plan

type Executor interface {
	Execute(showPlan bool, showDiff bool, template *file.TaggedBytes, snippet *file.TaggedBytes, snippetProcessor *library.Processor, snippetVars library.InterpolatorParams, globals library.InterpolatorParams) ([]byte, error)
}

type ExecutorStep struct {
	Snippet      string                     `yaml:"snippet,omitempty"`
	Processor    *library.Processor         `yaml:"processor,omitempty"`
	Interpolator library.InterpolatorParams `yaml:"interpolator,omitempty"`
}

type InterpolationExecutor struct {
	ProcessorFactory factory.ProcessorFactory
	Interpolator     interpolator.Interpolator
	Diff             diff.Diff
	Output           io.Writer
	File             file.FileAccess
	Yaml             yaml.YamlAccess
}

type Plan struct {
	Global library.InterpolatorParams `yaml:"global,omitempty"`
	Steps  []*Step                    `yaml:"steps,omitempty"`
}

type Step struct {
	Snippet   string            `yaml:"snippet,omitempty"`
	Params    []TaggedParams    `yaml:"params,omitempty"`
	Processor library.Processor `yaml:"processor,omitempty"`
}

type TaggedParams struct {
	Tag          string                     `yaml:"tag,omitempty"`
	Interpolator library.InterpolatorParams `yaml:"interpolator,omitempty"`
}