diff options
Diffstat (limited to 'apt-pkg/deb')
| -rw-r--r-- | apt-pkg/deb/dpkgpm.cc | 47 | ||||
| -rw-r--r-- | apt-pkg/deb/dpkgpm.h | 15 |
2 files changed, 61 insertions, 1 deletions
diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc index 35b10975f..0ac6ac168 100644 --- a/apt-pkg/deb/dpkgpm.cc +++ b/apt-pkg/deb/dpkgpm.cc @@ -470,7 +470,7 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line) std::clog << "send: '" << status.str() << "'" << endl; if (strncmp(action, "disappear", strlen("disappear")) == 0) - disappearedPkgs.insert(string(pkg_or_trigger)); + handleDisappearAction(pkg_or_trigger); return; } @@ -530,6 +530,51 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line) << " action: " << action << endl; } /*}}}*/ +// DPkgPM::handleDisappearAction /*{{{*/ +void pkgDPkgPM::handleDisappearAction(string const &pkgname) +{ + // record the package name for display and stuff later + disappearedPkgs.insert(pkgname); + + pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname); + if (unlikely(Pkg.end() == true)) + return; + // the disappeared package was auto-installed - nothing to do + if ((Cache[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) + return; + pkgCache::VerIterator PkgVer = Pkg.CurrentVer(); + if (unlikely(PkgVer.end() == true)) + return; + /* search in the list of dependencies for (Pre)Depends, + check if this dependency has a Replaces on our package + and if so transfer the manual installed flag to it */ + for (pkgCache::DepIterator Dep = PkgVer.DependsList(); Dep.end() != true; ++Dep) + { + if (Dep->Type != pkgCache::Dep::Depends && + Dep->Type != pkgCache::Dep::PreDepends) + continue; + pkgCache::PkgIterator Tar = Dep.TargetPkg(); + if (unlikely(Tar.end() == true)) + continue; + // the package is already marked as manual + if ((Cache[Tar].Flags & pkgCache::Flag::Auto) != pkgCache::Flag::Auto) + continue; + pkgCache::VerIterator TarVer = Tar.CurrentVer(); + for (pkgCache::DepIterator Rep = TarVer.DependsList(); Rep.end() != true; ++Rep) + { + if (Rep->Type != pkgCache::Dep::Replaces) + continue; + if (Pkg != Rep.TargetPkg()) + continue; + // okay, they are strongly connected - transfer manual-bit + if (Debug == true) + std::clog << "transfer manual-bit from disappeared »" << pkgname << "« to »" << Tar.FullName() << "«" << std::endl; + Cache[Tar].Flags &= ~Flag::Auto; + break; + } + } +} + /*}}}*/ // DPkgPM::DoDpkgStatusFd /*{{{*/ // --------------------------------------------------------------------- /* diff --git a/apt-pkg/deb/dpkgpm.h b/apt-pkg/deb/dpkgpm.h index b1459b1f6..9a4478f7c 100644 --- a/apt-pkg/deb/dpkgpm.h +++ b/apt-pkg/deb/dpkgpm.h @@ -32,6 +32,21 @@ class pkgDPkgPM : public pkgPackageManager FILE *history_out; string dpkg_error; + /** \brief record the disappear action and handle accordingly + + dpkg let packages disappear then they have no files any longer and + nothing depends on them. We need to collect this as dpkg as well as + APT doesn't know beforehand that the package will disappear, so the + only possible option is to tell the user afterwards about it. + To enhance the experience we also try to forward the auto-install + flag so the disappear-causer(s) are not autoremoved next time - + for the transfer to happen the disappeared version needs to depend + on the package the flag should be forwarded to and this package + needs to declare a Replaces on the disappeared package. + \param pkgname Name of the package that disappeared + */ + void handleDisappearAction(string const &pkgname); + protected: // progress reporting |