cmdline/apt-config.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: apt-config.cc,v 1.7 2001/02/20 07:03:17 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 <iostream>
  28 #include <string>
  29                                                                         /*}}}*/
  30
  31 // DoShell - Handle the shell command                                   /*{{{*/
  32 // ---------------------------------------------------------------------
  33 /* */
  34 bool DoShell(CommandLine &CmdL)
  35 {
  36    for (const char **I = CmdL.FileList + 1; *I != 0; I += 2)
  37    {
  38       if (I[1] == 0 || strlen(I[1]) == 0)
  39          return _error->Error(_("Arguments not in pairs"));
  40
  41       string key = I[1];
  42       if (key.end()[-1] == '/') // old directory format
  43          key.append("d");
  44
  45       if (_config->ExistsAny(key.c_str()))
  46          cout << *I << "='" <<
  47                  SubstVar(_config->FindAny(key.c_str()),"'","'\\''") << '\'' << endl;
  48
  49    }
  50
  51    return true;
  52 }
  53                                                                         /*}}}*/
  54 // DoDump - Dump the configuration space                                /*{{{*/
  55 // ---------------------------------------------------------------------
  56 /* */
  57 bool DoDump(CommandLine &CmdL)
  58 {
  59    _config->Dump();
  60    return true;
  61 }
  62                                                                         /*}}}*/
  63 // ShowHelp - Show the help screen                                      /*{{{*/
  64 // ---------------------------------------------------------------------
  65 /* */
  66 int ShowHelp()
  67 {
  68    ioprintf(cout,_("%s %s for %s %s compiled on %s %s\n"),PACKAGE,VERSION,
  69             COMMON_OS,COMMON_CPU,__DATE__,__TIME__);
  70    if (_config->FindB("version") == true)
  71       return 0;
  72
  73    cout <<
  74     _("Usage: apt-config [options] command\n"
  75       "\n"
  76       "apt-config is a simple tool to read the APT config file\n"
  77       "\n"
  78       "Commands:\n"
  79       "   shell - Shell mode\n"
  80       "   dump - Show the configuration\n"
  81       "\n"
  82       "Options:\n"
  83       "  -h   This help text.\n"
  84       "  -c=? Read this configuration file\n"
  85       "  -o=? Set an arbitary configuration option, eg -o dir::cache=/tmp\n");
  86    return 0;
  87 }
  88                                                                         /*}}}*/
  89
  90 int main(int argc,const char *argv[])
  91 {
  92    CommandLine::Args Args[] = {
  93       {'h',"help","help",0},
  94       {'v',"version","version",0},
  95       {'c',"config-file",0,CommandLine::ConfigFile},
  96       {'o',"option",0,CommandLine::ArbItem},
  97       {0,0,0,0}};
  98    CommandLine::Dispatch Cmds[] = {{"shell",&DoShell},
  99                                    {"dump",&DoDump},
 100                                    {0,0}};
 101
 102    // Parse the command line and initialize the package library
 103    CommandLine CmdL(Args,_config);
 104    if (pkgInitConfig(*_config) == false ||
 105        CmdL.Parse(argc,argv) == false ||
 106        pkgInitSystem(*_config,_system) == false)
 107    {
 108       _error->DumpErrors();
 109       return 100;
 110    }
 111
 112    // See if the help should be shown
 113    if (_config->FindB("help") == true ||
 114        CmdL.FileSize() == 0)
 115       return ShowHelp();
 116
 117    // Match the operation
 118    CmdL.DispatchArg(Cmds);
 119
 120    // Print any errors or warnings found during parsing
 121    if (_error->empty() == false)
 122    {
 123       bool Errors = _error->PendingError();
 124       _error->DumpErrors();
 125       return Errors == true?100:0;
 126    }
 127
 128    return 0;
 129 }