Package org.gradle.api

# Interface Project

All Superinterfaces:
  `Comparable<Project>`, `ExtensionAware`, `PluginAware`

public interface Project extends Comparable<Project>, ExtensionAware, PluginAware

This interface is the main API you use to interact with Gradle from your build file. From a `Project`, you have programmatic access to all of Gradle's features.

## Lifecycle

There is a one-to-one relationship between a `Project` and a `"build.gradle"` file. During build initialisation, Gradle assembles a `Project` object for each project which is to participate in the build, as follows:

- Create a `Settings` instance for the build.
- Evaluate the `"settings.gradle"` script, if present, against the `Settings` object to configure it.
- Use the configured `Settings` object to create the hierarchy of `Project` instances.
- Finally, evaluate each `Project` by executing its `"build.gradle"` file, if present, against the project. The projects are evaluated in breadth-wise order, such that a project is evaluated before its child projects. This order can be overridden by calling ``evaluationDependsOnChildren()`` or by adding an explicit evaluation dependency using ``evaluationDependsOn(String)``.

## Tasks

A project is essentially a collection of `Task` objects. Each task performs some basic piece of work, such as compiling classes, or running unit tests, or zipping up a WAR file. You add tasks to a project using one of the `create()` methods on `TaskContainer`, such as `TaskContainer.create(String)`. You can locate existing tasks using one of the lookup methods on `TaskContainer`, such as `TaskCollection.getByName(String)`.

## Dependencies

A project generally has a number of dependencies it needs in order to do its work. Also, a project generally produces a number of artifacts, which other projects can use. Those dependencies are grouped in configurations, and can be retrieved and uploaded from repositories. You use the `ConfigurationContainer` returned by `getConfigurations()` method to manage the configurations. The `DependencyHandler` returned by `getDependencies()` method to manage the dependencies. The `ArtifactHandler` returned by `getArtifacts()` method to manage the artifacts. The `RepositoryHandler` returned by `getRepositories()` method to manage the repositories.

## Multi-project Builds

Projects are arranged into a hierarchy of projects. A project has a name, and a fully qualified path which uniquely identifies it in the hierarchy.

## Plugins

Plugins can be used to modularise and reuse project configuration. Plugins can be applied using the `PluginAware.apply(java.util.Map)` method, or by using the `PluginDependenciesSpec` plugins script block.

## Dynamic Project Properties

Gradle executes the project's build file against the `Project` instance to configure the project. Any property or method which your script uses is delegated through to the associated `Project` object. This means, that you can use any of the methods and properties on the `Project` interface directly in your script.

For example:

     defaultTasks('some-task')  // Delegates to Project.defaultTasks()
     reportsDir = file('reports') // Delegates to Project.file() and the Java Plugin

You can also access the `Project` instance using the `project` property. This can make the script clearer in some cases. For example, you could use `project.name` rather than `name` to access the project's name.

A project has 5 property 'scopes', which it searches for properties. You can access these properties by name in your build file, or by calling the project's `property(String)` method. The scopes are:

- The `Project` object itself. This scope includes any property getters and setters declared by the `Project` implementation class. For example, `getRootProject()` is accessible as the `rootProject` property. The properties of this scope are readable or writable depending on the presence of the corresponding getter or setter method.
- The extra properties of the project. Each project maintains a map of extra properties, which can contain any arbitrary name -> value pair. Once defined, the properties of this scope are readable and writable. See extra properties for more details.
- The extensions added to the project by the plugins. Each extension is available as a read-only property with the same name as the extension.
- The tasks of the project. A task is accessible by using its name as a property name. The properties of this scope are read-only. For example, a task called `compile` is accessible as the `compile` property.
- The extra properties and convention properties are inherited from the project's parent, recursively up to the root project. The properties of this scope are read-only.

When reading a property, the project searches the above scopes in order, and returns the value from the first scope it finds the property in. If not found, an exception is thrown. See `property(String)` for more details.

When writing a property, the project searches the above scopes in order, and sets the property in the first scope it finds the property in. If not found, an exception is thrown. See `setProperty(String, Object)` for more details.

### Extra Properties

All extra properties must be defined through the "ext" namespace. Once an extra property has been defined, it is available directly on the owning object (in the below case the Project, Task, and sub-projects respectively) and can be read and updated. Only the initial declaration that needs to be done via the namespace.

     project.ext.prop1 = "foo"
     task doStuff {
         ext.prop2 = "bar"
     }
     subprojects { ext.${prop3} = false }

Reading extra properties is done through the "ext" or through the owning object.

     ext.isSnapshot = version.endsWith("-SNAPSHOT")
     if (isSnapshot) {
         // do snapshot stuff
     }

### Dynamic Methods

A project has 5 method 'scopes', which it searches for methods:

- The `Project` object itself.
- The build file. The project searches for a matching method declared in the build file.
- The extensions added to the project by the plugins. Each extension is available as a method which takes a closure or `Action` as a parameter.
- The tasks of the project. A method is added for each task, using the name of the task as the method name and taking a single closure or `Action` parameter. The method calls the `Task.configure(groovy.lang.Closure)` method for the associated task with the provided closure. For example, if the project has a task called `compile`, then a method is added with the following signature: `void compile(Closure configureClosure)`.
- The methods of the parent project, recursively up to the root project.
- A property of the project whose value is a closure. The closure is treated as a method and called with the provided parameters. The property is located as described above.

