apt-private/private-cmndline.cc

   1 // Include Files                                                        /*{{{*/
   2 #include <config.h>
   3
   4 #include <apt-pkg/cmndline.h>
   5 #include <apt-pkg/configuration.h>
   6 #include <apt-pkg/fileutl.h>
   7 #include <apt-pkg/pkgsystem.h>
   8 #include <apt-pkg/init.h>
   9 #include <apt-pkg/error.h>
  10 #include <apt-pkg/strutl.h>
  11
  12 #include <apt-private/private-cmndline.h>
  13 #include <apt-private/private-main.h>
  14
  15 #include <stdarg.h>
  16 #include <string.h>
  17 #include <stdlib.h>
  18
  19 #include <vector>
  20 #include <iomanip>
  21
  22 #include <apti18n.h>
  23                                                                         /*}}}*/
  24
  25 APT_SENTINEL static bool strcmp_match_in_list(char const * const Cmd, ...)              /*{{{*/
  26 {
  27    va_list args;
  28    bool found = false;
  29    va_start(args, Cmd);
  30    char const * Match = NULL;
  31    while ((Match = va_arg(args, char const *)) != NULL)
  32    {
  33       if (strcmp(Cmd, Match) != 0)
  34          continue;
  35       found = true;
  36       break;
  37    }
  38    va_end(args);
  39    return found;
  40 }
  41                                                                         /*}}}*/
  42 #define addArg(w,x,y,z) Args.push_back(CommandLine::MakeArgs(w,x,y,z))
  43 #define CmdMatches(...) strcmp_match_in_list(Cmd, __VA_ARGS__, NULL)
  44 static bool addArgumentsAPTCache(std::vector<CommandLine::Args> &Args, char const * const Cmd)/*{{{*/
  45 {
  46    if (CmdMatches("depends", "rdepends", "xvcg", "dotty"))
  47    {
  48       addArg('i', "important", "APT::Cache::Important", 0);
  49       addArg(0, "installed", "APT::Cache::Installed", 0);
  50       addArg(0, "pre-depends", "APT::Cache::ShowPre-Depends", 0);
  51       addArg(0, "depends", "APT::Cache::ShowDepends", 0);
  52       addArg(0, "recommends", "APT::Cache::ShowRecommends", 0);
  53       addArg(0, "suggests", "APT::Cache::ShowSuggests", 0);
  54       addArg(0, "replaces", "APT::Cache::ShowReplaces", 0);
  55       addArg(0, "breaks", "APT::Cache::ShowBreaks", 0);
  56       addArg(0, "conflicts", "APT::Cache::ShowConflicts", 0);
  57       addArg(0, "enhances", "APT::Cache::ShowEnhances", 0);
  58       addArg(0, "recurse", "APT::Cache::RecurseDepends", 0);
  59       addArg(0, "implicit", "APT::Cache::ShowImplicit", 0);
  60    }
  61    else if (CmdMatches("search"))
  62    {
  63       addArg('n', "names-only", "APT::Cache::NamesOnly", 0);
  64       addArg('f', "full", "APT::Cache::ShowFull", 0);
  65    }
  66    else if (CmdMatches("show"))
  67    {
  68       addArg('a', "all-versions", "APT::Cache::AllVersions", 0);
  69    }
  70    else if (CmdMatches("pkgnames"))
  71    {
  72       addArg(0, "all-names", "APT::Cache::AllNames", 0);
  73    }
  74    else if (CmdMatches("unmet"))
  75    {
  76       addArg('i', "important", "APT::Cache::Important", 0);
  77    }
  78    else if (CmdMatches("showsrc"))
  79    {
  80       addArg(0,"only-source","APT::Cache::Only-Source",0);
  81    }
  82    else if (CmdMatches("gencaches", "showpkg", "stats", "dump",
  83             "dumpavail", "showauto", "policy", "madison"))
  84       ;
  85    else
  86       return false;
  87
  88    bool const found_something = Args.empty() == false;
  89
  90    // FIXME: move to the correct command(s)
  91    addArg('g', "generate", "APT::Cache::Generate", 0);
  92    addArg('t', "target-release", "APT::Default-Release", CommandLine::HasArg);
