Dump action cache content.

Specifies the set of environment variables available to actions with target configuration. Variables can be either specified by name, in which case the value will be taken from the invocation environment, or by the name=value pair which sets the value independent of the invocation environment. This option can be used multiple times; for options given for the same variable, the latest wins, options for different variables accumulate.

adb binary to use for the 'mobile-install' command. If unspecified, the one in the Android SDK specified by the --android_sdk_channel command line option (or the default SDK if --android_sdk_channel is not specified) is used.

Extra arguments to pass to adb. Usually used to designate a device to install to.

Fetches all external repositories necessary for building any target or repository. This is the default if no other flags and arguments are provided. Only works when --enable_bzlmod is on.

If discarding the analysis cache due to a change in the build system, setting this option to false will cause bazel to exit, rather than continuing with the build. This option has no effect when 'discard_analysis_cache' is also set.

If true, an analysis failure of a rule target results in the target's propagation of an instance of AnalysisFailureInfo containing the error description, instead of resulting in a build failure.

Specified the module versions in the form of `<module1>@<version1>, <module2>@<version2>` that will be allowed in the resolved dependency graph even if they are declared yanked in the registry where they come from (if they are not coming from a NonRegistryOverride). Otherwise, yanked versions will cause the resolution to fail. You can also define allowed yanked version with the `BZLMOD_ALLOW_YANKED_VERSIONS` environment variable. You can disable this check by using the keyword 'all' (not recommended).

Allowed values for the --cpu flag.

Sets the maximum number of transitive dependencies through a rule attribute with a for_analysis_testing configuration transition. Exceeding this limit will result in a rule error.

The Android target compiler.

Generate AndroidX-compatible data-binding files. This is only used with databinding v2. This flag is a no-op.

Use android databinding v2 with 3.4.0 argument. This flag is a no-op.

Determines whether C++ deps of Android rules will be linked dynamically when a cc_binary does not explicitly create a shared library. 'default' means bazel will choose whether to link dynamically. 'fully' means all libraries will be linked dynamically. 'off' means that all libraries will be linked in mostly static mode.

Selects the manifest merger to use for android_binary rules. Flag to help thetransition to the Android manifest merger from the legacy merger.

Sets the order of manifests passed to the manifest merger for Android binaries. ALPHABETICAL means manifests are sorted by path relative to the execroot. ALPHABETICAL_BY_CONFIGURATION means manifests are sorted by paths relative to the configuration directory within the output directory. DEPENDENCY means manifests are ordered with each library's manifest coming before the manifests of its dependencies.

Sets the platforms that android_binary targets use. If multiple platforms are specified, then the binary is a fat APKs, which contains native binaries for each specified target platform.

Enables resource shrinking for android_binary APKs that use ProGuard.

Whether to announce rc options.

Implementation to use to sign APKs

The label of the crosstool package to be used in Apple and Objc rules and their dependencies.

Whether to generate debug symbol(.dSYM) file(s).

How to resolve aspect dependencies when the output format is one of {xml, proto,record}. 'off' means no aspect dependencies are resolved, 'conservative' (the default) means all declared aspect dependencies are added regardless of whether they are given the rule class of direct dependencies, 'precise' means that only those aspects are added that are possibly active given the rule class of the direct dependencies. Note that precise mode requires loading other packages to evaluate a single target thus making it slower than the other modes. Also note that even precise mode is not completely precise: the decision whether to compute an aspect is decided in the analysis phase, which is not run during 'bazel query'.

Comma-separated list of aspects to be applied to top-level targets. In the list, if aspect some_aspect specifies required aspect providers via required_aspect_providers, some_aspect will run after every aspect that was mentioned before it in the aspects list whose advertised providers satisfy some_aspect required aspect providers. Moreover, some_aspect will run after all its required aspects specified by requires attribute. some_aspect will then have access to the values of those aspects' providers. <bzl-file-label>%<aspect_name>, for example '//tools:my_def.bzl%my_aspect', where 'my_aspect' is a top-level value from a file tools/my_def.bzl

Specifies the values of the command-line aspects parameters. Each parameter value is specified via <param_name>=<param_value>, for example 'my_param=my_val' where 'my_param' is a parameter of some aspect in -- aspects list or required by an aspect in the list. This option can be used multiple times. However, it is not allowed to assign values to the same parameter more than once.

If true, output cleaning is asynchronous. When this command completes, it will be safe to execute new commands in the same client, even though the deletion may continue in the background.

When printing the location part of messages, attempt to use a path relative to the workspace directory or one of the directories specified by -- package_path.

No-op

If --output_filter is not specified, then the value for this option is used create a filter automatically. Allowed values are 'none' (filter nothing / show everything), 'all' (filter everything / show nothing), 'packages' (include output from rules in packages mentioned on the Blaze command line), and 'subpackages' (like 'packages', but also include subpackages). For the 'packages' and 'subpackages' values //java/foo and //javatests/foo are treated as one package)'.

When --noautodetect_server_javabase is passed, Bazel does not fall back to the local JDK for running the bazel server and instead exits.

Specify a module relative to which the specified target repos will be interpreted.

If set, Bazel will be run as just a client process without a server, instead of in the standard client/server mode. This is deprecated and will be removed, please prefer shutting down the server explicitly if you wish to avoid lingering servers.

Only on Linux; use 'batch' CPU scheduling for Blaze. This policy is useful for workloads that are non-interactive, but do not want to lower their nice value. See 'man 2 sched_setscheduler'. If false, then Bazel does not perform a system call.

