cmdline/apt-config.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: apt-config.cc,v 1.9 2002/02/15 03:40:00 jgg Exp $
   4 /* ######################################################################
   5
   6    APT Config - Program to manipulate APT configuration files
   7
   8    This program will parse a config file and then do something with it.
   9
  10    Commands:
  11      shell - Shell mode. After this a series of word pairs should occure.
  12              The first is the environment var to set and the second is
  13              the key to set it from. Use like:
  14  eval `apt-config shell QMode apt::QMode`
  15
  16    ##################################################################### */
  17                                                                         /*}}}*/
  18 // Include Files                                                        /*{{{*/
  19 #include <apt-pkg/cmndline.h>
  20 #include <apt-pkg/error.h>
  21 #include <apt-pkg/init.h>
  22 #include <apt-pkg/strutl.h>
  23
  24 #include <config.h>
  25 #include <apti18n.h>
  26
  27 #include <locale.h>
  28 #include <iostream>
  29 #include <string>
  30                                                                         /*}}}*/
  31
  32 // DoShell - Handle the shell command                                   /*{{{*/
  33 // ---------------------------------------------------------------------
  34 /* */
  35 bool DoShell(CommandLine &CmdL)
  36 {
  37    for (const char **I = CmdL.FileList + 1; *I != 0; I += 2)
  38    {
  39       if (I[1] == 0 || strlen(I[1]) == 0)
  40          return _error->Error(_("Arguments not in pairs"));
  41
  42       string key = I[1];
  43       if (key.end()[-1] == '/') // old directory format
  44          key.append("d");
  45
  46       if (_config->ExistsAny(key.c_str()))
  47          cout << *I << "='" <<
  48                  SubstVar(_config->FindAny(key.c_str()),"'","'\\''") << '\'' << endl;
  49
  50    }
  51
  52    return true;
  53 }
  54                                                                         /*}}}*/
  55 // DoDump - Dump the configuration space                                /*{{{*/
  56 // ---------------------------------------------------------------------
  57 /* */
  58 bool DoDump(CommandLine &CmdL)
  59 {
  60    _config->Dump();
  61    return true;
  62 }
  63                                                                         /*}}}*/
  64 // ShowHelp - Show the help screen                                      /*{{{*/
  65 // ---------------------------------------------------------------------
  66 /* */
  67 int ShowHelp()
  68 {
  69    ioprintf(cout,_("%s %s for %s %s compiled on %s %s\n"),PACKAGE,VERSION,
  70             COMMON_OS,COMMON_CPU,__DATE__,__TIME__);
  71    if (_config->FindB("version") == true)
  72       return 0;
  73
  74    cout <<
  75     _("Usage: apt-config [options] command\n"
  76       "\n"
  77       "apt-config is a simple tool to read the APT config file\n"
  78       "\n"
  79       "Commands:\n"
  80       "   shell - Shell mode\n"
  81       "   dump - Show the configuration\n"
  82       "\n"
  83       "Options:\n"
  84       "  -h   This help text.\n"
  85       "  -c=? Read this configuration file\n"
  86       "  -o=? Set an arbitary configuration option, eg -o dir::cache=/tmp\n");
  87    return 0;
  88 }
  89                                                                         /*}}}*/
  90
  91 int main(int argc,const char *argv[])
  92 {
  93    CommandLine::Args Args[] = {
  94       {'h',"help","help",0},
  95       {'v',"version","version",0},
  96       {'c',"config-file",0,CommandLine::ConfigFile},
  97       {'o',"option",0,CommandLine::ArbItem},
  98       {0,0,0,0}};
  99    CommandLine::Dispatch Cmds[] = {{"shell",&DoShell},
 100                                    {"dump",&DoDump},
 101                                    {0,0}};
 102
 103    // Set up gettext support
 104    setlocale(LC_ALL,"");
 105    textdomain(PACKAGE);
 106
 107    // Parse the command line and initialize the package library
 108    CommandLine CmdL(Args,_config);
 109    if (pkgInitConfig(*_config) == false ||
 110        CmdL.Parse(argc,argv) == false ||
 111        pkgInitSystem(*_config,_system) == false)
 112    {
 113       _error->DumpErrors();
 114       return 100;
 115    }
 116
 117    // See if the help should be shown
 118    if (_config->FindB("help") == true ||
 119        CmdL.FileSize() == 0)
 120       return ShowHelp();
 121
 122    // Match the operation
 123    CmdL.DispatchArg(Cmds);
 124
 125    // Print any errors or warnings found during parsing
 126    if (_error->empty() == false)
 127    {
 128       bool Errors = _error->PendingError();
 129       _error->DumpErrors();
 130       return Errors == true?100:0;
 131    }
 132
 133    return 0;
 134 }