diff options
Diffstat (limited to 'apt-pkg/cacheset.cc')
| -rw-r--r-- | apt-pkg/cacheset.cc | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/apt-pkg/cacheset.cc b/apt-pkg/cacheset.cc index a4e330a0a..f5cf52159 100644 --- a/apt-pkg/cacheset.cc +++ b/apt-pkg/cacheset.cc @@ -582,6 +582,116 @@ bool VersionContainerInterface::FromPackage(VersionContainerInterface * const vc return found; } /*}}}*/ +// FromDependency - versions satisfying a given dependency /*{{{*/ +bool VersionContainerInterface::FromDependency(VersionContainerInterface * const vci, + pkgCacheFile &Cache, + pkgCache::DepIterator const &D, + CacheSetHelper::VerSelector const selector, + CacheSetHelper &helper) +{ + bool found = false; + switch(selector) { + case CacheSetHelper::ALL: + { + pkgCache::PkgIterator const T = D.TargetPkg(); + for (pkgCache::VerIterator Ver = T.VersionList(); Ver.end() == false; ++Ver) + { + if (D.IsSatisfied(Ver) == true) + { + vci->insert(Ver); + found = true; + } + for (pkgCache::PrvIterator Prv = T.ProvidesList(); Prv.end() != true; ++Prv) + { + pkgCache::VerIterator const V = Prv.OwnerVer(); + if (unlikely(V.end() == true) || D.IsSatisfied(Prv) == false) + continue; + vci->insert(V); + found = true; + } + } + return found; + } + case CacheSetHelper::CANDANDINST: + { + found = FromDependency(vci, Cache, D, CacheSetHelper::CANDIDATE, helper); + found &= FromDependency(vci, Cache, D, CacheSetHelper::INSTALLED, helper); + return found; + } + case CacheSetHelper::CANDIDATE: + { + pkgCache::PkgIterator const T = D.TargetPkg(); + pkgCache::VerIterator const Cand = Cache[T].CandidateVerIter(Cache); + if (Cand.end() == false && D.IsSatisfied(Cand) == true) + { + vci->insert(Cand); + found = true; + } + for (pkgCache::PrvIterator Prv = T.ProvidesList(); Prv.end() != true; ++Prv) + { + pkgCache::VerIterator const V = Prv.OwnerVer(); + pkgCache::VerIterator const Cand = Cache[Prv.OwnerPkg()].CandidateVerIter(Cache); + if (Cand.end() == true || V != Cand || D.IsSatisfied(Prv) == false) + continue; + vci->insert(Cand); + found = true; + } + return found; + } + case CacheSetHelper::INSTALLED: + { + pkgCache::PkgIterator const T = D.TargetPkg(); + pkgCache::VerIterator const Cand = T.CurrentVer(); + if (Cand.end() == false && D.IsSatisfied(Cand) == true) + { + vci->insert(Cand); + found = true; + } + for (pkgCache::PrvIterator Prv = T.ProvidesList(); Prv.end() != true; ++Prv) + { + pkgCache::VerIterator const V = Prv.OwnerVer(); + pkgCache::VerIterator const Cand = Prv.OwnerPkg().CurrentVer(); + if (Cand.end() == true || V != Cand || D.IsSatisfied(Prv) == false) + continue; + vci->insert(Cand); + found = true; + } + return found; + } + case CacheSetHelper::CANDINST: + return FromDependency(vci, Cache, D, CacheSetHelper::CANDIDATE, helper) || + FromDependency(vci, Cache, D, CacheSetHelper::INSTALLED, helper); + case CacheSetHelper::INSTCAND: + return FromDependency(vci, Cache, D, CacheSetHelper::INSTALLED, helper) || + FromDependency(vci, Cache, D, CacheSetHelper::CANDIDATE, helper); + case CacheSetHelper::NEWEST: + { + pkgCache::PkgIterator const T = D.TargetPkg(); + pkgCache::VerIterator const Cand = T.VersionList(); + if (Cand.end() == false && D.IsSatisfied(Cand) == true) + { + vci->insert(Cand); + found = true; + } + for (pkgCache::PrvIterator Prv = T.ProvidesList(); Prv.end() != true; ++Prv) + { + pkgCache::VerIterator const V = Prv.OwnerVer(); + pkgCache::VerIterator const Cand = Prv.OwnerPkg().VersionList(); + if (Cand.end() == true || V != Cand || D.IsSatisfied(Prv) == false) + continue; + vci->insert(Cand); + found = true; + } + return found; + } + case CacheSetHelper::RELEASE: + case CacheSetHelper::VERSIONNUMBER: + // both make no sense here, so always false + return false; + } + return found; +} + /*}}}*/ // getCandidateVer - Returns the candidate version of the given package /*{{{*/ pkgCache::VerIterator VersionContainerInterface::getCandidateVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) { |