The location of the user .bazelrc file containing default values of Bazel options. /dev/null indicates that all further `--bazelrc`s will be ignored, which is useful to disable the search for a user rc file, e.g. in release builds. This option can also be specified multiple times. E.g. with `--bazelrc=x.rc --bazelrc=y.rc --bazelrc=/dev/null --bazelrc=z. rc`, 1) x.rc and y.rc are read. 2) z.rc is ignored due to the prior /dev/null. If unspecified, Bazel uses the first .bazelrc file it finds in the following two locations: the workspace directory, then the user's home directory. Note: command line options will always supersede any option in bazelrc.

Maximum number of open files allowed during BEP artifact upload.

Specifies the build event service (BES) backend endpoint in the form [SCHEME://]HOST[:PORT]. The default is to disable BES uploads. Supported schemes are grpc and grpcs (grpc with TLS enabled). If no scheme is provided, Bazel assumes grpcs.

Sets the field check_preceding_lifecycle_events_present on PublishBuildToolEventStreamRequest which tells BES to check whether it previously received InvocationAttemptStarted and BuildEnqueued events matching the current tool event.

Specify a header in NAME=VALUE form that will be included in BES requests. Multiple headers can be passed by specifying the flag multiple times. Multiple values for the same name will be converted to a comma-separated list.

Specifies the instance name under which the BES will persist uploaded BEP. Defaults to null.

Specifies a list of notification keywords to be added the default set of keywords published to BES ("command_name=<command_name> ", "protocol_name=BEP"). Defaults to none.

Specifies whether to publish BES lifecycle events. (defaults to 'true').

Specifies how long bazel should wait for the BES/BEP upload to complete while OOMing. This flag ensures termination when the JVM is severely GC thrashing and cannot make progress on any user thread.

Specifies the maximal size of stdout or stderr to be buffered in BEP, before it is reported as a progress event. Individual writes are still reported in a single event, even if larger than the specified value up to -- bes_outerr_chunk_size.

Specifies the maximal size of stdout or stderr to be sent to BEP in a single message.

Connect to the Build Event Service through a proxy. Currently this flag can only be used to configure a Unix domain socket (unix:/path/to/socket).

Specifies the base URL where a user can view the information streamed to the BES backend. Bazel will output the URL appended by the invocation id to the terminal.

Specifies a list of notification keywords to be included directly, without the "user_keyword=" prefix included for keywords supplied via -- bes_keywords. Intended for Build service operators that set -- bes_lifecycle_events=false and include keywords when calling PublishLifecycleEvent. Build service operators using this flag should prevent users from overriding the flag value.

Specifies how long bazel should wait for the BES/BEP upload to complete after the build and tests have finished. A valid timeout is a natural number followed by a unit: Days (d), hours (h), minutes (m), seconds (s), and milliseconds (ms). The default value is '0' which means that there is no timeout.

Specifies whether the Build Event Service upload should block the build completion or should end the invocation immediately and finish the upload in the background. Either 'wait_for_upload_complete' (default), 'nowait_for_upload_complete', or 'fully_async'.

When --noblock_for_lock is passed, Bazel does not wait for a running command to complete, but instead exits immediately.

If true dex2oat action failures will cause the build to break instead of executing dex2oat during test runtime.

Execute the build; this is the usual behaviour. Specifying --nobuild causes the build to stop before executing the build actions, returning zero iff the package loading and analysis phases completed successfully; this mode is useful for testing those phases.

If non-empty, write a varint delimited binary representation of representation of the build event protocol to that file. This option implies --bes_upload_mode=wait_for_upload_complete.

Convert paths in the binary file representation of the build event protocol to more globally valid URIs whenever possible; if disabled, the file:// uri scheme will always be used

Specifies whether the Build Event Service upload for -- build_event_binary_file should block the build completion or should end the invocation immediately and finish the upload in the background. Either 'wait_for_upload_complete' (default), 'nowait_for_upload_complete', or 'fully_async'.

If non-empty, write a JSON serialisation of the build event protocol to that file. This option implies --bes_upload_mode=wait_for_upload_complete.

Convert paths in the json file representation of the build event protocol to more globally valid URIs whenever possible; if disabled, the file:// uri scheme will always be used

Specifies whether the Build Event Service upload for -- build_event_json_file should block the build completion or should end the invocation immediately and finish the upload in the background. Either 'wait_for_upload_complete' (default), 'nowait_for_upload_complete', or 'fully_async'.

The maximum number of entries for a single named_set_of_files event; values smaller than 2 are ignored and no event splitting is performed. This is intended for limiting the maximum event size in the build event protocol, although it does not directly control event size. The total event size is a function of the structure of the set as well as the file and uri lengths, which may in turn depend on the hash function.

Whether all actions should be published.

If non-empty, write a textual representation of the build event protocol to that file

Convert paths in the text file representation of the build event protocol to more globally valid URIs whenever possible; if disabled, the file:// uri scheme will always be used

Specifies whether the Build Event Service upload for -- build_event_text_file should block the build completion or should end the invocation immediately and finish the upload in the background. Either 'wait_for_upload_complete' (default), 'nowait_for_upload_complete', or 'fully_async'.

The maximum number of times Bazel should retry uploading a build event.

Forces test targets tagged 'manual' to be built. 'manual' tests are excluded from processing. This option forces them to be built (but not executed).

Custom key-value string pairs to supply in a build event.

Build python executable zip; on on Windows, off on other platforms

If true, build runfiles symlink forests for all targets. If false, write them only when required by a local action, test or run command.

