lucene/gradle/validation/validate-source-patterns.gr...

307 lines
11 KiB
Groovy

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
import org.apache.rat.Defaults
import org.apache.rat.document.impl.FileDocument
import org.apache.rat.api.MetaData
import javax.inject.Inject;
import org.gradle.internal.logging.progress.ProgressLoggerFactory
import org.gradle.internal.logging.progress.ProgressLogger
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath "org.apache.rat:apache-rat:${scriptDepVersions['apache-rat']}"
}
}
def extensions = [
'adoc',
'bat',
'cmd',
'css',
'g4',
'gradle',
'groovy',
'html',
'java',
'jflex',
'jj',
'js',
'json',
'md',
'mdtext',
'pl',
'policy',
'properties',
'py',
'sh',
'template',
'vm',
'xml',
'xsl',
]
// Create source validation task local for each project's files.
subprojects {
task validateSourcePatterns(type: ValidateSourcePatternsTask) { task ->
group = 'Verification'
description = 'Validate Source Patterns'
sourceFiles = fileTree(projectDir) {
extensions.each{
include "**/*.${it}"
}
// Don't go into child projects (scanned separately).
childProjects.keySet().each{
exclude "${it}/**"
}
// default excludes.
exclude 'build/**'
}
}
// Add source validation to per-project checks as well.
check.dependsOn validateSourcePatterns
}
configure(project(':lucene:benchmark')) {
project.tasks.withType(ValidateSourcePatternsTask) {
sourceFiles.exclude 'data/**'
}
}
configure(rootProject) {
task validateSourcePatterns(type: ValidateSourcePatternsTask) { task ->
group = 'Verification'
description = 'Validate Source Patterns'
sourceFiles = fileTree(projectDir) {
extensions.each{
include "**/*.${it}"
}
// We do not scan for *.txt by default (broken files in subprojects),
// but in root we can do this).
include '**/*.txt'
// Don't go into child projects (scanned separately).
childProjects.keySet().each{
exclude "${it}/**"
}
// default excludes.
exclude '**/build/**'
exclude 'dev-tools/missing-doclet/src/**/*.java' // <-- TODO: remove once we allow "var" on master
// ourselves :-)
exclude 'gradle/validation/validate-source-patterns.gradle'
}
}
check.dependsOn validateSourcePatterns
}
class ValidateSourcePatternsTask extends DefaultTask {
private ProgressLoggerFactory progressLoggerFactory
@InputFiles
FileTree sourceFiles
@Inject
ValidateSourcePatternsTask(ProgressLoggerFactory progressLoggerFactory) {
this.progressLoggerFactory = progressLoggerFactory
}
@TaskAction
public void check() {
def invalidPatterns = [
(~$/@author\b/$) : '@author javadoc tag',
(~$/(?i)\bno(n|)commit\b/$) : 'nocommit',
(~$/\bTOOD:/$) : 'TOOD instead TODO',
(~$/\t/$) : 'tabs instead spaces',
(~$/\Q/**\E((?:\s)|(?:\*))*\Q{@inheritDoc}\E((?:\s)|(?:\*))*\Q*/\E/$) : '{@inheritDoc} on its own is unnecessary',
(~$/\$$(?:LastChanged)?Date\b/$) : 'svn keyword',
(~$/\$$(?:(?:LastChanged)?Revision|Rev)\b/$) : 'svn keyword',
(~$/\$$(?:LastChangedBy|Author)\b/$) : 'svn keyword',
(~$/\$$(?:Head)?URL\b/$) : 'svn keyword',
(~$/\$$Id\b/$) : 'svn keyword',
(~$/\$$Header\b/$) : 'svn keyword',
(~$/\$$Source\b/$) : 'svn keyword',
(~$/^\uFEFF/$) : 'UTF-8 byte order mark',
(~$/import java\.lang\.\w+;/$) : 'java.lang import is unnecessary'
]
// Python and others merrily use var declarations, this is a problem _only_ in Java at least for 8x where we're forbidding var declarations
def invalidJavaOnlyPatterns = [
(~$/\n\s*var\s+.*=.*<>.*/$) : 'Diamond operators should not be used with var',
(~$/\n\s*var\s+/$) : 'var is not allowed in until we stop development on the 8x code line'
]
def found = 0;
def violations = new TreeSet();
def reportViolation = { f, name ->
logger.error('{}: {}', name, f);
violations.add(name);
found++;
}
def javadocsPattern = ~$/(?sm)^\Q/**\E(.*?)\Q*/\E/$;
def javaCommentPattern = ~$/(?sm)^\Q/*\E(.*?)\Q*/\E/$;
def xmlCommentPattern = ~$/(?sm)\Q<!--\E(.*?)\Q-->\E/$;
def lineSplitter = ~$/[\r\n]+/$;
def singleLineSplitter = ~$/\r?\n/$;
def licenseMatcher = Defaults.createDefaultMatcher();
def validLoggerPattern = ~$/(?s)\b(private\s|static\s|final\s){3}+\s*Logger\s+\p{javaJavaIdentifierStart}+\s+=\s+\QLoggerFactory.getLogger(MethodHandles.lookup().lookupClass());\E/$;
def validLoggerNamePattern = ~$/(?s)\b(private\s|static\s|final\s){3}+\s*Logger\s+log+\s+=\s+\QLoggerFactory.getLogger(MethodHandles.lookup().lookupClass());\E/$;
def packagePattern = ~$/(?m)^\s*package\s+org\.apache.*;/$;
def xmlTagPattern = ~$/(?m)\s*<[a-zA-Z].*/$;
def sourceHeaderPattern = ~$/\[source\b.*/$;
def blockBoundaryPattern = ~$/----\s*/$;
