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-rw-r--r--apt-pkg/policy.cc18
1 files changed, 16 insertions, 2 deletions
diff --git a/apt-pkg/policy.cc b/apt-pkg/policy.cc
index be96d4c84..2c22fe0da 100644
--- a/apt-pkg/policy.cc
+++ b/apt-pkg/policy.cc
@@ -56,8 +56,22 @@ pkgPolicy::pkgPolicy(pkgCache *Owner) : Pins(0), PFPriority(0), Cache(Owner)
// The config file has a master override.
string DefRel = _config->Find("APT::Default-Release");
if (DefRel.empty() == false)
- CreatePin(pkgVersionMatch::Release,"",DefRel,990);
-
+ {
+ bool found = false;
+ // FIXME: make ExpressionMatches static to use it here easily
+ pkgVersionMatch vm("", pkgVersionMatch::None);
+ for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); ++F)
+ {
+ if ((F->Archive != 0 && vm.ExpressionMatches(DefRel, F.Archive()) == true) ||
+ (F->Codename != 0 && vm.ExpressionMatches(DefRel, F.Codename()) == true) ||
+ (F->Version != 0 && vm.ExpressionMatches(DefRel, F.Version()) == true))
+ found = true;
+ }
+ if (found == false)
+ _error->Error(_("The value '%s' is invalid for APT::Default-Release as such a release is not available in the sources"), DefRel.c_str());
+ else
+ CreatePin(pkgVersionMatch::Release,"",DefRel,990);
+ }
InitDefaults();
}
/*}}}*/