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `static final String`
  `DEFAULT_BUILD_DIR_NAME`
  The default build directory name.
  `static final String`
  `DEFAULT_BUILD_FILE`
  The default project build file name.
  `static final String`
  `DEFAULT_STATUS`
  `static final String`
  `DEFAULT_VERSION`
  `static final String`
  `GRADLE_PROPERTIES`
  `static final String`
  `PATH_SEPARATOR`
  The hierarchy separator for project and task path names.
  `static final String`
  `SYSTEM_PROP_PREFIX`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `String`
  `absoluteProjectPath(String path)`
  Converts a name to an absolute project path, resolving names relative to this project.
  `void`
  `afterEvaluate(Closure closure)`
  Adds a closure to call immediately after this project is evaluated.
  `void`
  `afterEvaluate(Action<? super Project> action)`
  Adds an action to call immediately after this project is evaluated.
  `void`
  `allprojects(Closure configureClosure)`
  Configures this project and each of its sub-projects.
  `void`
  `allprojects(Action<? super Project> action)`
  Configures this project and each of its sub-projects.
  `AntBuilder`
  `ant(Closure configureClosure)`
  Executes the given closure against the `AntBuilder` for this project.
  `AntBuilder`
  `ant(Action<? super AntBuilder> configureAction)`
  Executes the given action against the `AntBuilder` for this project.
  `void`
  `artifacts(Closure configureClosure)`
  Configures the published artifacts for this project.
  `void`
  `artifacts(Action<? super ArtifactHandler> configureAction)`
  Configures the published artifacts for this project.
  `void`
  `beforeEvaluate(Closure closure)`
  Adds a closure to call immediately before this project is evaluated.
  `void`
  `beforeEvaluate(Action<? super Project> action)`
  Adds an action to call immediately before this project is evaluated.
  `void`
  `buildscript(Closure configureClosure)`
  Configures the build script classpath for this project.
  `void`
  `components(Action<? super SoftwareComponentContainer> configuration)`
  Configures software components.
  `void`
  `configurations(Closure configureClosure)`
  Configures the dependency configurations for this project.
  `Iterable<?>`
  `configure(Iterable<?> objects, Closure configureClosure)`
  Configures a collection of objects via a closure.
  `<T> Iterable<T>`
  `configure(Iterable<T> objects, Action<? super T> configureAction)`
  Configures a collection of objects via an action.
  `Object`
  `configure(Object object, Closure configureClosure)`
  Configures an object via a closure, with the closure's delegate set to the supplied object.
  `<T> NamedDomainObjectContainer<T>`
  `container(Class<T> type)`
  Creates a container for managing named objects of the specified type.
  `<T> NamedDomainObjectContainer<T>`
  `container(Class<T> type, Closure factoryClosure)`
  Creates a container for managing named objects of the specified type.
  `<T> NamedDomainObjectContainer<T>`
  `container(Class<T> type, NamedDomainObjectFactory<T> factory)`
  Creates a container for managing named objects of the specified type.
  `WorkResult`
  `copy(Closure closure)`
  Copies the specified files.
  `WorkResult`
  `copy(Action<? super CopySpec> action)`
  Copies the specified files.
  `CopySpec`
  `copySpec()`
  Creates a `CopySpec` which can later be used to copy files or create an archive.
  `CopySpec`
  `copySpec(Closure closure)`
  Creates a `CopySpec` which can later be used to copy files or create an archive.
  `CopySpec`
  `copySpec(Action<? super CopySpec> action)`
  Creates a `CopySpec` which can later be used to copy files or create an archive.
  `AntBuilder`
  `createAntBuilder()`
  Creates an additional `AntBuilder` for this project.
  `void`
  `defaultTasks(String... defaultTasks)`
  Sets the names of the default tasks of this project.
  `boolean`
  `delete(@Nullable Object... paths)`
  Deletes files and directories.
  `WorkResult`
  `delete(Action<? super DeleteSpec> action)`
  Deletes the specified files.
  `void`
  `dependencies(Closure configureClosure)`
  Configures the dependencies for this project.
  `void`
  `dependencyLocking(Action<? super DependencyLockingHandler> configuration)`
  Configures dependency locking
  `int`
  `depthCompare(Project otherProject)`
  Compares the nesting level of this project with another project of the multi-project hierarchy.
  `Project`
  `evaluationDependsOn(String path)`
  Declares that this project has an evaluation dependency on the project with the given path.
  `void`
  `evaluationDependsOnChildren()`
  Declares that this project has an evaluation dependency on each of its child projects.
  `File`
  `file(Object path)`
  Resolves a file path relative to the project directory of this project.
  `File`
  `file(Object path, PathValidation validation)`
  Resolves a file path relative to the project directory of this project and validates it using the given scheme.
  `ConfigurableFileCollection`
  `files(@Nullable Object... paths)`
  Returns a `ConfigurableFileCollection` containing the given files.
  `ConfigurableFileCollection`
  `files(Object paths, Closure configureClosure)`
  Creates a new `ConfigurableFileCollection` using the given paths.
  `ConfigurableFileCollection`
  `files(Object paths, Action<? super ConfigurableFileCollection> configureAction)`
  Creates a new `ConfigurableFileCollection` using the given paths.
  `ConfigurableFileTree`
  `fileTree(Object baseDir)`
  Creates a new `ConfigurableFileTree` using the given base directory.
  `ConfigurableFileTree`
  `fileTree(Object baseDir, Closure configureClosure)`
  Creates a new `ConfigurableFileTree` using the given base directory.
  `ConfigurableFileTree`
  `fileTree(Object baseDir, Action<? super ConfigurableFileTree> configureAction)`
  Creates a new `ConfigurableFileTree` using the given base directory.
  `ConfigurableFileTree`
  `fileTree(Map<String,?> args)`
  Creates a new `ConfigurableFileTree` using the provided map of arguments.
  `@Nullable Project`
  `findProject(String path)`
  Locates a project by path.
  `@Nullable Object`
  `findProperty(String propertyName)`
  Returns the value of the given property or null if not found.
  `Set<Project>`
  `getAllprojects()`
  Returns the set containing this project and its subprojects.
  `Map<Project,Set<Task>>`
  `getAllTasks(boolean recursive)`
  Returns a map of the tasks contained in this project, and optionally its subprojects.
  `AntBuilder`
  `getAnt()`
  Returns the `AntBuilder` for this project.
  `ArtifactHandler`
  `getArtifacts()`
  Returns a handler for assigning artifacts produced by the project to configurations.
  `File`
  `getBuildDir()`
  Deprecated.
  Use `getLayout().getBuildDirectory()` instead
  `File`
  `getBuildFile()`
  The build script for this project.
  `ScriptHandler`
  `getBuildscript()`
  Returns the build script handler for this project.
  `String`
  `getBuildTreePath()`
  Returns a path to the project for the full build tree.
  `Map<String,Project>`
  `getChildProjects()`
  Returns the direct children of this project.
  `SoftwareComponentContainer`
  `getComponents()`
  Returns the software components produced by this project.
  `ConfigurationContainer`
  `getConfigurations()`
  Returns the configurations of this project.
  `List<String>`
  `getDefaultTasks()`
  Returns the names of the default tasks of this project.
  `DependencyHandler`
  `getDependencies()`
  Returns the dependency handler of this project.
  `DependencyFactory`
  `getDependencyFactory()`
  Provides access to methods to create various kinds of `Dependency` instances.
  `DependencyLockingHandler`
  `getDependencyLocking()`
  Provides access to configuring dependency locking
  `int`
  `getDepth()`
  Returns the nesting level of a project in a multi-project hierarchy.
  `@Nullable String`
  `getDescription()`
  Returns the description of this project, if any.
  `String`
  `getDisplayName()`
  Returns a human-consumable display name for this project.
  `ExtensionContainer`
  `getExtensions()`
  Allows adding DSL extensions to the project.
  `Gradle`
  `getGradle()`
  Returns the `Gradle` invocation which this project belongs to.
  `Object`
  `getGroup()`
  Returns the group of this project.
  `IsolatedProject`
  `getIsolated()`
  Returns an immutable view of this project, safe for use with isolated projects.
  `ProjectLayout`
  `getLayout()`
  Provides access to various important directories for this project.
  `Logger`
  `getLogger()`
  Returns the logger for this project.
  `LoggingManager`
  `getLogging()`
  Returns the `LoggingManager` which can be used to receive logging and to control the standard output/error capture for this project's build script.
  `String`
  `getName()`
  Returns the name of this project.
  `InputNormalizationHandler`
  `getNormalization()`
  Provides access to configuring input normalization.
  `ObjectFactory`
  `getObjects()`
  Provides access to methods to create various kinds of model objects.
  `@Nullable Project`
  `getParent()`
  Returns the parent project of this project, if any.
  `String`
  `getPath()`
  Returns the path of this project.
  `Project`
  `getProject()`
  Returns this project.
  `File`
  `getProjectDir()`
  The directory containing the project build file.
  `Map<String,? extends @Nullable Object>`
  `getProperties()`
  Returns the properties of this project.
  `ProviderFactory`
  `getProviders()`
  Provides access to methods to create various kinds of `Provider` instances.
  `RepositoryHandler`
  `getRepositories()`
  Returns a handler to create repositories which are used for retrieving dependencies and uploading artifacts produced by the project.
  `ResourceHandler`
  `getResources()`
  Provides access to resource-specific utility methods, for example factory methods that create various resources.
  `File`
  `getRootDir()`
  Returns the root directory of this project.
  `Project`
  `getRootProject()`
  Returns the root project for the hierarchy that this project belongs to.
  `ProjectState`
  `getState()`
  Returns the evaluation state of this project.
  `Object`
  `getStatus()`
  Returns the status of this project.
  `Set<Project>`
  `getSubprojects()`
  Returns the set containing the subprojects of this project.
  `TaskContainer`
  `getTasks()`
  Returns the tasks of this project.
  `Set<Task>`
  `getTasksByName(String name, boolean recursive)`
  Returns the set of tasks with the given name contained in this project, and optionally its subprojects.
  `Object`
  `getVersion()`
  Returns the version of this project.
  `boolean`
  `hasProperty(String propertyName)`
  Determines if this project has the given property.
  `File`
  `mkdir(Object path)`
  Creates a directory and returns a file pointing to it.
  `void`
  `normalization(Action<? super InputNormalizationHandler> configuration)`
  Configures input normalization.
  `Project`
  `project(String path)`
  Locates a project by path.
  `Project`
  `project(String path, Closure configureClosure)`
  Locates a project by path and configures it using the given closure.
  `Project`
  `project(String path, Action<? super Project> configureAction)`
  Locates a project by path and configures it using the given action.
  `@Nullable Object`
  `property(String propertyName)`
  Returns the value of the given property.
  `<T> Provider<T>`
  `provider(Callable<? extends @Nullable T> value)`
  Creates a `Provider` implementation based on the provided value.
  `String`
  `relativePath(Object path)`
  Returns the relative path from the project directory to the given path.
  `String`
  `relativeProjectPath(String path)`
  Converts a name to a project path relative to this project.
  `void`
  `repositories(Closure configureClosure)`
  Configures the repositories for this project.
  `void`
  `setBuildDir(File path)`
  Deprecated.
  Use `getLayout().getBuildDirectory()` and set the `DirectoryProperty`
  `void`
  `setBuildDir(Object path)`
  Deprecated.
  Use `getLayout().getBuildDirectory()` and set the `DirectoryProperty`
  `void`
  `setDefaultTasks(List<String> defaultTasks)`
  Sets the names of the default tasks of this project.
  `void`
  `setDescription(@Nullable String description)`
  Sets a description for this project.
  `void`
  `setGroup(Object group)`
  Sets the group of this project.
  `void`
  `setProperty(String name, @Nullable Object value)`
  Sets a property of this project.
  `void`
  `setStatus(Object status)`
  Sets the status of this project.
  `void`
  `setVersion(Object version)`
  Sets the version of this project.
  `void`
  `subprojects(Closure configureClosure)`
  Configures the sub-projects of this project.
  `void`
  `subprojects(Action<? super Project> action)`
  Configures the sub-projects of this project
  `WorkResult`
  `sync(Action<? super SyncSpec> action)`
  Synchronizes the contents of a destination directory with some source directories and files.
  `FileTree`
  `tarTree(Object tarPath)`
  Creates a new `FileTree` which contains the contents of the given TAR file.
  `Task`
  `task(String name)`
  Deprecated.
  Use `tasks.register(String)` instead
  `Task`
  `task(String name, Closure configureClosure)`
  Deprecated.
  Use `tasks.register(String, Action)` instead
  `Task`
  `task(String name, Action<? super Task> configureAction)`
  Deprecated.
  Use `tasks.register(String, Action)` instead
  `Task`
  `task(Map<String,?> args, String name)`
  Deprecated.
  Use a `tasks.register` variant instead
  `Task`
  `task(Map<String,?> args, String name, Closure configureClosure)`
  Deprecated.
  Use a `tasks.register` variant instead
  `URI`
  `uri(Object path)`
  Resolves a file path to a URI, relative to the project directory of this project.
  `FileTree`
  `zipTree(Object zipPath)`
  Creates a new `FileTree` which contains the contents of the given ZIP file.

