return ResolveExternal(solver, Cache, flags, Progress);
}
/*}}}*/
+
+bool EIPP::OrderInstall(char const * const solver, pkgDepCache &Cache, /*{{{*/
+ unsigned int const flags, OpProgress * const Progress)
+{
+ int solver_in, solver_out;
+ pid_t const solver_pid = ExecuteExternal("planer", solver, "Dir::Bin::Planers", &solver_in, &solver_out);
+ if (solver_pid == 0)
+ return false;
+
+ FileFd output;
+ if (output.OpenDescriptor(solver_in, FileFd::WriteOnly | FileFd::BufferedWrite, true) == false)
+ return _error->Errno("OrderInstall", "Opening planer %s stdin on fd %d for writing failed", solver, solver_in);
+
+ bool Okay = output.Failed() == false;
+ if (Progress != NULL)
+ Progress->OverallProgress(0, 100, 5, _("Execute external planer"));
+ Okay &= EIPP::WriteRequest(Cache, output, flags, Progress);
+ if (Progress != NULL)
+ Progress->OverallProgress(5, 100, 20, _("Execute external planer"));
+ Okay &= EIPP::WriteScenario(Cache, output, Progress);
+ output.Close();
+
+ if (Progress != NULL)
+ Progress->OverallProgress(25, 100, 75, _("Execute external planer"));
+ if (Okay && EIPP::ReadResponse(solver_out, Cache, Progress) == false)
+ return false;
+
+ return ExecWait(solver_pid, solver);
+}
+ /*}}}*/
+bool EIPP::WriteRequest(pkgDepCache &Cache, FileFd &output, /*{{{*/
+ unsigned int const flags,
+ OpProgress * const Progress)
+{
+ (void)(flags);
+ if (Progress != NULL)
+ Progress->SubProgress(Cache.Head().PackageCount, _("Send request to planer"));
+ unsigned long p = 0;
+ string del, purge, inst, reinst;
+ for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; ++Pkg, ++p)
+ {
+ if (Progress != NULL && p % 100 == 0)
+ Progress->Progress(p);
+ string* req;
+ pkgDepCache::StateCache &P = Cache[Pkg];
+ if (P.Purge() == true)
+ req = &purge;
+ if (P.Delete() == true)
+ req = &del;
+ else if (P.NewInstall() == true || P.Upgrade() == true)
+ req = &inst;
+ else if (P.ReInstall() == true)
+ req = &reinst;
+ else
+ continue;
+ req->append(" ").append(Pkg.FullName());
+ }
+ bool Okay = WriteOkay(output, "Request: EIPP 0.1\n");
+
+ const char *arch = _config->Find("APT::Architecture").c_str();
+ std::vector<string> archs = APT::Configuration::getArchitectures();
+ WriteOkay(Okay, output, "Architecture: ", arch, "\n",
+ "Architectures:");
+ for (std::vector<string>::const_iterator a = archs.begin(); a != archs.end(); ++a)
+ WriteOkay(Okay, output, " ", *a);
+ WriteOkay(Okay, output, "\n");
+
+ if (purge.empty() == false)
+ WriteOkay(Okay, output, "Purge:", purge, "\n");
+ if (del.empty() == false)
+ WriteOkay(Okay, output, "Remove:", del, "\n");
+ if (inst.empty() == false)
+ WriteOkay(Okay, output, "Install:", inst, "\n");
+ if (reinst.empty() == false)
+ WriteOkay(Okay, output, "ReInstall:", reinst, "\n");
+ WriteOkay(Okay, output, "Planer: ", _config->Find("APT::Planer", "internal"), "\n");
+ return WriteOkay(Okay, output, "\n");
+}
+ /*}}}*/
+static bool WriteScenarioEIPPVersion(pkgDepCache &Cache, FileFd &output, pkgCache::PkgIterator const &Pkg,/*{{{*/
+ pkgCache::VerIterator const &Ver)
+{
+ bool Okay = true;
+ if (Pkg.CurrentVer() == Ver)
+ switch (Pkg->CurrentState)
+ {
+ case pkgCache::State::NotInstalled: WriteOkay(Okay, output, "\nStatus: not-installed"); break;
+ case pkgCache::State::ConfigFiles: WriteOkay(Okay, output, "\nStatus: config-files"); break;
+ case pkgCache::State::HalfInstalled: WriteOkay(Okay, output, "\nStatus: half-installed"); break;
+ case pkgCache::State::UnPacked: WriteOkay(Okay, output, "\nStatus: unpacked"); break;
+ case pkgCache::State::HalfConfigured: WriteOkay(Okay, output, "\nStatus: half-configured"); break;
