| // Copyright 2014 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| package com.google.devtools.build.lib.runtime; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.util.OptionsUtils; |
| import com.google.devtools.build.lib.vfs.DigestHashFunction; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| import com.google.devtools.common.options.Converter; |
| import com.google.devtools.common.options.Option; |
| import com.google.devtools.common.options.OptionDocumentationCategory; |
| import com.google.devtools.common.options.OptionEffectTag; |
| import com.google.devtools.common.options.OptionMetadataTag; |
| import com.google.devtools.common.options.OptionsBase; |
| import java.util.Map; |
| |
| /** |
| * Options that will be evaluated by the blaze client startup code and passed to the blaze server |
| * upon startup. |
| * |
| * <h4>IMPORTANT</h4> |
| * |
| * These options and their defaults must be kept in sync with those in the source of the launcher. |
| * The latter define the actual default values, most startup options are passed every time, |
| * regardless of whether a value was set explicitly or if the default was used. Some options are |
| * omitted by default, though this should only be true for options where "omitted" is a distinct |
| * value. |
| * |
| * <p>The same relationship holds between {@link HostJvmStartupOptions} and the launcher. |
| */ |
| public class BlazeServerStartupOptions extends OptionsBase { |
| /** |
| * Converter for the <code>option_sources</code> option. Takes a string in the form of |
| * "option_name1:source1:option_name2:source2:.." and converts it into an option name to |
| * source map. |
| */ |
| public static class OptionSourcesConverter implements Converter<Map<String, String>> { |
| private String unescape(String input) { |
| return input.replace("_C", ":").replace("_U", "_"); |
| } |
| |
| @Override |
| public Map<String, String> convert(String input) { |
| ImmutableMap.Builder<String, String> builder = ImmutableMap.builder(); |
| if (input.isEmpty()) { |
| return builder.build(); |
| } |
| |
| String[] elements = input.split(":"); |
| for (int i = 0; i < (elements.length + 1) / 2; i++) { |
| String name = elements[i * 2]; |
| String value = ""; |
| if (elements.length > i * 2 + 1) { |
| value = elements[i * 2 + 1]; |
| } |
| builder.put(unescape(name), unescape(value)); |
| } |
| return builder.build(); |
| } |
| |
| @Override |
| public String getTypeDescription() { |
| return "a list of option-source pairs"; |
| } |
| } |
| |
| /* Passed from the client to the server, specifies the installation |
| * location. The location should be of the form: |
| * $OUTPUT_BASE/_blaze_${USER}/install/${MD5_OF_INSTALL_MANIFEST}. |
| * The server code will only accept a non-empty path; it's the |
| * responsibility of the client to compute a proper default if |
| * necessary. |
| */ |
| @Option( |
| name = "install_base", |
| defaultValue = "", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.UNDOCUMENTED, |
| effectTags = {OptionEffectTag.CHANGES_INPUTS, OptionEffectTag.LOSES_INCREMENTAL_STATE}, |
| metadataTags = {OptionMetadataTag.HIDDEN}, |
| converter = OptionsUtils.PathFragmentConverter.class, |
| help = "This launcher option is intended for use only by tests." |
| ) |
| public PathFragment installBase; |
| |
| /* |
| * The installation MD5 - a content hash of the blaze binary (includes the Blaze deploy JAR and |
| * any other embedded binaries - anything that ends up in the install_base). |
| */ |
| @Option( |
| name = "install_md5", |
| defaultValue = "", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.UNDOCUMENTED, |
| effectTags = {OptionEffectTag.LOSES_INCREMENTAL_STATE, OptionEffectTag.BAZEL_MONITORING}, |
| metadataTags = {OptionMetadataTag.HIDDEN}, |