  ### Methods inherited from interface java.lang.Comparable

  `compareTo`

  ### Methods inherited from interface org.gradle.api.plugins.PluginAware

  `apply, apply, apply, getPluginManager, getPlugins`

- ## Field Details

  - ### DEFAULT_BUILD_FILE

    static final String DEFAULT_BUILD_FILE
    The default project build file name.
    See Also:
      - Constant Field Values

  - ### PATH_SEPARATOR

    static final String PATH_SEPARATOR
    The hierarchy separator for project and task path names.
    See Also:
      - Constant Field Values

  - ### DEFAULT_BUILD_DIR_NAME

    static final String DEFAULT_BUILD_DIR_NAME
    The default build directory name.
    See Also:
      - Constant Field Values

  - ### GRADLE_PROPERTIES

    static final String GRADLE_PROPERTIES
    See Also:
      - Constant Field Values

  - ### SYSTEM_PROP_PREFIX

    static final String SYSTEM_PROP_PREFIX
    See Also:
      - Constant Field Values

  - ### DEFAULT_VERSION

    static final String DEFAULT_VERSION
    See Also:
      - Constant Field Values

  - ### DEFAULT_STATUS

    static final String DEFAULT_STATUS
    See Also:
      - Constant Field Values

- ## Method Details

  - ### getRootProject

    Project getRootProject()

    Returns the root project for the hierarchy that this project belongs to. In the case of a single-project build, this method returns this project.

    Returns:
      The root project. Never returns null.

  - ### getRootDir

    File getRootDir()

    Returns the root directory of this project. The root directory is the project directory of the root project.

    Returns:
      The root directory. Never returns null.

  - ### getBuildDir

    @Deprecated File getBuildDir()
    Deprecated.
    Use `getLayout().getBuildDirectory()` instead

    Returns the build directory of this project. The build directory is the directory which all artifacts are generated into. The default value for the build directory is `projectDir/build`

    Returns:
      The build directory. Never returns null.

  - ### setBuildDir

    @Deprecated void setBuildDir(File path)
    Deprecated.
    Use `getLayout().getBuildDirectory()` and set the `DirectoryProperty`

    Sets the build directory of this project. The build directory is the directory which all artifacts are generated into.

    Parameters:
      `path` - The build directory
    Since:
      4.0

  - ### setBuildDir

    @Deprecated void setBuildDir(Object path)
    Deprecated.
    Use `getLayout().getBuildDirectory()` and set the `DirectoryProperty`

    Sets the build directory of this project. The build directory is the directory which all artifacts are generated into. The path parameter is evaluated as described for `file(Object)`. This mean you can use, amongst other things, a relative or absolute path or File object to specify the build directory.

    Parameters:
      `path` - The build directory. This is evaluated as per `file(Object)`

  - ### getBuildFile

    File getBuildFile()
    The build script for this project.

    If the file exists, it will be evaluated against this project when this project is configured.

    Returns:
      the build script for this project.

  - ### getParent

    @Nullable Project getParent()

    Returns the parent project of this project, if any.

    Returns:
      The parent project, or null if this is the root project.

  - ### getName

    String getName()

    Returns the name of this project. The project's name is not necessarily unique within a project hierarchy. You should use the `getPath()` method for a unique identifier for the project. If the root project is unnamed and is located on a file system root it will have a randomly-generated name

    Returns:
      The name of this project. Never return null.

  - ### getDisplayName

    String getDisplayName()
    Returns a human-consumable display name for this project.

  - ### getDescription

    @Nullable String getDescription()
    Returns the description of this project, if any.
    Returns:
      the description. May return null.

  - ### setDescription

    void setDescription(@Nullable String description)
    Sets a description for this project.
    Parameters:
      `description` - The description of the project. Might be null.

  - ### getGroup

    Object getGroup()

    Returns the group of this project. Gradle always uses the `toString()` value of the group. The group defaults to the path with dots as separators.

    Returns:
      The group of this project. Never returns null.

  - ### setGroup

    void setGroup(Object group)

    Sets the group of this project.

    Parameters:
      `group` - The group of this project. Must not be null.

  - ### getVersion

    Object getVersion()

    Returns the version of this project. Gradle always uses the `toString()` value of the version. The version defaults to "unspecified".

    Returns:
      The version of this project. Never returns null.

  - ### setVersion

    void setVersion(Object version)

    Sets the version of this project.

    Parameters:
      `version` - The version of this project. Must not be null.

  - ### getStatus

    Object getStatus()

    Returns the status of this project. Gradle always uses the `toString()` value of the status. The status defaults to "release".

    The status of the project is only relevant, if you upload libraries together with a module descriptor. The status specified here, will be part of this module descriptor.

    Returns:
      The status of this project. Never returns null.

  - ### setStatus

    void setStatus(Object status)
    Sets the status of this project.
    Parameters:
      `status` - The status. Must not be null.

  - ### getChildProjects

    Map<String,Project> getChildProjects()

    Returns the direct children of this project.

    Returns:
      A map from child project name to child project. Returns an empty map if this project does not have any children.

  - ### setProperty

    void setProperty(String name, @Nullable Object value) throws MissingPropertyException

    Sets a property of this project. This method searches for a property with the given name in the following locations, and sets the property on the first location where it finds the property.

    1. The project object itself. For example, the `rootDir` project property.
    2. The project's extra properties.
    If the property is not found, a `MissingPropertyException` is thrown.
    Parameters:
      `name` - The name of the property
      `value` - The value of the property
    Throws:
      `MissingPropertyException`

  - ### getProject

    Project getProject()

    Returns this project. This method is useful in build files to explicitly access project properties and methods. For example, using `project.name` can express your intent better than using `name`. This method also allows you to access project properties from a scope where the property may be hidden, such as, for example, from a method or closure.

    Returns:
      This project. Never returns null.

  - ### getIsolated

    @Incubating IsolatedProject getIsolated()

    Returns an immutable view of this project, safe for use with isolated projects.

