donau

Donation authority for GNU Taler (experimental)
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donau-dbinit.c (3739B)

      1 /*
      2   This file is part of TALER
      3   Copyright (C) 2014-2022 Taler Systems SA
      4 
      5   TALER is free software; you can redistribute it and/or modify it under the
      6   terms of the GNU General Public License as published by the Free Software
      7   Foundation; either version 3, or (at your option) any later version.
      8 
      9   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
     10   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
     11   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
     12 
     13   You should have received a copy of the GNU General Public License along with
     14   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
     15 */
     16 /**
     17  * @file donau-tools/donau-dbinit.c
     18  * @brief Create tables for the donau database.
     19  * @author Florian Dold
     20  * @author Christian Grothoff
     21  */
     22 #include "donau_config.h"
     23 #include <gnunet/gnunet_util_lib.h>
     24 #include "donaudb_lib.h"
     25 #include "donau-database/drop_tables.h"
     26 #include "donau-database/create_tables.h"
     27 #include "donau_util.h"
     28 
     29 
     30 /* LSB-style exit status codes */
     31 #ifndef EXIT_INVALIDARGUMENT
     32 /**
     33  * Command-line arguments are invalid.
     34  * Restarting useless.
     35  */
     36 #define EXIT_INVALIDARGUMENT 2
     37 #endif
     38 
     39 #ifndef EXIT_NOPERMISSION
     40 /**
     41  * Permissions needed to run are not available.
     42  * Restarting useless.
     43  */
     44 #define EXIT_NOPERMISSION 4
     45 #endif
     46 
     47 #ifndef EXIT_NOTINSTALLED
     48 /**
     49  * Key resources are not installed.
     50  * Restarting useless.
     51  */
     52 #define EXIT_NOTINSTALLED 5
     53 #endif
     54 
     55 
     56 /**
     57  * Return value from main().
     58  */
     59 static int global_ret;
     60 
     61 /**
     62  * -r option: do full DB reset
     63  */
     64 static int reset_db;
     65 
     66 /**
     67  * Main function that will be run.
     68  *
     69  * @param cls closure
     70  * @param args remaining command-line arguments
     71  * @param cfgfile name of the configuration file used (for saving, can be NULL!)
     72  * @param cfg configuration
     73  */
     74 static void
     75 run (void *cls,
     76      char *const *args,
     77      const char *cfgfile,
     78      const struct GNUNET_CONFIGURATION_Handle *cfg)
     79 {
     80   struct DONAUDB_PostgresContext *ctx;
     81 
     82   (void) cls;
     83   (void) args;
     84   (void) cfgfile;
     85   if (NULL ==
     86       (ctx = DONAUDB_connect (cfg)))
     87   {
     88     fprintf (stderr,
     89              "Failed to initialize database ctx.\n");
     90     global_ret = EXIT_NOTINSTALLED;
     91     return;
     92   }
     93 
     94   if (reset_db)
     95   {
     96     if (GNUNET_OK !=
     97         DONAUDB_drop_tables (ctx))
     98     {
     99       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
    100                   "Could not drop tables as requested. Either database was not yet initialized, or permission denied. Consult the logs. Will still try to create new tables.\n");
    101     }
    102   }
    103 
    104   if (GNUNET_OK !=
    105       DONAUDB_create_tables (ctx))
    106   {
    107     fprintf (stderr,
    108              "Failed to initialize database.\n");
    109     DONAUDB_disconnect (ctx);
    110     global_ret = EXIT_NOPERMISSION;
    111     return;
    112   }
    113 
    114   DONAUDB_disconnect (ctx);
    115 }
    116 
    117 
    118 /**
    119  * The main function of the database initialization tool.
    120  * Used to initialize the Taler Donau's database.
    121  *
    122  * @param argc number of arguments from the command line
    123  * @param argv command line arguments
    124  * @return 0 ok, non-zero on error
    125  */
    126 int
    127 main (int argc,
    128       char *const *argv)
    129 {
    130   const struct GNUNET_GETOPT_CommandLineOption options[] = {
    131     GNUNET_GETOPT_option_flag ('r',
    132                                "reset",
    133                                "reset database (DANGEROUS: all existing data is lost!)",
    134                                &reset_db),
    135     GNUNET_GETOPT_OPTION_END
    136   };
    137   enum GNUNET_GenericReturnValue ret;
    138 
    139   ret = GNUNET_PROGRAM_run (
    140     DONAU_project_data (),
    141     argc, argv,
    142     "donau-dbinit",
    143     "Initialize Donau database",
    144     options,
    145     &run, NULL);
    146   if (GNUNET_SYSERR == ret)
    147     return EXIT_INVALIDARGUMENT;
    148   if (GNUNET_NO == ret)
    149     return EXIT_SUCCESS;
    150   return global_ret;
    151 }
    152 
    153 
    154 /* end of donau-dbinit.c */