| help = "This launcher option is intended for use only by tests." |
| ) |
| public String installMD5; |
| |
| /* Note: The help string in this option applies to the client code; not |
| * the server code. The server code will only accept a non-empty path; it's |
| * the responsibility of the client to compute a proper default if |
| * necessary. |
| */ |
| @Option( |
| name = "output_base", |
| defaultValue = "null", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.AFFECTS_OUTPUTS, OptionEffectTag.LOSES_INCREMENTAL_STATE}, |
| converter = OptionsUtils.PathFragmentConverter.class, |
| valueHelp = "<path>", |
| help = |
| "If set, specifies the output location to which all build output will be written. " |
| + "Otherwise, the location will be " |
| + "${OUTPUT_ROOT}/_blaze_${USER}/${MD5_OF_WORKSPACE_ROOT}. Note: If you specify a " |
| + "different option from one to the next Bazel invocation for this value, you'll " |
| + "likely start up a new, additional Bazel server. Bazel starts exactly one server " |
| + "per specified output base. Typically there is one output base per workspace - " |
| + "however, with this option you may have multiple output bases per workspace and " |
| + "thereby run multiple builds for the same client on the same machine concurrently. " |
| + "See 'bazel help shutdown' on how to shutdown a Bazel server.") |
| public PathFragment outputBase; |
| |
| @Option( |
| name = "output_user_root", |
| defaultValue = "null", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.AFFECTS_OUTPUTS, OptionEffectTag.LOSES_INCREMENTAL_STATE}, |
| converter = OptionsUtils.PathFragmentConverter.class, |
| valueHelp = "<path>", |
| help = |
| "The user-specific directory beneath which all build outputs are written; by default, " |
| + "this is a function of $USER, but by specifying a constant, build outputs can be " |
| + "shared between collaborating users." |
| ) |
| public PathFragment outputUserRoot; |
| |
| /** |
| * Note: This option is only used by the C++ client, never by the Java server. It is included here |
| * to make sure that the option is documented in the help output, which is auto-generated by Java |
| * code. |
| */ |
| @Option( |
| name = "server_jvm_out", |
| defaultValue = "null", |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.AFFECTS_OUTPUTS, OptionEffectTag.LOSES_INCREMENTAL_STATE}, |
| converter = OptionsUtils.PathFragmentConverter.class, |
| valueHelp = "<path>", |
| help = |
| "The location to write the server's JVM's output. If unset then defaults to a location " |
| + "in output_base." |
| ) |
| public PathFragment serverJvmOut; |
| |
| @Option( |
| name = "workspace_directory", |
| defaultValue = "", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.UNDOCUMENTED, |
| effectTags = {OptionEffectTag.CHANGES_INPUTS, OptionEffectTag.LOSES_INCREMENTAL_STATE}, |
| metadataTags = {OptionMetadataTag.HIDDEN}, |
| converter = OptionsUtils.PathFragmentConverter.class, |
| help = |
| "The root of the workspace, that is, the directory that Bazel uses as the root of the " |
| + "build. This flag is only to be set by the bazel client.") |
| public PathFragment workspaceDirectory; |
| |
| @Option( |
| name = "default_system_javabase", |
| defaultValue = "", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.UNDOCUMENTED, |
| effectTags = {OptionEffectTag.CHANGES_INPUTS, OptionEffectTag.LOSES_INCREMENTAL_STATE}, |
| metadataTags = {OptionMetadataTag.HIDDEN}, |
| converter = OptionsUtils.PathFragmentConverter.class, |
| help = |
| "The root of the user's local JDK install, to be used as the default target javabase" |
| + " and as a fall-back host_javabase. This is not the embedded JDK.") |
| public PathFragment defaultSystemJavabase; |
| |
| @Option( |
| name = "max_idle_secs", |
| // NOTE: default value only used for documentation, value is always passed by the client when |
