Notes on patches

To make Bazel's use of the official Android manifest merger tool consistent with the tools:targetApi attribute., com.android.tools.build_manifest-merger_25.0.0-patched.jar contains a patched OtherOperationType.class. The patched class is generated by compiling build-system/manifest-merger/src/main/java/com/android/manifmerger/OtherOperationType.java from commit 8fff824b40 in studio-master-dev with the following patch:

diff --git a/build-system/manifest-merger/src/main/java/com/android/manifmerger/OtherOperationType.java b/build-system/manifest-merger/src/main/java/com/android/manifmerger/OtherOperationType.java
index d0ca70b544..095a781f56 100644
--- a/build-system/manifest-merger/src/main/java/com/android/manifmerger/OtherOperationType.java
+++ b/build-system/manifest-merger/src/main/java/com/android/manifmerger/OtherOperationType.java
@@ -26,5 +26,5 @@ public enum OtherOperationType {
     ignore,
 
     // used to direct lint
-    targetAPI
+    targetApi,
 }

Commit 8fff824b40 was chosen as it was the latest commit before the release of the manifest-merger:25.0.0 artifact.

For more information, see https://github.com/bazelbuild/bazel/issues/6645.


To avoid using symbols which were removed in modern Guava versions, com.android.tools_sdk-common_25.0.0-patched.jar contains several patched classes. Steps to create the patched jar:

  1. git clone https://android.googlesource.com/platform/tools/base

  2. git checkout 3882fb8c9281a33c56377f20e865c8a858ee50d9

    This commit corresponds to the studio-2.0 tag, which corresponds to the sdk-common:25.0.0 artifact (apparently undocumented, but determined by diffing against the sources.jar).

  3. git am $BAZEL/third_party/android_common/sdk-common-guava.patch

    This fixes the use of symbols removed in modern Guava versions (CharMatcher.JAVA_LETTER, Objects.firstNonNull, and Objects.toStringHelper).

  4. git am $BAZEL/third_party/android_common/sdk-common-maven.patch

    This adds a usable pom.xml to allow rebuilding sdk-common using Maven (instead of Gradle with a specific version of the sdk-java-lib plugin, which is not easy to use/obtain) and fixes a build failure with modern JDKs.

  5. mvn compile

  6. curl -L -o sdk-common-25.0.0-patched.jar \
    https://repo1.maven.org/maven2/com/android/tools/sdk-common/25.0.0/sdk-common-25.0.0.jar
    
  7. cd target/classes && \
    jar ufv ../../sdk-common-25.0.0-patched.jar \
    com/android/ide/common/res2/DataSet*.class \
    com/android/ide/common/res2/MergeConsumer*.class \
    com/android/ide/common/res2/MergingException*.class \
    com/android/ide/common/res2/ResourceFile*.class \
    com/android/ide/common/res2/ResourceSet*.class \
    com/android/ide/common/resources/configuration/LocaleQualifier.class
    

The following jars contain the same contents as their versions without -stripped, except that we removed some classes from them.

  • com.android.tools.layoutlib_layoutlib_26.1.2-stripped.jar
  • com.android.tools_sdk-common_25.0.0-patched-stripped.jar

Classes removed: com/android/ide/common/util/AssetUtil.class com/android/ide/common/util/AssetUtil$FillEffect.class com/android/ide/common/util/AssetUtil$ShadowEffect.class com/android/ide/common/rendering/LayoutLibrary.class com/android/ide/common/rendering/api/IImageFactory.class com/android/ide/common/rendering/api/RenderSession.class com/android/ide/common/rendering/StaticRenderSession.class com/android/ide/common/vectordrawable/VdElement.class com/android/ide/common/vectordrawable/EllipseSolver.class com/android/ide/common/vectordrawable/SvgTree.class com/android/ide/common/vectordrawable/SvgGroupNode.class com/android/ide/common/vectordrawable/VdPath.class com/android/ide/common/vectordrawable/VdPath$Node.class com/android/ide/common/vectordrawable/SvgNode.class com/android/ide/common/vectordrawable/VdPreview.class com/android/ide/common/vectordrawable/SvgLeafNode.class com/android/ide/common/vectordrawable/VdTree.class com/android/ide/common/vectordrawable/VdNodeRender.class com/android/ide/common/vectordrawable/VdIcon.class com/android/ide/common/vectordrawable/VdGroup.class

These are unused in the bazel code base (transitively) and were the last remaining bits on the java.desktop dependency.