* Implications for Subsystems

** Maven-Wagon

  Parts of Wagon will continue to function normally. These include:

  * The file wagon, provided the referenced location is on a local
    filesystem.

    It is not possible to determine whether a file-based location will
    be available except on a case-by-case basis (or a root-url by
    root-url basis). We may want to move the offline sensitivity entirely to

Quick Build
-------
If you want to bootstrap Maven, you'll need:
- Java 17+
- Maven 3.6.3 or later
- Run Maven, specifying a location into which the completed Maven distro should be installed:
    ```
    mvn -DdistributionTargetDir="$HOME/app/maven/apache-maven-4.0.x-SNAPSHOT" clean package
    ```


[home]: https://maven.apache.org/

        <artifactId>plexus-utils</artifactId>
        <version>1.0.4</version>
      </dependency>
    </dependencies>
  </dependencyManagement>
  <!-- TODO: point to ref location
    <distributionManagement>
      <site>
        <id>apache.website</id>
        <url>scp://people.apache.org/www/maven.apache.org/wagon/</url>
      </site>
    </distributionManagement>
  -->

                  <goal>sign</goal>
                </goals>
              </execution>
            </executions>
          </plugin>
          <!-- We want to deploy the artifact to a staging location for perusal -->
          <plugin>
            <inherited>true</inherited>
            <artifactId>maven-deploy-plugin</artifactId>
            <version>2.3</version>
            <configuration>

   </parameters>
  </plugin>
</plugins>
+-----+

Unified source directory

 Unified source directory structure that is analogous to the repository
 itself. This way locations of intermediary artifacts of a build would be
 in a known location. This would also help with developer setup i.e. getting
 new developers up and running. They could run a maven command and have all
 their source trees set up in the same way as their colleagues.

org.apache.maven.internal.impl.resolver.DefaultArtifactDescriptorReader
org.apache.maven.internal.impl.resolver.MavenVersionScheme
org.apache.maven.internal.impl.resolver.relocation.DistributionManagementArtifactRelocationSource
org.apache.maven.internal.impl.resolver.relocation.UserPropertiesArtifactRelocationSource

#*      *### MIT license contains date and copyright that makes the file specific to each artifact
#*      *##set ( $downloaded = $locator.getResourceAsFile( "licenses/${spdx}-${project.artifact.artifactId}-${project.artifact.version}.txt", "licenses/${licFile}" ) )
#*    *##else
#*      *##set ( $downloaded = $locator.getResourceAsFile( "licenses/${spdx}.txt", "licenses/${licFile}" ) )
#*    *##end

#*    *### add dependency info to output

if $cygwin || $mingw ; then
  [ -n "$JAVA_HOME" ] &&
    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
fi

if [ -n "$JAVA_HOME" ] ; then
  if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
    # IBM's JDK on AIX uses strange locations for the executables
    JAVACMD="$JAVA_HOME/jre/sh/java"
  else
    JAVACMD="$JAVA_HOME/bin/java"

    if [ ! -x "$JAVACMD" ] ; then

* installation
* activation
* update
* deactivation
* un-installation

When a plugin is installed we may want to check the license and make users agree. We may also want to unpack the given plugin in a particular location.