cmdline/apt-helper.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 /* #####################################################################
   4    apt-helper - cmdline helpers
   5    ##################################################################### */
   6                                                                         /*}}}*/
   7 // Include Files                                                        /*{{{*/
   8 #include <config.h>
   9
  10 #include <apt-pkg/configuration.h>
  11 #include <apt-pkg/cmndline.h>
  12 #include <apt-pkg/error.h>
  13 #include <apt-pkg/init.h>
  14 #include <apt-pkg/strutl.h>
  15 #include <apt-pkg/pkgsystem.h>
  16 #include <apt-pkg/fileutl.h>
  17 #include <apt-pkg/acquire.h>
  18 #include <apt-pkg/acquire-item.h>
  19
  20 #include <apt-private/acqprogress.h>
  21 #include <apt-private/private-output.h>
  22 #include <apt-private/private-download.h>
  23 #include <apt-private/private-cmndline.h>
  24
  25 #include <iostream>
  26 #include <string>
  27 #include <vector>
  28
  29 #include <apti18n.h>
  30                                                                         /*}}}*/
  31
  32 static bool DoDownloadFile(CommandLine &CmdL)
  33 {
  34    if (CmdL.FileSize() <= 2)
  35       return _error->Error(_("Must specify at least one pair url/filename"));
  36
  37
  38    pkgAcquire Fetcher;
  39    AcqTextStatus Stat(ScreenWidth, _config->FindI("quiet",0));
  40    Fetcher.Setup(&Stat);
  41    std::string download_uri = CmdL.FileList[1];
  42    std::string targetfile = CmdL.FileList[2];
  43    new pkgAcqFile(&Fetcher, download_uri, "", 0, "desc", "short-desc",
  44                   "dest-dir-ignored", targetfile);
  45    Fetcher.Run();
  46    bool Failed = false;
  47    if (AcquireRun(Fetcher, 0, &Failed, NULL) == false || Failed == false ||
  48          FileExists(targetfile) == false)
  49       return _error->Error(_("Download Failed"));
  50    return true;
  51 }
  52
  53 static bool ShowHelp(CommandLine &)
  54 {
  55    ioprintf(std::cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,PACKAGE_VERSION,
  56             COMMON_ARCH,__DATE__,__TIME__);
  57
  58    if (_config->FindB("version") == true)
  59      return true;
  60
  61    std::cout <<
  62     _("Usage: apt-helper [options] command\n"
  63       "       apt-helper [options] download-file uri target-path\n"
  64       "\n"
  65       "apt-helper is a internal helper for apt\n"
  66       "\n"
  67       "Commands:\n"
  68       "   download-file - download the given uri to the target-path\n"
  69       "\n"
  70       "                       This APT helper has Super Meep Powers.\n");
  71    return true;
  72 }
  73
  74
  75 int main(int argc,const char *argv[])                                   /*{{{*/
  76 {
  77    CommandLine::Dispatch Cmds[] = {{"help",&ShowHelp},
  78                                    {"download-file", &DoDownloadFile},
  79                                    {0,0}};
  80
  81    std::vector<CommandLine::Args> Args = getCommandArgs(
  82       "apt-download", CommandLine::GetCommand(Cmds, argc, argv));
  83
  84    // Set up gettext support
  85    setlocale(LC_ALL,"");
  86    textdomain(PACKAGE);
  87
  88    // Parse the command line and initialize the package library
  89    CommandLine CmdL(Args.data(),_config);
  90    if (pkgInitConfig(*_config) == false ||
  91        CmdL.Parse(argc,argv) == false ||
  92        pkgInitSystem(*_config,_system) == false)
  93    {
  94       if (_config->FindB("version") == true)
  95          ShowHelp(CmdL);
  96       _error->DumpErrors();
  97       return 100;
  98    }
  99
 100    // See if the help should be shown
 101    if (_config->FindB("help") == true ||
 102        _config->FindB("version") == true ||
 103        CmdL.FileSize() == 0)
 104    {
 105       ShowHelp(CmdL);
 106       return 0;
 107    }
 108
 109    InitOutput();
 110
 111    // Match the operation
 112    CmdL.DispatchArg(Cmds);
 113
 114    // Print any errors or warnings found during parsing
 115    bool const Errors = _error->PendingError();
 116    if (_config->FindI("quiet",0) > 0)
 117       _error->DumpErrors();
 118    else
 119       _error->DumpErrors(GlobalError::DEBUG);
 120    return Errors == true ? 100 : 0;
 121 }
 122                                                                         /*}}}*/