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// 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.devtools.common.options.Converter;
import com.google.devtools.common.options.Converters;
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 com.google.devtools.common.options.OptionsParsingException;
import java.util.List;
import java.util.Map;
/**
* Options that the Bazel client passes to server, which are then incorporated into the environment.
*
* <p>The rc file options are parsed in their own right and appear, if applicable, in the final
* value of the parsed options. The environment variables update the stored values in the
* CommandEnvironment. These options should never be accessed directly from this class after command
* environment initialization.
*/
public class ClientOptions extends OptionsBase {
/**
* A class representing a blazerc option. blazeRc is serial number of the rc file this option came
* from, option is the name of the option and value is its value (or null if not specified).
*/
public static class OptionOverride {
final int blazeRc;
final String command;
final String option;
public OptionOverride(int blazeRc, String command, String option) {
this.blazeRc = blazeRc;
this.command = command;
this.option = option;
}
@Override
public String toString() {
return String.format("%d:%s=%s", blazeRc, command, option);
}
}
/** Converter for --default_override. The format is: --default_override=blazerc:command=option. */
public static class OptionOverrideConverter implements Converter<OptionOverride> {
static final String ERROR_MESSAGE =
"option overrides must be in form rcfile:command=option, where rcfile is a nonzero integer";
public OptionOverrideConverter() {}
@Override
public OptionOverride convert(String input) throws OptionsParsingException {
int colonPos = input.indexOf(':');
int assignmentPos = input.indexOf('=');
if (colonPos < 0) {
throw new OptionsParsingException(ERROR_MESSAGE);
}
if (assignmentPos <= colonPos + 1) {
throw new OptionsParsingException(ERROR_MESSAGE);
}
int blazeRc;
try {
blazeRc = Integer.valueOf(input.substring(0, colonPos));
} catch (NumberFormatException e) {
throw new OptionsParsingException(ERROR_MESSAGE);
}
if (blazeRc < 0) {
throw new OptionsParsingException(ERROR_MESSAGE);
}
String command = input.substring(colonPos + 1, assignmentPos);
String option = input.substring(assignmentPos + 1);
return new OptionOverride(blazeRc, command, option);
}
@Override
public String getTypeDescription() {
return "blazerc option override";
}
}
@Option(
name = "client_env",
defaultValue = "",
documentationCategory = OptionDocumentationCategory.UNDOCUMENTED,
metadataTags = {OptionMetadataTag.HIDDEN},
effectTags = {OptionEffectTag.CHANGES_INPUTS},
converter = Converters.AssignmentConverter.class,
allowMultiple = true,
help = "A system-generated parameter which specifies the client's environment"
)
public List<Map.Entry<String, String>> clientEnv;
/**
* These are the actual default overrides. Each value is a tuple of (bazelrc index, command name,
* value). The blazerc index is a number used to find the blazerc in --rc_source's values.
*
* <p>For example: "--default_override=rc:build=--cpu=piii"
*/
@Option(
name = "default_override",
defaultValue = "",
allowMultiple = true,
documentationCategory = OptionDocumentationCategory.UNDOCUMENTED,
effectTags = {OptionEffectTag.CHANGES_INPUTS},
metadataTags = {OptionMetadataTag.HIDDEN},
converter = OptionOverrideConverter.class,
help = ""
)
public List<OptionOverride> optionsOverrides;
/** This is the filename that the Blaze client parsed. */
@Option(
name = "rc_source",
defaultValue = "",
allowMultiple = true,
documentationCategory = OptionDocumentationCategory.UNDOCUMENTED,
effectTags = {OptionEffectTag.CHANGES_INPUTS},
metadataTags = {OptionMetadataTag.HIDDEN},
help = ""
)
public List<String> rcSource;
}
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