tree 9e6abac0bb3bda4378ff1a6faa13e447f447d79d
parent da325126208fcf34a05d5d041c7390726822b8cf
author Bazel Release System <noreply@google.com> 1560776250 +0200
committer Laurent Le Brun <laurentlb@gmail.com> 1560776250 +0200

Release 0.27.0 (2019-06-17)

Baseline: 5935259724bebd1c4bdebc90e159d0f655c8c219

Cherry picks:

   + fe81b49e727efdcc90a270520af193af75f4e31d:
     Support of using the absolute path profile for LLVM's Context
     Sensitive FDO
   + ce5e7180d98e1244fdfba0349952727826cbd173:
     Demote OptionProcessor from globals
   + 3ed9d3681c3e130aafcf3c405ff1795c601bdf95:
     Properly wire up BES half-close. The lack thereof was a simple
     oversight.
   + 4ca768e9f87701fb92598d0a8325a5fc8881a852:
     standardize graph output indentation with 2 spaces
   + aff189a7c514a0171a53a2dcdd37c93ecaa672ad:
     Make sure default Linux artifacts have an associated action,
     even when artifact names are altered.
   + 8c3b3fba3f68833bd97d3df2db9c48f0539efc3b:
     Failures early in package loading will now fail all --keep_going
     builds.
   + 123c68daed17b19927372e4df7f7a2256db6b80e:
     Warn in more cases of possible Python version mismatch in host
     config
   + 052167e907373ac7ea43238c3049739f6e94a9d1:
     Add a non-strict autodetecting Python toolchain
   + 6ef6d879ab69225d54ecab3db847fb4eff33bbeb:
     Default java toolchain target
   + 50fa3ec27efdd95771c70faa38a4543d4fed44f2:
     Fix problems with the non-strict Python toolchain
   + e2a626c4f61fe4ceb79a5675d09a6f25ca7b5b22:
     Automated rollback of commit
     bc6f7cb330bb531f062bb301f3703876051191f5.
   + 6efc5b787ad3164cc2fb779c73377695032b4524:
     Treat existence of managed directories as a part of repository
     dirtiness.
   + 3a4be3c93813987a27a97dade3f9ebbc5770e349:
     Add /usr/local/bin to default PATH under strict action env
   + 5c1005c0947b010ee36ca851b8ba07c9479cf682:
     Automated rollback of commit
     536a166270590a8dbc701718550383f3a07cc763.

Incompatible changes:

  - --incompatible_disable_objc_provider_resources no longer has
    effect. Use of deprecated resource fields on the Objc provider is
    now disallowed regardless of this flag.
  - deleted deprecated --experimental-remote-retry* flags, please use
    --remote_retries instead
  - flipped --incompatible_list_based_execution_strategy_selection
    flag to be true by default. See
    https://github.com/bazelbuild/bazel/issues/7480 for details.
  - Octal integer literals in Starlark are required to start with
    "Oo".
  - The "native" module is no longer available in BUILD files, all
    its members can be accessed directly as global symbols. This can
    be temporarily reverted by providing
    --incompatible_disallow_native_in_build_file=false as a flag to
    Blaze.
  - The "native" module is no longer available in BUILD files, all
    its members can be accessed directly as global symbols. This can
    be temporarily reverted by providing
    --incompatible_disallow_native_in_build_file=false as a flag to
    Blaze.
  - Turn off binary style profile format.
  - The "native" module is no longer available in BUILD files, all
    its members can be accessed directly as global symbols. This can
    be temporarily reverted by providing
    --incompatible_disallow_native_in_build_f...
  - cleanup that affects user provided apple frameworks is
    now enabled by default.  See
    https://github.com/bazelbuild/bazel/issues/7944 for more info.
  - Python rules now determine the Python runtime using toolchains
    rather than `--python_top` and `--python_path`, which are
    deprecated. See
    [#7899](https://github.com/bazelbuild/bazel/issues/7899) for
    information on declaring Python toolchains and migrating your
    code. As a side-benefit, this addresses
    [#4815](https://github.com/bazelbuild/bazel/issues/4815)
    (incorrect interpreter version used) on non-Windows platforms.
    Note however that some builds break due to getting the version
    they asked for -- consider setting `python_version = "PY2"` on
    Python 2 targets and `--host_force_python=PY2` if any Python 2
    targets are used in the host configuration. You can temporarily
    opt out of this change with
    `--incompatible_use_python_toolchains=false`.
  - Depsets can't be iterated over unless they're converted to lists
    using the .to_list() method. Use
    --incompatible_depset_is_not_iterable=false to
    temporarily restore the previous behaviour.

New features:

  - Bash, runfiles: the copy-pasted init code of the Bash runfiles
    library is now shorter, see `tools/bash/runfiles/runfiles.bash`.
    The rlocation() implementation is the same.
  - Bash, runfiles: the copy-pasted init code of the Bash runfiles
    library is now shorter, see `tools/bash/runfiles/runfiles.bash`.
    The rlocation() implementation is the same.
  - Bash, runfiles: the copy-pasted init code of the Bash runfiles
    library is now shorter, see `tools/bash/runfiles/runfiles.bash`.
    To use the new init code, you need Bazel 0.27 or newer. The old
    (longer) init code still works.

