mirror of https://github.com/apache/lucene.git
276 lines
9.6 KiB
Groovy
276 lines
9.6 KiB
Groovy
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.nio.charset.CharacterCodingException;
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import java.nio.charset.CodingErrorAction;
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import java.nio.charset.StandardCharsets;
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import org.apache.rat.Defaults
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import org.apache.rat.document.impl.FileDocument
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import org.apache.rat.api.MetaData
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import javax.inject.Inject;
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import org.gradle.internal.logging.progress.ProgressLoggerFactory
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import org.gradle.internal.logging.progress.ProgressLogger
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buildscript {
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repositories {
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mavenCentral()
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}
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dependencies {
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classpath deps.rat
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}
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}
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def extensions = [
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'adoc',
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'bat',
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'cmd',
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'css',
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'g4',
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'gradle',
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'groovy',
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'html',
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'java',
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'jflex',
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'jj',
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'js',
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'json',
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'md',
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'mdtext',
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'pl',
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'policy',
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'properties',
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'py',
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'sh',
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'template',
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'txt',
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'vm',
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'xml',
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'xsl',
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]
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// Create source validation task local to each project
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allprojects {
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task validateSourcePatterns(type: ValidateSourcePatternsTask) { task ->
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group = 'Verification'
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description = 'Validate Source Patterns'
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sourceFiles = fileTree(projectDir) {
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extensions.each{
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include "**/*.${it}"
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}
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// Don't go into child projects (scanned separately).
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childProjects.keySet().each{
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exclude "${it}/**"
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}
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// default excludes.
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exclude '**/build/**'
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exclude '**/.idea/**'
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exclude '**/.gradle/**'
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if (project == rootProject) {
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// ourselves :-)
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exclude 'gradle/validation/validate-source-patterns.gradle'
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} else {
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// ignore txt files in source resources and tests.
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exclude 'src/**/*.txt'
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}
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}
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}
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// Add source validation to per-project checks as well.
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check.dependsOn validateSourcePatterns
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// Ensure validation runs prior to any compilation task. This also means
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// no executable code can leak out to other modules.
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tasks.withType(JavaCompile).configureEach {
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mustRunAfter validateSourcePatterns
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}
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}
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configure(project(':lucene:benchmark')) {
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project.tasks.withType(ValidateSourcePatternsTask) {
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sourceFiles.exclude 'data/**'
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sourceFiles.exclude 'work/**'
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// Known .txt offenders.
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sourceFiles.exclude '**/reuters.first20.lines.txt', '**/trecQRels.txt'
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}
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}
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@CacheableTask
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class ValidateSourcePatternsTask extends DefaultTask {
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private static final Object ratBug = new Object()
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private ProgressLoggerFactory progressLoggerFactory
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@InputFiles
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@PathSensitive(PathSensitivity.RELATIVE)
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@IgnoreEmptyDirectories
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FileTree sourceFiles
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@Inject
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ValidateSourcePatternsTask(ProgressLoggerFactory progressLoggerFactory) {
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this.progressLoggerFactory = progressLoggerFactory
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}
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@TaskAction
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public void check() {
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def invalidPatterns = [
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(~$/@author\b/$) : '@author javadoc tag',
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(~$/(?i)\bno(n|)commit\b/$) : 'nocommit',
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(~$/\bTOOD:/$) : 'TOOD instead TODO',
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(~$/\t/$) : 'tabs instead spaces',
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(~$/[\u202A-\u202E\u2066-\u2069]/$) : 'misuse of RTL/LTR (https://trojansource.codes)',
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(~$/\Q/**\E((?:\s)|(?:\*))*\Q{@inheritDoc}\E((?:\s)|(?:\*))*\Q*/\E/$) : '{@inheritDoc} on its own is unnecessary',
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(~$/\$$(?:LastChanged)?Date\b/$) : 'svn keyword',
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(~$/\$$(?:(?:LastChanged)?Revision|Rev)\b/$) : 'svn keyword',
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(~$/\$$(?:LastChangedBy|Author)\b/$) : 'svn keyword',
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(~$/\$$(?:Head)?URL\b/$) : 'svn keyword',
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(~$/\$$Id\b/$) : 'svn keyword',
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(~$/\$$Header\b/$) : 'svn keyword',
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(~$/\$$Source\b/$) : 'svn keyword',
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(~$/[\u200B\uFEFF]/$) : 'UTF-8 byte order mark or other zero-width codepoints',
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(~$/import java\.lang\.\w+;/$) : 'java.lang import is unnecessary',
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]
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// Python and others merrily use var declarations, this is a problem _only_ in Java at least for 8x where we're forbidding var declarations
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def invalidJavaOnlyPatterns = [
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(~$/\n\s*var\s+.*=.*<>.*/$) : 'Diamond operators should not be used with var',
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(~$/import\s+\w+(\.\w+)\.\*;/$) : 'Expand wildcard imports into explicit imports'
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]
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def violations = new TreeSet();
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def reportViolation = { f, name ->
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String msg = String.format(Locale.ROOT, "%s: %s", f, name)
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logger.error(msg)
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violations.add(msg)
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}
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def javadocsPattern = ~$/(?sm)^\Q/**\E(.*?)\Q*/\E/$;
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def javaCommentPattern = ~$/(?sm)^\Q/*\E(.*?)\Q*/\E/$;
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def xmlCommentPattern = ~$/(?sm)\Q<!--\E(.*?)\Q-->\E/$;
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def lineSplitter = ~$/[\r\n]+/$;
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def packagePattern = ~$/(?m)^\s*package\s+org\.apache.*;/$;
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def xmlTagPattern = ~$/(?m)\s*<[a-zA-Z].*/$;
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def validSPINameJavadocTag = ~$/(?s)\s*\*\s*@lucene\.spi\s+\{@value #NAME\}/$;
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def isLicense = { matcher, ratDocument ->
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// See LUCENE-10419 - rat is not thread safe.
