blob: d48332d63aa30596a56c01451fa6d6e14747baf8 [file] [log] [blame] [edit]
# DO NOT MODIFY THIS FILE IF YOU WANT CHANGES TO YOUR PERSONAL CONFIGURATION.
# INSTEAD, MODIFY ONE OF THE FOLLOWING CONFIGURATION FILES DEPENDING ON WHICH
# CHECKOUTS YOU WANT TO AFFECT:
# If you're not sure what you want, you probably want option 2. See bazel/bazelrcs/example_chromiumos.bazelrc for an example
# Option 1) All bazel projects: $HOME/.bazelrc
# Option 2) All bazel chromiumos projects: $HOME/.chromiumos.bazelrc
# Option 3) This specific chromiumos checkoput: src/workspace.bazelrc
# Bzlmod is the new dependency management system in bazel.
common --experimental_enable_bzlmod
# TODO(b/274698330): In the long term, we'll want to replace this with a GoB
# mirror of the BCR.
common --registry=https://bcr.bazel.build
# TODO(b/274698330): In the long term, we'll want to replace this with a
# GoB repo containing all bazel modules used throughout google. This shouldn't
# be ChromeOS specific.
common --registry=https://raw.githubusercontent.com/matts1/bazel-central-registry/main
# Enable the use of RBE remote caching if the appropriate config is selected.
import %workspace%/bazel/bazelrcs/remote_build_artifacts.bazelrc
# Always show output from actions.
common --experimental_ui_max_stdouterr_bytes=-1
# Prevent writing to the remote cache if source files change during the build.
# **DISABLED** Only useful when uploading artifacts from local builds, which we
# won't do once we have Bazel running in CI builds, and it prevents uploading
# artifacts to the remote cache due to actions Bazel takes (see
# https://github.com/bazelbuild/bazel/issues/17162). So we don't need it, and
# it gets in the way, so we've decided not to use it after all. In 6.x, we could
# just comment it out, but it's going to become the default in a later version
# so we use the inverse version to protect us against that future change.
#build --experimental_guard_against_concurrent_changes
#query --experimental_guard_against_concurrent_changes
build --noexperimental_guard_against_concurrent_changes
query --noexperimental_guard_against_concurrent_changes
# Aspect-Recommended bazel flags for all projects
# Docs for these flags: https://bazel.build/reference/command-line-reference
# Accompanies this blog post: https://blog.aspect.dev/bazelrc-flags
###
# Performance fixes
###
# Consider --experimental_remote_merkle_tree_cache_size as well
build --experimental_remote_merkle_tree_cache
query --experimental_remote_merkle_tree_cache
# Note: The noexperimental_check_external_repository_files flag requires Bazel 6
build --noexperimental_check_output_files --noexperimental_check_external_repository_files
fetch --noexperimental_check_output_files --noexperimental_check_external_repository_files
query --noexperimental_check_output_files --noexperimental_check_external_repository_files
# Observed to speed up an Angular build from 7.5min to 5min
build --experimental_reuse_sandbox_directories
# Improve remote cache hit rate
build --nostamp
# Minimize remote cache downloads
build --remote_download_toplevel
# Avoid waiting on 'Waiting for build events upload: Build Event Service'
build --bes_upload_mode=fully_async
###
# Correctness guarantees
###
# We disable this for ChromeOS because it throws errors along the lines of
# "Infinite symlink chain detected".
# startup --host_jvm_args=-DBAZEL_TRACK_SOURCE_DIRECTORIES=1
build --sandbox_default_allow_network=false
test --incompatible_exclusive_test_sandboxed
build --incompatible_strict_action_env
build --nolegacy_external_runfiles
build --incompatible_remote_results_ignore_disk
build --incompatible_default_to_explicit_init_py
build --incompatible_allow_tags_propagation
fetch --incompatible_allow_tags_propagation
query --incompatible_allow_tags_propagation
# See github.com/bazelbuild/rules_python/issues/1059
# Without this, packages installed to $HOME/.local/lib/python3.10/site-packages
# can be imported from bazel's python.
build --action_env=PYTHONNOUSERSITE=1
build --action_env=RUST_BACKTRACE=1
# Allows actions to detect that they're running as a bazel action rather than as
# a binary directly (eg. bazel run / test).
build --action_env=IS_BAZEL_ACTION=1
# These are symlinked elsewhere.
build --deleted_packages=bazel/workspace_root
query --deleted_packages=bazel/workspace_root
### Toolchain resolution.
build --host_platform=//bazel/platforms:host
# Use platforms instead of crostool_top to resolve C++ toolchains.
build --incompatible_enable_cc_toolchain_resolution
###
# Convenience
###
build --remote_local_fallback
build --heap_dump_on_oom
test --test_verbose_timeout_warnings
build --experimental_remote_build_event_upload=minimal
# Import project-shared configs.
import %workspace%/bazel/bazelrcs/prebuilts.bazelrc
# Allow user-specific overrides for this repository.
# Should be at the end of this file so that users can override anything above.
try-import %workspace%/workspace.bazelrc
# Run linters at build time.
build:lint --config=clippy
build:clippy --aspects=@rules_rust//rust:defs.bzl%rust_clippy_aspect --output_groups=+clippy_checks
# Add a config to run formatter validation at build time.
# It’s recommended to only enable this config in CI so formatting issues do not
# impact user’s ability to rapidly iterate on changes.
# Because aspects can't modify source files, we may want to investigate having
# them output some kind of diff, so we can then just apply the diff after.
# It's also recommended to run this config in combination with --keep_going,
# otherwise it can only give you formatting errors for a single file.
build:format --config=rustfmt
# Bzlmod doesn't yet have a way of defining a rustfmt toolchain.
# Once it does, swap out this line for the one below.
build:rustfmt --
# build:rustfmt --aspects=@rules_rust//rust:defs.bzl%rustfmt_aspect --output_groups=+rustfmt_checks
# When building rust, also add rustc output formatted as json to the bazel
# outputs, so that it can be picked up by rust-analyzer.
# This isn't needed by CQ - only by local builds, but the cost is negligible.
build --@rules_rust//:output_diagnostics=true --output_groups=+rust_lib_rustc_output,+rust_metadata_rustc_output
# This will be removed when it becomes the default.
build:hermetic_toolchains --config=hermetic_cc --config=hermetic_rust
build:hermetic_cc --//bazel/module_extensions/toolchains/cc:hermetic
build:hermetic_rust --//bazel/module_extensions/toolchains/rust:hermetic
build:nohermetic_toolchains --config=nohermetic_cc --config=nohermetic_rust
build:nohermetic_cc --no//bazel/module_extensions/toolchains/cc:hermetic
build:nohermetic_rust --no//bazel/module_extensions/toolchains/rust:hermetic
build --config=nohermetic_toolchains
# Enable printing artifact hashes + verifying ebuilds
build --aspects //bazel/portage/build_defs:hash_tracer.bzl%hash_tracer,//bazel/portage/build_defs:hash_tracer.bzl%hash_tracer_validator