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authorMichael Vogt <mvo@debian.org>2013-08-17 10:07:20 +0200
committerMichael Vogt <mvo@debian.org>2013-08-17 10:07:20 +0200
commit1afd369d00f2f9272462ffc6c6e24f293a81459e (patch)
treec29c1671aceaf9055b6c89d1befab91fe375c32a /apt-pkg/algorithms.cc
parent43ffe2d15bfff049d1ffe10c7696c008495f5912 (diff)
parentb44c98f9d80ac59f6602e16e6aedd3a8f9f9485a (diff)
Merge branch 'debian/sid' into debian/experimental
Conflicts: cmdline/apt-get.cc debian/changelog
Diffstat (limited to 'apt-pkg/algorithms.cc')
-rw-r--r--apt-pkg/algorithms.cc43
1 files changed, 43 insertions, 0 deletions
diff --git a/apt-pkg/algorithms.cc b/apt-pkg/algorithms.cc
index 6296e8fe8..69d4acd83 100644
--- a/apt-pkg/algorithms.cc
+++ b/apt-pkg/algorithms.cc
@@ -459,6 +459,49 @@ bool pkgAllUpgrade(pkgDepCache &Cache)
return Fix.ResolveByKeep();
}
/*}}}*/
+// AllUpgradeNoDelete - Upgrade without removing packages /*{{{*/
+// ---------------------------------------------------------------------
+/* Right now the system must be consistent before this can be called.
+ * Upgrade as much as possible without deleting anything (useful for
+ * stable systems)
+ */
+bool pkgAllUpgradeNoDelete(pkgDepCache &Cache)
+{
+ pkgDepCache::ActionGroup group(Cache);
+
+ pkgProblemResolver Fix(&Cache);
+
+ if (Cache.BrokenCount() != 0)
+ return false;
+
+ // provide the initial set of stuff we want to upgrade by marking
+ // all upgradable packages for upgrade
+ for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
+ {
+ if (I->CurrentVer != 0 && Cache[I].InstallVer != 0)
+ {
+ if (_config->FindB("APT::Ignore-Hold",false) == false)
+ if (I->SelectedState == pkgCache::State::Hold)
+ continue;
+
+ Cache.MarkInstall(I, false, 0, false);
+ }
+ }
+
+ // then let auto-install loose
+ for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
+ if (Cache[I].Install())
+ Cache.MarkInstall(I, true, 0, false);
+
+ // ... but it may remove stuff, we we need to clean up afterwards again
+ for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
+ if (Cache[I].Delete() == true)
+ Cache.MarkKeep(I, false, false);
+
+ // resolve remaining issues via keep
+ return Fix.ResolveByKeep();
+}
+ /*}}}*/
// MinimizeUpgrade - Minimizes the set of packages to be upgraded /*{{{*/
// ---------------------------------------------------------------------
/* This simply goes over the entire set of packages and tries to keep