def blockTitlePattern = ~$/\..*/$;
def unescapedSymbolPattern = ~$/(?<=[^\\]|^)([-=]>|<[-=])/$; // SOLR-10883
def extendsLuceneTestCasePattern = ~$/public.*?class.*?extends.*?LuceneTestCase[^\n]*?\n/$;
def validSPINameJavadocTag = ~$/(?s)\s*\*\s*@lucene\.spi\s+\{@value #NAME\}/$;
def isLicense = { matcher, ratDocument ->
licenseMatcher.reset()
return lineSplitter.split(matcher.group(1)).any { licenseMatcher.match(ratDocument, it) }
}
def checkLicenseHeaderPrecedes = { f, description, contentPattern, commentPattern, text, ratDocument ->
def contentMatcher = contentPattern.matcher(text);
if (contentMatcher.find()) {
def contentStartPos = contentMatcher.start();
def commentMatcher = commentPattern.matcher(text);
while (commentMatcher.find()) {
if (isLicense(commentMatcher, ratDocument)) {
if (commentMatcher.start() < contentStartPos) {
break; // This file is all good, so break loop: license header precedes 'description' definition
} else {
reportViolation(f, description+' declaration precedes license header');
}
}
}
}
}
def checkMockitoAssume = { f, text ->
if (text.contains("mockito") && !text.contains("assumeWorkingMockito()")) {
reportViolation(f, 'File uses Mockito but has no assumeWorkingMockito() call')
}
}
def checkForUnescapedSymbolSubstitutions = { f, text ->
def inCodeBlock = false;
def underSourceHeader = false;
def lineNumber = 0;
singleLineSplitter.split(text).each {
++lineNumber;
if (underSourceHeader) { // This line is either a single source line, or the boundary of a code block
inCodeBlock = blockBoundaryPattern.matcher(it).matches();
if ( ! blockTitlePattern.matcher(it).matches()) {
underSourceHeader = false;
}
} else {
if (inCodeBlock) {
inCodeBlock = ! blockBoundaryPattern.matcher(it).matches();
} else {
underSourceHeader = sourceHeaderPattern.matcher(it).lookingAt();
if ( ! underSourceHeader) {
def unescapedSymbolMatcher = unescapedSymbolPattern.matcher(it);
if (unescapedSymbolMatcher.find()) {
reportViolation(f, 'Unescaped symbol "' + unescapedSymbolMatcher.group(1) + '" on line #' + lineNumber);
}
}
}
}
}
}
ProgressLogger progress = progressLoggerFactory.newOperation(this.class)
progress.start(this.name, this.name)
sourceFiles.each{ f ->
progress.progress("Scanning ${f.name}")
logger.debug('Scanning source file: {}', f);
def text = f.getText('UTF-8');
invalidPatterns.each{ pattern,name ->
if (pattern.matcher(text).find()) {
reportViolation(f, name);
}
}
def javadocsMatcher = javadocsPattern.matcher(text);
def ratDocument = new FileDocument(f);
while (javadocsMatcher.find()) {
if (isLicense(javadocsMatcher, ratDocument)) {
reportViolation(f, String.format(Locale.ENGLISH, 'javadoc-style license header [%s]',
ratDocument.getMetaData().value(MetaData.RAT_URL_LICENSE_FAMILY_NAME)));
}
}
if (f.name.endsWith('.java')) {
if (text.contains('org.slf4j.LoggerFactory')) {
if (!validLoggerPattern.matcher(text).find()) {
reportViolation(f, 'invalid logging pattern [not private static final, uses static class name]');
}
if (!validLoggerNamePattern.matcher(text).find()) {
reportViolation(f, 'invalid logger name [log, uses static class name, not specialized logger]')
}
}
// make sure that SPI names of all tokenizers/charfilters/tokenfilters are documented
if (!f.name.contains("Test") && !f.name.contains("Mock") && !f.name.contains("Fake") && !text.contains("abstract class") &&
!f.name.equals("TokenizerFactory.java") && !f.name.equals("CharFilterFactory.java") && !f.name.equals("TokenFilterFactory.java") &&
(f.name.contains("TokenizerFactory") && text.contains("extends TokenizerFactory") ||
f.name.contains("CharFilterFactory") && text.contains("extends CharFilterFactory") ||
f.name.contains("FilterFactory") && text.contains("extends TokenFilterFactory"))) {
if (!validSPINameJavadocTag.matcher(text).find()) {
reportViolation(f, 'invalid spi name documentation')
}
}
checkLicenseHeaderPrecedes(f, 'package', packagePattern, javaCommentPattern, text, ratDocument);
if (f.name.contains("Test")) {
checkMockitoAssume(f, text);
}
invalidJavaOnlyPatterns.each { pattern,name ->
if (pattern.matcher(text).find()) {
reportViolation(f, name);
}
}
}
if (f.name.endsWith('.xml')) {
checkLicenseHeaderPrecedes(f, '<tag>', xmlTagPattern, xmlCommentPattern, text, ratDocument);
}
if (f.name.endsWith('.adoc')) {
checkForUnescapedSymbolSubstitutions(f, text);
}
}
progress.completed()
if (found) {
throw new GradleException(String.format(Locale.ENGLISH, 'Found %d violations in source files (%s).',
found, violations.join(', ')));
}
}
}