diff options
Diffstat (limited to 'apt-private/private-show.cc')
| -rw-r--r-- | apt-private/private-show.cc | 470 |
1 files changed, 470 insertions, 0 deletions
diff --git a/apt-private/private-show.cc b/apt-private/private-show.cc new file mode 100644 index 000000000..27338a08c --- /dev/null +++ b/apt-private/private-show.cc @@ -0,0 +1,470 @@ +// Includes /*{{{*/ +#include <config.h> + +#include <apt-pkg/cachefile.h> +#include <apt-pkg/cacheset.h> +#include <apt-pkg/cmndline.h> +#include <apt-pkg/error.h> +#include <apt-pkg/fileutl.h> +#include <apt-pkg/indexfile.h> +#include <apt-pkg/pkgrecords.h> +#include <apt-pkg/pkgsystem.h> +#include <apt-pkg/sourcelist.h> +#include <apt-pkg/strutl.h> +#include <apt-pkg/tagfile.h> +#include <apt-pkg/cacheiterators.h> +#include <apt-pkg/configuration.h> +#include <apt-pkg/depcache.h> +#include <apt-pkg/macros.h> +#include <apt-pkg/pkgcache.h> +#include <apt-pkg/policy.h> + +#include <apt-private/private-cacheset.h> +#include <apt-private/private-output.h> +#include <apt-private/private-show.h> + +#include <stdio.h> +#include <unistd.h> +#include <ostream> +#include <string> + +#include <apti18n.h> + /*}}}*/ + +static bool OpenPackagesFile(pkgCacheFile &CacheFile, pkgCache::VerIterator const &V,/*{{{*/ + FileFd &PkgF, pkgCache::VerFileIterator &Vf) +{ + pkgCache const * const Cache = CacheFile.GetPkgCache(); + if (unlikely(Cache == NULL)) + return false; + + // Find an appropriate file + Vf = V.FileList(); + for (; Vf.end() == false; ++Vf) + if ((Vf.File()->Flags & pkgCache::Flag::NotSource) == 0) + break; + if (Vf.end() == true) + Vf = V.FileList(); + + // Check and load the package list file + pkgCache::PkgFileIterator I = Vf.File(); + if (I.IsOk() == false) + return _error->Error(_("Package file %s is out of sync."),I.FileName()); + + // Read the record + return PkgF.Open(I.FileName(), FileFd::ReadOnly, FileFd::Extension); +} + /*}}}*/ +static APT_PURE unsigned char const* skipDescriptionFields(unsigned char const * DescP)/*{{{*/ +{ + char const * const TagName = "\nDescription"; + size_t const TagLen = strlen(TagName); + while ((DescP = (unsigned char*)strchr((char*)DescP, '\n')) != NULL) + { + if (DescP[1] == ' ') + DescP += 2; + else if (strncmp((char*)DescP, TagName, TagLen) == 0) + DescP += TagLen; + else + break; + } + if (DescP != NULL) + ++DescP; + return DescP; +} + /*}}}*/ +bool DisplayRecordV1(pkgCacheFile &CacheFile, pkgCache::VerIterator const &V,/*{{{*/ + std::ostream &out) +{ + FileFd PkgF; + pkgCache::VerFileIterator Vf; + if (OpenPackagesFile(CacheFile, V, PkgF, Vf) == false) + return false; + + pkgCache * const Cache = CacheFile.GetPkgCache(); + if (unlikely(Cache == NULL)) + return false; + + // Read the record (and ensure that it ends with a newline and NUL) + unsigned char *Buffer = new unsigned char[Cache->HeaderP->MaxVerFileSize+2]; + Buffer[Vf->Size] = '\n'; + Buffer[Vf->Size+1] = '\0'; + if (PkgF.Seek(Vf->Offset) == false || + PkgF.Read(Buffer,Vf->Size) == false) + { + delete [] Buffer; + return false; + } + + // Get a pointer to start of Description field + const unsigned char *DescP = (unsigned char*)strstr((char*)Buffer, "\nDescription"); + if (DescP != NULL) + ++DescP; + else + DescP = Buffer + Vf->Size; + + // Write all but Description + size_t const length = DescP - Buffer; + if (length != 0 && FileFd::Write(STDOUT_FILENO, Buffer, length) == false) + { + delete [] Buffer; + return false; + } + + // Show the right description + pkgRecords Recs(*Cache); + pkgCache::DescIterator Desc = V.TranslatedDescription(); + if (Desc.end() == false) + { + pkgRecords::Parser &P = Recs.Lookup(Desc.FileList()); + out << "Description" << ( (strcmp(Desc.LanguageCode(),"") != 0) ? "-" : "" ) << Desc.LanguageCode() << ": " << P.LongDesc(); + out << std::endl << "Description-md5: " << Desc.md5() << std::endl; + + // Find the first field after the description (if there is any) + DescP = skipDescriptionFields(DescP); + } + // else we have no translation, so we found a lonely Description-md5 -> don't skip it + + // write the rest of the buffer, but skip mixed in Descriptions* fields + while (DescP != NULL) + { + const unsigned char * const Start = DescP; + const unsigned char *End = (unsigned char*)strstr((char*)DescP, "\nDescription"); + if (End == NULL) + { + End = &Buffer[Vf->Size]; + DescP = NULL; + } + else + { + ++End; // get the newline into the output + DescP = skipDescriptionFields(End + strlen("Description")); + } + size_t const length = End - Start; + if (length != 0 && FileFd::Write(STDOUT_FILENO, Start, length) == false) + { + delete [] Buffer; + return false; + } + } + // write a final newline after the last field + out << std::endl; + + delete [] Buffer; + return true; +} + /*}}}*/ +static bool DisplayRecordV2(pkgCacheFile &CacheFile, pkgCache::VerIterator const &V,/*{{{*/ + std::ostream &out) +{ + FileFd PkgF; + pkgCache::VerFileIterator Vf; + if (OpenPackagesFile(CacheFile, V, PkgF, Vf) == false) + return false; + + // Check and load the package list file + pkgCache::PkgFileIterator I = Vf.File(); + if (I.IsOk() == false) + return _error->Error(_("Package file %s is out of sync."),I.FileName()); + + // find matching sources.list metaindex + pkgSourceList *SrcList = CacheFile.GetSourceList(); + pkgIndexFile *Index; + if (SrcList->FindIndex(I, Index) == false && + _system->FindIndex(I, Index) == false) + return _error->Error("Can not find indexfile for Package %s (%s)", + V.ParentPkg().Name(), V.VerStr()); + std::string source_index_file = Index->Describe(true); + + // Read the record + pkgTagSection Tags; + pkgTagFile TagF(&PkgF); + + if (TagF.Jump(Tags, V.FileList()->Offset) == false) + return _error->Error("Internal Error, Unable to parse a package record"); + + // make size nice + std::string installed_size; + if (Tags.FindI("Installed-Size") > 0) + strprintf(installed_size, "%sB", SizeToStr(Tags.FindI("Installed-Size")*1024).c_str()); + else + installed_size = _("unknown"); + std::string package_size; + if (Tags.FindI("Size") > 0) + strprintf(package_size, "%sB", SizeToStr(Tags.FindI("Size")).c_str()); + else + package_size = _("unknown"); + + const char *manual_installed = nullptr; + if (V.ParentPkg().CurrentVer() == V) + { + pkgDepCache *depCache = CacheFile.GetDepCache(); + if (unlikely(depCache == nullptr)) + return false; + pkgDepCache::StateCache &state = (*depCache)[V.ParentPkg()]; + manual_installed = !(state.Flags & pkgCache::Flag::Auto) ? "yes" : "no"; + } + + // FIXME: add verbose that does not do the removal of the tags? + std::vector<pkgTagSection::Tag> RW; + // delete, apt-cache show has this info and most users do not care + RW.push_back(pkgTagSection::Tag::Remove("MD5sum")); + RW.push_back(pkgTagSection::Tag::Remove("SHA1")); + RW.push_back(pkgTagSection::Tag::Remove("SHA256")); + RW.push_back(pkgTagSection::Tag::Remove("SHA512")); + RW.push_back(pkgTagSection::Tag::Remove("Filename")); + RW.push_back(pkgTagSection::Tag::Remove("Multi-Arch")); + RW.push_back(pkgTagSection::Tag::Remove("Architecture")); + RW.push_back(pkgTagSection::Tag::Remove("Conffiles")); + // we use the translated description + RW.push_back(pkgTagSection::Tag::Remove("Description")); + RW.push_back(pkgTagSection::Tag::Remove("Description-md5")); + // improve + RW.push_back(pkgTagSection::Tag::Rewrite("Package", V.ParentPkg().FullName(true))); + RW.push_back(pkgTagSection::Tag::Rewrite("Installed-Size", installed_size)); + RW.push_back(pkgTagSection::Tag::Remove("Size")); + RW.push_back(pkgTagSection::Tag::Rewrite("Download-Size", package_size)); + // add + if (manual_installed != nullptr) + RW.push_back(pkgTagSection::Tag::Rewrite("APT-Manual-Installed", manual_installed)); + RW.push_back(pkgTagSection::Tag::Rewrite("APT-Sources", source_index_file)); + + FileFd stdoutfd; + if (stdoutfd.OpenDescriptor(STDOUT_FILENO, FileFd::WriteOnly, false) == false || + Tags.Write(stdoutfd, TFRewritePackageOrder, RW) == false || stdoutfd.Close() == false) + return _error->Error("Internal Error, Unable to parse a package record"); + + // write the description + pkgCache * const Cache = CacheFile.GetPkgCache(); + if (unlikely(Cache == NULL)) + return false; + pkgRecords Recs(*Cache); + // FIXME: show (optionally) all available translations(?) + pkgCache::DescIterator Desc = V.TranslatedDescription(); + if (Desc.end() == false) + { + pkgRecords::Parser &P = Recs.Lookup(Desc.FileList()); + out << "Description: " << P.LongDesc(); + } + + // write a final newline (after the description) + out << std::endl << std::endl; + + return true; +} + /*}}}*/ +bool ShowPackage(CommandLine &CmdL) /*{{{*/ +{ + pkgCacheFile CacheFile; + CacheSetHelperVirtuals helper(true, GlobalError::NOTICE); + APT::CacheSetHelper::VerSelector const select = _config->FindB("APT::Cache::AllVersions", true) ? + APT::CacheSetHelper::ALL : APT::CacheSetHelper::CANDIDATE; + if (select == APT::CacheSetHelper::CANDIDATE && CacheFile.GetDepCache() == nullptr) + return false; + APT::VersionList const verset = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, select, helper); + int const ShowVersion = _config->FindI("APT::Cache::Show::Version", 1); + for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver) + if (ShowVersion <= 1) + { + if (DisplayRecordV1(CacheFile, Ver, std::cout) == false) + return false; + } + else + if (DisplayRecordV2(CacheFile, Ver, c1out) == false) + return false; + + if (select == APT::CacheSetHelper::CANDIDATE) + { + APT::VersionList const verset_all = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, APT::CacheSetHelper::ALL, helper); + int const records = verset_all.size() - verset.size(); + if (records > 0) + _error->Notice(P_("There is %i additional record. Please use the '-a' switch to see it", "There are %i additional records. Please use the '-a' switch to see them.", records), records); + } + + if (_config->FindB("APT::Cache::ShowVirtuals", false) == true) + for (APT::PackageSet::const_iterator Pkg = helper.virtualPkgs.begin(); + Pkg != helper.virtualPkgs.end(); ++Pkg) + { + c1out << "Package: " << Pkg.FullName(true) << std::endl; + c1out << "State: " << _("not a real package (virtual)") << std::endl; + // FIXME: show providers, see private-cacheset.h + // CacheSetHelperAPTGet::showVirtualPackageErrors() + } + + if (verset.empty() == true) + { + if (helper.virtualPkgs.empty() == true) + return _error->Error(_("No packages found")); + else + _error->Notice(_("No packages found")); + } + + return true; +} + /*}}}*/ +static std::string Sha1FromString(std::string const &input) /*{{{*/ +{ + // XXX: move to hashes.h: HashString::FromString() ? + SHA1Summation sha1; + sha1.Add(input.c_str(), input.length()); + return sha1.Result().Value(); +} + /*}}}*/ +bool ShowSrcPackage(CommandLine &CmdL) /*{{{*/ +{ + pkgCacheFile CacheFile; + pkgSourceList *List = CacheFile.GetSourceList(); + if (unlikely(List == NULL)) + return false; + + // Create the text record parsers + pkgSrcRecords SrcRecs(*List); + if (_error->PendingError() == true) + return false; + + bool found = false; + // avoid showing identical records + std::set<std::string> seen; + for (const char **I = CmdL.FileList + 1; *I != 0; I++) + { + SrcRecs.Restart(); + + pkgSrcRecords::Parser *Parse; + bool found_this = false; + while ((Parse = SrcRecs.Find(*I,false)) != 0) { + // SrcRecs.Find() will find both binary and source names + if (_config->FindB("APT::Cache::Only-Source", false) == true) + if (Parse->Package() != *I) + continue; + std::string sha1str = Sha1FromString(Parse->AsStr()); + if (std::find(seen.begin(), seen.end(), sha1str) == seen.end()) + { + std::cout << Parse->AsStr() << std::endl;; + found = true; + found_this = true; + seen.insert(sha1str); + } + } + if (found_this == false) { + _error->Warning(_("Unable to locate package %s"),*I); + continue; + } + } + if (found == false) + _error->Notice(_("No packages found")); + return true; +} + /*}}}*/ +// Policy - Show the results of the preferences file /*{{{*/ +bool Policy(CommandLine &CmdL) +{ + pkgCacheFile CacheFile; + pkgSourceList const * const SrcList = CacheFile.GetSourceList(); + if (unlikely(SrcList == nullptr)) + return false; + pkgCache * const Cache = CacheFile.GetPkgCache(); + if (unlikely(Cache == nullptr)) + return false; + pkgPolicy * const Plcy = CacheFile.GetPolicy(); + if (unlikely(Plcy == nullptr)) + return false; + + // Print out all of the package files + if (CmdL.FileList[1] == 0) + { + std::cout << _("Package files:") << std::endl; + for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F.end() == false; ++F) + { + if (F.Flagged(pkgCache::Flag::NoPackages)) + continue; + // Locate the associated index files so we can derive a description + pkgIndexFile *Indx; + if (SrcList->FindIndex(F,Indx) == false && + _system->FindIndex(F,Indx) == false) + return _error->Error(_("Cache is out of sync, can't x-ref a package file")); + + printf("%4i %s\n", + Plcy->GetPriority(F),Indx->Describe(true).c_str()); + + // Print the reference information for the package + std::string Str = F.RelStr(); + if (Str.empty() == false) + printf(" release %s\n",F.RelStr().c_str()); + if (F.Site() != 0 && F.Site()[0] != 0) + printf(" origin %s\n",F.Site()); + } + + // Show any packages have explicit pins + std::cout << _("Pinned packages:") << std::endl; + pkgCache::PkgIterator I = Cache->PkgBegin(); + for (;I.end() != true; ++I) + { + for (pkgCache::VerIterator V = I.VersionList(); !V.end(); ++V) { + auto Prio = Plcy->GetPriority(V, false); + if (Prio == 0) + continue; + + std::cout << " "; + // Print the package name and the version we are forcing to + ioprintf(std::cout, _("%s -> %s with priority %d\n"), I.FullName(true).c_str(), V.VerStr(), Prio); + } + } + return true; + } + + char const * const msgInstalled = _(" Installed: "); + char const * const msgCandidate = _(" Candidate: "); + short const InstalledLessCandidate = + mbstowcs(NULL, msgInstalled, 0) - mbstowcs(NULL, msgCandidate, 0); + short const deepInstalled = + (InstalledLessCandidate < 0 ? (InstalledLessCandidate*-1) : 0) - 1; + short const deepCandidate = + (InstalledLessCandidate > 0 ? (InstalledLessCandidate) : 0) - 1; + + // Print out detailed information for each package + APT::CacheSetHelper helper(true, GlobalError::NOTICE); + APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1, helper); + for (APT::PackageList::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg) + { + std::cout << Pkg.FullName(true) << ":" << std::endl; + + // Installed version + std::cout << msgInstalled << OutputInDepth(deepInstalled, " "); + if (Pkg->CurrentVer == 0) + std::cout << _("(none)") << std::endl; + else + std::cout << Pkg.CurrentVer().VerStr() << std::endl; + + // Candidate Version + std::cout << msgCandidate << OutputInDepth(deepCandidate, " "); + pkgCache::VerIterator V = Plcy->GetCandidateVer(Pkg); + if (V.end() == true) + std::cout << _("(none)") << std::endl; + else + std::cout << V.VerStr() << std::endl; + + // Show the priority tables + std::cout << _(" Version table:") << std::endl; + for (V = Pkg.VersionList(); V.end() == false; ++V) + { + if (Pkg.CurrentVer() == V) + std::cout << " *** " << V.VerStr(); + else + std::cout << " " << V.VerStr(); + + std::cout << " " << Plcy->GetPriority(V) << std::endl; + for (pkgCache::VerFileIterator VF = V.FileList(); VF.end() == false; ++VF) + { + // Locate the associated index files so we can derive a description + pkgIndexFile *Indx; + if (SrcList->FindIndex(VF.File(),Indx) == false && + _system->FindIndex(VF.File(),Indx) == false) + return _error->Error(_("Cache is out of sync, can't x-ref a package file")); + printf(" %4i %s\n",Plcy->GetPriority(VF.File()), + Indx->Describe(true).c_str()); + } + } + } + return true; +} + /*}}}*/ |