| 1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ |
| 3 | /* ##################################################################### |
| 4 | |
| 5 | cover around the internal solver to be able to run it like an external |
| 6 | |
| 7 | ##################################################################### */ |
| 8 | /*}}}*/ |
| 9 | // Include Files /*{{{*/ |
| 10 | #include <apt-pkg/error.h> |
| 11 | #include <apt-pkg/cmndline.h> |
| 12 | #include <apt-pkg/init.h> |
| 13 | #include <apt-pkg/cachefile.h> |
| 14 | #include <apt-pkg/strutl.h> |
| 15 | #include <apt-pkg/edsp.h> |
| 16 | #include <apt-pkg/algorithms.h> |
| 17 | #include <apt-pkg/fileutl.h> |
| 18 | |
| 19 | #include <config.h> |
| 20 | #include <apti18n.h> |
| 21 | |
| 22 | #include <unistd.h> |
| 23 | #include <cstdio> |
| 24 | /*}}}*/ |
| 25 | |
| 26 | // ShowHelp - Show a help screen /*{{{*/ |
| 27 | // --------------------------------------------------------------------- |
| 28 | /* */ |
| 29 | bool ShowHelp(CommandLine &CmdL) { |
| 30 | ioprintf(std::cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,VERSION, |
| 31 | COMMON_ARCH,__DATE__,__TIME__); |
| 32 | |
| 33 | std::cout << |
| 34 | _("Usage: apt-internal-resolver\n" |
| 35 | "\n" |
| 36 | "apt-internal-resolver is an interface to use the current internal\n" |
| 37 | "like an external resolver for the APT family for debugging or alike\n" |
| 38 | "\n" |
| 39 | "Options:\n" |
| 40 | " -h This help text.\n" |
| 41 | " -q Loggable output - no progress indicator\n" |
| 42 | " -c=? Read this configuration file\n" |
| 43 | " -o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp\n" |
| 44 | "apt.conf(5) manual pages for more information and options.\n" |
| 45 | " This APT has Super Cow Powers.\n"); |
| 46 | return true; |
| 47 | } |
| 48 | /*}}}*/ |
| 49 | int main(int argc,const char *argv[]) /*{{{*/ |
| 50 | { |
| 51 | CommandLine::Args Args[] = { |
| 52 | {'h',"help","help",0}, |
| 53 | {'v',"version","version",0}, |
| 54 | {'q',"quiet","quiet",CommandLine::IntLevel}, |
| 55 | {'q',"silent","quiet",CommandLine::IntLevel}, |
| 56 | {'c',"config-file",0,CommandLine::ConfigFile}, |
| 57 | {'o',"option",0,CommandLine::ArbItem}, |
| 58 | {0,0,0,0}}; |
| 59 | |
| 60 | CommandLine CmdL(Args,_config); |
| 61 | if (pkgInitConfig(*_config) == false || |
| 62 | CmdL.Parse(argc,argv) == false) { |
| 63 | _error->DumpErrors(); |
| 64 | return 2; |
| 65 | } |
| 66 | |
| 67 | // See if the help should be shown |
| 68 | if (_config->FindB("help") == true || |
| 69 | _config->FindB("version") == true) { |
| 70 | ShowHelp(CmdL); |
| 71 | return 1; |
| 72 | } |
| 73 | |
| 74 | if (CmdL.FileList[0] != 0 && strcmp(CmdL.FileList[0], "scenario") == 0) |
| 75 | { |
| 76 | if (pkgInitSystem(*_config,_system) == false) { |
| 77 | std::cerr << "System could not be initialized!" << std::endl; |
| 78 | return 1; |
| 79 | } |
| 80 | pkgCacheFile CacheFile; |
| 81 | CacheFile.Open(NULL, false); |
| 82 | APT::PackageSet pkgset = APT::PackageSet::FromCommandLine(CacheFile, CmdL.FileList + 1); |
| 83 | FILE* output = stdout; |
| 84 | if (pkgset.empty() == true) |
| 85 | EDSP::WriteScenario(CacheFile, output); |
| 86 | else |
| 87 | EDSP::WriteLimitedScenario(CacheFile, output, pkgset); |
| 88 | fclose(output); |
| 89 | _error->DumpErrors(std::cerr); |
| 90 | return 0; |
| 91 | } |
| 92 | |
| 93 | // Deal with stdout not being a tty |
| 94 | if (!isatty(STDOUT_FILENO) && _config->FindI("quiet", -1) == -1) |
| 95 | _config->Set("quiet","1"); |
| 96 | |