| // not in --batch mode. |
| defaultValue = "" + (3 * 3600), |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.EAGERNESS_TO_EXIT, OptionEffectTag.LOSES_INCREMENTAL_STATE}, |
| valueHelp = "<integer>", |
| help = |
| "The number of seconds the build server will wait idling before shutting down. Zero " |
| + "means that the server will never shutdown." |
| ) |
| public int maxIdleSeconds; |
| |
| @Option( |
| name = "shutdown_on_low_sys_mem", |
| defaultValue = "false", |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.EAGERNESS_TO_EXIT, OptionEffectTag.LOSES_INCREMENTAL_STATE}, |
| help = |
| "If max_idle_secs is set and the build server has been idle for a while, shut down the " |
| + "server when the system is low on free RAM. Linux only.") |
| public boolean shutdownOnLowSysMem; |
| |
| @Option( |
| name = "batch", |
| defaultValue = "false", |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = { |
| OptionEffectTag.LOSES_INCREMENTAL_STATE, |
| OptionEffectTag.BAZEL_INTERNAL_CONFIGURATION |
| }, |
| metadataTags = {OptionMetadataTag.DEPRECATED}, |
| help = |
| "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.") |
| public boolean batch; |
| |
| @Option( |
| name = "deep_execroot", |
| defaultValue = "true", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.LOSES_INCREMENTAL_STATE, OptionEffectTag.EXECUTION}, |
| help = |
| "If set, the execution root will be under $OUTPUT_BASE/execroot instead of " |
| + "$OUTPUT_BASE." |
| ) |
| public boolean deepExecRoot; |
| |
| @Option( |
| name = "experimental_oom_more_eagerly", |
| defaultValue = "false", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.LOSES_INCREMENTAL_STATE, OptionEffectTag.EAGERNESS_TO_EXIT}, |
| help = |
| "If set, attempt to detect Java heap OOM conditions and exit before thrashing. Only " |
| + "honored when --batch is also passed. In some cases, builds that previously " |
| + "succeeded may OOM if they were close to OOMing before. Deprecated: " |
| + "Use the command argument --experimental_oom_more_eagerly_threshold instead." |
| ) |
| public boolean oomMoreEagerly; |
| |
| @Option( |
| name = "experimental_oom_more_eagerly_threshold", |
| defaultValue = "100", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.LOSES_INCREMENTAL_STATE, OptionEffectTag.EAGERNESS_TO_EXIT}, |
| help = |
| "If this flag is set, Bazel will OOM if, after two full GC's, more than this percentage " |
| + "of the (old gen) heap is still occupied. Deprecated: Use the command argument " |
| + "--experimental_oom_more_eagerly_threshold instead.") |
| public int oomMoreEagerlyThreshold; |
| |
| @Option( |
| name = "block_for_lock", |
| defaultValue = "true", // NOTE: only for documentation, value never passed to the server. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.EAGERNESS_TO_EXIT}, |
| help = |
| "When --noblock_for_lock is passed, Bazel does not wait for a running command to " |
| + "complete, but instead exits immediately.") |
| public boolean blockForLock; |
| |
| @Option( |
| name = "io_nice_level", |
| defaultValue = "-1", // NOTE: only for documentation, value never passed to the server. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.HOST_MACHINE_RESOURCE_OPTIMIZATIONS}, |
| valueHelp = "{-1,0,1,2,3,4,5,6,7}", |
| help = |
| "Only on Linux; set a level from 0-7 for best-effort IO scheduling using the " |
| + "sys_ioprio_set system call. 0 is highest priority, 7 is lowest. The anticipatory " |
| + "scheduler may only honor up to priority 4. If set to a negative value, then Bazel " |
| + "does not perform a system call.") |
| public int ioNiceLevel; |
| |
| @Option( |
| name = "batch_cpu_scheduling", |
| defaultValue = "false", // NOTE: only for documentation, value never passed to the server. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.HOST_MACHINE_RESOURCE_OPTIMIZATIONS}, |
