AddInputResource reads the inputs resources and adds the corresponding container steps This function reads the `paths` to check if resource copies needs to be fetched from previous tasks output(from PVC) 1.

AddOutputImageDigestExporter add a step to check the index.json for all output images.

AddOutputResources reads the output resources and adds the corresponding container steps This function also reads the inputs to check if resources are redeclared in inputs and has any custom target directory.

ApplyParameters applies the params from a TaskRun.Input.Parameters to a TaskSpec.

ApplyReplacements replaces placeholders for declared parameters with the specified replacements.

ApplyResources applies the substitution from values in resources which are referenced in spec as subitems of the replacementStr.

GetPVCVolume gets pipelinerun pvc volume.

GetResourceFromBinding will return an instance of a PipelineResource to use for r, either by getting it with getter or by instantiating it from the embedded spec.

GetTaskData will retrieve the Task metadata and Spec associated with the provided TaskRun.

ResolveTaskResources looks up PipelineResources referenced by inputs and outputs and returns a structure that unites the resolved references and the Task Spec.

ResolvedTaskResources contains all the data that is needed to execute the TaskRun: the TaskRun, it's Task and the PipelineResources it needs.

GetClusterTask is a function that will retrieve the Task from name and namespace.

GetResource is a function used to retrieve PipelineResources.

GetTask is a function used to retrieve Tasks.