# ArtifactHandler

@ServiceScope(value = Project::class)
interface ArtifactHandler

This class is for defining artifacts to be published and adding them to configurations. Creating publish artifacts does not mean to create an archive. What is created is a domain object which represents a file to be published and information on how it should be published (e.g. the name).

To create an publish artifact and assign it to a configuration you can use the following syntax:

`<configurationName> <artifact-notation>, <artifact-notation> ...` or `<configurationName> <artifact-notation> { ... some code to configure the artifact }`

The notation can be one of the following types:

- PublishArtifact.
- org.gradle.api.tasks.bundling.AbstractArchiveTask. The information for publishing the artifact is extracted from the archive task (e.g. name, extension, ...). The task will be executed if the artifact is required.
- A org.gradle.api.file.RegularFile or org.gradle.api.file.Directory.
- A org.gradle.api.provider.Provider of java.io.File, org.gradle.api.file.RegularFile, org.gradle.api.file.Directory or org.gradle.api.Task, with the limitation that the latter has to define a single file output property. The information for publishing the artifact is extracted from the file or directory name. When the provider represents an output of a particular task, that task will be executed if the artifact is required.
- java.io.File. The information for publishing the artifact is extracted from the file name.
- java.util.Map. The map should contain a 'file' key. This is converted to an artifact as described above. You can also specify other properties of the artifact using entries in the map.

In each case, a ConfigurablePublishArtifact instance is created for the artifact, to allow artifact properties to be configured. You can also override the default values for artifact properties by using a closure to configure the properties of the artifact instance

## Examples

An example showing how to associate an archive task with a configuration via the artifact handler. This way the archive can be published or referred in other projects via the configuration.

    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 some schema
    }

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

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## Functions

add
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abstract fun add(configurationName: String, artifactNotation: Any): PublishArtifact
abstract fun add(configurationName: String, artifactNotation: Any, @DelegatesTo(value = ConfigurablePublishArtifact::class) configureClosure: Closure): PublishArtifact
abstract fun add(configurationName: String, artifactNotation: Any, configureAction: Action<in ConfigurablePublishArtifact>): PublishArtifact
Adds an artifact to the given configuration.
invoke
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operator fun ArtifactHandler.invoke(configuration: ArtifactHandlerScope.() -> Unit)

Configures the published artifacts for this project.