    Returns:
      This project as an `IsolatedProject`. Never returns null.
    Since:
      8.8

  - ### getAllprojects

    Set<Project> getAllprojects()

    Returns the set containing this project and its subprojects.

    Returns:
      The set of projects.

  - ### getSubprojects

    Set<Project> getSubprojects()

    Returns the set containing the subprojects of this project.

    Returns:
      The set of projects. Returns an empty set if this project has no subprojects.

  - ### task

    @Deprecated Task task(String name) throws InvalidUserDataException
    Deprecated.
    Use `tasks.register(String)` instead

    Creates a `Task` with the given name and adds it to this project. Calling this method is equivalent to calling `task(java.util.Map, String)` with an empty options map.

    After the task is added to the project, it is made available as a property of the project, so that you can reference the task by name in your build file. See properties for more details

    If a task with the given name already exists in this project, an exception is thrown.

    Parameters:
      `name` - The name of the task to be created
    Returns:
      The newly created task object
    Throws:
      `InvalidUserDataException` - If a task with the given name already exists in this project.

  - ### task

    @Deprecated Task task(Map<String,?> args, String name) throws InvalidUserDataException
    Deprecated.
    Use a `tasks.register` variant instead

    Creates a `Task` with the given name and adds it to this project. A map of creation options can be passed to this method to control how the task is created. The following options are available:

    Permitted map keys
    Option | Description | Default Value
    --- | --- | ---
    `"type"` | The class of the task to create. | `DefaultTask`
    `"overwrite"` | Replace an existing task? | `false`
    `"dependsOn"` | A task name or set of task names which this task depends on | `[]`
    `"action"` | A closure or `Action` to add to the task. | `null`
    `"description"` | A description of the task. | `null`
    `"group"` | A task group which this task belongs to. | `null`

    After the task is added to the project, it is made available as a property of the project, so that you can reference the task by name in your build file. See here for more details

    If a task with the given name already exists in this project and the `override` option is not set to true, an exception is thrown.

    Parameters:
      `args` - The task creation options.
      `name` - The name of the task to be created
    Returns:
      The newly created task object
    Throws:
      `InvalidUserDataException` - If a task with the given name already exists in this project.

  - ### task

    @Deprecated Task task(Map<String,?> args, String name, Closure configureClosure)
    Deprecated.
    Use a `tasks.register` variant instead

    Creates a `Task` with the given name and adds it to this project. Before the task is returned, the given closure is executed to configure the task. A map of creation options can be passed to this method to control how the task is created. See `task(java.util.Map, String)` for the available options.

    After the task is added to the project, it is made available as a property of the project, so that you can reference the task by name in your build file. See here for more details

    If a task with the given name already exists in this project and the `override` option is not set to true, an exception is thrown.

    Parameters:
      `args` - The task creation options.
      `name` - The name of the task to be created
      `configureClosure` - The closure to use to configure the created task.
    Returns:
      The newly created task object
    Throws:
      `InvalidUserDataException` - If a task with the given name already exists in this project.

  - ### task

    @Deprecated Task task(String name, @DelegatesTo(Task.class) Closure configureClosure)
    Deprecated.
    Use `tasks.register(String, Action)` instead

    Creates a `Task` with the given name and adds it to this project. Before the task is returned, the given closure is executed to configure the task.

    After the task is added to the project, it is made available as a property of the project, so that you can reference the task by name in your build file. See here for more details

    Parameters:
      `name` - The name of the task to be created
      `configureClosure` - The closure to use to configure the created task.
    Returns:
      The newly created task object
    Throws:
      `InvalidUserDataException` - If a task with the given name already exists in this project.

  - ### task

    @Deprecated Task task(String name, Action<? super Task> configureAction)
    Deprecated.
    Use `tasks.register(String, Action)` instead

    Creates a `Task` with the given name and adds it to this project. Before the task is returned, the given action is executed to configure the task.

    After the task is added to the project, it is made available as a property of the project, so that you can reference the task by name in your build file. See here for more details

    Parameters:
      `name` - The name of the task to be created
      `configureAction` - The action to use to configure the created task.
    Returns:
      The newly created task object
    Throws:
      `InvalidUserDataException` - If a task with the given name already exists in this project.
    Since:
      4.10
    See Also:
      - `TaskContainer.create(String, Action)`

  - ### getPath

    String getPath()

    Returns the path of this project. The path is the fully qualified name of the project.

    Returns:
      The path. Never returns null.

  - ### getBuildTreePath

    @Incubating String getBuildTreePath()
    Returns a path to the project for the full build tree.
    Returns:
      The build tree path
    Since:
      8.3

  - ### getDefaultTasks

    List<String> getDefaultTasks()

    Returns the names of the default tasks of this project. These are used when no tasks names are provided when starting the build.

    Returns:
      The default task names. Returns an empty list if this project has no default tasks.

  - ### setDefaultTasks

    void setDefaultTasks(List<String> defaultTasks)

    Sets the names of the default tasks of this project. These are used when no tasks names are provided when starting the build.

    Parameters:
      `defaultTasks` - The default task names.

  - ### defaultTasks

    void defaultTasks(String... defaultTasks)

    Sets the names of the default tasks of this project. These are used when no tasks names are provided when starting the build.

    Parameters:
      `defaultTasks` - The default task names.

  - ### evaluationDependsOn

    Project evaluationDependsOn(String path) throws UnknownProjectException

    Declares that this project has an evaluation dependency on the project with the given path.

    Parameters:
      `path` - The path of the project which this project depends on.
    Returns:
      The project which this project depends on.
    Throws:
      `UnknownProjectException` - If no project with the given path exists.

  - ### evaluationDependsOnChildren

    void evaluationDependsOnChildren()

    Declares that this project has an evaluation dependency on each of its child projects.

  - ### findProject

    @Nullable Project findProject(String path)

    Locates a project by path. If the path is relative, it is interpreted relative to this project.

    Parameters:
      `path` - The path.
    Returns:
      The project with the given path. Returns null if no such project exists.

  - ### project

    Project project(String path) throws UnknownProjectException

    Locates a project by path. If the path is relative, it is interpreted relative to this project.

    Parameters:
      `path` - The path.
    Returns:
      The project with the given path. Never returns null.
    Throws:
      `UnknownProjectException` - If no project with the given path exists.

  - ### project

    Project project(String path, @DelegatesTo(Project.class) Closure configureClosure)

    Locates a project by path and configures it using the given closure. If the path is relative, it is interpreted relative to this project. The target project is passed to the closure as the closure's delegate.

    Parameters:
      `path` - The path.
      `configureClosure` - The closure to use to configure the project.
    Returns:
      The project with the given path. Never returns null.
    Throws:
      `UnknownProjectException` - If no project with the given path exists.

  - ### project

    Project project(String path, Action<? super Project> configureAction)

    Locates a project by path and configures it using the given action. If the path is relative, it is interpreted relative to this project.

    Parameters:
      `path` - The path.
      `configureAction` - The action to use to configure the project.
    Returns:
      The project with the given path. Never returns null.
    Throws:
      `UnknownProjectException` - If no project with the given path exists.
    Since:
      3.4

  - ### getAllTasks

    Map<Project,Set<Task>> getAllTasks(boolean recursive)

    Returns a map of the tasks contained in this project, and optionally its subprojects.

    Parameters:
      `recursive` - If true, returns the tasks of this project and its subprojects. If false, returns the tasks of just this project.
    Returns:
      A map from project to a set of tasks.

  - ### getTasksByName

    Set<Task> getTasksByName(String name, boolean recursive)

    Returns the set of tasks with the given name contained in this project, and optionally its subprojects. NOTE: This is an expensive operation since it requires all projects to be configured.

    Parameters:
      `name` - The name of the task to locate.
      `recursive` - If true, returns the tasks of this project and its subprojects. If false, returns the tasks of just this project.
    Returns:
      The set of tasks. Returns an empty set if no such tasks exist in this project.

  - ### getProjectDir

    File getProjectDir()

    The directory containing the project build file.

    Returns:
      The project directory. Never returns null.

