- // We want to pull the version off the package specification..
- string VerTag;
- string TmpSrc = Name;
- string::size_type Slash = TmpSrc.rfind('=');
-
- // honor default release
- string DefRel = _config->Find("APT::Default-Release");
- pkgCache::PkgIterator Pkg = Cache.FindPkg(TmpSrc);
-
- if (Slash != string::npos)
- {
- VerTag = string(TmpSrc.begin() + Slash + 1,TmpSrc.end());
- TmpSrc = string(TmpSrc.begin(),TmpSrc.begin() + Slash);
- }
- else if(!Pkg.end() && 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;
-
- //std::cout << VF.File().Archive() << std::endl;
- if(VF.File().Archive() && (VF.File().Archive() == DefRel))
- {
- VerTag = Ver.VerStr();
- break;
- }
- }
- }
- }
-
- /* 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. */
- if (_config->FindB("APT::Get::Only-Source") == false)
- {
- if (Pkg.end() == false)
- {
- pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);
- if (Ver.end() == false)
- {
- pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList());
- Src = Parse.SourcePkg();
- }
- }
- }
-
- // No source package name..
- if (Src.empty() == true)
- Src = TmpSrc;
-
- // The best hit
- pkgSrcRecords::Parser *Last = 0;
- unsigned long Offset = 0;
- string Version;
- bool IsMatch = false;
-
- // If we are matching by version then we need exact matches to be happy
- if (VerTag.empty() == false)
- IsMatch = true;
-
- /* Iterate over all of the hits, which includes the resulting
- binary packages in the search */
- pkgSrcRecords::Parser *Parse;
- SrcRecs.Restart();
- while ((Parse = SrcRecs.Find(Src.c_str(),false)) != 0)
- {
- string Ver = Parse->Version();
-
- // Skip name mismatches
- if (IsMatch == true && Parse->Package() != Src)
- continue;
-
- if (VerTag.empty() == false)
- {
- /* Don't want to fall through because we are doing exact version
- matching. */
- if (Cache.VS().CmpVersion(VerTag,Ver) != 0)
- continue;
-
- Last = Parse;
- Offset = Parse->Offset();
- break;
- }
-
- // Newer version or an exact match
- if (Last == 0 || Cache.VS().CmpVersion(Version,Ver) < 0 ||
- (Parse->Package() == Src && IsMatch == false))
- {
- IsMatch = Parse->Package() == Src;
- Last = Parse;
- Offset = Parse->Offset();
- Version = Ver;
- }
- }
-
- if (Last == 0 || Last->Jump(Offset) == false)
- return 0;
-
- return Last;
+ string VerTag;
+ string DefRel = _config->Find("APT::Default-Release");
+ string TmpSrc = Name;
+ const size_t found = TmpSrc.find_last_of("/=");
+
+ // extract the version/release from the pkgname
+ 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) {
+ // 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();
+ }
+ }
+ }
+
+ 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 && strncmp(VerTag.c_str(), Ver.c_str(), VerTag.size()) != 0)
+ 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->Warning(_("Ignore unavailable version '%s' of package '%s'"), VerTag.c_str(), TmpSrc.c_str());
+ VerTag.clear();
+ }
+
+ if (Last == 0 || Last->Jump(Offset) == false)
+ return 0;
+
+ return Last;
projects / apt.git / blobdiff