pkgrm.cc

   1 //
   2 //  pkgutils
   3 //
   4 //  Copyright (c) 2000-2005 Per Liden
   5 //
   6 //  This program is free software; you can redistribute it and/or modify
   7 //  it under the terms of the GNU General Public License as published by
   8 //  the Free Software Foundation; either version 2 of the License, or
   9 //  (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 //  USA.
  20 //
  21
  22 #include "pkgrm.h"
  23 #include <unistd.h>
  24
  25 void pkgrm::run(int argc, char** argv)
  26 {
  27         //
  28         // Check command line options
  29         //
  30         string o_package;
  31         string o_root;
  32
  33         for (int i = 1; i < argc; i++) {
  34                 string option(argv[i]);
  35                 if (option == "-r" || option == "--root") {
  36                         assert_argument(argv, argc, i);
  37                         o_root = argv[i + 1];
  38                         i++;
  39                 } else if (option[0] == '-' || !o_package.empty()) {
  40                         throw runtime_error("invalid option " + option);
  41                 } else {
  42                         o_package = option;
  43                 }
  44         }
  45
  46         if (o_package.empty())
  47                 throw runtime_error("option missing");
  48
  49         //
  50         // Check UID
  51         //
  52         if (getuid())
  53                 throw runtime_error("only root can remove packages");
  54
  55         //
  56         // Remove package
  57         //
  58         {
  59                 db_lock lock(o_root, true);
  60                 db_open(o_root);
  61
  62                 if (!db_find_pkg(o_package))
  63                         throw runtime_error("package " + o_package + " not installed");
  64
  65                 db_rm_pkg(o_package);
  66                 ldconfig();
  67                 db_commit();
  68         }
  69 }
  70
  71 void pkgrm::print_help() const
  72 {
  73         cout << "usage: " << utilname << " [options] <package>" << endl
  74              << "options:" << endl
  75              << "  -r, --root <path>   specify alternative installation root" << endl
  76              << "  -v, --version       print version and exit" << endl
  77              << "  -h, --help          print help and exit" << endl;
  78 }