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Sourcecode: postgresql-8.4 version File versions

createdb.c

/*-------------------------------------------------------------------------
 *
 * createdb
 *
 * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * $PostgreSQL$
 *
 *-------------------------------------------------------------------------
 */
#include "postgres_fe.h"

#include "common.h"
#include "dumputils.h"


static void help(const char *progname);


int
main(int argc, char *argv[])
{
      static struct option long_options[] = {
            {"host", required_argument, NULL, 'h'},
            {"port", required_argument, NULL, 'p'},
            {"username", required_argument, NULL, 'U'},
            {"no-password", no_argument, NULL, 'w'},
            {"password", no_argument, NULL, 'W'},
            {"echo", no_argument, NULL, 'e'},
            {"owner", required_argument, NULL, 'O'},
            {"tablespace", required_argument, NULL, 'D'},
            {"template", required_argument, NULL, 'T'},
            {"encoding", required_argument, NULL, 'E'},
            {"lc-collate", required_argument, NULL, 1},
            {"lc-ctype", required_argument, NULL, 2},
            {"locale", required_argument, NULL, 'l'},
            {NULL, 0, NULL, 0}
      };

      const char *progname;
      int               optindex;
      int               c;

      const char *dbname = NULL;
      char     *comment = NULL;
      char     *host = NULL;
      char     *port = NULL;
      char     *username = NULL;
      enum trivalue prompt_password = TRI_DEFAULT;
      bool        echo = false;
      char     *owner = NULL;
      char     *tablespace = NULL;
      char     *template = NULL;
      char     *encoding = NULL;
      char     *lc_collate = NULL;
      char     *lc_ctype = NULL;
      char     *locale = NULL;

      PQExpBufferData sql;

      PGconn         *conn;
      PGresult   *result;

      progname = get_progname(argv[0]);
      set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pgscripts"));

      handle_help_version_opts(argc, argv, "createdb", help);

      while ((c = getopt_long(argc, argv, "h:p:U:wWeO:D:T:E:l:", long_options, &optindex)) != -1)
      {
            switch (c)
            {
                  case 'h':
                        host = optarg;
                        break;
                  case 'p':
                        port = optarg;
                        break;
                  case 'U':
                        username = optarg;
                        break;
                  case 'w':
                        prompt_password = TRI_NO;
                        break;
                  case 'W':
                        prompt_password = TRI_YES;
                        break;
                  case 'e':
                        echo = true;
                        break;
                  case 'O':
                        owner = optarg;
                        break;
                  case 'D':
                        tablespace = optarg;
                        break;
                  case 'T':
                        template = optarg;
                        break;
                  case 'E':
                        encoding = optarg;
                        break;
                  case 1:
                        lc_collate = optarg;
                        break;
                  case 2:
                        lc_ctype = optarg;
                        break;
                  case 'l':
                        locale = optarg;
                        break;
                  default:
                        fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
                        exit(1);
            }
      }

      switch (argc - optind)
      {
            case 0:
                  break;
            case 1:
                  dbname = argv[optind];
                  break;
            case 2:
                  dbname = argv[optind];
                  comment = argv[optind + 1];
                  break;
            default:
                  fprintf(stderr, _("%s: too many command-line arguments (first is \"%s\")\n"),
                              progname, argv[optind + 2]);
                  fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
                  exit(1);
      }

      if (locale)
      {
            if (lc_ctype)
            {
                  fprintf(stderr, _("%s: only one of --locale and --lc-ctype can be specified\n"),
                              progname);
                  exit(1);
            }
            if (lc_collate)
            {
                  fprintf(stderr, _("%s: only one of --locale and --lc-collate can be specified\n"),
                              progname);
                  exit(1);
            }
            lc_ctype = locale;
            lc_collate = locale;
      }

      if (encoding)
      {
            if (pg_char_to_encoding(encoding) < 0)
            {
                  fprintf(stderr, _("%s: \"%s\" is not a valid encoding name\n"),
                              progname, encoding);
                  exit(1);
            }
      }