| 97 | if (_config->FindI("quiet", 0) < 1) |
| 98 | _config->Set("Debug::EDSP::WriteSolution", true); |
| 99 | |
| 100 | _config->Set("APT::Solver", "internal"); |
| 101 | _config->Set("edsp::scenario", "stdin"); |
| 102 | int input = STDIN_FILENO; |
| 103 | FILE* output = stdout; |
| 104 | SetNonBlock(input, false); |
| 105 | |
| 106 | EDSP::WriteProgress(0, "Start up solver…", output); |
| 107 | |
| 108 | if (pkgInitSystem(*_config,_system) == false) { |
| 109 | std::cerr << "System could not be initialized!" << std::endl; |
| 110 | return 1; |
| 111 | } |
| 112 | |
| 113 | EDSP::WriteProgress(1, "Read request…", output); |
| 114 | |
| 115 | if (WaitFd(input, false, 5) == false) |
| 116 | std::cerr << "WAIT timed out in the resolver" << std::endl; |
| 117 | |
| 118 | std::list<std::string> install, remove; |
| 119 | bool upgrade, distUpgrade, autoRemove; |
| 120 | if (EDSP::ReadRequest(input, install, remove, upgrade, distUpgrade, autoRemove) == false) { |
| 121 | std::cerr << "Parsing the request failed!" << std::endl; |
| 122 | return 2; |
| 123 | } |
| 124 | |
| 125 | EDSP::WriteProgress(5, "Read scenario…", output); |
| 126 | |
| 127 | pkgCacheFile CacheFile; |
| 128 | CacheFile.Open(NULL, false); |
| 129 | |
| 130 | EDSP::WriteProgress(50, "Apply request on scenario…", output); |
| 131 | |
| 132 | if (EDSP::ApplyRequest(install, remove, CacheFile) == false) { |
| 133 | std::cerr << "Failed to apply request to depcache!" << std::endl; |
| 134 | return 3; |
| 135 | } |
| 136 | |
| 137 | pkgProblemResolver Fix(CacheFile); |
| 138 | for (std::list<std::string>::const_iterator i = remove.begin(); |
| 139 | i != remove.end(); ++i) { |
| 140 | pkgCache::PkgIterator P = CacheFile->FindPkg(*i); |
| 141 | Fix.Clear(P); |
| 142 | Fix.Protect(P); |
| 143 | Fix.Remove(P); |
| 144 | } |
| 145 | |
| 146 | for (std::list<std::string>::const_iterator i = install.begin(); |
| 147 | i != install.end(); ++i) { |
| 148 | pkgCache::PkgIterator P = CacheFile->FindPkg(*i); |
| 149 | Fix.Clear(P); |
| 150 | Fix.Protect(P); |
| 151 | } |
| 152 | |
| 153 | for (std::list<std::string>::const_iterator i = install.begin(); |
| 154 | i != install.end(); ++i) |
| 155 | CacheFile->MarkInstall(CacheFile->FindPkg(*i), true); |
| 156 | |
| 157 | EDSP::WriteProgress(60, "Call problemresolver on current scenario…", output); |
| 158 | |
| 159 | if (upgrade == true) { |
| 160 | if (pkgAllUpgrade(CacheFile) == false) { |
| 161 | EDSP::WriteError("ERR_UNSOLVABLE_UPGRADE", "An upgrade error occured", output); |
| 162 | return 0; |
| 163 | } |
| 164 | } else if (distUpgrade == true) { |
| 165 | if (pkgDistUpgrade(CacheFile) == false) { |
| 166 | EDSP::WriteError("ERR_UNSOLVABLE_DIST_UPGRADE", "An dist-upgrade error occured", output); |
| 167 | return 0; |
| 168 | } |
| 169 | } else if (Fix.Resolve() == false) { |
| 170 | EDSP::WriteError("ERR_UNSOLVABLE", "An error occured", output); |
| 171 | return 0; |
| 172 | } |
| 173 | |
| 174 | EDSP::WriteProgress(95, "Write solution…", output); |
| 175 | |
| 176 | if (EDSP::WriteSolution(CacheFile, output) == false) { |
| 177 | std::cerr << "Failed to output the solution!" << std::endl; |
| 178 | return 4; |
| 179 | } |
| 180 | |
| 181 | EDSP::WriteProgress(100, "Done", output); |
| 182 | |
| 183 | bool const Errors = _error->PendingError(); |
| 184 | if (_config->FindI("quiet",0) > 0) |
| 185 | _error->DumpErrors(std::cerr); |
| 186 | else |
| 187 | _error->DumpErrors(std::cerr, GlobalError::DEBUG); |
| 188 | return Errors == true ? 100 : 0; |
| 189 | } |
| 190 | /*}}}*/ |