This repo has been deprecated in favor of https://github.com/cloudfoundry/libbuildpack

A library which provides extra functions and overrides for Cloud Foundry Buildpack compile scripts.

This is included a git submodule in all the official Cloud Foundry buildpacks.

Print out a lovely error message when the current stack is not supported by the buildpack.

./compile-extensions/bin/check_stack_support

Translates the URL given in ARGV[0] by matching the URL to a corresponding entry in manifest.yml and downloads the translated file with curl.

./compile-extensions/bin/download_dependency [URI] [INSTALL_DIR]

Returns an exit status of 0 if the current buildpack is a cached buildpack.

./compile-extensions/bin/is_cached

Returns the default version in the manifest (if specified) for a given dependency

./compile-extensions/bin/default_version_for [MANIFEST_FILE] [DEPENDENCY_NAME]

Print out a warning message when the current buildpack used for staging is a different version than the version of the buildpack used for the last successful staging.

• The buildpacks need to be the same buildpack (i.e. have the same language value in their manifest.yml files.) for the version check to apply.

./compile-extensions/bin/check_buildpack_version [STAGING_BUILDPACK_DIR] [CACHE_DIR]

Write the version of the current buildpack used for staging and the language (language value in its manifest.yml file) to a metadata file (BUILDPACK_METADATA) in the buildpack app cache directory.

./compile-extensions/bin/store_buildpack_metadata [STAGING_BUILDPACK_DIR] [CACHE_DIR]