  - ### file

    File file(Object path)

    Resolves a file path relative to the project directory of this project. This method converts the supplied path based on its type:

    - A `CharSequence`, including `String` or `GString`. Interpreted relative to the project directory. A string that starts with `file:` is treated as a file URL.
    - A `File`. If the file is an absolute file, it is returned as is. Otherwise, the file's path is interpreted relative to the project directory.
    - A `Path`. The path must be associated with the default provider and is treated the same way as an instance of `File`.
    - A `URI` or `URL`. The URL's path is interpreted as the file path. Only `file:` URLs are supported.
    - A `Directory` or `RegularFile`.
    - A `Provider` of any supported type. The provider's value is resolved recursively.
    - A `TextResource`.
    - A Groovy `Closure` or Kotlin function that returns any supported type. The closure's return value is resolved recursively.
    - A `Callable` that returns any supported type. The callable's return value is resolved recursively.
    Parameters:
      `path` - The object to resolve as a File.
    Returns:
      The resolved file. Never returns null.

  - ### file

    File file(Object path, PathValidation validation) throws InvalidUserDataException

    Resolves a file path relative to the project directory of this project and validates it using the given scheme. See `PathValidation` for the list of possible validations.

    Parameters:
      `path` - An object which toString method value is interpreted as a relative path to the project directory.
      `validation` - The validation to perform on the file.
    Returns:
      The resolved file. Never returns null.
    Throws:
      `InvalidUserDataException` - When the file does not meet the given validation constraint.

  - ### uri

    URI uri(Object path)

    Resolves a file path to a URI, relative to the project directory of this project. Evaluates the provided path object as described for `file(Object)`, with the exception that any URI scheme is supported, not just 'file:' URIs.

    Parameters:
      `path` - The object to resolve as a URI.
    Returns:
      The resolved URI. Never returns null.

  - ### relativePath

    String relativePath(Object path)

    Returns the relative path from the project directory to the given path. The given path object is (logically) resolved as described for `file(Object)`, from which a relative path is calculated.

    Parameters:
      `path` - The path to convert to a relative path.
    Returns:
      The relative path. Never returns null.
    Throws:
      `IllegalArgumentException` - If the given path cannot be relativized against the project directory.

  - ### files

    ConfigurableFileCollection files(@Nullable Object... paths)

    Returns a `ConfigurableFileCollection` containing the given files. You can pass any of the following types to this method:

    - A `CharSequence`, including `String` or `GString`. Interpreted relative to the project directory, as per `file(Object)`. A string that starts with `file:` is treated as a file URL.
    - A `File`. Interpreted relative to the project directory, as per `file(Object)`.
    - A `Path`, as per `file(Object)`.
    - A `URI` or `URL`. The URL's path is interpreted as a file path. Only `file:` URLs are supported.
    - A `Directory` or `RegularFile`.
    - A `Collection`, `Iterable`, or an array that contains objects of any supported type. The elements of the collection are recursively converted to files.
    - A `FileCollection`. The contents of the collection are included in the returned collection.
    - A `FileTree` or `DirectoryTree`. The contents of the tree are included in the returned collection.
    - A `Provider` of any supported type. The provider's value is recursively converted to files. If the provider represents an output of a task, that task is executed if the file collection is used as an input to another task.
    - A `Callable` that returns any supported type. The return value of the `call()` method is recursively converted to files. A `null` return value is treated as an empty collection.
    - A Groovy `Closure` or Kotlin function that returns any of the types listed here. The return value of the closure is recursively converted to files. A `null` return value is treated as an empty collection.
    - A `Task`. Converted to the task's output files. The task is executed if the file collection is used as an input to another task.
    - A `TaskOutputs`. Converted to the output files the related task. The task is executed if the file collection is used as an input to another task.
    - Anything else is treated as an error.

    The returned file collection is lazy, so that the paths are evaluated only when the contents of the file collection are queried. The file collection is also live, so that it evaluates the above each time the contents of the collection is queried.

    The returned file collection maintains the iteration order of the supplied paths.

    The returned file collection maintains the details of the tasks that produce the files, so that these tasks are executed if this file collection is used as an input to some task.

    This method can also be used to create an empty collection, which can later be mutated to add elements.

    Parameters:
      `paths` - The paths to the files. May be empty. `null` values are ignored.
    Returns:
      The file collection. Never returns null.

  - ### files

    ConfigurableFileCollection files(Object paths, @DelegatesTo(ConfigurableFileCollection.class) Closure configureClosure)

    Creates a new `ConfigurableFileCollection` using the given paths. The paths are evaluated as per `files(Object...)`. The file collection is configured using the given closure. The file collection is passed to the closure as its delegate. Example:

         files "$buildDir/classes" {
             builtBy 'compile'
         }

    The returned file collection is lazy, so that the paths are evaluated only when the contents of the file collection are queried. The file collection is also live, so that it evaluates the above each time the contents of the collection is queried.

    Parameters:
      `paths` - The contents of the file collection. Evaluated as per `files(Object...)`.
      `configureClosure` - The closure to use to configure the file collection.
    Returns:
      the configured file tree. Never returns null.

  - ### files

    ConfigurableFileCollection files(Object paths, Action<? super ConfigurableFileCollection> configureAction)

    Creates a new `ConfigurableFileCollection` using the given paths. The paths are evaluated as per `files(Object...)`. The file collection is configured using the given action. Example:

         files "$buildDir/classes" {
             builtBy 'compile'
         }

    The returned file collection is lazy, so that the paths are evaluated only when the contents of the file collection are queried. The file collection is also live, so that it evaluates the above each time the contents of the collection is queried.

    Parameters:
      `paths` - The contents of the file collection. Evaluated as per `files(Object...)`.
      `configureAction` - The action to use to configure the file collection.
    Returns:
      the configured file tree. Never returns null.
    Since:
      3.5

  - ### fileTree

    ConfigurableFileTree fileTree(Object baseDir)

    Creates a new `ConfigurableFileTree` using the given base directory. The given baseDir path is evaluated as per `file(Object)`.

    The returned file tree is lazy, so that it scans for files only when the contents of the file tree are queried. The file tree is also live, so that it scans for files each time the contents of the file tree are queried.

         def myTree = fileTree("src")
         myTree.include "**/*.java"
         myTree.builtBy "someTask"

         task copy(type: Copy) {
            from myTree
         }

    The order of the files in a `FileTree` is not stable, even on a single computer.

    Parameters:
      `baseDir` - The base directory of the file tree. Evaluated as per `file(Object)`.
    Returns:
      the file tree. Never returns null.

  - ### fileTree

    ConfigurableFileTree fileTree(Object baseDir, @DelegatesTo(ConfigurableFileTree.class) Closure configureClosure)

    Creates a new `ConfigurableFileTree` using the given base directory. The given baseDir path is evaluated as per `file(Object)`. The closure will be used to configure the new file tree. The file tree is passed to the closure as its delegate. Example:

         def myTree = fileTree('src') {
            exclude '**/.data/**'
            builtBy 'someTask'
         }

         task copy(type: Copy) {
            from myTree
         }

    The returned file tree is lazy, so that it scans for files only when the contents of the file tree are queried. The file tree is also live, so that it scans for files each time the contents of the file tree are queried.

    The order of the files in a `FileTree` is not stable, even on a single computer.

    Parameters:
      `baseDir` - The base directory of the file tree. Evaluated as per `file(Object)`.
      `configureClosure` - Closure to configure the `ConfigurableFileTree` object.
    Returns:
      the configured file tree. Never returns null.

  - ### fileTree

    ConfigurableFileTree fileTree(Object baseDir, Action<? super ConfigurableFileTree> configureAction)

    Creates a new `ConfigurableFileTree` using the given base directory. The given baseDir path is evaluated as per `file(Object)`. The action will be used to configure the new file tree. Example:

         def myTree = fileTree('src') {
            exclude '**/.data/**'
            builtBy 'someTask'
         }

         task copy(type: Copy) {
            from myTree
         }

    The returned file tree is lazy, so that it scans for files only when the contents of the file tree are queried. The file tree is also live, so that it scans for files each time the contents of the file tree are queried.

    The order of the files in a `FileTree` is not stable, even on a single computer.

