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authorDavid Kalnischkies <kalnischkies@gmail.com>2010-05-27 18:13:52 +0200
committerDavid Kalnischkies <kalnischkies@gmail.com>2010-05-27 18:13:52 +0200
commiteb6f9bac96a2b1938df598f4fd7c68d22c68a230 (patch)
treec7ebd0cf6c25efe4bbf388e3eae2ff7818012426 /apt-pkg/deb
parent6cb1060b58d8add6e04cc30241d3ef0f45ad226d (diff)
downloadapt-eb6f9bac96a2b1938df598f4fd7c68d22c68a230.tar.gz
forward manual-installed bit on package disappearance
Diffstat (limited to 'apt-pkg/deb')
-rw-r--r--apt-pkg/deb/dpkgpm.cc47
-rw-r--r--apt-pkg/deb/dpkgpm.h15
2 files changed, 61 insertions, 1 deletions
diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 35b10975..0ac6ac16 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 b1459b1f..9a4478f7 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