, --username=USERNAME      user name to connect as\n"));
 262         printf(_("  -w, --no-password            never prompt for password\n"));
 263         printf(_("  -W, --password               force password prompt\n"));
 264         printf(_("\nBy default, a database with the same name as the current user is created.\n"));
 265         printf(_("\nReport bugs to <pgsql-bugs@postgresql.org>.\n"));
 266 }