run update post-invokes even on (partial) failures

Unsecure repositories result in error messages by default which causes
the acquire run to fail hard, but non-failing repositories are still
updated just like in the slightly less hard-failures which got this
behaviour in 35664152e47a1d4d712fd52e0f0a2dc8ed359d32.

apt-pkg/update.cc

@@ -56,26 +56,38 @@ bool AcquireUpdate(pkgAcquire &Fetcher, int const PulseInterval,
    else
       res = Fetcher.Run();
 
-   if (res == pkgAcquire::Failed)
-      return false;
-
-   bool Failed = false;
+   bool const errorsWereReported = (res == pkgAcquire::Failed);
+   bool Failed = errorsWereReported;
    bool TransientNetworkFailure = false;
    bool AllFailed = true;
    for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); 
 	I != Fetcher.ItemsEnd(); ++I)
    {
-      if ((*I)->Status == pkgAcquire::Item::StatDone) {
-	 AllFailed = false;
-	 continue;
+      switch ((*I)->Status)
+      {
+	 case pkgAcquire::Item::StatDone:
+	    AllFailed = false;
+	    continue;
+	 case pkgAcquire::Item::StatTransientNetworkError:
+	    TransientNetworkFailure = true;
+	    break;
+	 case pkgAcquire::Item::StatIdle:
+	 case pkgAcquire::Item::StatFetching:
+	 case pkgAcquire::Item::StatError:
+	 case pkgAcquire::Item::StatAuthError:
+	    Failed = true;
+	    break;
       }
 
       (*I)->Finished();
 
+      if (errorsWereReported)
+	 continue;
+
       ::URI uri((*I)->DescURI());
       uri.User.clear();
       uri.Password.clear();
-      string descUri = string(uri);
+      std::string const descUri = std::string(uri);
       // Show an error for non-transient failures, otherwise only warn
       if ((*I)->Status == pkgAcquire::Item::StatTransientNetworkError)
 	 _error->Warning(_("Failed to fetch %s  %s"), descUri.c_str(),
@@ -83,15 +95,8 @@ bool AcquireUpdate(pkgAcquire &Fetcher, int const PulseInterval,
       else
 	 _error->Error(_("Failed to fetch %s  %s"), descUri.c_str(),
 	       (*I)->ErrorText.c_str());
-      if ((*I)->Status == pkgAcquire::Item::StatTransientNetworkError) 
-      {
-	 TransientNetworkFailure = true;
-	 continue;
-      }
-
-      Failed = true;
    }
-   
+
    // Clean out any old list files
    // Keep "APT::Get::List-Cleanup" name for compatibility, but
    // this is really a global option for the APT library now
@@ -106,13 +111,14 @@ bool AcquireUpdate(pkgAcquire &Fetcher, int const PulseInterval,
    }
 
    bool Res = true;
-   
-   if (TransientNetworkFailure == true)
+
+   if (errorsWereReported == true)
+      Res = false;
+   else if (TransientNetworkFailure == true)
       Res = _error->Warning(_("Some index files failed to download. They have been ignored, or old ones used instead."));
    else if (Failed == true)
       Res = _error->Error(_("Some index files failed to download. They have been ignored, or old ones used instead."));
 
-
    // Run the success scripts if all was fine
    if (RunUpdateScripts == true)
    {

test/integration/test-apt-update-hooks

@@ -9,7 +9,7 @@ configarchitecture 'i386'
 confighashes 'SHA512'
 
 insertpackage 'unstable' 'foo' 'i386' '1.0'
-insertpackage 'testing' 'foo' 'any' '1.0'
+insertpackage 'testing' 'foo' 'i386' '1.0'
 
 setupaptarchive --no-update
 APTARCHIVE="$(readlink -f ./aptarchive)"
@@ -28,16 +28,22 @@ testsuccess grep "SUCCESS" aptupdate.output
 
 msgmsg "Some sources broken => run Post-Invoke-Success and Post-Invoke"
 sed -i -e '/^ / d' -e '/^SHA512:/ d' "$APTARCHIVE/dists/unstable/Release"
+testsuccess rm "$(aptget indextargets 'Created-By: Packages' 'Suite: testing' --format '$(FILENAME)')"
 signreleasefiles
-testfailure aptget update
+listcurrentlistsdirectory > lists.before
+testfailure apt update
 cp rootdir/tmp/testfailure.output aptupdate.output
+listcurrentlistsdirectory > lists.after
+testfailure cmp lists.before lists.after
 testsuccess grep "RUN" aptupdate.output
 testsuccess grep "SUCCESS" aptupdate.output
 
 msgmsg "All sources broken => run Post-Invoke"
 sed -i -e '/^ / d' -e '/^SHA512:/ d' "$APTARCHIVE/dists/testing/Release"
 signreleasefiles
-testfailure aptget update
+mv lists.after lists.before
+testfailure apt update
 cp rootdir/tmp/testfailure.output aptupdate.output
+testfileequal lists.before "$(listcurrentlistsdirectory)"
 testsuccess grep "RUN" aptupdate.output
 testfailure grep "SUCCESS" aptupdate.output