getMaxOldSpaceSize returns the memory size specified by (GOOGLE_CONTAINER_MEMORY_HINT_MB - nodeJSHeadroomMB), or 0 if env var is not specified.

hasRuntimePreinstalled returns whether or not the image is the "generic" run image that does not contain the language runtime built in. For containers

hostPort returns the host port assigned to the exposed container port.

isPreNode11 returns true if the installed version of Node.js is v10.x.x or older.

isPreReleaseVersion returns true if the runtime version is a pre-release version.

When launching a new runtime, we need to test with RC candidate which will eventually be replaced by a stable candidate. Till then, we will support th

isValidTarDestination protects against a path traversal vulnerability by ensuring the final path is within the target directory.

isZstdSupportedRuntime checks if the given runtime environment string supports Zstd extraction.

mainPath chooses the main package path from the paths provided by _main-package-path or GAE_YAML_MAIN.

mainPath chooses the main package path from the paths provided by the stager file.

mergeRequirementsFiles reads all files in reqs and appends their contents to dest file.

moduleAndPackageNames extracts the module name and package name of the function.

moveOrCopyPath recursively copies or moves files and directories: from srcPath to destPath.

parseVersionJSON parses a JSON array of version information

pathsToRemove returns a list of entries in dir, filtering entries that match any in exclusions. exclusions should be a partial path relative to dir.

pollEndpoint polls the endpoint until the response body contains the expected string or times out.

provisionImageWithMatchingStackId returns an image with the contents of 'fromImage' and a stack ID of 'stackID'. The second return value is a cleanUp

randString generates a random string of length n.

readProjectFile returns a .NET Project object.

readWebProcessPid retrieves the active PID of the supervised web application.