Bazel: Provide toolchain with activated error prone warnings

On recent bazel versions it's trivial to apply package specific checks.
Provide custom java toolchain with all error prone warnings activated.

The list of all error prone warnings was borrowed from here: [1].

Test Plan:

  $ bazel build --java_toolchain //tools:error_prone_warnings_toolchain \
    //...

[1] https://github.com/bazelbuild/BUILD_file_generator/blob/master/tools/bazel_defs/java.bzl

Change-Id: I207a368555bfb7ddab8d782d46d563ce779a6211
Signed-off-by: David Ostrovsky <david@ostrovsky.org>
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

diff --git a/tools/BUILD b/tools/BUILD
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..84da3a8df8354ba3741513a1d1bd416e80d1da70 100644 (file)
--- a/tools/BUILD
+++ b/tools/BUILD
@@ -0,0 +1,107 @@
+load(
+    "@bazel_tools//tools/jdk:default_java_toolchain.bzl",
+    "JDK9_JVM_OPTS",
+    "default_java_toolchain",
+)
+
+default_java_toolchain(
+    name = "error_prone_warnings_toolchain",
+    bootclasspath = ["@bazel_tools//tools/jdk:platformclasspath9.jar"],
+    jvm_opts = JDK9_JVM_OPTS,
+    package_configuration = [
+        ":error_prone",
+    ],
+    visibility = ["//visibility:public"],
+)
+
+# This EP warnings list borrowed from here:
+# https://github.com/bazelbuild/BUILD_file_generator/blob/master/tools/bazel_defs/java.bzl
+java_package_configuration(
+    name = "error_prone",
+    javacopts = [
+        "-XepDisableWarningsInGeneratedCode",
+        "-Xep:MissingCasesInEnumSwitch:ERROR",
+        "-Xep:ReferenceEquality:WARN",
+        "-Xep:StringEquality:WARN",
+        "-Xep:WildcardImport:WARN",
+        "-Xep:AmbiguousMethodReference:WARN",
+        "-Xep:BadAnnotationImplementation:WARN",
+        "-Xep:BadComparable:WARN",
+        "-Xep:BoxedPrimitiveConstructor:ERROR",
+        "-Xep:CannotMockFinalClass:WARN",
+        "-Xep:ClassCanBeStatic:WARN",
+        "-Xep:ClassNewInstance:WARN",
+        "-Xep:DefaultCharset:WARN",
+        "-Xep:DoubleCheckedLocking:WARN",
+        "-Xep:ElementsCountedInLoop:WARN",
+        "-Xep:EqualsHashCode:WARN",
+        "-Xep:EqualsIncompatibleType:WARN",
+        "-Xep:ExpectedExceptionChecker:WARN",
+        "-Xep:Finally:WARN",
+        "-Xep:FloatingPointLiteralPrecision:WARN",
+        "-Xep:FragmentInjection:WARN",
+        "-Xep:FragmentNotInstantiable:WARN",
+        "-Xep:FunctionalInterfaceClash:WARN",
+        "-Xep:FutureReturnValueIgnored:WARN",
+        "-Xep:GetClassOnEnum:WARN",
+        "-Xep:ImmutableAnnotationChecker:WARN",
+        "-Xep:ImmutableEnumChecker:WARN",
+        "-Xep:IncompatibleModifiers:WARN",
+        "-Xep:InjectOnConstructorOfAbstractClass:WARN",
+        "-Xep:InputStreamSlowMultibyteRead:WARN",
+        "-Xep:IterableAndIterator:WARN",
+        "-Xep:JUnit3FloatingPointComparisonWithoutDelta:WARN",
+        "-Xep:JUnitAmbiguousTestClass:WARN",
+        "-Xep:LiteralClassName:WARN",
+        "-Xep:MissingFail:WARN",
+        "-Xep:MissingOverride:WARN",
+        "-Xep:MutableConstantField:WARN",
+        "-Xep:NarrowingCompoundAssignment:WARN",
+        "-Xep:NonAtomicVolatileUpdate:WARN",
+        "-Xep:NonOverridingEquals:WARN",
+        "-Xep:NullableConstructor:WARN",
+        "-Xep:NullablePrimitive:WARN",
+        "-Xep:NullableVoid:WARN",
+        "-Xep:OperatorPrecedence:WARN",
+        "-Xep:OverridesGuiceInjectableMethod:WARN",
+        "-Xep:PreconditionsInvalidPlaceholder:WARN",
+        "-Xep:ProtoFieldPreconditionsCheckNotNull:WARN",
+        "-Xep:ProtocolBufferOrdinal:WARN",
+        "-Xep:RequiredModifiers:WARN",
+        "-Xep:ShortCircuitBoolean:WARN",
+        "-Xep:SimpleDateFormatConstant:WARN",
+        "-Xep:StaticGuardedByInstance:WARN",
+        "-Xep:SynchronizeOnNonFinalField:WARN",
+        "-Xep:TruthConstantAsserts:WARN",
+        "-Xep:TypeParameterShadowing:WARN",
+        "-Xep:TypeParameterUnusedInFormals:WARN",
+        "-Xep:URLEqualsHashCode:WARN",
+        "-Xep:UnsynchronizedOverridesSynchronized:WARN",
+        "-Xep:WaitNotInLoop:WARN",
+    ],
+    packages = ["error_prone_packages"],
+)
+
+package_group(
+    name = "error_prone_packages",
+    packages = [
+        "//org.eclipse.jgit/...",
+        "//org.eclipse.jgit.ant/...",
+        "//org.eclipse.jgit.ant.test/...",
+        "//org.eclipse.jgit.archive/...",
+        "//org.eclipse.jgit.http.apache/...",
+        "//org.eclipse.jgit.http.server/...",
+        "//org.eclipse.jgit.http.test/...",
+        "//org.eclipse.jgit.junit/...",
+        "//org.eclipse.jgit.junit.http/...",
+        "//org.eclipse.jgit.lfs/...",
+        "//org.eclipse.jgit.lfs.server/...",
+        "//org.eclipse.jgit.lfs.server.test/...",
+        "//org.eclipse.jgit.lfs.test/...",
+        "//org.eclipse.jgit.packaging/...",
+        "//org.eclipse.jgit.pgm/...",
+        "//org.eclipse.jgit.pgm.test/...",
+        "//org.eclipse.jgit.test/...",
+        "//org.eclipse.jgit.ui/...",
+    ],
+)