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- // -*- 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/algorithms.h>
- #include <apt-pkg/fileutl.h>
- #include <apt-pkg/pkgsystem.h>
- #include <apt-pkg/upgrade.h>
- #include <unistd.h>
- #include <cstdio>
- #include <apti18n.h>
- /*}}}*/
- // 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__);
- 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");
- return true;
- }
- /*}}}*/
- 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;
- }
- // See if the help should be shown
- if (_config->FindB("help") == true ||
- _config->FindB("version") == true) {
- ShowHelp(CmdL);
- return 1;
- }
- if (CmdL.FileList[0] != 0 && strcmp(CmdL.FileList[0], "scenario") == 0)
- {
- if (pkgInitSystem(*_config,_system) == false) {
- std::cerr << "System could not be initialized!" << std::endl;
- return 1;
- }
- pkgCacheFile CacheFile;
- CacheFile.Open(NULL, false);
- APT::PackageSet pkgset = APT::PackageSet::FromCommandLine(CacheFile, CmdL.FileList + 1);
- FILE* output = stdout;
- if (pkgset.empty() == true)
- EDSP::WriteScenario(CacheFile, output);
- else
- EDSP::WriteLimitedScenario(CacheFile, output, pkgset);
- fclose(output);
- _error->DumpErrors(std::cerr);
- return 0;
- }
- // 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::EDSP::WriteSolution", true);
- _config->Set("APT::Solver", "internal");
- _config->Set("edsp::scenario", "stdin");
- int input = STDIN_FILENO;
- FILE* output = stdout;
- 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;
- }
- EDSP::WriteProgress(1, "Read request…", output);
- if (WaitFd(input, false, 5) == false)
- std::cerr << "WAIT timed out in the resolver" << std::endl;
- std::list<std::string> 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;
- }
- EDSP::WriteProgress(5, "Read scenario…", output);
- pkgCacheFile CacheFile;
- CacheFile.Open(NULL, false);
- 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;
- }
- pkgProblemResolver Fix(CacheFile);
- for (std::list<std::string>::const_iterator i = remove.begin();
- i != remove.end(); ++i) {
- pkgCache::PkgIterator P = CacheFile->FindPkg(*i);
- Fix.Clear(P);
- Fix.Protect(P);
- Fix.Remove(P);
- }
- for (std::list<std::string>::const_iterator i = install.begin();
- i != install.end(); ++i) {
- pkgCache::PkgIterator P = CacheFile->FindPkg(*i);
- Fix.Clear(P);
- Fix.Protect(P);
- }
- for (std::list<std::string>::const_iterator i = install.begin();
- i != install.end(); ++i)
- CacheFile->MarkInstall(CacheFile->FindPkg(*i), true);
- EDSP::WriteProgress(60, "Call problemresolver on current scenario…", output);
- if (upgrade == true) {
- if (pkgAllUpgrade(CacheFile) == false) {
- EDSP::WriteError("ERR_UNSOLVABLE_UPGRADE", "An upgrade error occurred", output);
- return 0;
- }
- } else if (distUpgrade == true) {
- if (pkgDistUpgrade(CacheFile) == false) {
- EDSP::WriteError("ERR_UNSOLVABLE_DIST_UPGRADE", "An dist-upgrade error occurred", output);
- return 0;
- }
- } else if (Fix.Resolve() == false) {
- EDSP::WriteError("ERR_UNSOLVABLE", "An error occurred", 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;
- }
- 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;
- }
- /*}}}*/
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