    Parameters:
      `baseDir` - The base directory of the file tree. Evaluated as per `file(Object)`.
      `configureAction` - Action to configure the `ConfigurableFileTree` object.
    Returns:
      the configured file tree. Never returns null.
    Since:
      3.5

  - ### fileTree

    ConfigurableFileTree fileTree(Map<String,?> args)

    Creates a new `ConfigurableFileTree` using the provided map of arguments. The map will be applied as properties on the new file tree. Example:

         def myTree = fileTree(dir:'src', excludes:['**/ignore/**', '**/.data/**'])

         task copy(type: Copy) {
             from myTree
         }

    The returned file tree is lazy, so that it scans for files only when the contents of the file tree are queried. The file tree is also live, so that it scans for files each time the contents of the file tree are queried.

    The order of the files in a `FileTree` is not stable, even on a single computer.

    Parameters:
      `args` - map of property assignments to `ConfigurableFileTree` object
    Returns:
      the configured file tree. Never returns null.

  - ### zipTree

    FileTree zipTree(Object zipPath)

    Creates a new `FileTree` which contains the contents of the given ZIP file. The given zipPath path is evaluated as per `file(Object)`. You can combine this method with the `copy(Action)` method to unzip a ZIP file.

    The returned file tree is lazy, so that it scans for files only when the contents of the file tree are queried. The file tree is also live, so that it scans for files each time the contents of the file tree are queried.

    Parameters:
      `zipPath` - The ZIP file. Evaluated as per `file(Object)`.
    Returns:
      the file tree. Never returns null.

  - ### tarTree

    FileTree tarTree(Object tarPath)
    Creates a new `FileTree` which contains the contents of the given TAR file. The given tarPath path can be:
    - an instance of `Resource`
    - any other object is evaluated as per `file(Object)`
    The returned file tree is lazy, so that it scans for files only when the contents of the file tree are queried. The file tree is also live, so that it scans for files each time the contents of the file tree are queried.

    Unless custom implementation of resources is passed, the tar tree attempts to guess the compression based on the file extension.

    You can combine this method with the `copy(Action)` method to untar a TAR file:

         task untar(type: Copy) {
           from tarTree('someCompressedTar.gzip')

           //tar tree attempts to guess the compression based on the file extension
           //however if you must specify the compression explicitly you can:
           from tarTree(resources.gzip('someTar.ext'))

           //in case you work with unconventionally compressed tars
           //you can provide your own implementation of a ReadableResource:
           //from tarTree(yourOwnResource as ReadableResource)

           into 'dest'
         }

    Parameters:
      `tarPath` - The TAR file or an instance of `Resource`.
    Returns:
      the file tree. Never returns null.

  - ### provider

    <T> Provider<T> provider(Callable<? extends @Nullable T> value)
    Creates a `Provider` implementation based on the provided value.

    The provider is live and will call the `Callable` each time its value is queried. The `Callable` may return `null`, in which case the provider is considered to have no value.

    #### Configuration Cache

    This provider is always computed and its value is cached by the Configuration Cache. If this provider is created at configuration time, the `Callable` may call configuration-time only APIs and capture objects of arbitrary types.

    This can be useful when you need to lazily compute some value to use at execution time based on configuration-time only data. For example, you can compute an archive name based on the name of the project:

           tasks.register("createArchive") {
               def archiveNameProvider = project.provider { project.name + ".jar" }
               doLast {
                   def archiveName = new File(archiveNameProvider.get())
                   // ... create the archive and put in its contents.
               }
           }

    Parameters:
      `value` - The `Callable` use to calculate the value.
    Returns:
      The provider. Never returns null.
    Since:
      4.0
    See Also:
      - `ProviderFactory.provider(Callable)`

  - ### getProviders

    ProviderFactory getProviders()
    Provides access to methods to create various kinds of `Provider` instances.
    Since:
      4.0

  - ### getObjects

    ObjectFactory getObjects()
    Provides access to methods to create various kinds of model objects.
    Since:
      4.0

  - ### getLayout

    ProjectLayout getLayout()
    Provides access to various important directories for this project.
    Since:
      4.1

  - ### mkdir

    File mkdir(Object path)
    Creates a directory and returns a file pointing to it.
    Parameters:
      `path` - The path for the directory to be created. Evaluated as per `file(Object)`.
    Returns:
      the created directory
    Throws:
      `InvalidUserDataException` - If the path points to an existing file.

  - ### delete

    boolean delete(@Nullable Object... paths)
    Deletes files and directories.

    This will not follow symlinks. If you need to follow symlinks too use `delete(Action)`.

    Parameters:
      `paths` - Any type of object accepted by `files(Object...)`
    Returns:
      true if anything got deleted, false otherwise

  - ### delete

    WorkResult delete(Action<? super DeleteSpec> action)
    Deletes the specified files. The given action is used to configure a `DeleteSpec`, which is then used to delete the files.

    Example:

         project.delete {
             delete 'somefile'
             followSymlinks = true
         }

    Parameters:
      `action` - Action to configure the DeleteSpec
    Returns:
      `WorkResult` that can be used to check if delete did any work.

  - ### absoluteProjectPath

    String absoluteProjectPath(String path)

    Converts a name to an absolute project path, resolving names relative to this project.

    Parameters:
      `path` - The path to convert.
    Returns:
      The absolute path.

  - ### relativeProjectPath

    String relativeProjectPath(String path)

    Converts a name to a project path relative to this project.

    Parameters:
      `path` - The path to convert.
    Returns:
      The relative path.

  - ### getAnt

    AntBuilder getAnt()

    Returns the `AntBuilder` for this project. You can use this in your build file to execute ant tasks. See example below.

         task printChecksum {
           doLast {
             ant {
               //using ant checksum task to store the file checksum in the checksumOut ant property
               checksum(property: 'checksumOut', file: 'someFile.txt')

               //we can refer to the ant property created by checksum task:
               println "The checksum is: " + checksumOut
             }

             //we can refer to the ant property later as well:
             println "I just love to print checksums: " + ant.checksumOut
           }
         }

    Consider following example of ant target:

         <target name='printChecksum'>
           <checksum property='checksumOut'>
             <fileset dir='.'>
               <include name='agile.txt'/>
             </fileset>
           </checksum>
           <echo>The checksum is: ${checksumOut}</echo>
         </target>

    Here's how it would look like in gradle. Observe how the ant XML is represented in groovy by the ant builder

         task printChecksum {
           doLast {
             ant {
               checksum(property: 'checksumOut') {
                 fileset(dir: '.') {
                   include name: 'agile1.txt'
                 }
               }
             }
             logger.lifecycle("The checksum is $ant.checksumOut")
           }
         }

    Returns:
      The `AntBuilder` for this project. Never returns null.

  - ### createAntBuilder

    AntBuilder createAntBuilder()

    Creates an additional `AntBuilder` for this project. You can use this in your build file to execute ant tasks.

    Returns:
      Creates an `AntBuilder` for this project. Never returns null.
    See Also:
      - `getAnt()`

  - ### ant

    AntBuilder ant(@DelegatesTo(AntBuilder.class) Closure configureClosure)

    Executes the given closure against the `AntBuilder` for this project. You can use this in your build file to execute ant tasks. The `AntBuild` is passed to the closure as the closure's delegate. See example in javadoc for `getAnt()`

    Parameters:
      `configureClosure` - The closure to execute against the `AntBuilder`.
    Returns:
      The `AntBuilder`. Never returns null.

  - ### ant

    AntBuilder ant(Action<? super AntBuilder> configureAction)

    Executes the given action against the `AntBuilder` for this project. You can use this in your build file to execute ant tasks. See example in javadoc for `getAnt()`

    Parameters:
      `configureAction` - The action to execute against the `AntBuilder`.
    Returns:
      The `AntBuilder`. Never returns null.
    Since:
      3.5

  - ### getConfigurations

    ConfigurationContainer getConfigurations()
    Returns the configurations of this project.

    Examples: See docs for `ConfigurationContainer`

    Returns:
      The configuration of this project.

  - ### configurations

    void configurations(Closure configureClosure)

    Configures the dependency configurations for this project.

    This method executes the given closure against the `ConfigurationContainer` for this project. The `ConfigurationContainer` is passed to the closure as the closure's delegate.

    Examples: See docs for `ConfigurationContainer`

    Parameters:
      `configureClosure` - the closure to use to configure the dependency configurations.

