// -*- mode: cpp; mode: fold -*- // Description /*{{{*/ /* ##################################################################### cover around the internal solver to be able to run it like an external ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ #include <config.h> #include <apt-pkg/error.h> #include <apt-pkg/cmndline.h> #include <apt-pkg/init.h> #include <apt-pkg/cachefile.h> #include <apt-pkg/cacheset.h> #include <apt-pkg/strutl.h> #include <apt-pkg/edsp.h> #include <apt-pkg/fileutl.h> #include <apt-pkg/pkgsystem.h> #include <apt-pkg/configuration.h> #include <apt-pkg/packagemanager.h> #include <apt-pkg/prettyprinters.h> #include <apt-pkg/depcache.h> #include <apt-pkg/pkgcache.h> #include <apt-pkg/cacheiterators.h> #include <apt-private/private-output.h> #include <apt-private/private-cmndline.h> #include <apt-private/private-main.h> #include <string.h> #include <iostream> #include <sstream> #include <list> #include <string> #include <unistd.h> #include <cstdio> #include <stdlib.h> #include <apti18n.h> /*}}}*/ static bool ShowHelp(CommandLine &) /*{{{*/ { std::cout << _("Usage: apt-internal-planner\n" "\n" "apt-internal-planner is an interface to use the current internal\n" "installation planner for the APT family like an external one,\n" "for debugging or 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<aptDispatchWithHelp> GetCommands() /*{{{*/ { return {}; } /*}}}*/ class PMOutput: public pkgPackageManager /*{{{*/ { FileFd &output; bool const Debug; protected: virtual bool Install(PkgIterator Pkg,std::string) APT_OVERRIDE { //std::cerr << "INSTALL: " << APT::PrettyPkg(&Cache, Pkg) << std::endl; return EDSP::WriteSolutionStanza(output, "Unpack", Cache[Pkg].InstVerIter(Cache)); } virtual bool Configure(PkgIterator Pkg) APT_OVERRIDE { //std::cerr << "CONFIGURE: " << APT::PrettyPkg(&Cache, Pkg) << " " << std::endl; return EDSP::WriteSolutionStanza(output, "Configure", Cache[Pkg].InstVerIter(Cache)); } virtual bool Remove(PkgIterator Pkg,bool) APT_OVERRIDE { //std::cerr << "REMOVE: " << APT::PrettyPkg(&Cache, Pkg) << " " << std::endl; return EDSP::WriteSolutionStanza(output, "Remove", Pkg.CurrentVer()); } public: PMOutput(pkgDepCache *Cache, FileFd &file) : pkgPackageManager(Cache), output(file), Debug(_config->FindB("Debug::EDSP::WriteSolution", false)) {} bool ApplyRequest(std::list<std::pair<std::string,EIPP::PKG_ACTION>> const &actions) { for (auto && a: actions) { auto const Pkg = Cache.FindPkg(a.first); if (unlikely(Pkg.end() == true)) continue; switch (a.second) { case EIPP::PKG_ACTION::NOOP: break; case EIPP::PKG_ACTION::INSTALL: case EIPP::PKG_ACTION::REINSTALL: FileNames[Pkg->ID] = "EIPP"; break; case EIPP::PKG_ACTION::REMOVE: break; } } return true; } }; /*}}}*/ int main(int argc,const char *argv[]) /*{{{*/ { // we really don't need anything DropPrivileges(); CommandLine CmdL; ParseCommandLine(CmdL, APT_CMD::APT_INTERNAL_PLANNER, &_config, NULL, argc, argv, &ShowHelp, &GetCommands); // Deal with stdout not being a tty if (!isatty(STDOUT_FILENO) && _config->FindI("quiet", -1) == -1) _config->Set("quiet","1"); if (_config->FindI("quiet", 0) < 1) _config->Set("Debug::EIPP::WriteSolution", true); _config->Set("APT::System", "Debian APT planner interface"); _config->Set("APT::Planner", "internal"); _config->Set("eipp::scenario", "/nonexistent/stdin"); 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 planner…", output); if (pkgInitSystem(*_config,_system) == false) DIE("System could not be initialized!"); EDSP::WriteProgress(1, "Read request…", output); if (WaitFd(input, false, 5) == false) DIE("WAIT timed out in the planner"); std::list<std::pair<std::string,EIPP::PKG_ACTION>> actions; unsigned int flags; if (EIPP::ReadRequest(input, actions, flags) == false) DIE("Parsing the request failed!"); _config->Set("APT::Immediate-Configure", (flags & EIPP::Request::NO_IMMEDIATE_CONFIGURATION) == 0); _config->Set("APT::Immediate-Configure-All", (flags & EIPP::Request::IMMEDIATE_CONFIGURATION_ALL) != 0); _config->Set("APT::Force-LoopBreak", (flags & EIPP::Request::ALLOW_TEMPORARY_REMOVE_OF_ESSENTIALS) != 0); EDSP::WriteProgress(5, "Read scenario…", output); pkgCacheFile CacheFile; if (CacheFile.Open(NULL, false) == false) DIE("Failed to open CacheFile!"); EDSP::WriteProgress(50, "Apply request on scenario…", output); if (EIPP::ApplyRequest(actions, CacheFile) == false) DIE("Failed to apply request to depcache!"); EDSP::WriteProgress(60, "Call orderinstall on current scenario…", output); //_config->Set("Debug::pkgOrderList", true); //_config->Set("Debug::pkgPackageManager", true); PMOutput PM(CacheFile, output); if (PM.ApplyRequest(actions) == false) DIE("Failed to apply request to packagemanager!"); pkgPackageManager::OrderResult const Res = PM.DoInstallPreFork(); std::ostringstream broken; switch (Res) { case pkgPackageManager::Completed: EDSP::WriteProgress(100, "Done", output); break; case pkgPackageManager::Incomplete: broken << "Planner could only incompletely plan an installation order!" << std::endl; _error->DumpErrors(broken, GlobalError::DEBUG); EDSP::WriteError("pm-incomplete", broken.str(), output); break; case pkgPackageManager::Failed: broken << "Planner failed to find an installation order!" << std::endl; _error->DumpErrors(broken, GlobalError::DEBUG); EDSP::WriteError("pm-failed", broken.str(), output); break; } return DispatchCommandLine(CmdL, {}); } /*}}}*/