Release 0.26.0rc8 (2019-05-13)
Baseline: c2001a4569483596d9dc74ba9cabcbe4b6f1887f
Cherry picks:
- e67c961905792cd63950c6f6efc33275ad243c49: Fix a non-determinism in create_embedded_tools.py.
- 81aefe7ee01cc73646a53f9c72ed40ead09f9f5a: Remove unsupported cpu attribute from cc_toolchains.
- 597e289b097d3bfed8eea1cb0924bbeb04877e42: remote: made CombinedCache a composition of Disk and Http Cache
- 942f7cf6a0da0a4ecc804615424f039e50963933: C++: Fixes bug in C++ API with external repo aspects
- 85a5a2bd569a5274950fc7327a044c395248c024: Configure @androidsdk//:emulator_x86 and :emulator_arm to point to the unified emulator binary
- 9835cb4135503768cdf1161746b95d7969ccb938: Automated rollback of commit 844e4e297b404d6ff28b818d8150d4b9c47de887.
- c963ba21073b514961946b8b4b45b091f08fdaa1: Windows, Python: fix arg. esc. also in host config
Incompatible changes:
- Flip --incompatible_windows_escape_jvm_flags to true. See https://github.com/bazelbuild/bazel/issues/7486
- Flip --incompatible_windows_style_arg_escaping to true. See https://github.com/bazelbuild/bazel/issues/7454
- --incompatible_windows_escape_jvm_flags is enabled by default, and the flag no longer exists
--incompatible_no_output_attr_default
is enabled by default.
- --incompatible_depset_union is enabled by default.
- Python rules now determine the Python runtime using toolchains rather than
--python_top
and --python_path
, which are deprecated. See #7899 for information on declaring Python toolchains and migrating your code. As a side-benefit, this addresses #4815 (incorrect interpreter version used) on non-Windows platforms. You can temporarily opt out of this change with --incompatible_use_python_toolchains=false
.
- Python rules now determine the Python runtime using toolchains rather than
--python_top
and --python_path
, which are deprecated. See #7899 for information on declaring Python toolchains and migrating your code. As a side-benefit, this addresses #4815 (incorrect interpreter version used) on non-Windows platforms. You can temporarily opt out of this change with --incompatible_use_python_toolchains=false
.
New features:
- Windows, Python: the --incompatible_windows_escape_python_args flag (false by default) builds py_binary and py_test targets with correct command line argument escaping.
- cquery supports --output=build
Important changes:
- Allow debugging C++ features logic.
- The --ios_multi_cpus, --watchos_cpus, --macos_cpus and tvos_cpus are now additive. This means that you can now split the --ios_multi_cpus=arm64,armv7 into --ios_multi_cpus=arm64 and --ios_multi_cpus=armv7.
- Generated Go protobufs now depend on //net/proto2/go:proto_gendeps instead of //net/proto2/go:proto
- Add new options --cs_fdo_instrument and --cs_profile to support LLVM's context-sensitive FDO (CSFDO).
- Bazel C++ compile/link Starlark API. Can be used with experimental flag --experimental_cc_skylark_api_enabled_packages=,.
cc_toolchain.static_runtime_lib
and cc_toolchain.dynamic_runtime_lib
are now exposed to Starlark.
- New flag
--incompatible_no_kwargs_in_build_files
. See https://github.com/bazelbuild/bazel/issues/8021
- struct.to_proto() converts dict into proto3 text message (map<,>).
- Android resource conflicts will no longer be reported between a strong attr resource and a weak attr resource, if the weak attr does not have format specified.
- Flag
--incompatible_static_name_resolution_in_build_files
is added. See https://github.com/bazelbuild/bazel/issues/8022
- Add --incompatible_objc_framework_cleanup to control whether to enable some objc framework cleanup that changes the API. Specifically, the cleanup changes the objc provider API pertaining to frameworks. This change is expected to be transparent to most users unless they write their own Starlark rules to handle frameworks. See https://github.com/bazelbuild/bazel/issues/7594 for details.
- Added --incompatible_remove_binary_profile to disable the old binary profiles. Instead use the JSON profile format: https://docs.bazel.build/versions/master/skylark/performance.html# json-profile
- Introducing --execution_log_binary_file and --execution_log_json_file that output a stable sorted execution log. They will offer a stable replacement to --experimental_execution_log_file.
- Flag
--incompatible_disallow_old_octal_notation
is added. See //github.com/bazelbuild/bazel/issues/8059
- Removes the --incompatible_disable_genrule_cc_toolchain_dependency flag.
- Android resource conflicts will no longer be reported between a strong attr resource and a weak attr resource, if the weak attr does not have format specified.
- Incompatible flag
--incompatible_make_thinlto_command_lines_standalone
has been added. See https://github.com/bazelbuild/bazel/issues/6791 for details.
- objc_library does not support resource attributes any more. Please read #7594 for more info.
- The
outputs
parameter of the rule()
function is deprecated and attached to flag --incompatible_no_rule_outputs_param
. Migrate rules to use OutputGroupInfo
or attr.output
instead. See https://github.com/bazelbuild/bazel/issues/7977 for more info.
- New platform_mappings ability to allow gradual flag to platforms/toolchains migration. See also https://github.com/bazelbuild/bazel/issues/6426
- Added support for compiling against fully qualified R classes from aar_import dependencies.
- --tls_enabled flag is deprecated. Please provide 'grpcs' as a scheme in the URLs if TLS should be used for a remote connection.
- Adds incompatible_disallow_rule_execution_platform_constraints_allowed, which disallows the use of the "execution_platform_constraints_allowed" attribute when defining new rules.
- Flag
--incompatible_restrict_named_params
is added. See https://github.com/bazelbuild/bazel/issues/8147 for details.
- The glob function has a new argument
allow_empty
. When set to False, the glob fails when it doesn't match anything.
- Adds the "disable_whole_archive_for_static_lib" feature to allow turning off legacy_whole_archive for individual targets.
- C++ Starlark API for compilation and linking is no longer whitelisted
- Update visibility advice in build-style
- --incompatible_disable_objc_provider_resources is now enabled by default.
- Fixed an issue where some
py_runtime
s were incompatible with using --build_python_zip
(#5104).
- The
outputs
parameter of the rule()
function is deprecated and attached to flag --incompatible_no_rule_outputs_param
. Migrate rules to use OutputGroupInfo
or attr.output
instead. See https://github.com/bazelbuild/bazel/issues/7977 for more info.
This release contains contributions from many people at Google, as well as Benjamin Peterson, Brian Topping, clyang82, Dave Lee, George Gensure, Greg Estren, Greg, Guro Bokum, Keith Smiley, Max Vorobev, Michael Hackner, Robert Brown, Robert Sayre, Ryan Beasley, Yannic.
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