latestPackageVersion returns latest available version of an NPM package.

* @param {object} exports * @param {Set<string>} keys

* @param {object} exports * @param {Set<string>} keys

setUpDetectEnvironment sets up an environment for testing buildpack detect functionality.

AdaptEntrypoint rewrites the entrypoint command if the capability is present.

AddFileWatcherProcess installs and configures a file watcher as the entrypoint.

ApisEnabled returns true if the application has AppEngine API support enabled in app.yaml

AsDefaultProcess marks the process as the default one for when launcher is invoked without arguments.

AsDirectProcess causes the process to be executed directly, i.e. without a shell.

BuildFn clears the workspace while leaving exclusion patterns untouched. exclusions is a list of pattern strings relative to the user application dire

ComposerInstall runs `composer install`, using the cache iff a lock file is present. It creates a layer, so it returns the layer so that the caller ma

Debug returns whether debug mode is enabled.

DetectFn detemines if clear source buildpacks should opt out. In case the buildpack shouldn't opt out, the function does not make a determination and

DetectVersion detects ruby version from the environment, Gemfile.lock, gems.locked, or falls back to a default version.

EnsureUnixLineEndings replaces windows style CRLF line endings with unix LF line endings. This is necessary for executable scripts with shebang as the

Entrypoint returns the entrypoint command based on the package manager and capabilities.

EntrypointCmd constructs direct relative execution string for .dll targets.

ExtractVersion extracts the php version from the environment, composer.json.

FromJSON parses json bytes to a BuilderOutput.

GeneratePythonConfig generates a netrc file in the user's HOME directory with the credentials necessary for PIP to make authenticated requests to Arti

GetPubspec unmarshals the pubspec.yaml file into a Pubspec struct.

GetRuntimeVersion returns the value in GOOGLE_ASP_NET_CORE_VERSION, and if not set, returns Microsoft.AspNetCore.App version in the runtimeconfig.json

GetTarballProject returns the Artifact Registry project for the TPC tarball.

GetValue returns the Metadata value with MetadataID id, or creates it if it doesn't exist.

GoVersion reads the version of the installed Go runtime.

HasApphostingPackageOrYamlBuild returns true if the given package.json file includes a "apphosting:build" script or if apphosting.yaml contains a buil

HasAtLeastOneFiltered is a pass through for filepath.Glob(...) it returns true if there is at least one file which matches the search pattern and is i

HasGCPBuild returns true if the given package.json file includes a "gcp-build" script.

InferEntrypoint is used to generate an entrypoint if it is missing in app.yaml

InstallPNPM installs pnpm in the given layer if it is not already cached.

Installed checks that all required tools are on PATH.

IsCached returns true if the requested version of a runtime is installed in the given layer.

IsGo111Runtime returns true when the GOOGLE_RUNTIME is go111. This will be true when using GCF or GAE with go 1.11.

IsNodeJS8Runtime returns true when the GOOGLE_RUNTIME is nodejs8. This will be true when using GCF or GAE with nodejs8. This function is useful for so

IsPackageManagerConfigured checks if the environment is configured to use the specified package manager.

IsPipPyproject checks if the application is a pip pyproject.

IsPoetryProject checks if the application is a Poetry project.

IsReleaseCandidate returns true if given string is a RC candidate version. When launching a new runtime, we need to test with RC candidate which will

IsUsingVendoredDependencies returns true if the builder should be using the vendored dependencies.

IsYarn2 detects whether the given lockfile was generated with Yarn 2.

JSON encodes a BuilderOutput as json

MainFromManifest returns the main class specified in the manifest at the input path.

MergeEnvVars merges the environment variables from the original list with the override list. If there is a conflict between the environment variables,

MockData mocks the tooling versions json file for testing.

PackVersion checks that the installed pack has the correct version.

RequestedNodejsVersion returns any customer provided Node.js version constraint by inspecting the environment and the package.json.