  93    addArg('t', "default-release", "APT::Default-Release", CommandLine::HasArg);
  94
  95    addArg('p', "pkg-cache", "Dir::Cache::pkgcache", CommandLine::HasArg);
  96    addArg('s', "src-cache", "Dir::Cache::srcpkgcache", CommandLine::HasArg);
  97
  98    return found_something;
  99 }
 100                                                                         /*}}}*/
 101 static bool addArgumentsAPTCDROM(std::vector<CommandLine::Args> &Args, char const * const Cmd)/*{{{*/
 102 {
 103    if (CmdMatches("add", "ident") == false)
 104       return false;
 105
 106    // FIXME: move to the correct command(s)
 107    addArg(0, "auto-detect", "Acquire::cdrom::AutoDetect", CommandLine::Boolean);
 108    addArg('d', "cdrom", "Acquire::cdrom::mount", CommandLine::HasArg);
 109    addArg('r', "rename", "APT::CDROM::Rename", 0);
 110    addArg('m', "no-mount", "APT::CDROM::NoMount", 0);
 111    addArg('f', "fast", "APT::CDROM::Fast", 0);
 112    addArg('n', "just-print", "APT::CDROM::NoAct", 0);
 113    addArg('n', "recon", "APT::CDROM::NoAct", 0);
 114    addArg('n', "no-act", "APT::CDROM::NoAct", 0);
 115    addArg('a', "thorough", "APT::CDROM::Thorough", 0);
 116    return true;
 117 }
 118                                                                         /*}}}*/
 119 static bool addArgumentsAPTConfig(std::vector<CommandLine::Args> &Args, char const * const Cmd)/*{{{*/
 120 {
 121    if (CmdMatches("dump"))
 122    {
 123       addArg(0,"empty","APT::Config::Dump::EmptyValue",CommandLine::Boolean);
 124       addArg(0,"format","APT::Config::Dump::Format",CommandLine::HasArg);
 125    }
 126    else if (CmdMatches("shell"))
 127       ;
 128    else
 129       return false;
 130
 131    return true;
 132 }
 133                                                                         /*}}}*/
 134 static bool addArgumentsAPTExtractTemplates(std::vector<CommandLine::Args> &Args, char const * const)/*{{{*/
 135 {
 136    addArg('t',"tempdir","APT::ExtractTemplates::TempDir",CommandLine::HasArg);
 137    return true;
 138 }
 139                                                                         /*}}}*/
 140 static bool addArgumentsAPTFTPArchive(std::vector<CommandLine::Args> &Args, char const * const)/*{{{*/
 141 {
 142    addArg(0,"md5","APT::FTPArchive::MD5",0);
 143    addArg(0,"sha1","APT::FTPArchive::SHA1",0);
 144    addArg(0,"sha256","APT::FTPArchive::SHA256",0);
 145    addArg(0,"sha512","APT::FTPArchive::SHA512",0);
 146    addArg('d',"db","APT::FTPArchive::DB",CommandLine::HasArg);
 147    addArg('s',"source-override","APT::FTPArchive::SourceOverride",CommandLine::HasArg);
 148    addArg(0,"delink","APT::FTPArchive::DeLinkAct",0);
 149    addArg(0,"readonly","APT::FTPArchive::ReadOnlyDB",0);
 150    addArg(0,"contents","APT::FTPArchive::Contents",0);
 151    addArg('a',"arch","APT::FTPArchive::Architecture",CommandLine::HasArg);
 152    return true;
 153 }
 154                                                                         /*}}}*/
 155 static bool addArgumentsAPTInternalSolver(std::vector<CommandLine::Args> &, char const * const)/*{{{*/
 156 {
 157    return true;
 158 }
 159                                                                         /*}}}*/
 160 static bool addArgumentsAPTHelper(std::vector<CommandLine::Args> &Args, char const * const Cmd)/*{{{*/
 161 {
 162    if (CmdMatches("cat-file"))
 163    {
 164       addArg('C', "compress", "Apt-Helper::Cat-File::Compress",CommandLine::HasArg);