| help = |
| "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.") |
| public boolean batchCpuScheduling; |
| |
| @Option( |
| name = "ignore_all_rc_files", |
| defaultValue = "false", // NOTE: purely decorative, rc files are read by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.CHANGES_INPUTS}, |
| help = |
| "Disables all rc files, regardless of the values of other rc-modifying flags, even if " |
| + "these flags come later in the list of startup options.") |
| public boolean ignoreAllRcFiles; |
| |
| @Option( |
| name = "fatal_event_bus_exceptions", |
| defaultValue = "false", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.UNDOCUMENTED, |
| effectTags = {OptionEffectTag.EAGERNESS_TO_EXIT, OptionEffectTag.LOSES_INCREMENTAL_STATE}, |
| help = "Whether or not to exit if an exception is thrown by an internal EventBus handler." |
| ) |
| public boolean fatalEventBusExceptions; |
| |
| @Option( |
| name = "option_sources", |
| converter = OptionSourcesConverter.class, |
| defaultValue = "", |
| documentationCategory = OptionDocumentationCategory.UNDOCUMENTED, |
| effectTags = {OptionEffectTag.AFFECTS_OUTPUTS}, |
| metadataTags = {OptionMetadataTag.HIDDEN}, |
| help = "" |
| ) |
| public Map<String, String> optionSources; |
| |
| // TODO(bazel-team): In order to make it easier to have local watchers in open source Bazel, |
| // turn this into a non-startup option. |
| @Option( |
| name = "watchfs", |
| defaultValue = "false", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.UNKNOWN}, |
| metadataTags = OptionMetadataTag.DEPRECATED, |
| help = |
| "If true, %{product} tries to use the operating system's file watch service for local " |
| + "changes instead of scanning every file for a change." |
| ) |
| public boolean watchFS; |
| |
| // This option is only passed in --batch mode. The value is otherwise passed as part of the |
| // server request. |
| @Option( |
| name = "invocation_policy", |
| defaultValue = "", |
| documentationCategory = OptionDocumentationCategory.UNDOCUMENTED, |
| effectTags = {OptionEffectTag.CHANGES_INPUTS}, |
| help = |
| "A base64-encoded-binary-serialized or text-formated " |
| + "invocation_policy.InvocationPolicy proto. Unlike other options, it is an error to " |
| + "specify --invocation_policy multiple times." |
| ) |
| public String invocationPolicy; |
| |
| @Option( |
| name = "command_port", |
| defaultValue = "0", |
| documentationCategory = OptionDocumentationCategory.UNDOCUMENTED, |
| effectTags = { |
| OptionEffectTag.LOSES_INCREMENTAL_STATE, |
| OptionEffectTag.BAZEL_INTERNAL_CONFIGURATION |
| }, |
| help = "Port to start up the gRPC command server on. If 0, let the kernel choose." |
| ) |
| public int commandPort; |
| |
| @Option( |
| name = "product_name", |
| defaultValue = "bazel", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.UNDOCUMENTED, |
| effectTags = { |
| OptionEffectTag.LOSES_INCREMENTAL_STATE, |
| OptionEffectTag.AFFECTS_OUTPUTS, |
| OptionEffectTag.BAZEL_MONITORING |
| }, |
| metadataTags = {OptionMetadataTag.HIDDEN}, |
| help = |
| "The name of the build system. It is used as part of the name of the generated " |
| + "directories (e.g. productName-bin for binaries) as well as for printing error " |
| + "messages and logging" |
| ) |
| public String productName; |
| |
| // TODO(ulfjack): Make this a command option. |
| @Option( |
| name = "write_command_log", |
| defaultValue = "true", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.UNDOCUMENTED, |
| effectTags = {OptionEffectTag.AFFECTS_OUTPUTS, OptionEffectTag.LOSES_INCREMENTAL_STATE}, |
| help = "Whether or not to write the command.log file" |
| ) |
| public boolean writeCommandLog; |
| |
| @Option( |
| name = "client_debug", |
