diff options
Diffstat (limited to 'apt-pkg')
| -rw-r--r-- | apt-pkg/edsp.cc | 30 | ||||
| -rw-r--r-- | apt-pkg/edsp.h | 16 |
2 files changed, 46 insertions, 0 deletions
diff --git a/apt-pkg/edsp.cc b/apt-pkg/edsp.cc index 88569d3c4..2e6ef6271 100644 --- a/apt-pkg/edsp.cc +++ b/apt-pkg/edsp.cc @@ -327,6 +327,36 @@ bool EDSP::WriteLimitedScenario(pkgDepCache &Cache, FileFd &output, Progress->Done(); return Okay; } + +static void MarkPackage(std::vector<bool> &pkgset, pkgCache::PkgIterator pkg) +{ + if (pkgset[pkg->ID]) + return; + pkgset[pkg->ID] = true; + for (auto ver = pkg.VersionList(); not ver.end(); ++ver) + { + for (auto P = ver.ProvidesList(); not P.end(); ++P) + MarkPackage(pkgset, P.ParentPkg()); + for (auto D = ver.DependsList(); not D.end(); ++D) + { + std::unique_ptr<pkgCache::Version *[]> targets(D.AllTargets()); + for (size_t i = 0; targets[i] != 0; ++i) + MarkPackage(pkgset, pkgCache::VerIterator(*ver.Cache(), targets[i]).ParentPkg()); + + MarkPackage(pkgset, D.TargetPkg()); + } + } +} + +bool EDSP::WriteLimitedScenario(pkgDepCache &Cache, FileFd &output, + OpProgress *Progress) +{ + std::vector<bool> pkgset(Cache.Head().PackageCount); + for (auto Pkg = Cache.PkgBegin(); not Pkg.end(); ++Pkg) + if (Cache[Pkg].Install() || Pkg->CurrentVer) + MarkPackage(pkgset, Pkg); + return WriteLimitedScenario(Cache, output, pkgset, Progress); +} /*}}}*/ // EDSP::WriteRequest - to the given file descriptor /*{{{*/ bool EDSP::WriteRequest(pkgDepCache &Cache, FileFd &output, diff --git a/apt-pkg/edsp.h b/apt-pkg/edsp.h index 0c37e231d..22767bd7b 100644 --- a/apt-pkg/edsp.h +++ b/apt-pkg/edsp.h @@ -91,6 +91,22 @@ namespace EDSP /*{{{*/ std::vector<bool> const &pkgset, OpProgress *Progress = NULL); + /** \brief creates a limited scenario representing the package universe + * + * This method works similar to #WriteScenario as it works in the same + * way but doesn't send the complete universe to the solver but only + * packages reachable from installed packages or packages marked for + * install. + * + * \param Cache is the known package universe + * \param output is written to this "file" + * \param Progress is an instance to report progress to + * + * \return true if universe was composed successfully, otherwise false + */ + APT_PUBLIC bool WriteLimitedScenario(pkgDepCache &Cache, FileFd &output, + OpProgress *Progress = NULL); + /** \brief waits and acts on the information returned from the solver * * This method takes care of interpreting whatever the solver sends |