private static final String[] BASEDIR_EXPRESSIONS = {"${basedir}", "${pom.basedir}", "${project.basedir}"};

    public void alignToBaseDirectory(Model model, File basedir) {
        if (basedir == null) {
            return;
        }

        Build build = model.getBuild();

        if (build != null) {
            build.setDirectory(alignToBaseDirectory(build.getDirectory(), basedir));

  <properties>
    <prop-outside>||${project.basedir}||</prop-outside>
  </properties>

  <build>
    <plugins>
      <plugin>
        <artifactId>plugin-all-profiles</artifactId>
        <executions>
          <execution>
            <id>Outside ||${project.basedir}||</id>
            <configuration>
              <plugin-all-profiles-out>Outside ||${project.basedir}||</plugin-all-profiles-out>
            </configuration>

        Path basedir = context.getProjectDirectory();

        if (basedir != null) {
            interpolator.addValueSource(new AbstractValueSource(false) {
                @Override
                public Object getValue(String expression) {
                    if ("basedir".equals(expression) || "project.basedir".equals(expression)) {
                        return basedir.toAbsolutePath().toString();

    <resources>
      <resource>
        <directory>${project.basedir}/src/main/resources</directory>
      </resource>
      <resource>
        <directory>${project.basedir}/src/main/resources-filtered</directory>
        <filtering>true</filtering>
      </resource>
    </resources>
    <testResources>
      <testResource>

%{snippet|id=jar|file=${project.basedir}/src/main/java/org/apache/maven/lifecycle/providers/packaging/JarLifecycleMappingProvider.java}

* Plugin bindings for <<<ejb>>> packaging

%{snippet|id=ejb|file=${project.basedir}/src/main/java/org/apache/maven/lifecycle/providers/packaging/EjbLifecycleMappingProvider.java}

* Plugin bindings for <<<maven-plugin>>> packaging

        }

        if (basedir == null) {
            basedir = System.getProperty("user.dir");
        }

        this.basedir = basedir;
    }

    @Override
    public Object evaluate(String expr) throws ExpressionEvaluationException {
        return evaluate(expr, null);
    }

    @Override
    @SuppressWarnings("checkstyle:methodlength")

    }

    public String getBasedir() {
        return basedir;
    }

    public String getProtocol() {
        return protocol;
    }

    public void setId(String id) {
        this.id = id;
    }

    public void setUrl(String url) {
        this.url = url;

        this.protocol = protocol(url);
        this.basedir = basedir(url);
    }

    // Path Utils

    /**

%{snippet|id=default|file=${project.basedir}/src/main/java/org/apache/maven/lifecycle/providers/DefaultLifecycleProvider.java}

* <<<clean>>> Lifecycle

  <<<clean>>> lifecycle phases are defined with their plugins bindings:

%{snippet|id=clean|file=${project.basedir}/src/main/java/org/apache/maven/lifecycle/providers/CleanLifecycleProvider.java}

* <<<site>>> Lifecycle

find_maven_basedir() {
(
  basedir=`find_file_argument_basedir "$@"`
  wdir="$basedir"
  while [ "$wdir" != '/' ] ; do
    if [ -d "$wdir"/.mvn ] ; then
      basedir=$wdir
      break
    fi
    wdir=`cd "$wdir/.."; pwd`
  done
  echo "$basedir"
)
}

find_file_argument_basedir() {
(
  basedir=`pwd`

  found_file_switch=0
  for arg in "$@"; do

                "Active all ||${project.basedir}||",
                "<plugin-all-profiles-in>Active all ||${project.basedir}||</plugin-all-profiles-in>");

        checkBuildPluginWithArtifactId(
                activeProfilePlugins,
                "only-active-profile",
                "Active only ||${project.basedir}||",
                "<plugin-in-active-profile-only>Active only ||${project.basedir}||</plugin-in-active-profile-only>");