  - ### getArtifacts

    ArtifactHandler getArtifacts()
    Returns a handler for assigning artifacts produced by the project to configurations.

    Examples: See docs for `ArtifactHandler`

  - ### artifacts

    void artifacts(@DelegatesTo(ArtifactHandler.class) Closure configureClosure)

    Configures the published artifacts for this project.

    This method executes the given closure against the `ArtifactHandler` for this project. The `ArtifactHandler` is passed to the closure as the closure's delegate.

    Example:

         configurations {
           //declaring new configuration that will be used to associate with artifacts
           schema
         }

         task schemaJar(type: Jar) {
           //some imaginary task that creates a jar artifact with the schema
         }

         //associating the task that produces the artifact with the configuration
         artifacts {
           //configuration name and the task:
           schema schemaJar
         }

    Parameters:
      `configureClosure` - the closure to use to configure the published artifacts.

  - ### artifacts

    void artifacts(Action<? super ArtifactHandler> configureAction)

    Configures the published artifacts for this project.

    This method executes the given action against the `ArtifactHandler` for this project.

    Example:

         configurations {
           //declaring new configuration that will be used to associate with artifacts
           schema
         }

         task schemaJar(type: Jar) {
           //some imaginary task that creates a jar artifact with the schema
         }

         //associating the task that produces the artifact with the configuration
         artifacts {
           //configuration name and the task:
           schema schemaJar
         }

    Parameters:
      `configureAction` - the action to use to configure the published artifacts.
    Since:
      3.5

  - ### depthCompare

    int depthCompare(Project otherProject)

    Compares the nesting level of this project with another project of the multi-project hierarchy.

    Parameters:
      `otherProject` - The project to compare the nesting level with.
    Returns:
      a negative integer, zero, or a positive integer as this project has a nesting level less than, equal to, or greater than the specified object.
    See Also:
      - `getDepth()`

  - ### getDepth

    int getDepth()

    Returns the nesting level of a project in a multi-project hierarchy. For single project builds this is always 0. In a multi-project hierarchy 0 is returned for the root project.

  - ### getTasks

    TaskContainer getTasks()

    Returns the tasks of this project.

    Returns:
      the tasks of this project.

  - ### subprojects

    void subprojects(Action<? super Project> action)

    Configures the sub-projects of this project

    This method executes the given `Action` against the sub-projects of this project.

    Parameters:
      `action` - The action to execute.

  - ### subprojects

    void subprojects(@DelegatesTo(Project.class) Closure configureClosure)

    Configures the sub-projects of this project.

    This method executes the given closure against each of the sub-projects of this project. The target `Project` is passed to the closure as the closure's delegate.

    Parameters:
      `configureClosure` - The closure to execute.

  - ### allprojects

    void allprojects(Action<? super Project> action)

    Configures this project and each of its sub-projects.

    This method executes the given `Action` against this project and each of its sub-projects.

    Parameters:
      `action` - The action to execute.

  - ### allprojects

    void allprojects(@DelegatesTo(Project.class) Closure configureClosure)

    Configures this project and each of its sub-projects.

    This method executes the given closure against this project and its sub-projects. The target `Project` is passed to the closure as the closure's delegate.

    Parameters:
      `configureClosure` - The closure to execute.

  - ### beforeEvaluate

    void beforeEvaluate(Action<? super Project> action)

    Adds an action to call immediately before this project is evaluated.

    Passes the project to the action as a parameter. Actions passed to this method execute in the same order they were passed.

    If the project has already been evaluated, the action never executes.

    If you call this method within a `beforeEvaluate` action, the passed action never executes.

    Parameters:
      `action` - the action to execute.

  - ### afterEvaluate

    void afterEvaluate(Action<? super Project> action)

    Adds an action to call immediately after this project is evaluated.

    Passes the project to the action as a parameter. Actions passed to this method execute in the same order they were passed. A parent project may add an action to its child projects to further configure those projects based on their state after their build files run.

    If the project has already been evaluated, this method fails.

    If you call this method within an `afterEvaluate` action, the passed action executes after all previously added `afterEvaluate` actions finish executing.

    Parameters:
      `action` - the action to execute.

  - ### beforeEvaluate

    void beforeEvaluate(@DelegatesTo(Project.class) Closure closure)

    Adds a closure to call immediately before this project is evaluated.

    Parameters:
      `closure` - The closure to call.
    See Also:
      - `beforeEvaluate(Action)`

  - ### afterEvaluate

    void afterEvaluate(@DelegatesTo(Project.class) Closure closure)

    Adds a closure to call immediately after this project is evaluated.

    Parameters:
      `closure` - The closure to call.
    See Also:
      - `afterEvaluate(Action)`

  - ### hasProperty

    boolean hasProperty(String propertyName)

    Determines if this project has the given property. See here for details of the properties which are available for a project.

    Parameters:
      `propertyName` - The name of the property to locate.
    Returns:
      True if this project has the given property, false otherwise.

  - ### getProperties

    Map<String,? extends @Nullable Object> getProperties()

    Returns the properties of this project. See here for details of the properties which are available for a project.

    Returns:
      A map from property name to value.

  - ### property

    @Nullable Object property(String propertyName) throws MissingPropertyException

    Returns the value of the given property. This method locates a property as follows:

    1. If this project object has a property with the given name, return the value of the property.
    2. If this project has an extension with the given name, return the extension.
    3. If this project's convention object has a property with the given name, return the value of the property.
    4. If this project has an extra property with the given name, return the value of the property.
    5. If this project has a task with the given name, return the task.
    6. Search up through this project's ancestor projects for a convention property or extra property with the given name.
    7. If not found, a `MissingPropertyException` is thrown.
    Parameters:
      `propertyName` - The name of the property.
    Returns:
      The value of the property, possibly null.
    Throws:
      `MissingPropertyException` - When the given property is unknown.
    See Also:
      - `findProperty(String)`

  - ### findProperty

    @Nullable Object findProperty(String propertyName)

    Returns the value of the given property or null if not found. This method locates a property as follows:

    1. If this project object has a property with the given name, return the value of the property.
    2. If this project has an extension with the given name, return the extension.
    3. If this project's convention object has a property with the given name, return the value of the property.
    4. If this project has an extra property with the given name, return the value of the property.
    5. If this project has a task with the given name, return the task.
    6. Search up through this project's ancestor projects for a convention property or extra property with the given name.
    7. If not found, null value is returned.
    Parameters:
      `propertyName` - The name of the property.
    Returns:
      The value of the property, possibly null or null if not found.
    Since:
      2.13
    See Also:
      - `property(String)`

  - ### getLogger

    Logger getLogger()

    Returns the logger for this project. You can use this in your build file to write log messages.

    Returns:
      The logger. Never returns null.

  - ### getGradle

    Gradle getGradle()

    Returns the `Gradle` invocation which this project belongs to.

    Returns:
      The Gradle object. Never returns null.

  - ### getLogging

    LoggingManager getLogging()
    Returns the `LoggingManager` which can be used to receive logging and to control the standard output/error capture for this project's build script. By default, System.out is redirected to the Gradle logging system at the QUIET log level, and System.err is redirected at the ERROR log level.
    Returns:
      the LoggingManager. Never returns null.

  - ### configure

    Object configure(Object object, Closure configureClosure)

    Configures an object via a closure, with the closure's delegate set to the supplied object. This way you don't have to specify the context of a configuration statement multiple times.

    Instead of:

         MyType myType = new MyType()
         myType.doThis()
         myType.doThat()

    you can do:

         MyType myType = configure(new MyType()) {
             doThis()
             doThat()
         }

    The object being configured is also passed to the closure as a parameter, so you can access it explicitly if required:

         configure(someObj) { obj -> obj.doThis() }

    Parameters:
      `object` - The object to configure
      `configureClosure` - The closure with configure statements
    Returns:
      The configured object

  - ### configure

    Iterable<?> configure(Iterable<?> objects, Closure configureClosure)
    Configures a collection of objects via a closure. This is equivalent to calling `configure(Object, groovy.lang.Closure)` for each of the given objects.
    Parameters:
      `objects` - The objects to configure
      `configureClosure` - The closure with configure statements
    Returns:
      The configured objects.

