- 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;
+ 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)
+ {
+ // 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();
+ // no SourcePkg name, so it is the "binary" name
+ if (Src.empty() == true)
+ Src = TmpSrc;
+ // no Version, so we try the Version of the SourcePkg -
+ // and after that the version of the binary package
+ if (VerTag.empty() == true)
+ 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->Warning(_("Ignore unavailable target release '%s' of package '%s'"), DefRel.c_str(), TmpSrc.c_str());
+ DefRel.clear();
+ }
+ }
+ 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 && 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