If true, write runfiles manifests for all targets. If false, omit them. Local tests will fail to run when false.

Specifies a comma-separated list of tags. Each tag can be optionally preceded with '-' to specify excluded tags. Only those targets will be built that contain at least one included tag and do not contain any excluded tags. This option does not affect the set of tests executed with the 'test' command; those are be governed by the test filtering options, for example '--test_tag_filters'

If enabled, when building C++ tests statically and with fission the .dwp file for the test binary will be automatically built as well.

If specified, only *_test and test_suite rules will be built and other targets specified on the command line will be ignored. By default everything that was requested will be built.

If greater than 0, configures Bazel to cache file digests in memory based on their metadata instead of recomputing the digests from disk every time they are needed. Setting this to 0 ensures correctness because not all file changes can be noted from file metadata. When not 0, the number indicates the size of the cache as the number of file digests to be cached.

If set to 'auto', Bazel reruns a test if and only if: (1) Bazel detects changes in the test or its dependencies, (2) the test is marked as external, (3) multiple test runs were requested with --runs_per_test, or(4) the test previously failed. If set to 'yes', Bazel caches all test results except for tests marked as external. If set to 'no', Bazel does not cache any test results.

Output the canonical policy, after expansion and filtering. To keep the output clean, the canonicalized command arguments will NOT be shown when this option is set to true. Note that the command specified by -- for_command affects the filtered policy, and if none is specified, the default command is 'build'.

Comma-separated list of architectures for which to build Apple Catalyst binaries.

Specifies a suffix to be added to the configuration directory.

Sets the suffixes of header files that a cc_proto_library creates.

Sets the suffixes of source files that a cc_proto_library creates.

Chooses the character set to use for the tree. Only affects text output. Valid values are "utf8" or "ascii". Default is "utf8"

Check bazel version compatibility of Bazel modules. Valid values are `error` to escalate it to a resolution failure, `off` to disable the check, or `warning` to print a warning when mismatch detected.

If disabled, .bzl load visibility errors are demoted to warnings.

Check if the direct `bazel_dep` dependencies declared in the root module are the same versions you get in the resolved dependency graph. Valid values are `off` to disable the check, `warning` to print a warning when mismatch detected or `error` to escalate it to a resolution failure.

Check that licensing constraints imposed by dependent packages do not conflict with distribution modes of the targets being built. By default, licenses are not checked.

Don't run tests, just check if they are up-to-date. If all tests results are up-to-date, the testing completes successfully. If any test needs to be built or executed, an error is reported and the testing fails. This option implies --check_up_to_date behavior. Using this option will also add: --check_up_to_date

Don't perform the build, just check if it is up-to-date. If all targets are up-to-date, the build completes successfully. If any step needs to be executed an error is reported and the build fails.

If disabled, visibility errors in target dependencies are demoted to warnings.

If true, log debug information from the client to stderr. Changing this option will not cause the server to restart.

If specified, Bazel will instrument code (using offline instrumentation where possible) and will collect coverage information during tests. Only targets that match --instrumentation_filter will be affected. Usually this option should not be specified directly - 'bazel coverage' command should be used instead.

Use terminal controls to colorize output.

Specifies desired cumulative coverage report type. At this point only LCOV is supported.

Specify the mode the binary will be built in. Values: 'fastbuild', 'dbg', 'opt'.

Compile a single dependency of the argument files. This is useful for syntax checking source files in IDEs, for example, by rebuilding a single target that depends on the source file to detect errors as early as possible in the edit/build/test cycle. This argument affects the way all non-flag arguments are interpreted; instead of being targets to build they are source filenames. For each source filename an arbitrary target that depends on it will be built.

The C++ compiler to use for compiling the target.

Selects additional config sections from the rc files; for every <command>, it also pulls in the options from <command>:<config> if such a section exists; if this section doesn't exist in any .rc file, Blaze fails with an error. The config sections and flag combinations they are equivalent to are located in the tools/*.blazerc config files.

Only sync repositories marked as 'configure' for system-configuration purpose.

Additional option to pass to gcc when compiling C source files.

The amount of time the client waits for each attempt to connect to the server

If enabled, every query command emits labels as if by the Starlark <code>str</code> function applied to a <code>Label</code> instance. This is useful for tools that need to match the output of different query commands and/or labels emitted by rules. If not enabled, output formatters are free to emit apparent repository names (relative to the main repository) instead to make the output more readable.

Additional options to pass to gcc.

Location of the binary that is used to postprocess raw coverage reports. This must currently be a filegroup that contains a single file, the binary. Defaults to '//tools/test:lcov_merger'.

Location of the binary that is used to generate coverage reports. This must currently be a filegroup that contains a single file, the binary. Defaults to '//tools/test:coverage_report_generator'.

Location of support files that are required on the inputs of every test action that collects code coverage. Defaults to '//tools/test: coverage_support'.

The target CPU.

Configures a credential helper conforming to the <a href="https://github.com/EngFlow/credential-helper-spec">Credential Helper Specification</a> to use for retrieving authorization credentials for repository fetching, remote caching and execution, and the build event service.Credentials supplied by a helper take precedence over credentials supplied by `--google_default_credentials`, `--google_credentials`, a `.netrc` file, or the auth parameter to `repository_ctx.download()` and `repository_ctx.download_and_extract()`.May be specified multiple times to set up multiple helpers.See https://blog.engflow.com/2023/10/09/configuring-bazels-credential-helper/ for instructions.

The default duration for which credentials supplied by a credential helper are cached if the helper does not provide when the credentials expire.