 165    }
 166    return true;
 167 }
 168                                                                         /*}}}*/
 169 static bool addArgumentsAPTGet(std::vector<CommandLine::Args> &Args, char const * const Cmd)/*{{{*/
 170 {
 171    if (CmdMatches("install", "remove", "purge", "upgrade", "dist-upgrade",
 172             "dselect-upgrade", "autoremove", "full-upgrade"))
 173    {
 174       addArg(0, "show-progress", "DpkgPM::Progress", 0);
 175       addArg('f', "fix-broken", "APT::Get::Fix-Broken", 0);
 176       addArg(0, "purge", "APT::Get::Purge", 0);
 177       addArg('V',"verbose-versions","APT::Get::Show-Versions",0);
 178       addArg(0, "auto-remove", "APT::Get::AutomaticRemove", 0);
 179       addArg(0, "reinstall", "APT::Get::ReInstall", 0);
 180       addArg(0, "solver", "APT::Solver", CommandLine::HasArg);
 181       if (CmdMatches("upgrade"))
 182       {
 183          addArg(0, "new-pkgs", "APT::Get::Upgrade-Allow-New",
 184                 CommandLine::Boolean);
 185       }
 186    }
 187    else if (CmdMatches("update"))
 188    {
 189       addArg(0, "list-cleanup", "APT::Get::List-Cleanup", 0);
 190    }
 191    else if (CmdMatches("source"))
 192    {
 193       addArg('b', "compile", "APT::Get::Compile", 0);
 194       addArg('b', "build", "APT::Get::Compile", 0);
 195       addArg('P', "build-profiles", "APT::Build-Profiles", CommandLine::HasArg);
 196       addArg(0, "diff-only", "APT::Get::Diff-Only", 0);
 197       addArg(0, "debian-only", "APT::Get::Diff-Only", 0);
 198       addArg(0, "tar-only", "APT::Get::Tar-Only", 0);
 199       addArg(0, "dsc-only", "APT::Get::Dsc-Only", 0);
 200    }
 201    else if (CmdMatches("build-dep"))
 202    {
 203       addArg('a', "host-architecture", "APT::Get::Host-Architecture", CommandLine::HasArg);
 204       addArg('P', "build-profiles", "APT::Build-Profiles", CommandLine::HasArg);
 205       addArg(0, "purge", "APT::Get::Purge", 0);
 206       addArg(0, "solver", "APT::Solver", CommandLine::HasArg);
 207       // this has no effect *but* sbuild is using it (see LP: #1255806)
 208       // once sbuild is fixed, this option can be removed
 209       addArg('f', "fix-broken", "APT::Get::Fix-Broken", 0);
 210    }
 211    else if (CmdMatches("indextargets"))
 212    {
 213       addArg(0,"format","APT::Get::IndexTargets::Format", CommandLine::HasArg);
 214       addArg(0,"release-info","APT::Get::IndexTargets::ReleaseInfo", 0);
 215    }
 216    else if (CmdMatches("clean", "autoclean", "auto-clean", "check", "download", "changelog") ||
 217             CmdMatches("markauto", "unmarkauto")) // deprecated commands
 218       ;
 219    else if (CmdMatches("moo"))
 220       addArg(0, "color", "APT::Moo::Color", 0);
 221
 222    if (CmdMatches("install", "remove", "purge", "upgrade", "dist-upgrade",
 223             "dselect-upgrade", "autoremove", "auto-remove", "clean", "autoclean", "auto-clean", "check",
 224             "build-dep", "full-upgrade", "source"))
 225    {
 226       addArg('s', "simulate", "APT::Get::Simulate", 0);
 227       addArg('s', "just-print", "APT::Get::Simulate", 0);
 228       addArg('s', "recon", "APT::Get::Simulate", 0);
 229       addArg('s', "dry-run", "APT::Get::Simulate", 0);
 230       addArg('s', "no-act", "APT::Get::Simulate", 0);
 231    }
 232
 233    bool const found_something = Args.empty() == false;
 234
 235    // FIXME: move to the correct command(s)
 236    addArg('d',"download-only","APT::Get::Download-Only",0);
