From d3930f8716f439c229cd3d11813823d847a2ecff Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Sun, 3 Jul 2016 13:57:25 +0200 Subject: [PATCH] pass --force-remove-essential to dpkg only if needed APT (usually) knows which package is essential or not, so we can avoid passing this force flag to dpkg unconditionally if the user hasn't chosen a non-default essential handling obscuring the information. --- apt-pkg/deb/dpkgpm.cc | 15 +++++++++++++-- test/integration/test-essential-force-loopbreak | 3 +++ .../test-ubuntu-bug-761175-remove-purge | 4 ++++ 3 files changed, 20 insertions(+), 2 deletions(-) diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc index 3d0fd622c..8938cb3d4 100644 --- a/apt-pkg/deb/dpkgpm.cc +++ b/apt-pkg/deb/dpkgpm.cc @@ -1233,6 +1233,15 @@ void pkgDPkgPM::StopPtyMagic() /*{{{*/ */ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress) { + auto const ItemIsEssential = [](pkgDPkgPM::Item const &I) { + static auto const cachegen = _config->Find("pkgCacheGen::Essential"); + if (cachegen == "none" || cachegen == "native") + return true; + if (unlikely(I.Pkg.end())) + return true; + return (I.Pkg->Flags & pkgCache::Flag::Essential) != 0; + }; + pkgPackageManager::SigINTStop = false; d->progress = progress; @@ -1350,13 +1359,15 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress) { case Item::Remove: ADDARGC("--force-depends"); - ADDARGC("--force-remove-essential"); + if (std::any_of(I, J, ItemIsEssential)) + ADDARGC("--force-remove-essential"); ADDARGC("--remove"); break; case Item::Purge: ADDARGC("--force-depends"); - ADDARGC("--force-remove-essential"); + if (std::any_of(I, J, ItemIsEssential)) + ADDARGC("--force-remove-essential"); ADDARGC("--purge"); break; diff --git a/test/integration/test-essential-force-loopbreak b/test/integration/test-essential-force-loopbreak index 6f7d99cb6..f585e9c42 100755 --- a/test/integration/test-essential-force-loopbreak +++ b/test/integration/test-essential-force-loopbreak @@ -43,6 +43,9 @@ E: Internal Error, Could not early remove sysvinit:$(dpkg --print-architecture) # with enough force however … cp -a dpkg.status.backup rootdir/var/lib/dpkg/status + testsuccess aptget install systemd-sysv -y -t "$1" -o APT::Force-LoopBreak=1 -o Debug::pkgDpkgPm=1 + cp rootdir/tmp/testsuccess.output apt.output + testsuccess grep -- '--force-remove-essential --remove sysvinit' apt.output testsuccess aptget install systemd-sysv -y -t "$1" -o APT::Force-LoopBreak=1 testdpkginstalled 'sysvinit' 'systemd-sysv' } diff --git a/test/integration/test-ubuntu-bug-761175-remove-purge b/test/integration/test-ubuntu-bug-761175-remove-purge index aae394ad8..6ae1a04e8 100755 --- a/test/integration/test-ubuntu-bug-761175-remove-purge +++ b/test/integration/test-ubuntu-bug-761175-remove-purge @@ -30,6 +30,8 @@ runtests() { testsuccess aptget install compiz-core-${PKG} -t "${RELEASE}" "$@" testdpkginstalled compiz-core-${PKG} + testsuccess aptget remove compiz-core-${PKG} -y "$@" -o Debug::pkgDpkgPm=1 + testfailure grep -- '--force-remove-essential' rootdir/tmp/testsuccess.output testsuccess aptget remove compiz-core-${PKG} -y "$@" testdpkgnotinstalled compiz-core-${PKG} testdpkgstatus 'rc' '1' "compiz-core-${PKG}" @@ -61,6 +63,8 @@ The following packages will be REMOVED: 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. Purg compiz-core-${PKG}" aptget purge compiz-core-${PKG} -s "$@" fi + testsuccess aptget purge compiz-core-${PKG} -y "$@" -o Debug::pkgDpkgPm=1 + testfailure grep -- '--force-remove-essential' rootdir/tmp/testsuccess.output testsuccess aptget purge compiz-core-${PKG} -y "$@" echo -n '' > rootdir/var/lib/dpkg/available # dpkg -l < 1.16.2 reads the available file by default, where the package can be found testequalor2 "dpkg-query: no packages found matching compiz-core-${PKG}" "No packages found matching compiz-core-${PKG}." dpkg -l compiz-core-${PKG} -- 2.45.2