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Add Integration Test for reproducible builds
Signed-off-by: Jorge Solórzano <jorsol@gmail.com>
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‎src/it/projects/reproducible/invoker.properties‎

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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with 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,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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invoker.goals = compile javadoc:jar

‎src/it/projects/reproducible/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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~ Licensed to the Apache Software Foundation (ASF) under one
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~ or more contributor license agreements. See the NOTICE file
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~ distributed with this work for additional information
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~ regarding copyright ownership. The ASF licenses this file
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~ to you under the Apache License, Version 2.0 (the
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~ "License"); you may not use this file except in compliance
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~ with 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,
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~ software distributed under the License is distributed on an
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~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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~ KIND, either express or implied. See the License for the
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~ specific language governing permissions and limitations
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~ under the License.
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-->
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>foo</groupId>
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<artifactId>bar</artifactId>
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<version>0.1.0-SNAPSHOT</version>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<maven.compiler.source>@maven.compiler.source@</maven.compiler.source>
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<maven.compiler.target>@maven.compiler.target@</maven.compiler.target>
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<project.build.outputTimestamp>2020-02-29T23:59:58Z</project.build.outputTimestamp>
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</properties>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-javadoc-plugin</artifactId>
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<version>@project.version@</version>
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</plugin>
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</plugins>
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</build>
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</project>

‎src/it/projects/reproducible/src/main/java/foo/Bar.java‎

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package foo;
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* Bar.
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*/
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public class Bar
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{
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/**
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* Print "Bar".
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*/
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public void run()
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{
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System.out.println( "Bar" );
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}
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}

‎src/it/projects/reproducible/verify.groovy‎

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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import java.nio.file.attribute.FileTime;
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import java.time.Instant;
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import java.util.jar.*;
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def target = new File( basedir, 'target' )
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assert target.isDirectory()
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def apidocs = new File( target, 'apidocs' )
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assert apidocs.isDirectory()
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def options = new File( apidocs, 'options' )
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assert options.isFile()
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assert options.text.contains( "'Copyright &#169; 2020. All rights reserved.'" )
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def artifact = new File( target, 'bar-0.1.0-SNAPSHOT-javadoc.jar' )
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assert artifact.isFile()
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// notimestamp in html files
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apidocs.eachFileRecurse
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{
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if ( it.name.endsWith( '.html' ) )
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{
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assert it.text =~ /<!-- Generated by javadoc (\(\d+\) )?-->/
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}
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}
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// Normalize to UTC
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long normalizeUTC( String timestamp )
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{
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long millis = Instant.parse( timestamp ).toEpochMilli()
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Calendar cal = Calendar.getInstance()
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cal.setTimeInMillis( millis )
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return millis - ( cal.get( Calendar.ZONE_OFFSET ) + cal.get( Calendar.DST_OFFSET ) )
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}
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JarFile jar = new JarFile( artifact )
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// All entries should have the same timestamp
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FileTime expectedTimestamp = FileTime.fromMillis( normalizeUTC( "2020-02-29T23:59:58Z" ) )
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def testTimestamp =
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{
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JarEntry entry -> assert expectedTimestamp.equals( entry.getLastModifiedTime() )
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}
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jar.stream().forEach( testTimestamp )
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jar.close()

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