 237    addArg('y',"yes","APT::Get::Assume-Yes",0);
 238    addArg('y',"assume-yes","APT::Get::Assume-Yes",0);
 239    addArg(0,"assume-no","APT::Get::Assume-No",0);
 240    addArg('u',"show-upgraded","APT::Get::Show-Upgraded",0);
 241    addArg('m',"ignore-missing","APT::Get::Fix-Missing",0);
 242    addArg('t',"target-release","APT::Default-Release",CommandLine::HasArg);
 243    addArg('t',"default-release","APT::Default-Release",CommandLine::HasArg);
 244    addArg(0,"download","APT::Get::Download",0);
 245    addArg(0,"fix-missing","APT::Get::Fix-Missing",0);
 246    addArg(0,"ignore-hold","APT::Ignore-Hold",0);
 247    addArg(0,"upgrade","APT::Get::upgrade",0);
 248    addArg(0,"only-upgrade","APT::Get::Only-Upgrade",0);
 249    addArg(0,"allow-change-held-packages","APT::Get::allow-change-held-packages",CommandLine::Boolean);
 250    addArg(0,"allow-remove-essential","APT::Get::allow-remove-essential",CommandLine::Boolean);
 251    addArg(0,"allow-downgrades","APT::Get::allow-downgrades",CommandLine::Boolean);
 252    addArg(0,"force-yes","APT::Get::force-yes",0);
 253    addArg(0,"print-uris","APT::Get::Print-URIs",0);
 254    addArg(0,"trivial-only","APT::Get::Trivial-Only",0);
 255    addArg(0,"remove","APT::Get::Remove",0);
 256    addArg(0,"only-source","APT::Get::Only-Source",0);
 257    addArg(0,"arch-only","APT::Get::Arch-Only",0);
 258    addArg(0,"allow-unauthenticated","APT::Get::AllowUnauthenticated",0);
 259    addArg(0,"allow-insecure-repositories","Acquire::AllowInsecureRepositories",0);
 260    addArg(0,"install-recommends","APT::Install-Recommends",CommandLine::Boolean);
 261    addArg(0,"install-suggests","APT::Install-Suggests",CommandLine::Boolean);
 262    addArg(0,"fix-policy","APT::Get::Fix-Policy-Broken",0);
 263
 264    return found_something;
 265 }
 266                                                                         /*}}}*/
 267 static bool addArgumentsAPTMark(std::vector<CommandLine::Args> &Args, char const * const Cmd)/*{{{*/
 268 {
 269    if (CmdMatches("auto", "manual", "hold", "unhold", "showauto",
 270             "showmanual", "showhold", "showholds",
 271             "markauto", "unmarkauto"))
 272    {
 273       addArg('f',"file","Dir::State::extended_states",CommandLine::HasArg);
 274    }
 275    else if (CmdMatches("install", "remove", "deinstall", "purge",
 276             "showinstall", "showinstalls", "showremove", "showremoves",
 277             "showdeinstall", "showdeinstalls", "showpurge", "showpurges"))
 278       ;
 279    else
 280       return false;
 281
 282    if (CmdMatches("markauto", "unmarkauto"))
 283    {
 284       addArg('v',"verbose","APT::MarkAuto::Verbose",0);
 285    }
 286
 287    if (strncmp(Cmd, "show", strlen("show")) != 0)
 288    {
 289       addArg('s',"simulate","APT::Mark::Simulate",0);
 290       addArg('s',"just-print","APT::Mark::Simulate",0);
 291       addArg('s',"recon","APT::Mark::Simulate",0);
 292       addArg('s',"dry-run","APT::Mark::Simulate",0);
 293       addArg('s',"no-act","APT::Mark::Simulate",0);
 294    }
 295
 296    return true;
 297 }
 298                                                                         /*}}}*/
 299 static bool addArgumentsAPTSortPkgs(std::vector<CommandLine::Args> &Args, char const * const)/*{{{*/
 300 {
 301    addArg('s',"source","APT::SortPkgs::Source",0);
 302    return true;
 303 }
 304                                                                         /*}}}*/
