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/cmndline.h>
  11 #include <apt-pkg/error.h>
  12 #include <apt-pkg/init.h>
  13 #include <apt-pkg/strutl.h>
  14 #include <apt-pkg/pkgsystem.h>
  15 #include <apt-pkg/fileutl.h>
  16 #include <apt-pkg/acquire.h>
  17 #include <apt-pkg/acquire-item.h>
  18
  19 #include <apt-private/acqprogress.h>
  20 #include <apt-private/private-output.h>
  21 #include <apt-private/private-cmndline.h>
  22
  23 #include <errno.h>
  24 #include <unistd.h>
  25 #include <sys/types.h>
  26 #include <sys/stat.h>
  27 #include <sys/wait.h>
  28 #include <fcntl.h>
  29
  30
  31
  32 #include <apti18n.h>
  33                                                                         /*}}}*/
  34 using namespace std;
  35
  36 bool DoDownloadFile(CommandLine &CmdL)
  37 {
  38    if (CmdL.FileSize() <= 2)
  39       return _error->Error(_("Must specify at least one pair url/filename"));
  40
  41
  42    pkgAcquire Fetcher;
  43    AcqTextStatus Stat(ScreenWidth, _config->FindI("quiet",0));
  44    Fetcher.Setup(&Stat);
  45    std::string download_uri = CmdL.FileList[1];
  46    std::string targetfile = CmdL.FileList[2];
  47    new pkgAcqFile(&Fetcher, download_uri, "", 0, "desc", "short-desc",
  48                   "dest-dir-ignored", targetfile);
  49    Fetcher.Run();
  50    if (!FileExists(targetfile))
  51    {
  52       _error->Error(_("Download Failed"));
  53       return false;
  54    }
  55    return true;
  56 }
  57
  58 bool ShowHelp(CommandLine &CmdL)
  59 {
  60    ioprintf(cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,PACKAGE_VERSION,
  61             COMMON_ARCH,__DATE__,__TIME__);
  62
  63    if (_config->FindB("version") == true)
  64      return true;
  65
  66    cout <<
  67     _("Usage: apt-helper [options] command\n"
  68       "       apt-helper [options] download-file uri target-path\n"
  69       "\n"
  70       "apt-helper is a internal helper for apt\n"
  71       "\n"
  72       "Commands:\n"
  73       "   download-file - download the given uri to the target-path\n"
  74       "\n"
  75       "                       This APT helper has Super Meep Powers.\n");
  76    return true;
  77 }
  78
  79
  80 int main(int argc,const char *argv[])                                   /*{{{*/
  81 {
  82    CommandLine::Dispatch Cmds[] = {{"help",&ShowHelp},
  83                                    {"download-file", &DoDownloadFile},
  84                                    {0,0}};
  85
  86    std::vector<CommandLine::Args> Args = getCommandArgs(
  87       "apt-download", CommandLine::GetCommand(Cmds, argc, argv));
  88
  89    // Set up gettext support
  90    setlocale(LC_ALL,"");
  91    textdomain(PACKAGE);
  92
  93    // Parse the command line and initialize the package library
  94    CommandLine CmdL(Args.data(),_config);
  95    if (pkgInitConfig(*_config) == false ||
  96        CmdL.Parse(argc,argv) == false ||
  97        pkgInitSystem(*_config,_system) == false)
  98    {
  99       if (_config->FindB("version") == true)
 100          ShowHelp(CmdL);
 101       _error->DumpErrors();
 102       return 100;
 103    }
 104
 105    // See if the help should be shown
 106    if (_config->FindB("help") == true ||
 107        _config->FindB("version") == true ||
 108        CmdL.FileSize() == 0)
 109    {
 110       ShowHelp(CmdL);
 111       return 0;
 112    }
 113
 114    InitOutput();
 115
 116    // Match the operation
 117    CmdL.DispatchArg(Cmds);
 118
 119    // Print any errors or warnings found during parsing
 120    bool const Errors = _error->PendingError();
 121    if (_config->FindI("quiet",0) > 0)
 122       _error->DumpErrors();
 123    else
 124       _error->DumpErrors(GlobalError::DEBUG);
 125    return Errors == true ? 100 : 0;
 126 }
 127                                                                         /*}}}*/