Configures the timeout for a credential helper.Credential helpers failing to respond within this timeout will fail the invocation.

Use CSFDO profile information to optimize compilation. Specify the absolute path name of the zip file containing the profile file, a raw or an indexed LLVM profile file.

Generate binaries with context sensitive FDO instrumentation. With Clang/LLVM compiler, it also accepts the directory name under which the raw profile file(s) will be dumped at runtime. Using this option will also add: --copt=-Wno-error

The cs_fdo_profile representing the context sensitive profile to be used for optimization.

Use terminal cursor controls to minimize scrolling output.

Specifies a custom malloc implementation. This setting overrides malloc attributes in build rules.

Additional option to pass to gcc when compiling C++ source files.

Points out dependency cycles inside the displayed tree, which are normally ignored by default.

Whether to wait for the debugger before starting the app. Expands to: --start=DEBUG

Override the default resources amount for tests. The expected format is <resource>=<value>. If a single positive number is specified as <value> it will override the default resources for all test sizes. If 4 comma-separated numbers are specified, they will override the resource amount for respectively the small, medium, large, enormous test sizes. Values can also be HOST_RAM/HOST_CPU, optionally followed by [-|*]<float> (eg. memory=HOST_RAM*.1,HOST_RAM*.2,HOST_RAM*.3,HOST_RAM*.4). The default test resources specified by this flag are overridden by explicit resources specified in tags.

Each --define option specifies an assignment for a build variable. In case of multiple values for a variable, the last one wins.

A comma-separated list of names of packages which the build system will consider non-existent, even if they are visible somewhere on the package path.Use this option when deleting a subpackage 'x/y' of an existing package 'x'. For example, after deleting x/y/BUILD in your client, the build system may complain if it encounters a label '//x:y/z' if that is still provided by another package_path entry. Specifying --deleted_packages x/y avoids this problem.

Maximum display depth of the dependency tree. A depth of 1 displays the direct dependencies, for example. For tree, path and all_paths it defaults to Integer.MAX_VALUE, while for deps and explain it defaults to 1 (only displays direct deps of the root besides the target leaves and their parents).

Whether to desugar Java 8 bytecode before dexing.

Whether to include supported Java 8 libraries in apps for legacy devices.

The adb device serial number. If not specified, the first device will be used.

If set, and compilation mode is not 'opt', objc apps will include debug entitlements when signing.

The hash function to use when computing file digests.

Discard the analysis cache immediately after the analysis phase completes. Reduces memory usage by ~10%, but makes further incremental builds slower.

A path to a directory where Bazel can read and write actions and action outputs. If the directory does not exist, it will be created.

Additional places to search for archives before accessing the network to download them.

output full profile data dump either in human-readable 'text' format or script-friendly 'raw' format.

How many milliseconds should local execution be delayed, if remote execution was faster during a build at least once?

The local strategies, in order, to use for the given mnemonic - the first applicable strategy is used. For example, `worker,sandboxed` runs actions that support persistent workers using the worker strategy, and all others using the sandboxed strategy. If no mnemonic is given, the list of strategies is used as the fallback for all mnemonics. The default fallback list is `worker,sandboxed`, or`worker,sandboxed,standalone` if `experimental_local_lockfree_output` is set. Takes [mnemonic=]local_strategy [,local_strategy,...]

Determines whether C++ binaries will be linked dynamically. 'default' means Bazel will choose whether to link dynamically. 'fully' means all libraries will be linked dynamically. 'off' means that all libraries will be linked in mostly static mode.

The remote strategies, in order, to use for the given mnemonic - the first applicable strategy is used. If no mnemonic is given, the list of strategies is used as the fallback for all mnemonics. The default fallback list is `remote`, so this flag usually does not need to be set explicitly. Takes [mnemonic=]remote_strategy[,remote_strategy,...]

Embed source control revision or release label in binary

If true, enables the Bzlmod dependency management system, taking precedence over WORKSPACE. See https://bazel.build/docs/bzlmod for more information.

If true, Bazel picks up host-OS-specific config lines from bazelrc files. For example, if the host OS is Linux and you run bazel build, Bazel picks up lines starting with build:linux. Supported OS identifiers are linux, macos, windows, freebsd, and openbsd. Enabling this flag is equivalent to using --config=linux on Linux, --config=windows on Windows, etc.

If set, any use of absolute paths for propeller optimize will raise an error.

If set, any use of absolute paths for FDO will raise an error.

Enable runfiles symlink tree; By default, it's off on Windows, on on other platforms.

If true, enables the legacy WORKSPACE system for external dependencies. See https://bazel.build/external/overview for more information.

Checks the environments each target is compatible with and reports errors if any target has dependencies that don't support the same environments

Log the executed spawns into this file as length-delimited SpawnExec protos, according to src/main/protobuf/spawn.proto. Prefer --execution_log_compact_file, which is significantly smaller and cheaper to produce. Related flags: --execution_log_compact_file (compact format; mutually exclusive), --execution_log_json_file (text JSON format; mutually exclusive), --execution_log_sort (whether to sort the execution log), --subcommands (for displaying subcommands in terminal output).

Log the executed spawns into this file as length-delimited ExecLogEntry protos, according to src/main/protobuf/spawn.proto. The entire file is zstd compressed. Related flags: --execution_log_binary_file (binary protobuf format; mutually exclusive), --execution_log_json_file (text JSON format; mutually exclusive), --subcommands (for displaying subcommands in terminal output).