 305 static bool addArgumentsAPT(std::vector<CommandLine::Args> &Args, char const * const Cmd)/*{{{*/
 306 {
 307    if (CmdMatches("list"))
 308    {
 309       addArg('i',"installed","APT::Cmd::Installed",0);
 310       addArg(0,"upgradeable","APT::Cmd::Upgradable",0);
 311       addArg('u',"upgradable","APT::Cmd::Upgradable",0);
 312       addArg(0,"manual-installed","APT::Cmd::Manual-Installed",0);
 313       addArg('v', "verbose", "APT::Cmd::List-Include-Summary", 0);
 314       addArg('a', "all-versions", "APT::Cmd::All-Versions", 0);
 315    }
 316    else if (CmdMatches("show"))
 317    {
 318       addArg('a', "all-versions", "APT::Cache::AllVersions", 0);
 319    }
 320    else if (addArgumentsAPTGet(Args, Cmd) || addArgumentsAPTCache(Args, Cmd))
 321    {
 322        // we have no (supported) command-name overlaps so far, so we call
 323        // specifics in order until we find one which adds arguments
 324    }
 325    else
 326       return false;
 327
 328    return true;
 329 }
 330                                                                         /*}}}*/
 331 std::vector<CommandLine::Args> getCommandArgs(APT_CMD const Program, char const * const Cmd)/*{{{*/
 332 {
 333    std::vector<CommandLine::Args> Args;
 334    Args.reserve(50);
 335    if (Cmd == nullptr)
 336    {
 337       if (Program == APT_CMD::APT_EXTRACTTEMPLATES)
 338          addArgumentsAPTExtractTemplates(Args, Cmd);
 339    }
 340    else if (strcmp(Cmd, "help") == 0)
 341       ; // no options for help so no need to implement it in each
 342    else
 343       switch (Program)
 344       {
 345          case APT_CMD::APT: addArgumentsAPT(Args, Cmd); break;
 346          case APT_CMD::APT_GET: addArgumentsAPTGet(Args, Cmd); break;
 347          case APT_CMD::APT_CACHE: addArgumentsAPTCache(Args, Cmd); break;
 348          case APT_CMD::APT_CDROM: addArgumentsAPTCDROM(Args, Cmd); break;
 349          case APT_CMD::APT_CONFIG: addArgumentsAPTConfig(Args, Cmd); break;
 350          case APT_CMD::APT_EXTRACTTEMPLATES: addArgumentsAPTExtractTemplates(Args, Cmd); break;
 351          case APT_CMD::APT_FTPARCHIVE: addArgumentsAPTFTPArchive(Args, Cmd); break;
 352          case APT_CMD::APT_HELPER: addArgumentsAPTHelper(Args, Cmd); break;
 353          case APT_CMD::APT_INTERNAL_SOLVER: addArgumentsAPTInternalSolver(Args, Cmd); break;
 354          case APT_CMD::APT_MARK: addArgumentsAPTMark(Args, Cmd); break;
 355          case APT_CMD::APT_SORTPKG: addArgumentsAPTSortPkgs(Args, Cmd); break;
 356       }
 357
 358    // options without a command
 359    addArg('h', "help", "help", 0);
 360    addArg('v', "version", "version", 0);
 361    // general options
 362    addArg('q', "quiet", "quiet", CommandLine::IntLevel);
 363    addArg('q', "silent", "quiet", CommandLine::IntLevel);
 364    addArg('c', "config-file", 0, CommandLine::ConfigFile);
 365    addArg('o', "option", 0, CommandLine::ArbItem);
 366    addArg(0, NULL, NULL, 0);
 367
 368    return Args;
 369 }
 370                                                                         /*}}}*/
 371 #undef CmdMatches
 372 #undef addArg
 373 static void ShowHelpListCommands(std::vector<aptDispatchWithHelp> const &Cmds)/*{{{*/
 374 {
 375    if (Cmds.empty() || Cmds[0].Match == nullptr)
 376       return;
 377    std::cout << std::endl << _("Most used commands:") << std::endl;
 378    for (auto const &c: Cmds)
 379    {
 380       if (c.Help == nullptr)
 381          continue;
 382       std::cout << "  " << c.Match << " - " << c.Help << std::endl;
