Release 0.19.0rc1 (2018-10-01)
Baseline: ac880418885061d1039ad6b3d8c28949782e02d6
Incompatible changes:
- New bazelrc file list.
- Adds --incompatible_expand_directories to automatically expand directories in skylark command lines. Design doc: https://docs.google.com/document/d/11agWFiOUiz2htBLj6swPTob5z78TrC xm8DQE4uJLOwM
- --incompatible_package_name_is_a_function now defaults to true. The magic values PACKAGE_NAME and REPOSITORY_NAME are no longer exposed.
New features:
- Add --modify_execution_info, a flag to customize action execution info.
- Add --apple_compiler and --apple_grte_top options.
- C++, runfiles in cc_test: the C++ runfiles library (
@bazel_tools//tools/cpp/runfiles) can now create Runfiles objects for tests. See //tools/cpp/runfiles/runfiles_src.h (in the Bazel source tree) for documentation.
- There is now a 'same_pkg_direct_rdeps' query function. See the query documentation for more details.
Important changes:
- A new, experimental, options --experimental_ui_deduplicate was added that makes the UI try to deduplicate messages from actions to keep the output on the console cleaner.
- Add ExecutionInfo to aquery output for ExecutionInfoSpecifier actions.
- The Android resource processing pipeline now supports persistence via worker processes. Enable it with
--persistent_android_resource_processor. We have observed 1.5x faster clean local builds, and up to 2.5x faster incremental local builds.
- --windows_exe_launcher is deprecated, this flag will be removed soon. Please make sure you are not using it.
- CppRules: cc_binary link action no longer hardcodes -static-libgcc for toolchains that support embedded runtimes (guarded by --experimental_dont_emit_static_libgcc temporarily).
- When computing --instrumentation_filter, end filter patterns with "[/:]" to match non-top-level packages exactly and treat top-level targets consistently.
- Note
- The startup flag --host_javabase has been renamed to --server_javabase to avoid confusion with the build flag --host_javabase.
- objc_library now supports the module_name attribute
- Added "bazel info server_log" command to obtain the main Bazel server log file path, which can be quite useful for debugging Bazel issues.
- Support fileset expansion in ctx.actions.args(). Controlled by --incompatible_expand_directories.
- Fixes aapt shrink resources not respecting filters configurations
- --javacopt= no longer affects compilations of tools that are executed during the build; use --host_javacopt= to change javac flags in the host configuration.
- Revert the default of --incompatible_package_name_is_a_function to false.
- Future versions of Bazel will require a locally installed JDK for Java development. Previously Bazel would fall back to using the embedded --server_javabase if no JDK as available. Pass --incompatible_never_use_embedded_jdk_for_javabase to disable the legacy behaviour.
- Revise --server_javabase in documentation.
- Bazel will now check stderr instead of stdout to decide if it is outputting to a terminal. "--isatty" is deprecated, use "--is_stderr_atty" instead.
- LcovMerger was renamed to CoverageOutputGenerator.
- Propagating remote errors to the user even if --verbose_failures=false
- Add number of configured targets to analysis phase status output.
- Faster coverage collection for gcc compiled C++ code can now be tested by enabling it with --experimental_cc_coverage.
- If the --javabase flag is unset, it Bazel locates a JDK using the JAVA_HOME environment variable and searching the PATH. If no JDK is found --javabase will be empty, and builds targeting Java will not be supported. Previously Bazel would fall back to using the embedded JDK as a --javabase, but this is no longer default behaviour. A JDK should be explicitly installed instead to enable Java development.
- Fix regression #6219, remote cache failures
- The flag "--experimental_enable_cc_configuration_make_variables" is removed, use "--incompatible_disable_cc_configuration_make_variables" instead.
- Added
--incompatible_disable_legacy_flags_cc_toolchain_api to deprecate legacy cc_toolchain Skylark API for legacy CROSSTOOL fields.
- Fixed missing debug symbols when building native code with
--compilation_mode=dbg that target Android ARM architectures by adding the -g flag.
- --loading_phase_threads now defaults to "auto" (not 200, as was previously the case), which at the moment corresponds to the number of CPUs. If your sources are on a slow file system, increasing this value may yield better analysis-time performance when disk caches are cold.
Notice: Bazel installers contain binaries licensed under the GPLv2 with Classpath exception. Those installers should always be redistributed along with the source code.
Some versions of Bazel contain a bundled version of OpenJDK. The license of the bundled OpenJDK and other open-source components can be displayed by running the command bazel license. The vendor and version information of the bundled OpenJDK can be displayed by running the command bazel info java-runtime. The binaries and source-code of the bundled OpenJDK can be downloaded from our mirror server.
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Index of files