}

    @Override
    public Optional<List<CoreExtensions>> coreExtensions() {
        return Optional.ofNullable(coreExtensions);
    }

    @Override
    public Optional<CIInfo> ciInfo() {
        return Optional.ofNullable(ciInfo);
    }

    public Optional<Options> options() {
        return Optional.ofNullable(options);
    }

    /**
     * Returns detected CI system, if any.
     *
     * @return an {@link Optional} containing the {@link CIInfo} collected from CI system. or empty if CI not
     * detected.
     */
    @Nonnull
    Optional<CIInfo> ciInfo();

    /**
     * Returns the options associated with this invocation request.
     *

import org.apache.maven.api.cli.cisupport.CIInfo;

/**
 * GitHub CI support.
 */
public class GithubCIDetector implements CIDetector {
    public static final String NAME = "GitHub";

    private static final String GITHUB_ACTIONS = "GITHUB_ACTIONS";
    private static final String RUNNER_DEBUG = "RUNNER_DEBUG";

    @Override
    public Optional<CIInfo> detectCI() {

import java.util.Optional;

import org.apache.maven.api.cli.cisupport.CIInfo;

/**
 * Travis CI support.
 */
public class TravisCIDetector implements CIDetector {
    public static final String NAME = "Travis";

    private static final String TRAVIS = "TRAVIS";
    private static final String TRAVIS_DEBUG_MODE = "TRAVIS_DEBUG_MODE";

    @Override
    public Optional<CIInfo> detectCI() {
        String ciEnv = System.getenv(TRAVIS);

import java.util.Optional;

import org.apache.maven.api.cli.cisupport.CIInfo;

/**
 * Circle CI support.
 */
public class CircleCIDetector implements CIDetector {
    public static final String NAME = "CircleCI";

    private static final String CIRCLECI = "CIRCLECI";

    @Override
    public Optional<CIInfo> detectCI() {
        String ciEnv = System.getenv(CIRCLECI);
        if ("true".equals(ciEnv)) {

import java.util.Optional;

import org.apache.maven.api.cli.cisupport.CIInfo;

/**
 * Jenkins CI support.
 */
public class JenkinsCIDetector implements CIDetector {
    public static final String NAME = "Jenkins";

    private static final String WORKSPACE = "WORKSPACE";

    @Override
    public Optional<CIInfo> detectCI() {
        String workspace = System.getenv(WORKSPACE);

import org.apache.maven.api.cli.cisupport.CIInfo;

/**
 * CI detector helper: it uses service discovery to discover {@link CIDetector}s. If resulting list has more than
 * one element, it will remove the {@link GenericCIDetector} result, assuming a more specific one is also present.
 */
public final class CIDetectorHelper {
    private CIDetectorHelper() {}

    public static List<CIInfo> detectCI() {

 * under the License.
 */
package org.apache.maven.cling.invoker.cisupport;

import java.util.List;

import org.apache.maven.api.cli.cisupport.CIInfo;

public class CIDetectorHelperRunner {
    public static void main(String[] args) {
        List<CIInfo> detect = CIDetectorHelper.detectCI();
        if (detect.isEmpty()) {
            System.out.print("NONE;");
        } else {

        public Path topDirectory;

        @Nullable
        public Path rootDirectory;

        @Nullable
        public List<CoreExtensions> extensions;

        @Nullable
        public CIInfo ciInfo;

        @Nullable
        public Options options;

        public Map<String, String> extraInterpolationSource() {
            Map<String, String> extra = new HashMap<>();

## Dependencies

### Added
- cyphar.com/go-pathrs: v0.2.1
- github.com/Masterminds/semver/v3: [v3.4.0](https://github.com/Masterminds/semver/tree/v3.4.0)
- github.com/gkampitakis/ciinfo: [v0.3.2](https://github.com/gkampitakis/ciinfo/tree/v0.3.2)
- github.com/gkampitakis/go-diff: [v1.3.2](https://github.com/gkampitakis/go-diff/tree/v1.3.2)
- github.com/gkampitakis/go-snaps: [v0.5.15](https://github.com/gkampitakis/go-snaps/tree/v0.5.15)