# Class SigningExtension

java.lang.Object
org.gradle.plugins.signing.SigningExtension

public abstract class SigningExtension extends Object
The global signing configuration for a project.

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `static final String`
  `DEFAULT_CONFIGURATION_NAME`
  The name of the configuration that all signature artifacts will be placed into ("signatures")

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `SigningExtension(Project project)`
  Configures the signing settings for the given project.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `protected void`
  `addSignatureSpecConventions(SignatureSpec spec)`
  Adds conventions to the given spec, using this settings object's default signatory and signature type as the default signatory and signature type for the spec.
  `protected Object`
  `addSignaturesToConfiguration(Sign task, Configuration configuration)`
  `protected SignatoryProvider<?>`
  `createSignatoryProvider()`
  Provides the signatory provider.
  `protected SignatureTypeProvider`
  `createSignatureTypeProvider()`
  Provides the signature type provider.
  `protected SignOperation`
  `doSignOperation(Closure<?> setup)`
  `protected SignOperation`
  `doSignOperation(Action<SignOperation> setup)`
  `Configuration`
  `getConfiguration()`
  The configuration that signature artifacts are added to.
  `protected Configuration`
  `getDefaultConfiguration()`
  Provides the configuration that signature artifacts are added to.
  `final Project`
  `getProject()`
  `SignatoryProvider<?>`
  `getSignatories()`
  `Signatory`
  `getSignatory()`
  The signatory that will be used for signing when an explicit signatory has not been specified.
  `SignatureType`
  `getSignatureType()`
  The signature type that will be used for signing files when an explicit signature type has not been specified.
  `SignatureTypeProvider`
  `getSignatureTypes()`
  `boolean`
  `isRequired()`
  Whether this task should fail if no signatory or signature type are configured at generation time.
  `void`
  `setConfiguration(Configuration configuration)`
  `void`
  `setRequired(boolean required)`
  Whether this task should fail if no signatory or signature type are configured at generation time.
  `void`
  `setRequired(Object required)`
  Whether this task should fail if no signatory or signature type are configured at generation time.
  `void`
  `setSignatories(SignatoryProvider<?> signatories)`
  `void`
  `setSignatureTypes(SignatureTypeProvider signatureTypes)`
  `SignOperation`
  `sign(Closure<?> closure)`
  Creates a new `sign operation` using the given closure to configure it before executing it.
  `SignOperation`
  `sign(File... files)`
  Digitally signs the files, generating signature files alongside them.
  `SignOperation`
  `sign(String classifier, File... files)`
  Digitally signs the files, generating signature files alongside them.
  `SignOperation`
  `sign(Action<SignOperation> setup)`
  Creates a new `sign operation` using the given action to configure it before executing it.
  `List<Sign>`
  `sign(Configuration... configurations)`
  Creates signing tasks that sign `all artifacts` of the given configurations.
  `SignOperation`
  `sign(PublishArtifact... publishArtifacts)`
  Digitally signs the publish artifacts, generating signature files alongside them.
  `List<Sign>`
  `sign(DomainObjectCollection<Publication> publications)`
  Creates signing tasks that sign all publishable artifacts of the given publication collection.
  `List<Sign>`
  `sign(Publication... publications)`
  Creates signing tasks that sign all publishable artifacts of the given publications.
  `List<Sign>`
  `sign(Task... tasks)`
  Creates signing tasks that depend on and sign the "archive" produced by the given tasks.
  `SignatoryProvider<?>`
  `signatories(Closure<?> closure)`
  Configures the signatory provider (delegating to its `configure method`).
  `void`
  `signatories(Action<? super SignatoryProvider<?>> action)`
  Configures the signatory provider with the given action.
  `void`
  `useGpgCmd()`
  Use GnuPG agent to perform signing work.
  `void`
  `useInMemoryPgpKeys(@Nullable String defaultSecretKey, @Nullable String defaultPassword)`
  Use the supplied ascii-armored in-memory PGP secret key and password instead of reading it from a keyring.
  `void`
  `useInMemoryPgpKeys(@Nullable String defaultKeyId, @Nullable String defaultSecretKey, @Nullable String defaultPassword)`
  Use the supplied ascii-armored in-memory PGP secret key and password instead of reading it from a keyring.

  ### Methods inherited from class Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Field Details

  - ### DEFAULT_CONFIGURATION_NAME

    public static final String DEFAULT_CONFIGURATION_NAME
    The name of the configuration that all signature artifacts will be placed into ("signatures")
    See Also:
      - Constant Field Values

- ## Constructor Details

  - ### SigningExtension

    public SigningExtension(Project project)
    Configures the signing settings for the given project.

