X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/3f506f684c6199a9a2bc68365732a9c00dc551c1..708e2f1fe99e6f067292bc909f03f12c181e4798:/cmdline/apt-internal-solver.cc diff --git a/cmdline/apt-internal-solver.cc b/cmdline/apt-internal-solver.cc index 53b38ea43..aecb0eaba 100644 --- a/cmdline/apt-internal-solver.cc +++ b/cmdline/apt-internal-solver.cc @@ -20,58 +20,72 @@ #include #include #include - +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include +#include #include #include +#include #include /*}}}*/ -// ShowHelp - Show a help screen /*{{{*/ -// --------------------------------------------------------------------- -/* */ -bool ShowHelp(CommandLine &CmdL) { - ioprintf(std::cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,PACKAGE_VERSION, - COMMON_ARCH,__DATE__,__TIME__); - +static bool ShowHelp(CommandLine &) /*{{{*/ +{ std::cout << _("Usage: apt-internal-solver\n" "\n" "apt-internal-solver is an interface to use the current internal\n" - "like an external resolver for the APT family for debugging or alike\n" - "\n" - "Options:\n" - " -h This help text.\n" - " -q Loggable output - no progress indicator\n" - " -c=? Read this configuration file\n" - " -o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp\n"); + "resolver for the APT family like an external one, for debugging or\n" + "the like.\n"); return true; } /*}}}*/ +APT_NORETURN static void DIE(std::string const &message) { /*{{{*/ + std::cerr << "ERROR: " << message << std::endl; + _error->DumpErrors(std::cerr); + exit(EXIT_FAILURE); +} + /*}}}*/ +static std::vector GetCommands() /*{{{*/ +{ + return {}; +} + /*}}}*/ +static bool WriteSolution(pkgDepCache &Cache, FileFd &output) /*{{{*/ +{ + bool Okay = output.Failed() == false; + for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false && likely(Okay); ++Pkg) + { + std::string action; + if (Cache[Pkg].Delete() == true) + Okay &= EDSP::WriteSolutionStanza(output, "Remove", Pkg.CurrentVer()); + else if (Cache[Pkg].NewInstall() == true || Cache[Pkg].Upgrade() == true) + Okay &= EDSP::WriteSolutionStanza(output, "Install", Cache.GetCandidateVersion(Pkg)); + else if (Cache[Pkg].Garbage == true) + Okay &= EDSP::WriteSolutionStanza(output, "Autoremove", Pkg.CurrentVer()); + } + return Okay; +} + /*}}}*/ int main(int argc,const char *argv[]) /*{{{*/ { - CommandLine::Args Args[] = { - {'h',"help","help",0}, - {'v',"version","version",0}, - {'q',"quiet","quiet",CommandLine::IntLevel}, - {'q',"silent","quiet",CommandLine::IntLevel}, - {'c',"config-file",0,CommandLine::ConfigFile}, - {'o',"option",0,CommandLine::ArbItem}, - {0,0,0,0}}; - - CommandLine CmdL(Args,_config); - if (pkgInitConfig(*_config) == false || - CmdL.Parse(argc,argv) == false) { - _error->DumpErrors(); - return 2; - } + // we really don't need anything + DropPrivileges(); - // See if the help should be shown - if (_config->FindB("help") == true || - _config->FindB("version") == true) { - ShowHelp(CmdL); - return 1; - } + CommandLine CmdL; + ParseCommandLine(CmdL, APT_CMD::APT_INTERNAL_SOLVER, &_config, NULL, argc, argv, &ShowHelp, &GetCommands); if (CmdL.FileList[0] != 0 && strcmp(CmdL.FileList[0], "scenario") == 0) { @@ -82,12 +96,19 @@ int main(int argc,const char *argv[]) /*{{{*/ pkgCacheFile CacheFile; CacheFile.Open(NULL, false); APT::PackageSet pkgset = APT::PackageSet::FromCommandLine(CacheFile, CmdL.FileList + 1); - FILE* output = stdout; + FileFd output; + if (output.OpenDescriptor(STDOUT_FILENO, FileFd::WriteOnly | FileFd::BufferedWrite, true) == false) + return 2; if (pkgset.empty() == true) EDSP::WriteScenario(CacheFile, output); else - EDSP::WriteLimitedScenario(CacheFile, output, pkgset); - fclose(output); + { + std::vector pkgvec(CacheFile->Head().PackageCount, false); + for (auto const &p: pkgset) + pkgvec[p->ID] = true; + EDSP::WriteLimitedScenario(CacheFile, output, pkgvec); + } + output.Close(); _error->DumpErrors(std::cerr); return 0; } @@ -99,42 +120,41 @@ int main(int argc,const char *argv[]) /*{{{*/ if (_config->FindI("quiet", 0) < 1) _config->Set("Debug::EDSP::WriteSolution", true); + _config->Set("APT::System", "Debian APT solver interface"); _config->Set("APT::Solver", "internal"); - _config->Set("edsp::scenario", "stdin"); - int input = STDIN_FILENO; - FILE* output = stdout; + _config->Set("edsp::scenario", "/nonexistent/stdin"); + _config->Clear("Dir::Log"); + FileFd output; + if (output.OpenDescriptor(STDOUT_FILENO, FileFd::WriteOnly | FileFd::BufferedWrite, true) == false) + DIE("stdout couldn't be opened"); + int const input = STDIN_FILENO; SetNonBlock(input, false); EDSP::WriteProgress(0, "Start up solver…", output); - if (pkgInitSystem(*_config,_system) == false) { - std::cerr << "System could not be initialized!" << std::endl; - return 1; - } + if (pkgInitSystem(*_config,_system) == false) + DIE("System could not be initialized!"); EDSP::WriteProgress(1, "Read request…", output); if (WaitFd(input, false, 5) == false) - std::cerr << "WAIT timed out in the resolver" << std::endl; + DIE("WAIT timed out in the resolver"); std::list install, remove; - bool upgrade, distUpgrade, autoRemove; - if (EDSP::ReadRequest(input, install, remove, upgrade, distUpgrade, autoRemove) == false) { - std::cerr << "Parsing the request failed!" << std::endl; - return 2; - } + unsigned int flags; + if (EDSP::ReadRequest(input, install, remove, flags) == false) + DIE("Parsing the request failed!"); EDSP::WriteProgress(5, "Read scenario…", output); pkgCacheFile CacheFile; - CacheFile.Open(NULL, false); + if (CacheFile.Open(NULL, false) == false) + DIE("Failed to open CacheFile!"); EDSP::WriteProgress(50, "Apply request on scenario…", output); - if (EDSP::ApplyRequest(install, remove, CacheFile) == false) { - std::cerr << "Failed to apply request to depcache!" << std::endl; - return 3; - } + if (EDSP::ApplyRequest(install, remove, CacheFile) == false) + DIE("Failed to apply request to depcache!"); pkgProblemResolver Fix(CacheFile); for (std::list::const_iterator i = remove.begin(); @@ -158,35 +178,37 @@ int main(int argc,const char *argv[]) /*{{{*/ EDSP::WriteProgress(60, "Call problemresolver on current scenario…", output); - if (upgrade == true) { - if (pkgAllUpgrade(CacheFile) == false) { - EDSP::WriteError("ERR_UNSOLVABLE_UPGRADE", "An upgrade error occured", output); - return 0; - } - } else if (distUpgrade == true) { - if (pkgDistUpgrade(CacheFile) == false) { - EDSP::WriteError("ERR_UNSOLVABLE_DIST_UPGRADE", "An dist-upgrade error occured", output); - return 0; - } - } else if (Fix.Resolve() == false) { - EDSP::WriteError("ERR_UNSOLVABLE", "An error occured", output); + std::string failure; + if (flags & EDSP::Request::UPGRADE_ALL) { + int upgrade_flags = APT::Upgrade::ALLOW_EVERYTHING; + if (flags & EDSP::Request::FORBID_NEW_INSTALL) + upgrade_flags |= APT::Upgrade::FORBID_INSTALL_NEW_PACKAGES; + if (flags & EDSP::Request::FORBID_REMOVE) + upgrade_flags |= APT::Upgrade::FORBID_REMOVE_PACKAGES; + + if (APT::Upgrade::Upgrade(CacheFile, upgrade_flags)) + ; + else if (upgrade_flags == APT::Upgrade::ALLOW_EVERYTHING) + failure = "ERR_UNSOLVABLE_FULL_UPGRADE"; + else + failure = "ERR_UNSOLVABLE_UPGRADE"; + } else if (Fix.Resolve() == false) + failure = "ERR_UNSOLVABLE"; + + if (failure.empty() == false) { + std::ostringstream broken; + ShowBroken(broken, CacheFile, false); + EDSP::WriteError(failure.c_str(), broken.str(), output); return 0; } EDSP::WriteProgress(95, "Write solution…", output); - if (EDSP::WriteSolution(CacheFile, output) == false) { - std::cerr << "Failed to output the solution!" << std::endl; - return 4; - } + if (WriteSolution(CacheFile, output) == false) + DIE("Failed to output the solution!"); EDSP::WriteProgress(100, "Done", output); - bool const Errors = _error->PendingError(); - if (_config->FindI("quiet",0) > 0) - _error->DumpErrors(std::cerr); - else - _error->DumpErrors(std::cerr, GlobalError::DEBUG); - return Errors == true ? 100 : 0; + return DispatchCommandLine(CmdL, {}); } /*}}}*/