Log the executed spawns into this file as newline-delimited JSON representations of SpawnExec protos, according to src/main/protobuf/spawn.proto. Prefer --execution_log_compact_file, which is significantly smaller and cheaper to produce. Related flags: --execution_log_compact_file (compact format; mutually exclusive), --execution_log_binary_file (binary protobuf format; mutually exclusive), --execution_log_sort (whether to sort the execution log), --subcommands (for displaying subcommands in terminal output).

Whether to sort the execution log, making it easier to compare logs across invocations. Set to false to avoid potentially significant CPU and memory usage at the end of the invocation, at the cost of producing the log in nondeterministic execution order. Only applies to the binary and JSON formats; the compact format is never sorted.

Expand test_suite targets into their constituent tests before analysis. When this flag is turned on (the default), negative target patterns will apply to the tests belonging to the test suite, otherwise they will not. Turning off this flag is useful when top-level aspects are applied at command line: then they can analyze test_suite targets.

Deprecated in favor of aspects. Use action_listener to attach an extra_action to existing build actions.

No-op.

List of comma-separated regular expressions, each optionally prefixed by - (negative expression), assigned (=) to a list of comma-separated constraint value targets. If a target matches no negative expression and at least one positive expression its toolchain resolution will be performed as if it had declared the constraint values as execution constraints. Example: //demo,- test=@platforms//cpus:x86_64 will add 'x86_64' to any target under //demo except for those whose name contains 'test'.

Compress Java resources in APKs

Use android databinding v2. This flag is a no-op.

Enables resource shrinking for android_binary APKs that use ProGuard.

use rex tool to rewrite dex files

Use dex2oat in parallel to possibly speed up android_test.

Whether to publish TargetSummary events.

If true, expand Filesets in the BEP when presenting output files.

If true, fully resolve relative Fileset symlinks in the BEP when presenting output files. Requires --experimental_build_event_expand_filesets.

Specify how an output group's files will be represented in TargetComplete/AspectComplete BEP events. Values are an assignment of an output group name to one of 'NAMED_SET_OF_FILES_ONLY', 'INLINE_ONLY', or 'BOTH'. The default value is 'NAMED_SET_OF_FILES_ONLY'. If an output group is repeated, the final value to appear is used. The default value sets the mode for coverage artifacts to BOTH: -- experimental_build_event_output_group_mode=baseline.lcov=both

Initial, minimum delay for exponential backoff retries when BEP upload fails. (exponent: 1.6)

Selects how to upload artifacts referenced in the build event protocol.

If enabled, adds a `visibility()` function that .bzl files may call during top-level evaluation to set their visibility for the purpose of load() statements.

If true, then Blaze will cancel concurrently running tests on the first successful run. This is only useful in combination with -- runs_per_test_detects_flakes.

If set to true, rule attributes and Starlark API methods needed for the rule cc_shared_library will be available

If set to true, rule attributes and Starlark API methods needed for the rule cc_static_library will be available

The cgroup where to start the bazel server as an absolute path. The server process will be started in the specified cgroup for each supported controller. For example, if the value of this flag is /build/bazel and the cpu and memory controllers are mounted respectively on /sys/fs/cgroup/cpu and /sys/fs/cgroup/memory, the server will be started in the cgroups /sys/fs/cgroup/cpu/build/bazel and /sys/fs/cgroup/memory/build/bazel.It is not an error if the specified cgroup is not writable for one or more of the controllers. This options does not have any effect on platforms that do not support cgroups.

Whether to double-check correct desugaring at Android binary level.

Specifies the strategy for the circuit breaker to use. Available strategies are "failure". On invalid value for the option the behavior same as the option is not set.

If specified, Bazel will also generate collect coverage information for generated files.

If enabled, the profiler collects the system's overall load average.

Deprecated no-op.

If enabled, the profiler collects the Linux PSI data.

If enabled, the profiler collects CPU and memory usage estimation for local actions.

If enabled, the profiler collects SkyFunction counts in the Skyframe graph over time for key function types, like configured targets and action executions. May have a performance hit as this visits the ENTIRE Skyframe graph at every profiling time unit. Do not use this flag with performance- critical measurements.

If enabled, the profiler collects the system's network usage.

If enabled, the profiler collects worker's aggregated resource data.

Records a Java Flight Recorder profile for the duration of the command. One of the supported profiling event types (cpu, wall, alloc or lock) must be given as an argument. The profile is written to a file named after the event type under the output base directory. The syntax and semantics of this flag might change in the future to support additional profile types or output formats; use at your own risk.

This flag controls how the convenience symlinks (the symlinks that appear in the workspace after the build) will be managed. Possible values: normal (default): Each kind of convenience symlink will be created or deleted, as determined by the build. clean: All symlinks will be unconditionally deleted. ignore: Symlinks will not be created or cleaned up. log_only: Generate log messages as if 'normal' were passed, but don't actually perform any filesystem operations (useful for tools). Note that only symlinks whose names are generated by the current value of -- symlink_prefix can be affected; if the prefix changes, any pre-existing symlinks will be left alone.

This flag controls whether or not we will post the build eventConvenienceSymlinksIdentified to the BuildEventProtocol. If the value is true, the BuildEventProtocol will have an entry for convenienceSymlinksIdentified, listing all of the convenience symlinks created in your workspace. If false, then the convenienceSymlinksIdentified entry in the BuildEventProtocol will be empty.