 383    }
 384 }
 385                                                                         /*}}}*/
 386 static bool ShowCommonHelp(APT_CMD const Binary, CommandLine &CmdL, std::vector<aptDispatchWithHelp> const &Cmds,/*{{{*/
 387       bool (*ShowHelp)(CommandLine &))
 388 {
 389    std::cout << PACKAGE << " " << PACKAGE_VERSION << " (" << COMMON_ARCH << ")" << std::endl;
 390    if (_config->FindB("version") == true && Binary != APT_CMD::APT_GET)
 391       return true;
 392    if (ShowHelp(CmdL) == false)
 393       return false;
 394    if (_config->FindB("version") == true || Binary == APT_CMD::APT_FTPARCHIVE)
 395       return true;
 396    ShowHelpListCommands(Cmds);
 397    std::cout << std::endl;
 398    char const * cmd = nullptr;
 399    switch (Binary)
 400    {
 401       case APT_CMD::APT: cmd = "apt(8)"; break;
 402       case APT_CMD::APT_CACHE: cmd = "apt-cache(8)"; break;
 403       case APT_CMD::APT_CDROM: cmd = "apt-cdrom(8)"; break;
 404       case APT_CMD::APT_CONFIG: cmd = "apt-config(8)"; break;
 405       case APT_CMD::APT_EXTRACTTEMPLATES: cmd = "apt-extracttemplates(1)"; break;
 406       case APT_CMD::APT_FTPARCHIVE: cmd = "apt-ftparchive(1)"; break;
 407       case APT_CMD::APT_GET: cmd = "apt-get(8)"; break;
 408       case APT_CMD::APT_HELPER: cmd = nullptr; break;
 409       case APT_CMD::APT_INTERNAL_SOLVER: cmd = nullptr; break;
 410       case APT_CMD::APT_MARK: cmd = "apt-mark(8)"; break;
 411       case APT_CMD::APT_SORTPKG: cmd = "apt-sortpkgs(1)"; break;
 412    }
 413    if (cmd != nullptr)
 414       ioprintf(std::cout, _("See %s for more information about the available commands."), cmd);
 415    std::cout << std::endl <<
 416       _("Configuration options and syntax is detailed in apt.conf(5).\n"
 417             "Information about how to configure sources can be found in sources.list(5).\n"
 418             "Package and version choices can be expressed via apt_preferences(5).\n"
 419             "Security details are available in apt-secure(8).\n");
 420    if (Binary == APT_CMD::APT_GET || Binary == APT_CMD::APT)
 421       std::cout << std::right << std::setw(70) << _("This APT has Super Cow Powers.") << std::endl;
 422    else if (Binary == APT_CMD::APT_HELPER)
 423       std::cout << std::right << std::setw(70) << _("This APT helper has Super Meep Powers.") << std::endl;
 424    return true;
 425 }
 426                                                                         /*}}}*/
 427 static void BinarySpecificConfiguration(char const * const Binary)      /*{{{*/
 428 {
 429    std::string const binary = flNotDir(Binary);
 430    if (binary == "apt" || binary == "apt-config")
 431    {
 432       _config->CndSet("Binary::apt::APT::Color", true);
 433       _config->CndSet("Binary::apt::APT::Cache::Show::Version", 2);
 434       _config->CndSet("Binary::apt::APT::Cache::AllVersions", false);
 435       _config->CndSet("Binary::apt::APT::Cache::ShowVirtuals", true);
 436       _config->CndSet("Binary::apt::APT::Cache::Search::Version", 2);
 437       _config->CndSet("Binary::apt::APT::Cache::ShowDependencyType", true);
 438       _config->CndSet("Binary::apt::APT::Cache::ShowVersion", true);
 439       _config->CndSet("Binary::apt::APT::Get::Upgrade-Allow-New", true);
 440       _config->CndSet("Binary::apt::APT::Cmd::Show-Update-Stats", true);
 441       _config->CndSet("Binary::apt::DPkg::Progress-Fancy", true);
 442       _config->CndSet("Binary::apt::Acquire::AllowInsecureRepositories", false);
