* build if those projects do not exist.
 */
public class ProjectActivation {
    private static class ProjectActivationSettings {
        /**
         * The selector of a project. This can be the project directory, [groupId]:[artifactId] or :[artifactId].
         */
        final String selector;

        /**
         * This describes how/when to active or deactivate the project.
         */

    }

    private MavenProject createMavenProject(String groupId, String artifactId) {
        MavenProject project = new MavenProject();
        project.setGroupId(groupId);
        project.setArtifactId(artifactId);
        return project;
    }

    static String stripAnsiCodes(String msg) {

pkg os/exec, func CommandContext(context.Context, string, ...string) *Cmd
pkg os/user, func LookupGroup(string) (*Group, error)
pkg os/user, func LookupGroupId(string) (*Group, error)
pkg os/user, method (*User) GroupIds() ([]string, error)
pkg os/user, method (UnknownGroupError) Error() string
pkg os/user, method (UnknownGroupIdError) Error() string
pkg os/user, type Group struct
pkg os/user, type Group struct, Gid string

                break;
            default:
                throw new IllegalArgumentException("Bad artifact coordinates " + coords
                        + ", expected format is <groupId>:<artifactId>[:<extension>[:<classifier>]]:<version>");
        }
        return s;
    }

                        project.getVersion(), artifact.getBaseVersion().asString())) {
            throw new IllegalArgumentException(
                    "The produced artifact must have the same groupId/artifactId/version than the project it is attached to. Expecting "
                            + project.getGroupId() + ":" + project.getArtifactId() + ":" + project.getVersion()

 *
 * @since 4.0.0
 * @see org.apache.maven.api.services.ProjectManager
 * @see org.apache.maven.api.services.ProjectBuilder
 */
@Experimental
public interface Project {

    /**
     * Returns the project groupId.
     */
    @Nonnull
    String getGroupId();

    /**
     * Returns the project artifactId.
     */
    @Nonnull
    String getArtifactId();

    /**
     * Returns the project version.

 *
 * <p>The <dfn>Dependency graph flattening</dfn> process in Maven involves reducing a complex,
 * multi-level dependency graph to a simpler list where only the most relevant version of each artifact
 * (based on groupId and artifactId) is retained, resolving conflicts and eliminating duplicates to ensure
 * that each dependency is included only once in the final build.</p>
 *

             * resolveCoreExtension method which uses a CoreExtension
             * object instead of a Plugin as this makes no sense.
             */
            Plugin plugin = Plugin.newBuilder()
                    .groupId(interpolator.apply(extension.getGroupId()))
                    .artifactId(interpolator.apply(extension.getArtifactId()))
                    .version(interpolator.apply(extension.getVersion()))
                    .build();

        pluginDescriptor.setDependencies(extractComponentDependencies(c));

        return pluginDescriptor;
    }

    private String extractGroupId(PlexusConfiguration c) {
        return c.getChild("groupId").getValue();
    }

    private String extractArtifactId(PlexusConfiguration c) {
        return c.getChild("artifactId").getValue();
    }

    private String extractVersion(PlexusConfiguration c) {

                    .longOpt("projects")
                    .desc(
                            "Comma-delimited list of specified reactor projects to build instead of all projects. A project can be specified by [groupId]:artifactId or by its relative path. Prefixing a project with ! excludes it, and ? marks it as optional")
                    .hasArg()
                    .build());
            options.addOption(Option.builder(ALSO_MAKE)