- /* 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) {
- // 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.end() == false; Ver++) {
- 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;
-
- // We match against a concrete version (or a part of this version)
- if (VerTag.empty() == false && strncmp(VerTag.c_str(), Ver.VerStr(), VerTag.size()) != 0)
- 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();
- if (VerTag.empty() == true)
- VerTag = Parse.SourceVer();
- break;
- }
- }
- }
- if (Src.empty() == true) {
- if (VerTag.empty() == false)
- _error->Warning(_("Ignore unavailable version '%s' of package '%s'"), VerTag.c_str(), TmpSrc.c_str());
- else
- _error->Warning(_("Ignore unavailable target release '%s' of package '%s'"), DefRel.c_str(), TmpSrc.c_str());
- VerTag.clear();
- DefRel.clear();
- }
- }
- if (VerTag.empty() == true && DefRel.empty() == true) {
- // if we don't have a version or default release, use the CandidateVer to find the Source
- pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);
- if (Ver.end() == false) {
- pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList());
- Src = Parse.SourcePkg();
- VerTag = Parse.SourceVer();
- }
- }
- }
+ /* 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;