src/bin/pkgman/command_uninstall.cpp

   1 /*
   2  * Copyright 2013, Haiku, Inc. All Rights Reserved.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Ingo Weinhold <ingo_weinhold@gmx.de>
   7  */
   8
   9
  10 #include <getopt.h>
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13
  14 #include "Command.h"
  15 #include "pkgman.h"
  16 #include "PackageManager.h"
  17
  18
  19 // TODO: internationalization!
  20
  21
  22 using namespace BPackageKit;
  23 using namespace BPackageKit::BPrivate;
  24
  25
  26 static const char* const kShortUsage =
  27         "  %command% <package> ...\n"
  28         "    Uninstalls one or more packages.\n";
  29
  30 static const char* const kLongUsage =
  31         "Usage: %program% %command% <package> ...\n"
  32         "Uninstalls the specified packages.\n"
  33         "\n"
  34         "Options:\n"
  35         "  --debug <level>\n"
  36         "    Print debug output. <level> should be between 0 (no debug output,\n"
  37         "    the default) and 10 (most debug output).\n"
  38         "  -H, --home\n"
  39         "    Uninstall the packages from the user's home directory. Default is to\n"
  40         "    uninstall from the system directory.\n"
  41         "  -y\n"
  42         "    Non-interactive mode. Automatically confirm changes, but fail when\n"
  43         "    encountering problems.\n"
  44         "\n";
  45
  46
  47 DEFINE_COMMAND(UninstallCommand, "uninstall", kShortUsage, kLongUsage,
  48         kCommandCategoryPackages)
  49
  50
  51 int
  52 UninstallCommand::Execute(int argc, const char* const* argv)
  53 {
  54         BPackageInstallationLocation location
  55                 = B_PACKAGE_INSTALLATION_LOCATION_SYSTEM;
  56         bool interactive = true;
  57
  58         while (true) {
  59                 static struct option sLongOptions[] = {
  60                         { "debug", required_argument, 0, OPTION_DEBUG },
  61                         { "help", no_argument, 0, 'h' },
  62                         { "home", no_argument, 0, 'H' },
  63                         { 0, 0, 0, 0 }
  64                 };
  65
  66                 opterr = 0; // don't print errors
  67                 int c = getopt_long(argc, (char**)argv, "hHy", sLongOptions, NULL);
  68                 if (c == -1)
  69                         break;
  70
  71                 if (fCommonOptions.HandleOption(c))
  72                         continue;
  73
  74                 switch (c) {
  75                         case 'h':
  76                                 PrintUsageAndExit(false);
  77                                 break;
  78
  79                         case 'H':
  80                                 location = B_PACKAGE_INSTALLATION_LOCATION_HOME;
  81                                 break;
  82
  83                         case 'y':
  84                                 interactive = false;
  85                                 break;
  86
  87                         default:
  88                                 PrintUsageAndExit(true);
  89                                 break;
  90                 }
  91         }
  92
  93         // The remaining arguments are the packages to be uninstalled.
  94         if (argc < optind + 1)
  95                 PrintUsageAndExit(true);
  96
  97         int packageCount = argc - optind;
  98         const char* const* packages = argv + optind;
  99
 100         // perform the installation
 101         PackageManager packageManager(location, interactive);
 102         packageManager.SetDebugLevel(fCommonOptions.DebugLevel());
 103         packageManager.Uninstall(packages, packageCount);
 104
 105         return 0;
 106 }