Keep disabled resources out of final apk
Test: Automated
Bug: 329436914
Flag: EXEMPT Aconfig not supported on host tools
Change-Id: Id5fdb025f004788ea40bdbd0b0df0dbda181f2c7
diff --git a/tools/aapt2/link/FlagDisabledResourceRemover.cpp b/tools/aapt2/link/FlagDisabledResourceRemover.cpp
new file mode 100644
index 0000000..e3289e2
--- /dev/null
+++ b/tools/aapt2/link/FlagDisabledResourceRemover.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "link/FlagDisabledResourceRemover.h"
+
+#include <algorithm>
+
+#include "ResourceTable.h"
+
+using android::ConfigDescription;
+
+namespace aapt {
+
+static bool KeepResourceEntry(const std::unique_ptr<ResourceEntry>& entry) {
+ if (entry->values.empty()) {
+ return true;
+ }
+ const auto end_iter = entry->values.end();
+ const auto remove_iter =
+ std::stable_partition(entry->values.begin(), end_iter,
+ [](const std::unique_ptr<ResourceConfigValue>& value) -> bool {
+ return value->flag_status != FlagStatus::Disabled;
+ });
+
+ bool keep = remove_iter != entry->values.begin();
+
+ entry->values.erase(remove_iter, end_iter);
+ return keep;
+}
+
+bool FlagDisabledResourceRemover::Consume(IAaptContext* context, ResourceTable* table) {
+ for (auto& pkg : table->packages) {
+ for (auto& type : pkg->types) {
+ const auto end_iter = type->entries.end();
+ const auto remove_iter = std::stable_partition(
+ type->entries.begin(), end_iter, [](const std::unique_ptr<ResourceEntry>& entry) -> bool {
+ return KeepResourceEntry(entry);
+ });
+
+ type->entries.erase(remove_iter, end_iter);
+ }
+ }
+ return true;
+}
+
+} // namespace aapt
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