- ## Method Details

  - ### getProject

    public final Project getProject()

  - ### setRequired

    public void setRequired(boolean required)
    Whether this task should fail if no signatory or signature type are configured at generation time.
    Since:
      4.0

  - ### setRequired

    public void setRequired(Object required)
    Whether this task should fail if no signatory or signature type are configured at generation time. If `required` is a `Callable`, it will be stored and "called" on demand (i.e. when `isRequired()` is called) and the return value will be interpreting according to the Groovy Truth. For example:

        signing {
          required = { gradle.taskGraph.hasTask("publish") }
        }

    Because the task graph is not known until Gradle starts executing, we must use defer the decision. We can do this via using a `Closure` (which is a `Callable`). For any other type, the value will be stored and evaluated on demand according to the Groovy Truth.

        signing {
          required = false
        }

  - ### isRequired

    public boolean isRequired()
    Whether this task should fail if no signatory or signature type are configured at generation time.

    Defaults to `true`.

    See Also:
      - `setRequired(Object)`

  - ### getDefaultConfiguration

    protected Configuration getDefaultConfiguration()
    Provides the configuration that signature artifacts are added to. Called once during construction.

  - ### createSignatureTypeProvider

    protected SignatureTypeProvider createSignatureTypeProvider()
    Provides the signature type provider. Called once during construction.

  - ### createSignatoryProvider

    protected SignatoryProvider<?> createSignatoryProvider()
    Provides the signatory provider. Called once during construction.

  - ### signatories

    public SignatoryProvider<?> signatories(Closure<?> closure)
    Configures the signatory provider (delegating to its `configure method`).
    Parameters:
      `closure` - the signatory provider configuration DSL
    Returns:
      the configured signatory provider

  - ### signatories

    @Incubating public void signatories(Action<? super SignatoryProvider<?>> action)
    Configures the signatory provider with the given action.
    Parameters:
      `action` - the configuration action
    Since:
      9.3.0

  - ### getSignatory

    public Signatory getSignatory()
    The signatory that will be used for signing when an explicit signatory has not been specified.

    Delegates to the signatory provider's default signatory.

  - ### getSignatureType

    public SignatureType getSignatureType()
    The signature type that will be used for signing files when an explicit signature type has not been specified.

    Delegates to the signature type provider's default type.

  - ### setSignatureTypes

    public void setSignatureTypes(SignatureTypeProvider signatureTypes)

  - ### getSignatureTypes

    public SignatureTypeProvider getSignatureTypes()

  - ### setSignatories

    public void setSignatories(SignatoryProvider<?> signatories)

  - ### setConfiguration

    public void setConfiguration(Configuration configuration)

  - ### useGpgCmd

    public void useGpgCmd()
    Use GnuPG agent to perform signing work.
    Since:
      4.5

  - ### useInMemoryPgpKeys

    public void useInMemoryPgpKeys(@Nullable String defaultSecretKey, @Nullable String defaultPassword)
    Use the supplied ascii-armored in-memory PGP secret key and password instead of reading it from a keyring.

        signing {
            def secretKey = findProperty("mySigningKey")
            def password = findProperty("mySigningPassword")
            useInMemoryPgpKeys(secretKey, password)
        }

    Since:
      5.4

  - ### useInMemoryPgpKeys

    public void useInMemoryPgpKeys(@Nullable String defaultKeyId, @Nullable String defaultSecretKey, @Nullable String defaultPassword)
    Use the supplied ascii-armored in-memory PGP secret key and password instead of reading it from a keyring. In case a signing subkey is provided, keyId must be provided as well.

        signing {
            def keyId = findProperty("keyId")
            def secretKey = findProperty("mySigningKey")
            def password = findProperty("mySigningPassword")
            useInMemoryPgpKeys(keyId, secretKey, password)
        }

    Since:
      6.0

  - ### getConfiguration

    public Configuration getConfiguration()
    The configuration that signature artifacts are added to.

  - ### addSignatureSpecConventions

    protected void addSignatureSpecConventions(SignatureSpec spec)
    Adds conventions to the given spec, using this settings object's default signatory and signature type as the default signatory and signature type for the spec.

  - ### sign

    public List<Sign> sign(Task... tasks)
    Creates signing tasks that depend on and sign the "archive" produced by the given tasks.

    The created tasks will be named "sign<input task name capitalized>". That is, given a task with the name "jar" the created task will be named "signJar".