| defaultValue = "false", // NOTE: only for documentation, value is set and used by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.AFFECTS_OUTPUTS, OptionEffectTag.BAZEL_MONITORING}, |
| help = |
| "If true, log debug information from the client to stderr. Changing this option will not " |
| + "cause the server to restart." |
| ) |
| public boolean clientDebug; |
| |
| @Option( |
| name = "connect_timeout_secs", |
| defaultValue = "30", // NOTE: only for documentation, value is set and used by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.BAZEL_INTERNAL_CONFIGURATION}, |
| help = "The amount of time the client waits for each attempt to connect to the server") |
| public int connectTimeoutSecs; |
| |
| // TODO(b/109764197): Add OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS & remove the |
| // experimental tag once this has been tested and is ready for use. |
| @Option( |
| name = "digest_function", |
| defaultValue = "null", |
| converter = DigestHashFunction.DigestFunctionConverter.class, |
| documentationCategory = OptionDocumentationCategory.UNDOCUMENTED, |
| effectTags = { |
| OptionEffectTag.LOSES_INCREMENTAL_STATE, |
| OptionEffectTag.BAZEL_INTERNAL_CONFIGURATION |
| }, |
| metadataTags = OptionMetadataTag.EXPERIMENTAL, |
| help = "The hash function to use when computing file digests.") |
| public DigestHashFunction digestHashFunction; |
| |
| @Deprecated |
| @Option( |
| name = "expand_configs_in_place", |
| defaultValue = "true", // NOTE: only for documentation, value is always passed by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = {OptionEffectTag.NO_OP}, |
| metadataTags = {OptionMetadataTag.DEPRECATED}, |
| deprecationWarning = "This option is now a no-op and will soon be deleted.", |
| help = |
| "Changed the expansion of --config flags to be done in-place, as opposed to in a fixed " |
| + "point expansion between normal rc options and command-line specified options.") |
| public boolean expandConfigsInPlace; |
| |
| @Option( |
| name = "idle_server_tasks", |
| defaultValue = "true", // NOTE: only for documentation, value is set and used by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = { |
| OptionEffectTag.LOSES_INCREMENTAL_STATE, |
| OptionEffectTag.HOST_MACHINE_RESOURCE_OPTIMIZATIONS, |
| }, |
| help = "Run System.gc() when the server is idle") |
| public boolean idleServerTasks; |
| |
| @Option( |
| name = "unlimit_coredumps", |
| defaultValue = "false", // NOTE: purely decorative, rc files are read by the client. |
| documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS, |
| effectTags = { |
| OptionEffectTag.BAZEL_INTERNAL_CONFIGURATION, |
| }, |
| help = "Raises the soft coredump limit to the hard limit to make coredumps of the server" |
| + " (including the JVM) and the client possible under common conditions. Stick this" |
| + " flag in your bazelrc once and forget about it so that you get coredumps when you" |
| + " actually encounter a condition that triggers them.") |
| public boolean unlimitCoredumps; |
| |
| @Option( |
| name = "incompatible_windows_style_arg_escaping", |
| defaultValue = "false", // NOTE: purely decorative, rc files are read by the client. |
| documentationCategory = OptionDocumentationCategory.EXECUTION_STRATEGY, |
| effectTags = { |
| OptionEffectTag.ACTION_COMMAND_LINES, |
| OptionEffectTag.EXECUTION, |
| }, |
| metadataTags = { |
| OptionMetadataTag.INCOMPATIBLE_CHANGE, |
| OptionMetadataTag.TRIGGERED_BY_ALL_INCOMPATIBLE_CHANGES, |
| }, |
| help = |
| "On Linux/macOS/non-Windows: no-op. On Windows: if true, then subprocess arguments are" |
| + " escaped Windows-style. When false, the arguments are escaped Bash-style. The" |
| + " Bash-style is buggy, the Windows-style is correct. See" |
| + " https://github.com/bazelbuild/bazel/issues/7122") |
| public boolean windowsStyleArgEscaping; |
| } |
