src/distribute.cxx

   1 //
   2 // Copyright (C) 2008 Francesco Salvestrini
   3 //
   4 // This program is free software; you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation; either version 2 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License along
  15 // with this program; if not, write to the Free Software Foundation, Inc.,
  16 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17 //
  18
  19 #include "config.h"
  20
  21 #include <unistd.h>
  22 #include <getopt.h>
  23 #include <string>
  24 #include <iostream>
  25
  26 #include "misc/debug.h"
  27 #include "misc/environment.h"
  28
  29 void version(void)
  30 {
  31         std::cout
  32                 << PACKAGE << " (" << PACKAGE_NAME  << ") " << PACKAGE_VERSION <<                    std::endl
  33                 <<                                                                                   std::endl
  34                 << "Copyright (C) 2008 Francesco Salvestrini" <<                                     std::endl
  35                 <<                                                                                   std::endl
  36                 << "This is free software.  You may redistribute copies of it under the terms of" << std::endl
  37                 << "the GNU General Public License <http://www.gnu.org/licenses/gpl.html>." <<       std::endl
  38                 << "There is NO WARRANTY, to the extent permitted by law." <<                        std::endl;
  39
  40 }
  41
  42 void help(void)
  43 {
  44         std::cout
  45                 << "Usage: " << PACKAGE << " [OPTION]... "<<                     std::endl
  46                 <<                                                               std::endl
  47                 << "Options: " <<                                                std::endl
  48                 << "  -t, --time-out=TIME    start time-out (seconds)" <<        std::endl
  49                 << "  -j, --job=FILE         use FILE as job to distribute" <<   std::endl
  50                 << "  -d, --debug            enable debugging traces" <<         std::endl
  51                 << "  -h, --help             print this help, then exit" <<      std::endl
  52                 << "  -V, --version          print version number, then exit" << std::endl
  53                 <<                                                               std::endl
  54                 << "Report bugs to <" << PACKAGE_BUGREPORT << ">" <<             std::endl;
  55 }
  56
  57 void hint(const std::string & message)
  58 {
  59         BUG_ON(message.size() == 0);
  60
  61         std::cout
  62                 << message <<                                            std::endl
  63                 << "Try `" << PACKAGE << " -h' for more information." << std::endl;
  64 }
  65
  66 int main(int argc, char * argv[])
  67 {
  68         try {
  69                 int         time_out = 0;  // XXX FIXME: Change to a constant
  70                 std::string job      = ""; // XXX FIXME: Change to a constant
  71
  72                 int c;
  73                 //int digit_optind = 0;
  74                 while (1) {
  75                         //int this_option_optind = optind ? optind : 1;
  76                         int option_index       = 0;
  77
  78                         static struct option long_options[] = {
  79                                 { "job",      1, 0, 'j' },
  80                                 { "time-out", 1, 0, 't' },
  81                                 { "debug",    0, 0, 'd' },
  82                                 { "version",  0, 0, 'V' },
  83                                 { "help",     0, 0, 'h' },
  84                                 { 0,          0, 0, 0   }
  85                         };
  86
  87                         c = getopt_long(argc, argv, "t:j:dVh",
  88                                         long_options, &option_index);
  89                         if (c == -1) {
  90                                 break;
  91                         }
  92
  93                         switch (c) {
  94                                 case 't':
  95                                         //
  96                                         // XXX FIXME:
  97                                         //     The current solution is ugly.
  98                                         //     Add modifiers (s, m, h) to
  99                                         //     this option in order to use
 100                                         //     different time granularity.
 101                                         //
 102                                         time_out = atoi(optarg);
 103                                         if (time_out < 0) {
 104                                                 hint("Wrong time-out value");
 105                                                 return 1;
 106                                         }
 107                                         break;
 108                                 case 'j':
 109                                         job = optarg;
 110                                         break;
 111                                 case 'd':
 112                                         trace_level = TR_LVL_DEBUG;
 113                                         break;
 114                                 case 'V':
 115                                         version();
 116                                         return 0;
 117                                 case 'h':
 118                                         help();
 119                                         return 0;
 120                                 case '?':
 121                                         hint("Unrecognized option");
 122                                         return 1;
 123
 124                                 default:
 125                                         BUG();
 126                                         return 1;
 127                         }
 128                 }
 129
 130                 // XXX FIXME: Add options related checks here
 131
 132                 // Build configuration file path
 133                 std::string homedir = Environment::get("HOME");
 134                 std::string confdir =
 135                         homedir +
 136                         std::string("/") +
 137                         std::string(".") +
 138                         std::string(PACKAGE_TARNAME);
 139
 140                 // Dump (acquired and derived) infos
 141                 TR_DBG("Time out:           '%d'\n", time_out);
 142                 TR_DBG("Job:                '%s'\n", job.c_str());
 143                 TR_DBG("Home directory:     '%s'\n", homedir.c_str());
 144                 TR_DBG("Configuration file: '%s'\n", confdir.c_str());
 145
 146                 // Do the supposed work
 147                 MISSING_CODE();
 148         } catch (...) {
 149                 BUG();
 150         };
 151
 152         return 0;
 153 }