compat/maven-embedder/src/main/java/org/apache/maven/cli/event/ExecutionEventLogger.java [281:477]:
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    @Override
    public void projectSkipped(ExecutionEvent event) {
        if (logger.isInfoEnabled()) {
            init();
            logger.info("");
            infoLine('-');
            String name = event.getProject().getName();
            infoMain("Skipping " + name);
            logger.info("{} was not built because a module it depends on failed to build.", name);

            infoLine('-');
        }
    }

    @Override
    public void projectStarted(ExecutionEvent event) {
        if (logger.isInfoEnabled()) {
            init();
            MavenProject project = event.getProject();

            logger.info("");

            // -------< groupId:artifactId >-------
            String projectKey = project.getGroupId() + ':' + project.getArtifactId();

            final String preHeader = "--< ";
            final String postHeader = " >--";

            final int headerLen = preHeader.length() + projectKey.length() + postHeader.length();

            String prefix = chars('-', Math.max(0, (lineLength - headerLen) / 2)) + preHeader;

            String suffix =
                    postHeader + chars('-', Math.max(0, lineLength - headerLen - prefix.length() + preHeader.length()));

            logger.info(
                    builder().strong(prefix).project(projectKey).strong(suffix).toString());

            // Building Project Name Version    [i/n]
            String building = "Building " + event.getProject().getName() + " "
                    + event.getProject().getVersion();

            if (totalProjects <= 1) {
                infoMain(building);
            } else {
                // display progress [i/n]
                int number;
                synchronized (this) {
                    number = ++currentVisitedProjectCount;
                }
                String progress = " [" + number + '/' + totalProjects + ']';

                int pad = lineLength - building.length() - progress.length();

                infoMain(building + ((pad > 0) ? chars(' ', pad) : "") + progress);
            }

            // path to pom.xml
            File currentPom = project.getFile();
            if (currentPom != null) {
                MavenSession session = event.getSession();
                Path current = currentPom.toPath().toAbsolutePath().normalize();
                Path topDirectory = session.getTopDirectory();
                if (topDirectory != null && current.startsWith(topDirectory)) {
                    current = topDirectory.relativize(current);
                }
                logger.info("  from " + current);
            }

            // ----------[ packaging ]----------
            prefix = chars('-', Math.max(0, (lineLength - project.getPackaging().length() - 4) / 2));
            suffix = chars('-', Math.max(0, lineLength - project.getPackaging().length() - 4 - prefix.length()));
            infoMain(prefix + "[ " + project.getPackaging() + " ]" + suffix);
        }
    }

    @Override
    public void mojoSkipped(ExecutionEvent event) {
        if (logger.isWarnEnabled()) {
            init();
            logger.warn(
                    "Goal '{}' requires online mode for execution but Maven is currently offline, skipping",
                    event.getMojoExecution().getGoal());
        }
    }

    /**
     * <pre>--- mojo-artifactId:version:goal (mojo-executionId) @ project-artifactId ---</pre>
     */
    @Override
    public void mojoStarted(ExecutionEvent event) {
        if (logger.isInfoEnabled()) {
            init();
            logger.info("");

            MessageBuilder buffer = builder().strong("--- ");
            append(buffer, event.getMojoExecution());
            append(buffer, event.getProject());
            buffer.strong(" ---");

            logger.info(buffer.toString());
        }
    }

    // CHECKSTYLE_OFF: LineLength
    /**
     * <pre>&gt;&gt;&gt; mojo-artifactId:version:goal (mojo-executionId) &gt; :forked-goal @ project-artifactId &gt;&gt;&gt;</pre>
     * <pre>&gt;&gt;&gt; mojo-artifactId:version:goal (mojo-executionId) &gt; [lifecycle]phase @ project-artifactId &gt;&gt;&gt;</pre>
     */
    // CHECKSTYLE_ON: LineLength
    @Override
    public void forkStarted(ExecutionEvent event) {
        if (logger.isInfoEnabled()) {
            init();
            logger.info("");

            MessageBuilder buffer = builder().strong(">>> ");
            append(buffer, event.getMojoExecution());
            buffer.strong(" > ");
            appendForkInfo(buffer, event.getMojoExecution().getMojoDescriptor());
            append(buffer, event.getProject());
            buffer.strong(" >>>");

            logger.info(buffer.toString());
        }
    }

    // CHECKSTYLE_OFF: LineLength
    /**
     * <pre>&lt;&lt;&lt; mojo-artifactId:version:goal (mojo-executionId) &lt; :forked-goal @ project-artifactId &lt;&lt;&lt;</pre>
     * <pre>&lt;&lt;&lt; mojo-artifactId:version:goal (mojo-executionId) &lt; [lifecycle]phase @ project-artifactId &lt;&lt;&lt;</pre>
     */
    // CHECKSTYLE_ON: LineLength
    @Override
    public void forkSucceeded(ExecutionEvent event) {
        if (logger.isInfoEnabled()) {
            init();
            logger.info("");

