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Baseline: 87cc92e Cherry picks: + a615d28: Rollback context.actions.args() functionality. + 7b091c1: Add a global failure when a test is interrupted/cancelled. + 95b0467: Cleanups for Skylark tracebacks + cc9c2f0: Remove the status xml attribute from AntXmlResultWriter Incompatible changes: - Noop flag --deprecated_generate_xcode_project deleted. - Objects in Skylark are converted to strings in a more descriptive and less harmful way (they don't leak information that shouldn't be accessed by Skylark code, e.g. nondeterministic memory addresses of objects). - `set` is deprecated in BUILD and .bzl files, please use `depset` instead. Ordering names have also been changed, please use "default", "postorder", "preorder", and "topological" instead of "stable", "compile", "naive_link", and "link" correspondingly. - Integer overflow (on signed 32 bit numbers) in BUILD/bzl files is an error. - Keyword-only syntax in a function definition is now forbidden e.g. `def foo(a, *, b)` or `def foo(a, *b, c)` - --incompatible_comprehension_variables_do_not_leak defaults to "true." Iteration variable becomes inaccessible after a list/dict comprehension. New features: - There is now a 'siblings' query function. See the query documentation for more details. - Added the print_action command, which outputs the actions needed to build a given target in the form of an ExtraActionSummary proto in text format. - android_binary now supports proguard_apply_dictionary to specify a custom dictionary to use for choosing names to obfuscate classes and members to. Important changes: - 'strip' action is now configured via feature configuration - Flags from action_config get added first to the command line first, before the flags from features. - `bazel info output_path` no longer relies on the root directory filename being equal to the workspace name. - The `print` function now prints debug messages instead of warnings. - speedup of incremental dexing tools - --announce_rc now controls whether bazelrc startup options are printed to stderr. - Removing a few unused objc_provider keys. - Improved logging when workers have to be restarted due to its files having changed. - Top-level `if` statements are now forbidden. - Java protos are compiled to Java 7 bytecode. - All Android builds now use the desugar tool to support some Java 8 features by default. To disable, use the --nodesugar_for_android flag. - Skylark-related options may now appear as "common" command options in the .bazelrc - Python is now required to build bazel. - When the lvalue of an augmented assignment is a list, we now throw an error before evaluating the code (e.g. `a, b += 2, 3`). - New --build_runfile_manifests flag controls production of runfiles manifests. - Enable debug info for Java builds - Allow java_lite_proto_library in the deps of android rules. - .so files in APKs will be memory-page aligned when android_binary.nocompress_extensions contains ".so" and --experimental_android_use_nocompress_extensions_on_apk is specified. - Skylark providers can specify allowed fields and their documentation. - Support ctx.actions.args() for more efficient Skylark command line construction. - The remote HTTP/1.1 caching client (--remote_rest_cache) now distinquishes between action cache and CAS. The request URL for the action cache is prefixed with 'ac' and the URL for the CAS is prefixed with 'cas'. - `JavaInfo` is a preferred alias to `java_common.provider`. - J2ObjC version updated to 2.0.3. - A new Java coverage implementation is available. Makes possible coverage for Skylark JVM rules. - Make proguard_apply_dictionary also apply to class and package obfuscation, not just class members. - When using the dictionary literal syntax, it is now an error to have duplicated keys (e.g. {'ab': 3, 'ab': 5}). - android_binary.nocompress_extensions now applies to all files in the APK, not just resources and assets. - The apple_genrule rule that is distributed with Bazel has been deleted. Users who wish to use genrules with Xcode's DEVELOPER_DIR set should use the rules in https://github.com/bazelbuild/rules_apple instead. - The swift_library rule that is distributed with Bazel has been deleted. Users who wish to compile Swift should use the rules in https://github.com/bazelbuild/rules_apple instead.
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