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