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    std::string hash;
  44    if (CmdL.FileSize() > 3)
  45       hash = CmdL.FileList[3];
  46    // we use download_uri as descr and targetfile as short-descr
  47    new pkgAcqFile(&Fetcher, download_uri, hash, 0, download_uri, targetfile,
  48                   "dest-dir-ignored", targetfile);
  49    Fetcher.Run();
  50    bool Failed = false;
  51    if (AcquireRun(Fetcher, 0, &Failed, NULL) == false || Failed == true ||
  52          FileExists(targetfile) == false)
  53       return _error->Error(_("Download Failed"));
  54    return true;
  55 }
  56
  57 static bool ShowHelp(CommandLine &)
  58 {
  59    ioprintf(std::cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,PACKAGE_VERSION,
  60             COMMON_ARCH,__DATE__,__TIME__);
  61
  62    if (_config->FindB("version") == true)
  63      return true;
  64
  65    std::cout <<
  66     _("Usage: apt-helper [options] command\n"
  67       "       apt-helper [options] download-file uri target-path\n"
  68       "\n"
  69       "apt-helper is a internal helper for apt\n"
  70       "\n"
  71       "Commands:\n"
  72       "   download-file - download the given uri to the target-path\n"
  73       "\n"
  74       "                       This APT helper has Super Meep Powers.\n");
  75    return true;
  76 }
  77
  78
  79 int main(int argc,const char *argv[])                                   /*{{{*/
  80 {
  81    CommandLine::Dispatch Cmds[] = {{"help",&ShowHelp},
  82                                    {"download-file", &DoDownloadFile},
  83                                    {0,0}};
  84
  85    std::vector<CommandLine::Args> Args = getCommandArgs(
  86       "apt-download", CommandLine::GetCommand(Cmds, argc, argv));
  87
  88    // Set up gettext support
  89    setlocale(LC_ALL,"");
  90    textdomain(PACKAGE);
  91
  92    // Parse the command line and initialize the package library
  93    CommandLine CmdL(Args.data(),_config);
  94    if (pkgInitConfig(*_config) == false ||
  95        CmdL.Parse(argc,argv) == false ||
  96        pkgInitSystem(*_config,_system) == false)
  97    {
  98       if (_config->FindB("version") == true)
  99          ShowHelp(CmdL);
 100       _error->DumpErrors();
 101       return 100;
 102    }
 103
 104    // See if the help should be shown
 105    if (_config->FindB("help") == true ||
 106        _config->FindB("version") == true ||
 107        CmdL.FileSize() == 0)
 108    {
 109       ShowHelp(CmdL);
 110       return 0;
 111    }
 112
 113    InitOutput();
 114
 115    // Match the operation
 116    CmdL.DispatchArg(Cmds);
 117
 118    // Print any errors or warnings found during parsing
 119    bool const Errors = _error->PendingError();
 120    if (_config->FindI("quiet",0) > 0)
 121       _error->DumpErrors();
 122    else
 123       _error->DumpErrors(GlobalError::DEBUG);
 124    return Errors == true ? 100 : 0;
 125 }
 126                                                                         /*}}}*/