 443       _config->CndSet("Binary::apt::APT::Keep-Downloaded-Packages", false);
 444    }
 445
 446    _config->Set("Binary", binary);
 447    std::string const conf = "Binary::" + binary;
 448    _config->MoveSubTree(conf.c_str(), NULL);
 449 }
 450                                                                         /*}}}*/
 451 std::vector<CommandLine::Dispatch> ParseCommandLine(CommandLine &CmdL, APT_CMD const Binary,/*{{{*/
 452       Configuration * const * const Cnf, pkgSystem ** const Sys, int const argc, const char *argv[],
 453       bool (*ShowHelp)(CommandLine &), std::vector<aptDispatchWithHelp> (*GetCommands)(void))
 454 {
 455    InitLocale(Binary);
 456    if (Cnf != NULL && pkgInitConfig(**Cnf) == false)
 457    {
 458       _error->DumpErrors();
 459       exit(100);
 460    }
 461
 462    if (likely(argc != 0 && argv[0] != NULL))
 463       BinarySpecificConfiguration(argv[0]);
 464
 465    std::vector<aptDispatchWithHelp> const CmdsWithHelp = GetCommands();
 466    std::vector<CommandLine::Dispatch> Cmds;
 467    if (CmdsWithHelp.empty() == false)
 468    {
 469       CommandLine::Dispatch const help = { "help", [](CommandLine &){return false;} };
 470       Cmds.push_back(std::move(help));
 471    }
 472    for (auto const& cmd : CmdsWithHelp)
 473       Cmds.push_back({cmd.Match, cmd.Handler});
 474
 475    // Args running out of scope invalidates the pointer stored in CmdL,
 476    // but we don't use the pointer after this function, so we ignore
 477    // this problem for now and figure something out if we have to.
 478    std::vector<CommandLine::Args> Args;
 479    if (Cmds.empty() == false && Cmds[0].Handler != nullptr)
 480       Args = getCommandArgs(Binary, CommandLine::GetCommand(Cmds.data(), argc, argv));
 481    else
 482       Args = getCommandArgs(Binary, nullptr);
 483    CmdL = CommandLine(Args.data(), _config);
 484
 485    if (CmdL.Parse(argc,argv) == false ||
 486        (Sys != NULL && pkgInitSystem(*_config, *Sys) == false))
 487    {
 488       if (_config->FindB("version") == true)
 489          ShowCommonHelp(Binary, CmdL, CmdsWithHelp, ShowHelp);
 490
 491       _error->DumpErrors();
 492       exit(100);
 493    }
 494
 495    // See if the help should be shown
 496    if (_config->FindB("help") == true || _config->FindB("version") == true ||
 497          (CmdL.FileSize() > 0 && strcmp(CmdL.FileList[0], "help") == 0))
 498    {
 499       ShowCommonHelp(Binary, CmdL, CmdsWithHelp, ShowHelp);
 500       exit(0);
 501    }
 502    if (Cmds.empty() == false && CmdL.FileSize() == 0)
 503    {
 504       ShowCommonHelp(Binary, CmdL, CmdsWithHelp, ShowHelp);
 505       exit(1);
 506    }
 507    return Cmds;
 508 }
 509                                                                         /*}}}*/
 510 unsigned short DispatchCommandLine(CommandLine &CmdL, std::vector<CommandLine::Dispatch> const &Cmds)   /*{{{*/
 511 {
 512    // Match the operation
 513    bool const returned = Cmds.empty() ? true : CmdL.DispatchArg(Cmds.data());
 514
 515    // Print any errors or warnings found during parsing
 516    bool const Errors = _error->PendingError();
 517    if (_config->FindI("quiet",0) > 0)
 518       _error->DumpErrors();
 519    else
 520       _error->DumpErrors(GlobalError::DEBUG);
 521    if (returned == false)
 522       return 100;
 523    return Errors == true ? 100 : 0;
 524 }
 525                                                                         /*}}}*/