+ case pkgCache::State::TriggersAwaited: WriteOkay(Okay, output, "\nStatus: triggers-awaited"); break;
+ case pkgCache::State::TriggersPending: WriteOkay(Okay, output, "\nStatus: triggers-pending"); break;
+ case pkgCache::State::Installed: WriteOkay(Okay, output, "\nStatus: installed"); break;
+ }
+ if (Pkg->SelectedState == pkgCache::State::Hold)
+ WriteOkay(Okay, output, "\nHold: yes");
+ // FIXME: Ideally, an EIPP request contains at most two versions (installed and to install)
+ if (Cache.GetCandidateVersion(Pkg) == Ver)
+ WriteOkay(Okay, output, "\nAPT-Candidate: yes");
+ return Okay;
+}
+ /*}}}*/
+// EIPP::WriteScenario - to the given file descriptor /*{{{*/
+bool EIPP::WriteScenario(pkgDepCache &Cache, FileFd &output, OpProgress * const Progress)
+{
+ if (Progress != NULL)
+ Progress->SubProgress(Cache.Head().VersionCount, _("Send scenario to planer"));
+ unsigned long p = 0;
+ bool Okay = output.Failed() == false;
+ std::vector<std::string> archs = APT::Configuration::getArchitectures();
+ std::vector<bool> pkgset(Cache.Head().VersionCount, true);
+ for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false && likely(Okay); ++Pkg)
+ {
+ std::string const arch = Pkg.Arch();
+ if (std::find(archs.begin(), archs.end(), arch) == archs.end())
+ continue;
+ for (pkgCache::VerIterator Ver = Pkg.VersionList(); Ver.end() == false && likely(Okay); ++Ver, ++p)
+ {
+ Okay &= WriteScenarioVersion(output, Pkg, Ver);
+ Okay &= WriteScenarioEIPPVersion(Cache, output, Pkg, Ver);
+ Okay &= WriteScenarioLimitedDependency(output, Ver, pkgset, true);
+ WriteOkay(Okay, output, "\n");
+ if (Progress != NULL && p % 100 == 0)
+ Progress->Progress(p);
+ }
+ }
+ return true;
+}
+ /*}}}*/
+// EIPP::ReadResponse - from the given file descriptor /*{{{*/
+bool EIPP::ReadResponse(int const input, pkgDepCache &Cache, OpProgress *Progress) {
+ /* We build an map id to mmap offset here
+ In theory we could use the offset as ID, but then VersionCount
+ couldn't be used to create other versionmappings anymore and it
+ would be too easy for a (buggy) solver to segfault APT… */
+ /*
+ unsigned long long const VersionCount = Cache.Head().VersionCount;
+ unsigned long VerIdx[VersionCount];
+ for (pkgCache::PkgIterator P = Cache.PkgBegin(); P.end() == false; ++P) {
+ for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; ++V)
+ VerIdx[V->ID] = V.Index();
+ }
+ */
+
+ FileFd in;
+ in.OpenDescriptor(input, FileFd::ReadOnly);
+ pkgTagFile response(&in, 100);
+ pkgTagSection section;
+
+ std::set<decltype(Cache.PkgBegin()->ID)> seenOnce;
+ while (response.Step(section) == true) {
+ if (section.Exists("Progress") == true) {
+ if (Progress != NULL) {
+ string msg = section.FindS("Message");
+ if (msg.empty() == true)
+ msg = _("Prepare for receiving solution");
+ Progress->SubProgress(100, msg, section.FindI("Percentage", 0));
+ }
+ continue;
+ } else if (section.Exists("Error") == true) {
+ std::string msg = SubstVar(SubstVar(section.FindS("Message"), "\n .\n", "\n\n"), "\n ", "\n");
+ if (msg.empty() == true) {
+ msg = _("External planer failed without a proper error message");
+ _error->Error("%s", msg.c_str());
+ } else
+ _error->Error("External planer failed with: %s", msg.substr(0,msg.find('\n')).c_str());
+ if (Progress != NULL)
+ Progress->Done();
+ std::cerr << "The planer encountered an error of type: " << section.FindS("Error") << std::endl;
+ std::cerr << "The following information might help you to understand what is wrong:" << std::endl;
+ std::cerr << msg << std::endl << std::endl;
+ return false;
+ } else {
+ _error->Warning("Encountered an unexpected section with %d fields", section.Count());
+ }
+ }
+ return true;
+}
+ /*}}}*/
projects / apt.git / blobdiff