    If the task is not an `AbstractArchiveTask`, an `InvalidUserDataException` will be thrown.

    The signature artifact for the created task is added to the `for this settings object`.

    Parameters:
      `tasks` - The tasks whose archives are to be signed
    Returns:
      the created tasks.

  - ### sign

    public List<Sign> sign(Configuration... configurations)
    Creates signing tasks that sign `all artifacts` of the given configurations.

    The created tasks will be named "sign<configuration name capitalized>". That is, given a configuration with the name "conf" the created task will be named "signConf". The signature artifacts for the created tasks are added to the `configuration` for this settings object.

    Parameters:
      `configurations` - The configurations whose archives are to be signed
    Returns:
      the created tasks.

  - ### sign

    public List<Sign> sign(Publication... publications)
    Creates signing tasks that sign all publishable artifacts of the given publications.

    The created tasks will be named "sign<publication name capitalized>Publication". That is, given a publication with the name "mavenJava" the created task will be named "signMavenJavaPublication". The signature artifacts for the created tasks are added to the publishable artifacts of the given publications.

    Parameters:
      `publications` - The publications whose artifacts are to be signed
    Returns:
      the created tasks.
    Since:
      4.8

  - ### sign

    public List<Sign> sign(DomainObjectCollection<Publication> publications)
    Creates signing tasks that sign all publishable artifacts of the given publication collection.

    The created tasks will be named "sign<publication name capitalized>Publication". That is, given a publication with the name "mavenJava" the created task will be named "signMavenJavaPublication". The signature artifacts for the created tasks are added to the publishable artifacts of the given publications.

    Parameters:
      `publications` - The collection of publications whose artifacts are to be signed
    Returns:
      the created tasks.
    Since:
      4.8

  - ### addSignaturesToConfiguration

    protected Object addSignaturesToConfiguration(Sign task, Configuration configuration)

  - ### sign

    public SignOperation sign(PublishArtifact... publishArtifacts)
    Digitally signs the publish artifacts, generating signature files alongside them.

    The project's default signatory and default signature type from the `signing settings` will be used to generate the signature. The returned `sign operation` gives access to the created signature files.

    If there is no configured default signatory available, the sign operation will fail.

    Parameters:
      `publishArtifacts` - The publish artifacts to sign
    Returns:
      The executed `sign operation`

  - ### sign

    public SignOperation sign(File... files)
    Digitally signs the files, generating signature files alongside them.

    The project's default signatory and default signature type from the `signing settings` will be used to generate the signature. The returned `sign operation` gives access to the created signature files.

    If there is no configured default signatory available, the sign operation will fail.

    Parameters:
      `files` - The files to sign.
    Returns:
      The executed `sign operation`.

  - ### sign

    public SignOperation sign(String classifier, File... files)
    Digitally signs the files, generating signature files alongside them.

    The project's default signatory and default signature type from the `signing settings` will be used to generate the signature. The returned `sign operation` gives access to the created signature files.

    If there is no configured default signatory available, the sign operation will fail.

    Parameters:
      `classifier` - The classifier to assign to the created signature artifacts.
      `files` - The publish artifacts to sign.
    Returns:
      The executed `sign operation`.

  - ### sign

    public SignOperation sign(@DelegatesTo(SignOperation.class) Closure<?> closure)
    Creates a new `sign operation` using the given closure to configure it before executing it.

    The project's default signatory and default signature type from the `signing settings` will be used to generate the signature. The returned `sign operation` gives access to the created signature files.

    If there is no configured default signatory available (and one is not explicitly specified in this operation's configuration), the sign operation will fail.

    Parameters:
      `closure` - The configuration of the `sign operation`.
    Returns:
      The executed `sign operation`.

  - ### sign

    @Incubating public SignOperation sign(Action<SignOperation> setup)
    Creates a new `sign operation` using the given action to configure it before executing it.

    The project's default signatory and default signature type from the `signing settings` will be used to generate the signature. The returned `sign operation` gives access to the created signature files.

    If there is no configured default signatory available (and one is not explicitly specified in this operation's configuration), the sign operation will fail.

    Parameters:
      `setup` - The configuration action of the `sign operation`.
    Returns:
      The executed `sign operation`.
    Since:
      7.5

  - ### doSignOperation

    protected SignOperation doSignOperation(@DelegatesTo(SignOperation.class) Closure<?> setup)

  - ### doSignOperation

    protected SignOperation doSignOperation(Action<SignOperation> setup)

  - ### getSignatories

    public SignatoryProvider<?> getSignatories()