Enables the experimental local execution scheduling based on CPU load, not estimation of actions one by one. Experimental scheduling have showed the large benefit on a large local builds on a powerful machines with the large number of cores. Reccommended to use with --local_resources=cpu=HOST_CPUS

If set to true, the auto-generated //external package will not be available anymore. Bazel will still be unable to parse the file 'external/BUILD', but globs reaching into external/ from the unnamed package will work.

How long the server must remain idle before a garbage collection of the disk cache occurs. To specify the garbage collection policy, set --experimental_disk_cache_gc_max_size and/or --experimental_disk_cache_gc_max_age.

If set to a positive value, the disk cache will be periodically garbage collected to remove entries older than this age. If set in conjunction with --experimental_disk_cache_gc_max_size, both criteria are applied. Garbage collection occurrs in the background once the server has become idle, as determined by the --experimental_disk_cache_gc_idle_delay flag.

If set to a positive value, the disk cache will be periodically garbage collected to stay under this size. If set in conjunction with --experimental_disk_cache_gc_max_age, both criteria are applied. Garbage collection occurrs in the background once the server has become idle, as determined by the --experimental_disk_cache_gc_idle_delay flag.

Specify a Docker image name (e.g. "ubuntu:latest") that should be used to execute a sandboxed action when using the docker strategy and the action itself doesn't already have a container-image attribute in its remote_execution_properties in the platform description. The value of this flag is passed verbatim to 'docker run', so it supports the same syntax and mechanisms as Docker itself.

If enabled, Bazel will pass the --privileged flag to 'docker run' when running actions. This might be required by your build, but it might also result in reduced hermeticity.

If enabled, injects the uid and gid of the current user into the Docker image before using it. This is required if your build / tests depend on the user having a name and home directory inside the container. This is on by default, but you can disable it in case the automatic image customization feature doesn't work in your case or you know that you don't need it.

If enabled, Bazel will print more verbose messages about the Docker sandbox strategy.

If set to true, attr.label(materializer=), attr (for_dependency_resolution=), attr.dormant_label(), attr. dormant_label_list() and rule(for_dependency_resolution=) are allowed.

Specify a file to configure the remote downloader with. This file consists of lines, each of which starts with a directive (`allow`, `block` or `rewrite`) followed by either a host name (for `allow` and `block`) or two patterns, one to match against, and one to use as a substitute URL, with back-references starting from `$1`. It is possible for multiple `rewrite` directives for the same URL to be give, and in this case multiple URLs will be returned.

When set, targets that are build "for tool" are not subject to dynamic execution. Such targets are extremely unlikely to be built incrementally and thus not worth spending local cycles on.

Takes a list of OS signal numbers. If a local branch of dynamic execution gets killed with any of these signals, the remote branch will be allowed to finish instead. For persistent workers, this only affects signals that kill the worker process.

Controls how much load from dynamic execution to put on the local machine. This flag adjusts how many actions in dynamic execution we will schedule concurrently. It is based on the number of CPUs Blaze thinks is available, which can be controlled with the --local_cpu_resources flag. If this flag is 0, all actions are scheduled locally immediately. If > 0, the amount of actions scheduled locally is limited by the number of CPUs available. If < 1, the load factor is used to reduce the number of locally scheduled actions when the number of actions waiting to schedule is high. This lessens the load on the local machine in the clean build case, where the local machine does not contribute much.

If >0, the time a dynamically run action must run remote-only before we prioritize its local execution to avoid remote timeouts. This may hide some problems on the remote execution system. Do not turn this on without monitoring of remote execution issues.

If set to true, enables the APIs required to support the Android Starlark migration.

Enable Docker-based sandboxing. This option has no effect if Docker is not installed.

If set to true, enables the `macro()` construct for defining symbolic macros.

If set to true, .scl files may be used in load() statements.

If true, enable the use of --experimental_working_set to reduce Bazel's memory footprint for incremental builds. This feature is known as Skyfocus.

If true, enable the set data type and set() constructor in Starlark.

aquery, cquery: whether to include aspect-generated actions in the output. query: no-op (aspects are always followed).

Deprecated in favor of aspects. Filters set of targets to schedule extra_actions for.

Deprecated in favor of aspects. Only schedules extra_actions for top level targets.

If true, then Bazel fetches the entire coverage data directory for each test during a coverage run.

Filter the ProGuard ProgramJar to remove any classes also present in the LibraryJar.

If true, coverage for clang will generate an LCOV report.

If set to true, exposes a number of experimental pieces of Starlark build API pertaining to Google legacy code.

If true, uses a Query implementation that does not make a copy of the graph. The new implementation only supports --order_output=no, as well as only a subset of output formatters.

Turn this off to disable checking the ctime of input files of an action before uploading it to a remote cache. There may be cases where the Linux kernel delays writing of files, which could cause false positives.

No-op, kept only for backwards compatibility

Whether Starlark options set to their default values are included in the output.

If set, add a "requires-xcode:{version}" execution requirement to every Xcode action. If the Xcode version has a hyphenated label, also add a "requires-xcode-label:{version_label}" execution requirement.

If enabled, C++ .d files will be passed through in memory directly from the remote build nodes instead of being written to disk.

If enabled, the dependency (.jdeps) files generated from Java compilations will be passed through in memory directly from the remote build nodes instead of being written to disk.

If set to true, the contents of stashed sandboxes for reuse_sandbox_directories will be tracked in memory. This reduces the amount of I/O needed during reuse. Depending on the build this flag may improve wall time. Depending on the build as well this flag may use a significant amount of additional memory.

Whether to make direct filesystem calls to create symlink trees instead of delegating to a helper process.

How long an install base must go unused before it's eligible for garbage collection. If nonzero, the server will attempt to garbage collect other install bases when idle.

