Description

<dependency>
    <groupId>org.opentripplanner</groupId>
    <artifactId>otp-shaded</artifactId>
    <version>2.8.1</version>
</dependency>

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.opentripplanner</groupId>
        <artifactId>otp-root</artifactId>
        <version>2.8.1</version>
    </parent>
    <artifactId>otp-shaded</artifactId>
    <name>OpenTripPlanner - Shaded Jar</name>

    <properties>
        <skipShadeJar>false</skipShadeJar>
    </properties>

    <dependencies>
        <!-- project dependencies -->
        <dependency>
            <groupId>${project.groupId}</groupId>
            <artifactId>application</artifactId>
            <version>${project.version}</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <!--
                We want to create a standalone jar that can be run on the command line. Java does
                not really allow this - you cannot place jars inside of jars. You must either
                provide all the dependency jars to the user (usually lib/ under the directory
                containing the runnable jar) or explode all the jars and repackage them into a
                single jar. The problem is that while class files are nicely organized into the
                package namespace and should not collide, the META-INF directories of the jars will
                collide. Maven's standard assembly plugin does not account for this and will just
                clobber metadata. This then causes runtime errors, particularly with Spring.
                Instead, we use the shade plugin which has transformers that will for example
                append files of the same name rather than overwrite them in the combined JAR.
                -->
                <artifactId>maven-shade-plugin</artifactId>
                <configuration>
                    <skip>${skipShadeJar}</skip>
                    <shadedArtifactAttached>false</shadedArtifactAttached>
                    <createDependencyReducedPom>false</createDependencyReducedPom>
                    <filters>
                        <filter>
                            <!-- exclude signatures from merged JAR to avoid invalid signature messages -->
                            <artifact>*:*</artifact>
                            <excludes>
                                <exclude>META-INF/*.SF</exclude>
                                <exclude>META-INF/*.DSA</exclude>
                                <exclude>META-INF/*.RSA</exclude>
                            </excludes>
                        </filter>
                    </filters>
                    <transformers>
                        <transformer
                                implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
                        <transformer
                                implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                            <manifestEntries>
                                <Main-Class>org.opentripplanner.standalone.OTPMain</Main-Class>
                                <!-- The ImageIO lines allow some image reader plugins to work
                                     https://stackoverflow.com/questions/7051603/jai-vendorname-null#18495658 -->
                                <Specification-Title>Java Advanced Imaging Image I/O
                                    Tools
                                </Specification-Title>
                                <Specification-Version>1.1</Specification-Version>
                                <Specification-Vendor>Sun Microsystems, Inc.</Specification-Vendor>
                                <Implementation-Title>com.sun.media.imageio</Implementation-Title>
                                <Implementation-Version>1.1</Implementation-Version>
                                <Implementation-Vendor>Sun Microsystems, Inc.
                                </Implementation-Vendor>
                                <Extension-Name>com.sun.media.imageio</Extension-Name>
                            </manifestEntries>
                        </transformer>
                    </transformers>
                </configuration>
                <executions>
                    <execution>
                        <id>build-shaded-jar</id>
                        <goals><goal>shade</goal></goals>
                    </execution>
                </executions>
            </plugin>


            <!--
            DISABLED PLUGINS


            Turn off default plugins for package type jar. These plugins will normally run fine
            even when there is no source, but print warnings in the Maven console log.

            An alternative approach is to set "pom" as package-type and use the
            build-helper-maven-plugin to attach the shaded jar as the main artifact. This also
            has side effects. The biggest problem is that the published "pom.xml" does not indicate
            that the main artifact is a jar file - it has package type pom.
            -->

            <!--
            We would like to skip generating an empty jar file, but the maven-shade-plugin
            fails if we set "skipIfEmpty=true". Not sure if this is a bug or if the
            maven-shade-plugin needs the generated files/maven meta info from the jar plugin.
            <plugin>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                    <skipIfEmpty>true</skipIfEmpty>
                </configuration>
            </plugin>
            -->
            <plugin>
                <groupId>com.hubspot.maven.plugins</groupId>
                <artifactId>prettier-maven-plugin</artifactId>
                <configuration>
                    <skip>true</skip>
                </configuration>
            </plugin>
            <plugin>
                <groupId>com.google.cloud.tools</groupId>
                <artifactId>jib-maven-plugin</artifactId>
                <configuration>
                    <skip>true</skip>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>