      if (dbname == NULL)
      {
            if (getenv("PGDATABASE"))
                  dbname = getenv("PGDATABASE");
            else if (getenv("PGUSER"))
                  dbname = getenv("PGUSER");
            else
                  dbname = get_user_name(progname);
      }

      initPQExpBuffer(&sql);

      appendPQExpBuffer(&sql, "CREATE DATABASE %s",
                                fmtId(dbname));

      if (owner)
            appendPQExpBuffer(&sql, " OWNER %s", fmtId(owner));
      if (tablespace)
            appendPQExpBuffer(&sql, " TABLESPACE %s", fmtId(tablespace));
      if (encoding)
            appendPQExpBuffer(&sql, " ENCODING '%s'", encoding);
      if (template)
            appendPQExpBuffer(&sql, " TEMPLATE %s", fmtId(template));
      if (lc_collate)
            appendPQExpBuffer(&sql, " LC_COLLATE '%s'", lc_collate);
      if (lc_ctype)
            appendPQExpBuffer(&sql, " LC_CTYPE '%s'", lc_ctype);

      appendPQExpBuffer(&sql, ";\n");

      conn = connectDatabase(strcmp(dbname, "postgres") == 0 ? "template1" : "postgres",
                                       host, port, username, prompt_password, progname);

      if (echo)
            printf("%s", sql.data);
      result = PQexec(conn, sql.data);

      if (PQresultStatus(result) != PGRES_COMMAND_OK)
      {
            fprintf(stderr, _("%s: database creation failed: %s"),
                        progname, PQerrorMessage(conn));
            PQfinish(conn);
            exit(1);
      }

      PQclear(result);
      PQfinish(conn);

      if (comment)
      {
            conn = connectDatabase(dbname, host, port, username, prompt_password, progname);

            printfPQExpBuffer(&sql, "COMMENT ON DATABASE %s IS ", fmtId(dbname));
            appendStringLiteralConn(&sql, comment, conn);
            appendPQExpBuffer(&sql, ";\n");

            if (echo)
                  printf("%s", sql.data);
            result = PQexec(conn, sql.data);

            if (PQresultStatus(result) != PGRES_COMMAND_OK)
            {
                  fprintf(stderr, _("%s: comment creation failed (database was created): %s"),
                              progname, PQerrorMessage(conn));
                  PQfinish(conn);
                  exit(1);
            }

            PQclear(result);
            PQfinish(conn);
      }

      exit(0);
}


static void
help(const char *progname)
{
      printf(_("%s creates a PostgreSQL database.\n\n"), progname);
      printf(_("Usage:\n"));
      printf(_("  %s [OPTION]... [DBNAME] [DESCRIPTION]\n"), progname);
      printf(_("\nOptions:\n"));
      printf(_("  -D, --tablespace=TABLESPACE  default tablespace for the database\n"));
      printf(_("  -e, --echo                   show the commands being sent to the server\n"));
      printf(_("  -E, --encoding=ENCODING      encoding for the database\n"));
      printf(_("  -l, --locale=LOCALE          locale settings for the database\n"));
      printf(_("      --lc-collate=LOCALE      LC_COLLATE setting for the database\n"));
      printf(_("      --lc-ctype=LOCALE        LC_CTYPE setting for the database\n"));
      printf(_("  -O, --owner=OWNER            database user to own the new database\n"));
      printf(_("  -T, --template=TEMPLATE      template database to copy\n"));
      printf(_("  --help                       show this help, then exit\n"));
      printf(_("  --version                    output version information, then exit\n"));
      printf(_("\nConnection options:\n"));
      printf(_("  -h, --host=HOSTNAME          database server host or socket directory\n"));
      printf(_("  -p, --port=PORT              database server port\n"));
      printf(_("  -U, --username=USERNAME      user name to connect as\n"));
      printf(_("  -w, --no-password            never prompt for password\n"));
      printf(_("  -W, --password               force password prompt\n"));
      printf(_("\nBy default, a database with the same name as the current user is created.\n"));
      printf(_("\nReport bugs to <pgsql-bugs@postgresql.org>.\n"));
}

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