-
-
-// TryToInstallBuildDep - Try to install a single package /*{{{*/
-// ---------------------------------------------------------------------
-/* This used to be inlined in DoInstall, but with the advent of regex package
- name matching it was split out.. */
-bool TryToInstallBuildDep(pkgCache::PkgIterator Pkg,pkgCacheFile &Cache,
- pkgProblemResolver &Fix,bool Remove,bool BrokenFix,
- bool AllowFail = true)
-{
- if (Cache[Pkg].CandidateVer == 0 && Pkg->ProvidesList != 0)
- {
- CacheSetHelperAPTGet helper(c1out);
- helper.showErrors(false);
- pkgCache::VerIterator Ver = helper.canNotFindNewestVer(Cache, Pkg);
- if (Ver.end() == false)
- Pkg = Ver.ParentPkg();
- else if (helper.showVirtualPackageErrors(Cache) == false)
- return AllowFail;
- }
-
- if (_config->FindB("Debug::BuildDeps",false) == true)
- {
- if (Remove == true)
- cout << " Trying to remove " << Pkg << endl;
- else
- cout << " Trying to install " << Pkg << endl;
- }
-
- if (Remove == true)
- {
- TryToRemove RemoveAction(Cache, &Fix);
- RemoveAction(Pkg.VersionList());
- } else if (Cache[Pkg].CandidateVer != 0) {
- TryToInstall InstallAction(Cache, &Fix, BrokenFix);
- InstallAction(Cache[Pkg].CandidateVerIter(Cache));
- InstallAction.doAutoInstall();
- } else
- return AllowFail;
-
- return true;
-}
- /*}}}*/
-// FindSrc - Find a source record /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-pkgSrcRecords::Parser *FindSrc(const char *Name,pkgRecords &Recs,
- pkgSrcRecords &SrcRecs,string &Src,
- pkgDepCache &Cache)
-{
- string VerTag;
- string DefRel = _config->Find("APT::Default-Release");
- string TmpSrc = Name;
-
- // extract the version/release from the pkgname
- const size_t found = TmpSrc.find_last_of("/=");
- if (found != string::npos) {
- if (TmpSrc[found] == '/')
- DefRel = TmpSrc.substr(found+1);
- else
- VerTag = TmpSrc.substr(found+1);
- TmpSrc = TmpSrc.substr(0,found);
- }
-
- /* Lookup the version of the package we would install if we were to
- install a version and determine the source package name, then look
- in the archive for a source package of the same name. */
- bool MatchSrcOnly = _config->FindB("APT::Get::Only-Source");
- const pkgCache::PkgIterator Pkg = Cache.FindPkg(TmpSrc);
- if (MatchSrcOnly == false && Pkg.end() == false)
- {
- if(VerTag.empty() == false || DefRel.empty() == false)
- {
- bool fuzzy = false;
- // we have a default release, try to locate the pkg. we do it like
- // this because GetCandidateVer() will not "downgrade", that means
- // "apt-get source -t stable apt" won't work on a unstable system
- for (pkgCache::VerIterator Ver = Pkg.VersionList();; ++Ver)
- {
- // try first only exact matches, later fuzzy matches
- if (Ver.end() == true)
- {
- if (fuzzy == true)
- break;
- fuzzy = true;
- Ver = Pkg.VersionList();
- // exit right away from the Pkg.VersionList() loop if we
- // don't have any versions
- if (Ver.end() == true)
- break;
- }
- // We match against a concrete version (or a part of this version)
- if (VerTag.empty() == false &&
- (fuzzy == true || Cache.VS().CmpVersion(VerTag, Ver.VerStr()) != 0) && // exact match
- (fuzzy == false || strncmp(VerTag.c_str(), Ver.VerStr(), VerTag.size()) != 0)) // fuzzy match
- continue;
-
- for (pkgCache::VerFileIterator VF = Ver.FileList();
- VF.end() == false; ++VF)
- {
- /* If this is the status file, and the current version is not the