If true, enables the <code>isolate</code> parameter in the <a href="https: //bazel.build/rules/lib/globals/module#use_extension" ><code>use_extension</code></a> function.

Whether to generate J2ObjC header map in parallel of J2ObjC transpilation.

Whether to generate with shorter header path (uses "_ios" instead of "_j2objc").

Enables reduced classpaths for Java compilations.

If enabled, experimental_java_library_export_do_not_use module is available.

No-op, kept only for backwards compatibility

If materializing param files, do so with direct writes to disk.

Uses these strings as objc fastbuild compiler options.

If true, use libunwind for stack unwinding, and compile with -fomit-frame- pointer and -fasynchronous-unwind-tables.

When enabled, enforce that a java_binary rule can't contain more than one version of the same class file on the classpath. This enforcement can break the build, or can just result in warnings.

Which model to use for where in the output tree rules write their outputs, particularly for multi-platform / multi-configuration builds. This is highly experimental. See https://github.com/bazelbuild/bazel/issues/6526 for details. Starlark actions canopt into path mapping by adding the key 'supports-path-mapping' to the 'execution_requirements' dict.

Each entry should be of the form label=value where label refers to a platform and values is the desired shortname to use in the output path. Only used when --experimental_platform_in_output_dir is true. Has highest naming priority.

No-op.

Enable persistent aar extractor by using workers.

If true, a shortname for the target platform is used in the output directory name instead of the CPU. The exact scheme is experimental and subject to change: First, in the rare case the --platforms option does not have exactly one value, a hash of the platforms option is used. Next, if any shortname for the current platform was registered by -- experimental_override_name_platform_in_output_dir, then that shortname is used. Then, if --experimental_use_platforms_in_output_dir_legacy_heuristic is set, use a shortname based off the current platform Label. Finally, a hash of the platform option is used as a last resort.

If set to true, enables a number of platform-related Starlark APIs useful for debugging.

If true, use the most recent Xcode that is available both locally and remotely. If false, or if there are no mutual available versions, use the local Xcode version selected via xcode-select.

Specifies additional profile tasks to be included in the profile.

Includes the extra "out" attribute in action events that contains the exec path to the action's primary output.

Includes target configuration hash in action events' JSON profile data.

Includes target label in action events' JSON profile data.

Run extra actions for alternative Java api versions in a proto_library.

py_binary targets include their label even when stamping is disabled.

Controls the output of BEP ActionSummary and BuildGraphMetrics, limiting the number of mnemonics in ActionData and number of entries reported in BuildGraphMetrics.AspectCount/RuleClassCount. By default the number of types is limited to the top 20, by number of executed actions for ActionData, and instances for RuleClass and Asepcts. Setting this option will write statistics for all mnemonics, rule classes and aspects.

Controls the output of BEP BuildGraphMetrics, including expensiveto compute skyframe metrics about Skykeys, RuleClasses and Aspects.With this flag set to false BuildGraphMetrics.rule_count and aspectfields will not be populated in the BEP.

Whether to make source manifest actions remotable

The minimum blob size required to compress/decompress with zstd. Ineffectual unless --remote_cache_compression is set.

The maximum number of attempts to retry if the build encountered a transient remote cache error that would otherwise fail the build. Applies for example when artifacts are evicted from the remote cache, or in certain cache failure conditions. A non-zero value will implicitly set -- incompatible_remote_use_new_exit_code_for_lost_inputs to true. A new invocation id will be generated for each attempt. If you generate invocation id and provide it to Bazel with --invocation_id, you should not use this flag. Instead, set flag -- incompatible_remote_use_new_exit_code_for_lost_inputs and check for the exit code 39.

If set to true, Bazel will extend the lease for outputs of remote actions during the build by sending `FindMissingBlobs` calls periodically to remote cache. The frequency is based on the value of `--experimental_remote_cache_ttl`.

The guaranteed minimal TTL of blobs in the remote cache after their digests are recently referenced e.g. by an ActionResult or FindMissingBlobs. Bazel does several optimizations based on the blobs' TTL e.g. doesn't repeatedly call GetActionResult in an incremental build. The value should be set slightly less than the real TTL since there is a gap between when the server returns the digests and when Bazel receives them.

A path to a directory where the corrupted outputs will be captured to.

If set to true, discard in-memory copies of the input root's Merkle tree and associated input mappings during calls to GetActionResult() and Execute(). This reduces memory usage significantly, but does require Bazel to recompute them upon remote cache misses and retries.

A Remote Asset API endpoint URI, to be used as a remote download proxy. The supported schemas are grpc, grpcs (grpc with TLS enabled) and unix (local UNIX sockets). If no schema is provided Bazel will default to grpcs. See: https://github.com/bazelbuild/remote-apis/blob/master/build/bazel/remote/asset/v1/remote_asset.proto

Whether to fall back to the local downloader if remote downloader fails.

Whether to propagate credentials from netrc and credential helper to the remote downloader server. The server implementation needs to support the new `http_header_url:<url-index>:<header-key>` qualifier where the `<url-index>` is a 0-based position of the URL inside the FetchBlobRequest's `uris` field. The URL-specific headers should take precedence over the global headers.

Whether to use keepalive for remote execution calls.

Sets the allowed number of failure rate in percentage for a specific time window after which it stops calling to the remote cache/executor. By default the value is 10. Setting this to 0 means no limitation.