            MessageBuilder buffer = builder().strong("<<< ");
            append(buffer, event.getMojoExecution());
            buffer.strong(" < ");
            appendForkInfo(buffer, event.getMojoExecution().getMojoDescriptor());
            append(buffer, event.getProject());
            buffer.strong(" <<<");

            logger.info(buffer.toString());

            logger.info("");
        }
    }

    private void append(MessageBuilder buffer, MojoExecution me) {
        String prefix = me.getMojoDescriptor().getPluginDescriptor().getGoalPrefix();
        if (prefix == null || prefix.isEmpty()) {
            prefix = me.getGroupId() + ":" + me.getArtifactId();
        }
        buffer.mojo(prefix + ':' + me.getVersion() + ':' + me.getGoal());
        if (me.getExecutionId() != null) {
            buffer.a(' ').strong('(' + me.getExecutionId() + ')');
        }
    }

    private void appendForkInfo(MessageBuilder buffer, MojoDescriptor md) {
        StringBuilder buff = new StringBuilder();
        if (md.getExecutePhase() != null && !md.getExecutePhase().isEmpty()) {
            // forked phase
            if (md.getExecuteLifecycle() != null && !md.getExecuteLifecycle().isEmpty()) {
                buff.append('[');
                buff.append(md.getExecuteLifecycle());
                buff.append(']');
            }
            buff.append(md.getExecutePhase());
        } else {
            // forked goal
            buff.append(':');
            buff.append(md.getExecuteGoal());
        }
        buffer.strong(buff.toString());
    }

    private void append(MessageBuilder buffer, MavenProject project) {
        buffer.a(" @ ").project(project.getArtifactId());
    }

    @Override
    public void forkedProjectStarted(ExecutionEvent event) {
        if (logger.isInfoEnabled()
                && event.getMojoExecution().getForkedExecutions().size() > 1) {
            init();
            logger.info("");
            infoLine('>');

            infoMain("Forking " + event.getProject().getName() + " "
                    + event.getProject().getVersion());

            infoLine('>');
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impl/maven-cli/src/main/java/org/apache/maven/cling/event/ExecutionEventLogger.java [287:483]:
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    @Override
    public void projectSkipped(ExecutionEvent event) {
        if (logger.isInfoEnabled()) {
            init();
            logger.info("");
            infoLine('-');
            String name = event.getProject().getName();
            infoMain("Skipping " + name);
            logger.info("{} was not built because a module it depends on failed to build.", name);

            infoLine('-');
        }
    }

    @Override
    public void projectStarted(ExecutionEvent event) {
        if (logger.isInfoEnabled()) {
            init();
            MavenProject project = event.getProject();

            logger.info("");

            // -------< groupId:artifactId >-------
            String projectKey = project.getGroupId() + ':' + project.getArtifactId();

            final String preHeader = "--< ";
            final String postHeader = " >--";

            final int headerLen = preHeader.length() + projectKey.length() + postHeader.length();

            String prefix = chars('-', Math.max(0, (lineLength - headerLen) / 2)) + preHeader;

            String suffix =
                    postHeader + chars('-', Math.max(0, lineLength - headerLen - prefix.length() + preHeader.length()));

            logger.info(
                    builder().strong(prefix).project(projectKey).strong(suffix).toString());

            // Building Project Name Version    [i/n]
            String building = "Building " + event.getProject().getName() + " "
                    + event.getProject().getVersion();

            if (totalProjects <= 1) {
                infoMain(building);
            } else {
                // display progress [i/n]
                int number;
                synchronized (this) {
                    number = ++currentVisitedProjectCount;
                }
                String progress = " [" + number + '/' + totalProjects + ']';

                int pad = lineLength - building.length() - progress.length();

                infoMain(building + ((pad > 0) ? chars(' ', pad) : "") + progress);
            }

            // path to pom.xml
            File currentPom = project.getFile();
            if (currentPom != null) {
                MavenSession session = event.getSession();
                Path current = currentPom.toPath().toAbsolutePath().normalize();
                Path topDirectory = session.getTopDirectory();
                if (topDirectory != null && current.startsWith(topDirectory)) {
                    current = topDirectory.relativize(current);
                }
                logger.info("  from " + current);
            }