- version in the status file (ie it is not installed, or somesuch)
- then it is not a candidate for installation, ever. This weeds
- out bogus entries that may be due to config-file states, or
- other. */
- if ((VF.File()->Flags & pkgCache::Flag::NotSource) ==
- pkgCache::Flag::NotSource && Pkg.CurrentVer() != Ver)
- continue;
-
- // or we match against a release
- if(VerTag.empty() == false ||
- (VF.File().Archive() != 0 && VF.File().Archive() == DefRel) ||
- (VF.File().Codename() != 0 && VF.File().Codename() == DefRel))
- {
- pkgRecords::Parser &Parse = Recs.Lookup(VF);
- Src = Parse.SourcePkg();
- // no SourcePkg name, so it is the "binary" name
- if (Src.empty() == true)
- Src = TmpSrc;
- // the Version we have is possibly fuzzy or includes binUploads,
- // so we use the Version of the SourcePkg (empty if same as package)
- VerTag = Parse.SourceVer();
- if (VerTag.empty() == true)
- VerTag = Ver.VerStr();
- break;
- }
- }
- if (Src.empty() == false)
- break;
- }
- if (Src.empty() == true)
- {
- // Sources files have no codename information
- if (VerTag.empty() == true && DefRel.empty() == false)
- {
- _error->Error(_("Ignore unavailable target release '%s' of package '%s'"), DefRel.c_str(), TmpSrc.c_str());
- return 0;
- }
- }
- }
- if (Src.empty() == true)
- {
- // if we don't have found a fitting package yet so we will
- // choose a good candidate and proceed with that.
- // Maybe we will find a source later on with the right VerTag
- pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);
- if (Ver.end() == false)
- {
- pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList());
- Src = Parse.SourcePkg();
- if (VerTag.empty() == true)
- VerTag = Parse.SourceVer();
- }
- }
- }
-
- if (Src.empty() == true)
- Src = TmpSrc;
- else
- {
- /* if we have a source pkg name, make sure to only search
- for srcpkg names, otherwise apt gets confused if there
- is a binary package "pkg1" and a source package "pkg1"
- with the same name but that comes from different packages */
- MatchSrcOnly = true;
- if (Src != TmpSrc)
- {
- ioprintf(c1out, _("Picking '%s' as source package instead of '%s'\n"), Src.c_str(), TmpSrc.c_str());
- }
- }
-
- // The best hit
- pkgSrcRecords::Parser *Last = 0;
- unsigned long Offset = 0;
- string Version;
-
- /* Iterate over all of the hits, which includes the resulting
- binary packages in the search */
- pkgSrcRecords::Parser *Parse;
- while (true)
- {
- SrcRecs.Restart();
- while ((Parse = SrcRecs.Find(Src.c_str(), MatchSrcOnly)) != 0)
- {
- const string Ver = Parse->Version();
-
- // Ignore all versions which doesn't fit
- if (VerTag.empty() == false &&
- Cache.VS().CmpVersion(VerTag, Ver) != 0) // exact match
- continue;
-
- // Newer version or an exact match? Save the hit
- if (Last == 0 || Cache.VS().CmpVersion(Version,Ver) < 0) {
- Last = Parse;
- Offset = Parse->Offset();
- Version = Ver;
- }
-
- // was the version check above an exact match? If so, we don't need to look further
- if (VerTag.empty() == false && VerTag.size() == Ver.size())
- break;
- }
- if (Last != 0 || VerTag.empty() == true)
- break;
- //if (VerTag.empty() == false && Last == 0)
- _error->Error(_("Ignore unavailable version '%s' of package '%s'"), VerTag.c_str(), TmpSrc.c_str());
- return 0;
- }
-
- if (Last == 0 || Last->Jump(Offset) == false)
- return 0;
-
- return Last;
-}
- /*}}}*/
projects / apt.git / blobdiff