Important changes:

  - 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.
  - The --incompatible_disable_objc_library_resources flag is being
    removed. Please remove it from your configs as it otherwise will
    fail the build.
  - Add a generic additional_linker_inputs attribute on cc_binary
    rules.
  - Windows, C++ autoconfigure: BAZEL_VC and BAZEL_VS may now have
    quotes, so if you set these envvars' values in cmd.exe via
    TAB-completion then you no longer need to remove the surrounding
    quotes.
  - pkg_deb has new attributes: `config` and `templates` that can be
    used for integration with debconf
  - Allow cc_import() of a DLL with no interface library on Windows,
    used to document runtime dependencies.
  - All host-configured Python tools that are built for the wrong
    Python version will now emit a warning message when they exit
    with non-zero status. See #7899.
  - deprecated --remote_local_fallback_strategy. Use
    `--strategy=remote,local` instead. See
    https://github.com/bazelbuild/bazel/issues/7480.
  - Introduce --incompatible_disable_native_android_rules flag
  - The Android desugaring actions now support a persistent worker
    mode for faster local build performance. Enable it with
    `--strategy=Desugar=worker`.
  - --incompatible_static_name_resolution_in_build_files is now
    enabled by default
  - --incompatible_disable_deprecated_attr_params is now enabled by
    default (#5818)
  - Repository containing autoconfigured C++ toolchain
    `@local_config_cc` has been split in 2 - see
    `local_config_cc_toolchains`.
  - --incompatible_string_join_requires_strings is now enabled by
    default
  - Flag --incompatible_new_actions_api is enabled by dewfault (#5825)
  - New flag `--incompatible_disallow_empty_glob`. See
    https://github.com/bazelbuild/bazel/issues/8195
  - --incompatible_no_kwargs_in_build_files is enabled by default
  - Incompatible flag
    `--incompatible_require_ctx_in_configure_features` has been
    flipped. See https://github.com/bazelbuild/bazel/issues/7793 for
    more information.
  - `BAZEL_USE_XCODE_TOOLCHAIN=1` tells Bazel not to look for Xcode to
    decide whether to enable toolchains for Apple rules, but to
    assume Xcode is
    available. Can be also used when building on Darwin and no C++ or
    ObjC is being
    built, so there is no need to detect Xcode.
  - Android desugaring actions now use persistent workers by default.
    This has been measured to provide up to 20% reduction in build
    times. To disable it, use the `--strategy=Desugar=sandboxed`
    flag. See https://github.com/bazelbuild/bazel/issues/8342 and
    https://github.com/bazelbuild/bazel/issues/8427 for more details
    on local build speed optimization for Android apps.
  - Fixed an issue with Android builds where `--fat_apk_cpu` doesn't
    pack all selected shared libraries from `aar_import` targets into
    the APK. See
    [#8283](https://github.com/bazelbuild/bazel/issues/8283).
  - Turn on --experimental_starlark_config_transitions by default for
    starlark transitions (see
    https://docs.bazel.build/versions/master/skylark/config.html#user-
    defined-transitions for more info)
  - Turn on --experimental_build_setting_api by default for starlark
    build settings (see
    https://docs.bazel.build/versions/master/skylark/config.html#user-
    defined-build-settings for more info)
  - Incompatible flag
    `--incompatible_dont_enable_host_nonhost_crosstool_features` has
    been flipped. See https://github.com/bazelbuild/bazel/issues/7407
    for more information.
  - Added support for Android NDK 19 and 20.
  - Flip --incompatible_no_support_tools_in_action_inputs
  - --remote_executor, --remote_cache or --bes_backend=someurl.com
    would be treated as grpcs://someurl.com, if the
    --incompatible_tls_enabled_removed flag enabled. See
    https://github.com/bazelbuild/bazel/issues/8061 for details.
  - Add new options --cs_fdo_absolute_path= to support the absolute
    path
    profile for LLVM's context-sensitive FDO.
  - When `--incompatible_strict_action_env` is enabled, the default
    `PATH` now includes `/usr/local/bin`.
  - Turn on --experimental_build_setting_api by default for starlark
    build settings (see
    https://docs.bazel.build/versions/master/skylark/config.html#user-
    defined-build-settings for more info)

This release contains contributions from many people at Google, as well as Alex Thompson, Andy Scott, Benjamin Peterson, David McNett, Drew Gassaway, Ira Shikhman, James deBoer, Jay Vercellone, Jingwen Chen, Josh Rosen, Keith Smiley, Laurent Le Brun, Lee Mracek, Marwan Tammam, Matt Passell, Michael Hackner, Michal Majcherski, Patrick Niklaus, Peter Mounce, Ricky Pai, Steeve Morin, szakmary, Takuto Ikuta, Vladimir Chebotarev, Yen-Chi Chen.