Refactor zipalign to allow unit tests
Test: Self-tested
Bug: NA
Change-Id: If5e42735853e1508fbeb9fb420a9a9f129c2218f
diff --git a/tools/zipalign/include/ZipAlign.h b/tools/zipalign/include/ZipAlign.h
new file mode 100644
index 0000000..ab36086
--- /dev/null
+++ b/tools/zipalign/include/ZipAlign.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#ifndef ZIPALIGN_H
+#define ZIPALIGN_H
+
+namespace android {
+
+/*
+ * Generate a new, aligned, zip "output" from an "input" zip.
+ * - alignTo: Alignment (in bytes) for uncompressed entries.
+ * - force : Overwrite output if it exists, fail otherwise.
+ * - zopfli : Recompress compressed entries with more efficient algorithm.
+ * Copy compressed entries as-is, and unaligned, otherwise.
+ * - pageAlignSharedLibs: Align .so files to 4096 and other files to
+ * alignTo, or all files to alignTo if false..
+ *
+ * Returns 0 on success.
+ */
+int process(const char* input, const char* output, int alignTo, bool force,
+ bool zopfli, bool pageAlignSharedLibs);
+
+/*
+ * Verify the alignment of a zip archive.
+ * - alignTo: Alignment (in bytes) for uncompressed entries.
+ * - pageAlignSharedLibs: Align .so files to 4096 and other files to
+ * alignTo, or all files to alignTo if false..
+ *
+ * Returns 0 on success.
+ */
+int verify(const char* fileName, int alignTo, bool verbose,
+ bool pageAlignSharedLibs);
+
+} // namespace android
+
+#endif // ZIPALIGN_H