* @param language language of the files contained in the directory to add
     * @param directory the directory to add if not already present in the source
     *
     * @see #getEnabledSourceRoots(ProjectScope, Language)
     *
     * @since 4.0.0
     */
    public void addSourceRoot(@Nonnull ProjectScope scope, @Nonnull Language language, @Nonnull Path directory) {
        directory = getBaseDirectory()

    </dependency>
  </dependencies>

  <build>
    <resources>
      <resource>
        <directory>.</directory>
        <includes>
          <include>pom.xml</include>
          <include>src/**</include>
        </includes>
      </resource>
      <resource>
        <directory>src/main/resources</directory>
      </resource>
    </resources>
  </build>

    </dependency>
  </dependencies>

  <build>
    <resources>
      <resource>
        <directory>.</directory>
        <includes>
          <include>pom.xml</include>
          <include>src/**</include>
        </includes>
      </resource>
      <resource>
        <directory>src/main/resources</directory>
      </resource>
    </resources>
  </build>

        </field>
        <field>
          <name>release</name>
          <version>1.0.0+</version>
          <type>String</type>
          <description>What the last version added to the directory is, for the releases only ("groupId/artifactId" directory only)</description>
        </field>

    Lookup lookup();

    /**
     * Returns the current working directory for the Maven execution.
     * If not explicitly set, this value will be detected during parsing.
     *
     * @return the current working directory path, or null if not set
     */
    @Nullable
    Path cwd();

    /**
     * Returns the Maven home directory.
     * If not explicitly set, this value will be detected during parsing.

First, create a directory for your project.

What I normally do is that I create a directory named `code` inside my home/user directory.

And inside of that I create one directory per project.

<div class="termy">

```console
// Go to the home directory
$ cd
// Create a directory for all your code projects
$ mkdir code
// Enter into that code directory
$ cd code

  )

  /** Create a cache of at most [maxSize] bytes in [directory]. */
  constructor(directory: File, maxSize: Long) : this(
    FileSystem.SYSTEM,
    directory.toOkioPath(),
    maxSize,
  )

  internal val cache =
    DiskLruCache(
      fileSystem = fileSystem,
      directory = directory,
      appVersion = VERSION,
      valueCount = ENTRY_COUNT,
      maxSize = maxSize,
      taskRunner = taskRunner,

        return null;
    }

    @Override
    public Object getKey() {
        return "artifact " + artifact.getGroupId() + ":" + artifact.getArtifactId();
    }

    @Override
    public boolean isSnapshot() {
        // Don't consider the artifact's version in here, as this is stored in the directory above that
        return false;
    }

 | | <<<$\{project.artifactId\}>>>\
 | | <<<$\{project.build.directory\}>>> |
*----+------+------+
| <<<project.basedir>>>\
<<<pom.basedir>>> (<deprecated>)\
<<<basedir>>> (<deprecated>) | the directory containing the <<<pom.xml>>> file | <<<$\{project.basedir\}>>> |
*----+------+------+
| <<<project.baseUri>>>\
<<<pom.baseUri>>> (<deprecated>) | the directory containing the <<<pom.xml>>> file as URI | <<<$\{project.baseUri\}>>> |

    private String extension, directory, classifier, packaging, language;
    private boolean includesDependencies, addedToClasspath;

    public void setExtension(String extension) {
        this.extension = extension;
    }

    @Override
    public String getExtension() {
        return extension;
    }

    public void setDirectory(String directory) {
        this.directory = directory;
    }