cmdline/apt-config.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: apt-config.cc,v 1.4 1999/03/29 19:28:52 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 "config.h"
  23
  24 #include <iostream>
  25                                                                         /*}}}*/
  26
  27 // DoShell - Handle the shell command                                   /*{{{*/
  28 // ---------------------------------------------------------------------
  29 /* */
  30 bool DoShell(CommandLine &CmdL)
  31 {
  32    for (const char **I = CmdL.FileList + 1; *I != 0; I += 2)
  33    {
  34       if (I[1] == 0)
  35          return _error->Error("Arguments not in pairs");
  36       if (_config->Exists(I[1]) == true)
  37          cout << *I << "=\"" << _config->Find(I[1]) << '"' << endl;
  38    }
  39
  40    return true;
  41 }
  42                                                                         /*}}}*/
  43 // ShowHelp - Show the help screen                                      /*{{{*/
  44 // ---------------------------------------------------------------------
  45 /* */
  46 int ShowHelp()
  47 {
  48    cout << PACKAGE << ' ' << VERSION << " for " << ARCHITECTURE <<
  49        " compiled on " << __DATE__ << "  " << __TIME__ << endl;
  50    if (_config->FindB("version") == true)
  51       return 100;
  52
  53    cout << "Usage: apt-config [options] command" << endl;
  54    cout << endl;
  55    cout << "apt-config is a simple tool to read the APT config file" << endl;
  56    cout << endl;
  57    cout << "Commands:" << endl;
  58    cout << "   shell - Shell mode" << endl;
  59    cout << endl;
  60    cout << "Options:" << endl;
  61    cout << "  -h   This help text." << endl;
  62    cout << "  -c=? Read this configuration file" << endl;
  63    cout << "  -o=? Set an arbitary configuration option, eg -o dir::cache=/tmp" << endl;
  64    return 100;
  65 }
  66                                                                         /*}}}*/
  67
  68 int main(int argc,const char *argv[])
  69 {
  70    CommandLine::Args Args[] = {
  71       {'h',"help","help",0},
  72       {'v',"version","version",0},
  73       {'c',"config-file",0,CommandLine::ConfigFile},
  74       {'o',"option",0,CommandLine::ArbItem},
  75       {0,0,0,0}};
  76    CommandLine::Dispatch Cmds[] = {{"shell",&DoShell},
  77                                    {0,0}};
  78
  79    // Parse the command line and initialize the package library
  80    CommandLine CmdL(Args,_config);
  81    if (pkgInitialize(*_config) == false ||
  82        CmdL.Parse(argc,argv) == false)
  83    {
  84       _error->DumpErrors();
  85       return 100;
  86    }
  87
  88    // See if the help should be shown
  89    if (_config->FindB("help") == true ||
  90        CmdL.FileSize() == 0)
  91       return ShowHelp();
  92
  93    // Match the operation
  94    CmdL.DispatchArg(Cmds);
  95
  96    // Print any errors or warnings found during parsing
  97    if (_error->empty() == false)
  98    {
  99       bool Errors = _error->PendingError();
 100       _error->DumpErrors();
 101       return Errors == true?100:0;
 102    }
 103
 104    return 0;
 105 }