| // Copyright 2022 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.commands; |
| package com.google.devtools.build.lib.runtime.commands; |
| |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| import com.google.common.base.Joiner; |
| import com.google.devtools.build.lib.query2.common.CommonQueryOptions; |
| import com.google.devtools.build.lib.query2.engine.QueryException; |
| import com.google.devtools.build.lib.runtime.CommandEnvironment; |
| import com.google.devtools.build.lib.server.FailureDetails.Query; |
| import com.google.devtools.build.lib.vfs.FileSystemUtils; |
| import com.google.devtools.build.lib.vfs.Path; |
| import com.google.devtools.common.options.OptionsParsingResult; |
| import java.io.IOException; |
| |
| /** |
| * Reads the query for query, cquery and aquery using the --query_file option or from the residue of |
| * the command line. |
| */ |
| public final class QueryOptionHelper { |
| |
| public static String readQuery( |
| CommonQueryOptions queryOptions, |
| OptionsParsingResult options, |
| CommandEnvironment env, |
| boolean allowEmptyQuery) |
| throws QueryException { |
| String query = ""; |
| if (!options.getResidue().isEmpty()) { |
| if (!queryOptions.queryFile.isEmpty()) { |
| throw new QueryException( |
| "Command-line query and --query_file cannot both be specified", |
| Query.Code.QUERY_FILE_WITH_COMMAND_LINE_EXPRESSION); |
| } |
| query = Joiner.on(' ').join(options.getResidue()); |
| } else if (!queryOptions.queryFile.isEmpty()) { |
| // Works for absolute or relative query file. |
| Path residuePath = env.getWorkingDirectory().getRelative(queryOptions.queryFile); |
| try { |
| query = new String(FileSystemUtils.readContent(residuePath), UTF_8); |
| } catch (IOException unused) { |
| throw new QueryException( |
| "I/O error reading from " + residuePath.getPathString(), |
| Query.Code.QUERY_FILE_READ_FAILURE); |
| } |
| } else { |
| // When querying for the state of Skyframe, it's possible to omit the query expression. |
| if (!allowEmptyQuery) { |
| throw new QueryException( |
| String.format( |
| "missing query expression. Type '%s help query' for syntax and help", |
| env.getRuntime().getProductName()), |
| Query.Code.COMMAND_LINE_EXPRESSION_MISSING); |
| } |
| } |
| return query; |
| } |
| |
| private QueryOptionHelper() {} |
| } |