            // ----------[ packaging ]----------
            prefix = chars('-', Math.max(0, (lineLength - project.getPackaging().length() - 4) / 2));
            suffix = chars('-', Math.max(0, lineLength - project.getPackaging().length() - 4 - prefix.length()));
            infoMain(prefix + "[ " + project.getPackaging() + " ]" + suffix);
        }
    }

    @Override
    public void mojoSkipped(ExecutionEvent event) {
        if (logger.isWarnEnabled()) {
            init();
            logger.warn(
                    "Goal '{}' requires online mode for execution but Maven is currently offline, skipping",
                    event.getMojoExecution().getGoal());
        }
    }

    /**
     * <pre>--- mojo-artifactId:version:goal (mojo-executionId) @ project-artifactId ---</pre>
     */
    @Override
    public void mojoStarted(ExecutionEvent event) {
        if (logger.isInfoEnabled()) {
            init();
            logger.info("");

            MessageBuilder buffer = builder().strong("--- ");
            append(buffer, event.getMojoExecution());
            append(buffer, event.getProject());
            buffer.strong(" ---");

            logger.info(buffer.toString());
        }
    }

    // CHECKSTYLE_OFF: LineLength
    /**
     * <pre>&gt;&gt;&gt; mojo-artifactId:version:goal (mojo-executionId) &gt; :forked-goal @ project-artifactId &gt;&gt;&gt;</pre>
     * <pre>&gt;&gt;&gt; mojo-artifactId:version:goal (mojo-executionId) &gt; [lifecycle]phase @ project-artifactId &gt;&gt;&gt;</pre>
     */
    // CHECKSTYLE_ON: LineLength
    @Override
    public void forkStarted(ExecutionEvent event) {
        if (logger.isInfoEnabled()) {
            init();
            logger.info("");

            MessageBuilder buffer = builder().strong(">>> ");
            append(buffer, event.getMojoExecution());
            buffer.strong(" > ");
            appendForkInfo(buffer, event.getMojoExecution().getMojoDescriptor());
            append(buffer, event.getProject());
            buffer.strong(" >>>");

            logger.info(buffer.toString());
        }
    }

    // CHECKSTYLE_OFF: LineLength
    /**
     * <pre>&lt;&lt;&lt; mojo-artifactId:version:goal (mojo-executionId) &lt; :forked-goal @ project-artifactId &lt;&lt;&lt;</pre>
     * <pre>&lt;&lt;&lt; mojo-artifactId:version:goal (mojo-executionId) &lt; [lifecycle]phase @ project-artifactId &lt;&lt;&lt;</pre>
     */
    // CHECKSTYLE_ON: LineLength
    @Override
    public void forkSucceeded(ExecutionEvent event) {
        if (logger.isInfoEnabled()) {
            init();
            logger.info("");

            MessageBuilder buffer = builder().strong("<<< ");
            append(buffer, event.getMojoExecution());
            buffer.strong(" < ");
            appendForkInfo(buffer, event.getMojoExecution().getMojoDescriptor());
            append(buffer, event.getProject());
            buffer.strong(" <<<");

            logger.info(buffer.toString());

            logger.info("");
        }
    }

    private void append(MessageBuilder buffer, MojoExecution me) {
        String prefix = me.getMojoDescriptor().getPluginDescriptor().getGoalPrefix();
        if (prefix == null || prefix.isEmpty()) {
            prefix = me.getGroupId() + ":" + me.getArtifactId();
        }
        buffer.mojo(prefix + ':' + me.getVersion() + ':' + me.getGoal());
        if (me.getExecutionId() != null) {
            buffer.a(' ').strong('(' + me.getExecutionId() + ')');
        }
    }

    private void appendForkInfo(MessageBuilder buffer, MojoDescriptor md) {
        StringBuilder buff = new StringBuilder();
        if (md.getExecutePhase() != null && !md.getExecutePhase().isEmpty()) {
            // forked phase
            if (md.getExecuteLifecycle() != null && !md.getExecuteLifecycle().isEmpty()) {
                buff.append('[');
                buff.append(md.getExecuteLifecycle());
                buff.append(']');
            }
            buff.append(md.getExecutePhase());
        } else {
            // forked goal
            buff.append(':');
            buff.append(md.getExecuteGoal());
        }
        buffer.strong(buff.toString());
    }

    private void append(MessageBuilder buffer, MavenProject project) {
        buffer.a(" @ ").project(project.getArtifactId());
    }

    @Override
    public void forkedProjectStarted(ExecutionEvent event) {
        if (logger.isInfoEnabled()
                && event.getMojoExecution().getForkedExecutions().size() > 1) {
            init();
            logger.info("");
            infoLine('>');

            infoMain("Forking " + event.getProject().getName() + " "
                    + event.getProject().getVersion());

            infoLine('>');
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