The interval in which the failure rate of the remote requests are computed. On zero or negative value the failure duration is computed the whole duration of the execution.Following units can be used: Days (d), hours (h), minutes (m), seconds (s), and milliseconds (ms). If the unit is omitted, the value is interpreted as seconds.

If set to true, Bazel will mark inputs as tool inputs for the remote executor. This can be used to implement remote persistent workers.

If set to true, Merkle tree calculations will be memoized to improve the remote cache hit checking speed. The memory foot print of the cache is controlled by --experimental_remote_merkle_tree_cache_size.

The number of Merkle trees to memoize to improve the remote cache hit checking speed. Even though the cache is automatically pruned according to Java's handling of soft references, out-of-memory errors can occur if set too high. If set to 0 the cache size is unlimited. Optimal value varies depending on project's size. Default to 1000.

HOST or HOST:PORT of a remote output service endpoint. The supported schemas are grpc, grpcs (grpc with TLS enabled) and unix (local UNIX sockets). If no schema is provided Bazel will default to grpcs. Specify grpc:// or unix: schema to disable TLS.

The path under which the contents of output directories managed by the --experimental_remote_output_service are placed. The actual output directory used by a build will be a descendant of this path and determined by the output service.

If set to true, enforce that all actions that can run remotely are cached, or else fail the build. This is useful to troubleshoot non-determinism issues as it allows checking whether actions that should be cached are actually cached without spuriously injecting new results into the cache.

Enables remote cache key scrubbing with the supplied configuration file, which must be a protocol buffer in text format (see src/main/protobuf/remote_scrubbing.proto).This feature is intended to facilitate sharing a remote/disk cache between actions executing on different platforms but targeting the same platform. It should be used with extreme care, as improper settings may cause accidental sharing of cache entries and result in incorrect builds.Scrubbing does not affect how an action is executed, only how its remote/disk cache key is computed for the purpose of retrieving or storing an action result. Scrubbed actions are incompatible with remote execution, and will always be executed locally instead.Modifying the scrubbing configuration does not invalidate outputs present in the local filesystem or internal caches; a clean build is required to reexecute affected actions.In order to successfully use this feature, you likely want to set a custom --host_platform together with --experimental_platform_in_output_dir (to normalize output prefixes) and --incompatible_strict_action_env (to normalize environment variables).

If set to true, repository_rule gains some remote execution capabilities.

If set, the repository cache will hardlink the file in case of a cache hit, rather than copying. This is intended to save disk space.

The maximum number of attempts to retry a download error. If set to 0, retries are disabled.

If non-empty, write a Starlark value with the resolved information of all Starlark repository rules that were executed.

If non-empty read the specified resolved file instead of the WORKSPACE file

When enabled, --trim_test_configuration will not trim the test configuration for rules marked testonly=1. This is meant to reduce action conflict issues when non-test rules depend on cc_test rules. No effect if -- trim_test_configuration is false.

Enable experimental rule extension API and subrule APIs

Whether to validate java_* sources.

Whether to include the command-line residue in run build events which could contain the residue. By default, the residue is not included in run command build events that could contain the residue.

If 0, delete sandbox trees as soon as an action completes (causing completion of the action to be delayed). If greater than zero, execute the deletion of such threes on an asynchronous thread pool that has size 1 when the build is running and grows to the size specified by this flag when the server is idle.

If true, actions whose mnemonic matches the input regex will have their resources request enforced as limits, overriding the value of -- experimental_sandbox_limits, if the resource type supports it. For example a test that declares cpu:3 and resources:memory:10, will run with at most 3 cpus and 10 megabytes of memory.

If > 0, each Linux sandbox will be limited to the given amount for the specified resource. Requires --incompatible_use_new_cgroup_implementation and overrides --experimental_sandbox_memory_limit_mb. Requires cgroups v1 or v2 and permissions for the users to the cgroups dir.

If > 0, each Linux sandbox will be limited to the given amount of memory (in MB). Requires cgroups v1 or v2 and permissions for the users to the cgroups dir.

No-op

Save the state of enabled and requested feautres as an output of compilation.

Scale all timeouts in Starlark repository rules by this factor. In this way, external repositories can be made working on machines that are slower than the rule author expected, without changing the source code

If enabled, could shrink worker pool if worker memory pressure is high. This flag works only when flag experimental_total_worker_memory_limit_mb is enabled.

If set to true, non-main repositories are planted as symlinks to the main repository in the execution root. That is, all repositories are direct children of the $output_base/execution_root directory. This has the side effect of freeing up $output_base/execution_root/__main__/external for the real top-level 'external' directory.

If enabled, the register_toolchain function may not include target patterns which may refer to more than one package.

For debugging Skyfocus. Dump the focused SkyKeys (roots, leafs, focused deps, focused rdeps).

For debugging Skyfocus. If enabled, trigger manual GC before/after focusing to report heap sizes reductions. This will increase the Skyfocus latency.

Strategies for Skyfocus to handle changes outside of the working set.

Enable dynamic execution by running actions locally and remotely in parallel. Bazel spawns each action locally and remotely and picks the one that completes first. If an action supports workers, the local action will be run in the persistent worker mode. To enable dynamic execution for an individual action mnemonic, use the `--internal_spawn_scheduler` and `--strategy=<mnemonic>=dynamic` flags instead. Expands to: --internal_spawn_scheduler --spawn_strategy=dynamic

If true, then Bazel will run coverage postprocessing for test in a new spawn.

If this flag is set, and a test action does not generate a test.xml file, then Bazel uses a separate action to generate a dummy test.xml file containing the test log. Otherwise, Bazel generates a test.xml as part of the test action.