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An attempt to allow source > 8 for javac-based modules.
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Mar 26, 2024
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nbbuild/antsrc/org/netbeans/nbbuild/extlibs/SetupLimitModules.java
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| /* | ||
| * 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. | ||
| */ | ||
| package org.netbeans.nbbuild.extlibs; | ||
|
|
||
| import java.io.File; | ||
| import java.io.FileInputStream; | ||
| import java.io.FileOutputStream; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.io.OutputStream; | ||
| import java.io.OutputStreamWriter; | ||
| import java.io.Writer; | ||
| import java.lang.ProcessBuilder.Redirect; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.Properties; | ||
| import org.apache.tools.ant.BuildException; | ||
| import org.apache.tools.ant.Task; | ||
|
|
||
| /** | ||
| * | ||
| */ | ||
| public class SetupLimitModules extends Task { | ||
|
|
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| private String limitModulesProperty; | ||
| private String releaseVersion; | ||
| private String excludedModules; | ||
| private String nbjdkHome; | ||
| private File buildDir; | ||
| private File cacheFile; | ||
|
|
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| public void setLimitModulesProperty(String limitModulesProperty) { | ||
| this.limitModulesProperty = limitModulesProperty; | ||
| } | ||
|
|
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| public void setReleaseVersion(String releaseVersion) { | ||
| this.releaseVersion = releaseVersion; | ||
| } | ||
|
|
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| public void setExcludedModules(String excludedModules) { | ||
| this.excludedModules = excludedModules; | ||
| } | ||
|
|
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| public void setNbjdkHome(String nbjdkHome) { | ||
| this.nbjdkHome = nbjdkHome; | ||
| } | ||
|
|
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| public void setBuildDir(File buildDir) { | ||
| this.buildDir = buildDir; | ||
| } | ||
|
|
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| public void setCacheFile(File cacheFile) { | ||
| this.cacheFile = cacheFile; | ||
| } | ||
|
|
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| @Override | ||
| public void execute() throws BuildException { | ||
| try { | ||
| Properties cache = new Properties(); | ||
|
|
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| if (cacheFile != null && cacheFile.canRead()) { | ||
| try (InputStream in = new FileInputStream(cacheFile)) { | ||
| cache.load(in); | ||
| } | ||
| } | ||
|
|
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| String cacheKey = nbjdkHome + "-" + releaseVersion; | ||
| String limitedModules = cache.getProperty(cacheKey); | ||
|
|
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| if (limitedModules == null) { | ||
| Path executable = buildDir.toPath().resolve("LimitModulesFromExcludeModules.java"); | ||
| try (OutputStream out = Files.newOutputStream(executable); | ||
| Writer w = new OutputStreamWriter(out)) { | ||
| w.write(COMPUTE_LIMIT_MODULES); | ||
| } | ||
| List<String> command = new ArrayList<>(); | ||
| command.add(new File(new File(nbjdkHome, "bin"), "java").getAbsolutePath()); | ||
| command.add(executable.toFile().getAbsolutePath()); | ||
| command.add(releaseVersion); | ||
| command.addAll(Arrays.asList(excludedModules.split(","))); | ||
| Process p = new ProcessBuilder(command).redirectError(Redirect.INHERIT).start(); | ||
| p.waitFor(); | ||
| StringBuilder limitModulesText = new StringBuilder(); | ||
| InputStream in = p.getInputStream(); | ||
| int r; | ||
| while ((r = in.read()) != (-1)) { | ||
| limitModulesText.append((char) r); | ||
| } | ||
| limitedModules = limitModulesText.toString().trim(); | ||
| if (cacheFile != null) { | ||
| cache.put(cacheKey, limitedModules); | ||
|
|
||
| try (OutputStream out = new FileOutputStream(cacheFile)) { | ||
| cache.store(out, ""); | ||
| } | ||
| } | ||
| } | ||
|
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| getProject().setNewProperty(limitModulesProperty, limitedModules); | ||
| } catch (IOException | InterruptedException ex) { | ||
| throw new BuildException(ex); | ||
| } | ||
| } | ||
|
|
||
| private static final String COMPUTE_LIMIT_MODULES = | ||
| """ | ||
| import com.sun.source.util.JavacTask; | ||
| import java.io.IOException; | ||
| import java.net.URI; | ||
| import java.util.Arrays; | ||
| import java.util.Collections; | ||
| import java.util.HashSet; | ||
| import java.util.LinkedList; | ||
| import java.util.List; | ||
| import java.util.Set; | ||
| import java.util.stream.Collectors; | ||
| import javax.lang.model.element.ModuleElement; | ||
| import javax.lang.model.element.ModuleElement.RequiresDirective; | ||
| import javax.lang.model.util.ElementFilter; | ||
| import javax.tools.SimpleJavaFileObject; | ||
| import javax.tools.ToolProvider; | ||
| public class LimitModulesFromExcludeModules { | ||
| public static void main(String[] args) throws IOException { | ||
| String release = args[0]; | ||
| Set<String> excludedModules = new HashSet<>(); | ||
| Arrays.stream(args) | ||
| .skip(1) | ||
| .forEach(excludedModules::add); | ||
| JavacTask task = (JavacTask) | ||
| ToolProvider.getSystemJavaCompiler() | ||
| .getTask(null, null, null, List.of("--release", release), null, List.of(new JFOImpl(URI.create("mem://Test.java"), ""))); | ||
| task.analyze(); | ||
| String limitModules = | ||
| task.getElements() | ||
| .getAllModuleElements() | ||
| .stream() | ||
| .filter(m -> !m.getQualifiedName().toString().startsWith("jdk.internal.")) | ||
| .filter(m -> canInclude(m, excludedModules)) | ||
| .map(m -> m.getQualifiedName()) | ||
| .collect(Collectors.joining(",")); | ||
| System.out.println(limitModules); | ||
| } | ||
| private static boolean canInclude(ModuleElement m, Set<String> excludes) { | ||
| return Collections.disjoint(transitiveDependencies(m), excludes); | ||
| } | ||
| private static Set<String> transitiveDependencies(ModuleElement m) { | ||
| List<ModuleElement> todo = new LinkedList<>(); | ||
| Set<ModuleElement> seenModules = new HashSet<>(); | ||
| todo.add(m); | ||
| while (!todo.isEmpty()) { | ||
| ModuleElement current = todo.remove(0); | ||
| if (seenModules.add(current)) { | ||
| for (RequiresDirective rd : ElementFilter.requiresIn(current.getDirectives())) { | ||
| todo.add(rd.getDependency()); | ||
| } | ||
| } | ||
| } | ||
| return seenModules.stream() | ||
| .map(c -> c.getQualifiedName().toString()) | ||
| .collect(Collectors.toSet()); | ||
| } | ||
| private static final class JFOImpl extends SimpleJavaFileObject { | ||
| private final String content; | ||
| public JFOImpl(URI uri, String content) { | ||
| super(uri, Kind.SOURCE); | ||
| this.content = content; | ||
| } | ||
| @Override | ||
| public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException { | ||
| return content; | ||
| } | ||
| } | ||
| } | ||
| """; | ||
| } |
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