# CPack productbuild Generator

New in version 3.7.

productbuild CPack generator (macOS).

## Variables specific to CPack productbuild generator

The following variable is specific to installers built on Mac macOS using ProductBuild:

`CPACK_COMMAND_PRODUCTBUILD`

  Path to the `productbuild(1)` command used to generate a product archive for the macOS Installer or Mac App Store. This variable can be used to override the automatically detected command (or specify its location if the auto-detection fails to find it).

`CPACK_PRODUCTBUILD_IDENTITY_NAME`

  New in version 3.8.

  Adds a digital signature to the resulting package.

`CPACK_PRODUCTBUILD_KEYCHAIN_PATH`

  New in version 3.8.

  Specify a specific keychain to search for the signing identity.

`CPACK_COMMAND_PKGBUILD`

  Path to the `pkgbuild(1)` command used to generate an macOS component package on macOS. This variable can be used to override the automatically detected command (or specify its location if the auto-detection fails to find it).

`CPACK_PKGBUILD_IDENTITY_NAME`

  New in version 3.8.

  Adds a digital signature to the resulting package.

`CPACK_PKGBUILD_KEYCHAIN_PATH`

  New in version 3.8.

  Specify a specific keychain to search for the signing identity.

`CPACK_PREFLIGHT_<COMP>_SCRIPT`

  Full path to a file that will be used as the `preinstall` script for the named `<COMP>` component's package, where `<COMP>` is the uppercased component name. No `preinstall` script is added if this variable is not defined for a given component.

`CPACK_POSTFLIGHT_<COMP>_SCRIPT`

  Full path to a file that will be used as the `postinstall` script for the named `<COMP>` component's package, where `<COMP>` is the uppercased component name. No `postinstall` script is added if this variable is not defined for a given component.

`CPACK_PRODUCTBUILD_RESOURCES_DIR`

  New in version 3.9.

  If specified the productbuild generator copies files from this directory (including subdirectories) to the `Resources` directory. This is done before the `CPACK_RESOURCE_FILE_WELCOME`, `CPACK_RESOURCE_FILE_README`, and `CPACK_RESOURCE_FILE_LICENSE` files are copied.

### Background Image

New in version 3.17.

This group of variables controls the background image of the generated installer.

`CPACK_PRODUCTBUILD_BACKGROUND`

  Adds a background to Distribution XML if specified. The value contains the path to image in `Resources` directory.

`CPACK_PRODUCTBUILD_BACKGROUND_ALIGNMENT`

  Adds an `alignment` attribute to the background in Distribution XML. Refer to Apple documentation for valid values.

`CPACK_PRODUCTBUILD_BACKGROUND_SCALING`

  Adds a `scaling` attribute to the background in Distribution XML. Refer to Apple documentation for valid values.

`CPACK_PRODUCTBUILD_BACKGROUND_MIME_TYPE`

  Adds a `mime-type` attribute to the background in Distribution XML. The option contains MIME type of an image.

`CPACK_PRODUCTBUILD_BACKGROUND_UTI`

  Adds an `uti` attribute to the background in Distribution XML. The option contains UTI type of an image.

`CPACK_PRODUCTBUILD_BACKGROUND_DARKAQUA`

  Adds a background for the Dark Aqua theme to Distribution XML if specified. The value contains the path to image in `Resources` directory.

`CPACK_PRODUCTBUILD_BACKGROUND_DARKAQUA_ALIGNMENT`

  Does the same as `CPACK_PRODUCTBUILD_BACKGROUND_ALIGNMENT` option, but for the dark theme.

`CPACK_PRODUCTBUILD_BACKGROUND_DARKAQUA_SCALING`

  Does the same as `CPACK_PRODUCTBUILD_BACKGROUND_SCALING` option, but for the dark theme.

`CPACK_PRODUCTBUILD_BACKGROUND_DARKAQUA_MIME_TYPE`

  Does the same as `CPACK_PRODUCTBUILD_BACKGROUND_MIME_TYPE` option, but for the dark theme.

`CPACK_PRODUCTBUILD_BACKGROUND_DARKAQUA_UTI`

  Does the same as `CPACK_PRODUCTBUILD_BACKGROUND_UTI` option, but for the dark theme.