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synchronized (ratBug) {
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def licenseMatcher = Defaults.createDefaultMatcher();
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licenseMatcher.reset()
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return lineSplitter.split(matcher.group(1)).any { licenseMatcher.match(ratDocument, it) }
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}
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}
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def checkLicenseHeaderPrecedes = { f, description, contentPattern, commentPattern, text, ratDocument ->
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def contentMatcher = contentPattern.matcher(text);
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if (contentMatcher.find()) {
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def contentStartPos = contentMatcher.start();
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def commentMatcher = commentPattern.matcher(text);
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while (commentMatcher.find()) {
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if (isLicense(commentMatcher, ratDocument)) {
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if (commentMatcher.start() < contentStartPos) {
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break; // This file is all good, so break loop: license header precedes 'description' definition
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} else {
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reportViolation(f, description+' declaration precedes license header');
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}
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}
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}
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}
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}
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ProgressLogger progress = progressLoggerFactory.newOperation(this.class)
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progress.start(this.name, this.name)
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def validatingDecoder = StandardCharsets.UTF_8.newDecoder()
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.onMalformedInput(CodingErrorAction.REPORT).onUnmappableCharacter(CodingErrorAction.REPORT)
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sourceFiles.each { f ->
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try {
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progress.progress("Scanning ${f.name}")
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logger.debug('Scanning source file: {}', f);
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String text
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try {
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validatingDecoder.reset()
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text = f.withInputStream {
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in -> new InputStreamReader(in, validatingDecoder).getText()
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}
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} catch (CharacterCodingException e) {
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reportViolation(f, "incorrect UTF-8 encoding [${e}]")
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return // we can't proceed for this file
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}
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invalidPatterns.each { pattern, name ->
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def matcher = pattern.matcher(text);
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if (matcher.find()) {
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reportViolation(f, String.format(Locale.ROOT, '%s [start=%d, end=%d]', name, matcher.start(), matcher.end()));
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}
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}
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def javadocsMatcher = javadocsPattern.matcher(text);
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def ratDocument = new FileDocument(f);
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while (javadocsMatcher.find()) {
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if (isLicense(javadocsMatcher, ratDocument)) {
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reportViolation(f, String.format(Locale.ENGLISH, 'javadoc-style license header [%s]',
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ratDocument.getMetaData().value(MetaData.RAT_URL_LICENSE_FAMILY_NAME)));
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}
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}
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if (f.name.endsWith('.java')) {
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// make sure that SPI names of all tokenizers/charfilters/tokenfilters are documented
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if (!f.name.contains("Test") && !f.name.contains("Mock") && !f.name.contains("Fake") && !text.contains("abstract class") &&
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!f.name.equals("TokenizerFactory.java") && !f.name.equals("CharFilterFactory.java") && !f.name.equals("TokenFilterFactory.java") &&
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(f.name.contains("TokenizerFactory") && text.contains("extends TokenizerFactory") ||
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f.name.contains("CharFilterFactory") && text.contains("extends CharFilterFactory") ||
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f.name.contains("FilterFactory") && text.contains("extends TokenFilterFactory"))) {
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if (!validSPINameJavadocTag.matcher(text).find()) {
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reportViolation(f, 'invalid spi name documentation')
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}
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}
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checkLicenseHeaderPrecedes(f, 'package', packagePattern, javaCommentPattern, text, ratDocument);
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invalidJavaOnlyPatterns.each { pattern, name ->
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def matcher = pattern.matcher(text);
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if (matcher.find()) {
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reportViolation(f, String.format(Locale.ROOT, '%s [start=%d, end=%d]', name, matcher.start(), matcher.end()));
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}
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}
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}
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if (f.name.endsWith('.xml')) {
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checkLicenseHeaderPrecedes(f, '<tag>', xmlTagPattern, xmlCommentPattern, text, ratDocument);
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}
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} catch (e) {
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e.printStackTrace()
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throw new GradleException("Unhandled exception while validating patterns on file: " + f, e)
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}
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}
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progress.completed()
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if (!violations.isEmpty()) {
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throw new GradleException(String.format(Locale.ENGLISH, 'Found %d source violation(s):\n %s',
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violations.size(),
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violations.join('\n ')))
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}
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}
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}
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