  - ### configure

    <T> Iterable<T> configure(Iterable<T> objects, Action<? super T> configureAction)
    Configures a collection of objects via an action.
    Parameters:
      `objects` - The objects to configure
      `configureAction` - The action to apply to each object
    Returns:
      The configured objects.

  - ### getRepositories

    RepositoryHandler getRepositories()
    Returns a handler to create repositories which are used for retrieving dependencies and uploading artifacts produced by the project.
    Returns:
      the repository handler. Never returns null.

  - ### repositories

    void repositories(Closure configureClosure)

    Configures the repositories for this project.

    This method executes the given closure against the `RepositoryHandler` for this project. The `RepositoryHandler` is passed to the closure as the closure's delegate.

    Parameters:
      `configureClosure` - the closure to use to configure the repositories.

  - ### getDependencies

    DependencyHandler getDependencies()
    Returns the dependency handler of this project. The returned dependency handler instance can be used for adding new dependencies. For accessing already declared dependencies, the configurations can be used.

    Examples: See docs for `DependencyHandler`

    Returns:
      the dependency handler. Never returns null.
    See Also:
      - `getConfigurations()`

  - ### dependencies

    void dependencies(Closure configureClosure)

    Configures the dependencies for this project.

    This method executes the given closure against the `DependencyHandler` for this project. The `DependencyHandler` is passed to the closure as the closure's delegate.

    Examples: See docs for `DependencyHandler`

    Parameters:
      `configureClosure` - the closure to use to configure the dependencies.

  - ### getDependencyFactory

    @Incubating DependencyFactory getDependencyFactory()
    Provides access to methods to create various kinds of `Dependency` instances.
    Returns:
      the dependency factory. Never returns null.
    Since:
      7.6

  - ### getBuildscript

    ScriptHandler getBuildscript()
    Returns the build script handler for this project. You can use this handler to query details about the build script for this project, and manage the classpath used to compile and execute the project's build script.
    Returns:
      the classpath handler. Never returns null.

  - ### buildscript

    void buildscript(Closure configureClosure)

    Configures the build script classpath for this project.

    The given closure is executed against this project's `ScriptHandler`. The `ScriptHandler` is passed to the closure as the closure's delegate.

    Parameters:
      `configureClosure` - the closure to use to configure the build script classpath.

  - ### copy

    WorkResult copy(@DelegatesTo(CopySpec.class) Closure closure)
    Copies the specified files. The given closure is used to configure a `CopySpec`, which is then used to copy the files. Example:

         copy {
            from configurations.runtimeClasspath
            into 'build/deploy/lib'
         }

    Note that CopySpecs can be nested:

         copy {
            into 'build/webroot'
            exclude '**/.svn/**'
            from('src/main/webapp') {
               include '**/*.jsp'
               filter(ReplaceTokens, tokens:[copyright:'2009', version:'2.3.1'])
            }
            from('src/main/js') {
               include '**/*.js'
            }
         }

    Parameters:
      `closure` - Closure to configure the CopySpec
    Returns:
      `WorkResult` that can be used to check if the copy did any work.

  - ### copy

    WorkResult copy(Action<? super CopySpec> action)
    Copies the specified files. The given action is used to configure a `CopySpec`, which is then used to copy the files.
    Parameters:
      `action` - Action to configure the CopySpec
    Returns:
      `WorkResult` that can be used to check if the copy did any work.
    See Also:
      - `copy(Closure)`

  - ### copySpec

    CopySpec copySpec(@DelegatesTo(CopySpec.class) Closure closure)
    Creates a `CopySpec` which can later be used to copy files or create an archive. The given closure is used to configure the `CopySpec` before it is returned by this method.

         def baseSpec = copySpec {
            from "source"
            include "**/*.java"
         }

         task copy(type: Copy) {
            into "target"
            with baseSpec
         }

    Parameters:
      `closure` - Closure to configure the CopySpec
    Returns:
      The CopySpec

  - ### copySpec

    CopySpec copySpec(Action<? super CopySpec> action)
    Creates a `CopySpec` which can later be used to copy files or create an archive. The given action is used to configure the `CopySpec` before it is returned by this method.
    Parameters:
      `action` - Action to configure the CopySpec
    Returns:
      The CopySpec
    See Also:
      - `copySpec(Closure)`

  - ### copySpec

    CopySpec copySpec()
    Creates a `CopySpec` which can later be used to copy files or create an archive.
    Returns:
      a newly created copy spec

  - ### sync

    WorkResult sync(Action<? super SyncSpec> action)
    Synchronizes the contents of a destination directory with some source directories and files. The given action is used to configure a `SyncSpec`, which is then used to synchronize the files.

    This method is like the `copy(Action)` task, except the destination directory will only contain the files copied. All files that exist in the destination directory will be deleted before copying files, unless a preserve option is specified.

    Example:

         project.sync {
            from 'my/shared/dependencyDir'
            into 'build/deps/compile'
         }

    Note that you can preserve output that already exists in the destination directory:

         project.sync {
             from 'source'
             into 'dest'
             preserve {
                 include 'extraDir/**'
                 include 'dir1/**'
                 exclude 'dir1/extra.txt'
             }
         }

    Parameters:
      `action` - Action to configure the SyncSpec.
    Returns:
      `WorkResult` that can be used to check if the sync did any work.
    Since:
      4.0

  - ### getState

    ProjectState getState()
    Returns the evaluation state of this project. You can use this to access information about the evaluation of this project, such as whether it has failed.
    Returns:
      the project state. Never returns null.

  - ### container

    <T> NamedDomainObjectContainer<T> container(Class<T> type)

    Creates a container for managing named objects of the specified type. The specified type must have a public constructor which takes the name as a String parameter.

    All objects MUST expose their name as a bean property named "name". The name must be constant for the life of the object.

    Type Parameters:
      `T` - The type of objects for the container to contain.
    Parameters:
      `type` - The type of objects for the container to contain.
    Returns:
      The container.

  - ### container

    <T> NamedDomainObjectContainer<T> container(Class<T> type, NamedDomainObjectFactory<T> factory)

    Creates a container for managing named objects of the specified type. The given factory is used to create object instances.

    All objects MUST expose their name as a bean property named "name". The name must be constant for the life of the object.

    Type Parameters:
      `T` - The type of objects for the container to contain.
    Parameters:
      `type` - The type of objects for the container to contain.
      `factory` - The factory to use to create object instances.
    Returns:
      The container.

  - ### container

    <T> NamedDomainObjectContainer<T> container(Class<T> type, Closure factoryClosure)

    Creates a container for managing named objects of the specified type. The given closure is used to create object instances. The name of the instance to be created is passed as a parameter to the closure.

    All objects MUST expose their name as a bean property named "name". The name must be constant for the life of the object.

    Type Parameters:
      `T` - The type of objects for the container to contain.
    Parameters:
      `type` - The type of objects for the container to contain.
      `factoryClosure` - The closure to use to create object instances.
    Returns:
      The container.

  - ### getExtensions

    ExtensionContainer getExtensions()
    Allows adding DSL extensions to the project. Useful for plugin authors.
    Specified by:
      `getExtensions` in interface `ExtensionAware`
    Returns:
      Returned instance allows adding DSL extensions to the project

  - ### getResources

    ResourceHandler getResources()
    Provides access to resource-specific utility methods, for example factory methods that create various resources.
    Returns:
      Returned instance contains various resource-specific utility methods.

  - ### getComponents

    SoftwareComponentContainer getComponents()
    Returns the software components produced by this project.
    Returns:
      The components for this project.

  - ### components

    @Incubating void components(Action<? super SoftwareComponentContainer> configuration)
    Configures software components.
    Parameters:
      `configuration` - Action to configure the software components.
    Since:
      8.1

  - ### getNormalization

    InputNormalizationHandler getNormalization()
    Provides access to configuring input normalization.
    Since:
      4.0

  - ### normalization

    void normalization(Action<? super InputNormalizationHandler> configuration)
    Configures input normalization.
    Since:
      4.0

  - ### dependencyLocking

    void dependencyLocking(Action<? super DependencyLockingHandler> configuration)
    Configures dependency locking
    Since:
      4.8

  - ### getDependencyLocking

    DependencyLockingHandler getDependencyLocking()
    Provides access to configuring dependency locking
    Since:
      4.8