type Deps struct {

	// The logger to use.
	Log *loggers.Logger `json:"-"`

	// Used to log errors that may repeat itself many times.
	DistinctErrorLog *helpers.DistinctLogger

	// Used to log warnings that may repeat itself many times.
	DistinctWarningLog *helpers.DistinctLogger

	// The templates to use. This will usually implement the full tpl.TemplateManager.
	Tmpl tpl.TemplateHandler `json:"-"`

	// We use this to parse and execute ad-hoc text templates.
	TextTmpl tpl.TemplateParseFinder `json:"-"`

	// The file systems to use.
	Fs *hugofs.Fs `json:"-"`

	// The PathSpec to use
	*helpers.PathSpec `json:"-"`

	// The ContentSpec to use
	*helpers.ContentSpec `json:"-"`

	// The SourceSpec to use
	SourceSpec *source.SourceSpec `json:"-"`

	// The Resource Spec to use
	ResourceSpec *resources.Spec

	// The configuration to use
	Cfg config.Provider `json:"-"`

	// The file cache to use.
	FileCaches filecache.Caches

	// The translation func to use
	Translate func(translationID string, args ...interface{}) string `json:"-"`

	// The language in use. TODO(bep) consolidate with site
	Language *langs.Language

	// The site building.
	Site page.Site

	// All the output formats available for the current site.
	OutputFormatsConfig output.Formats

	WithTemplate func(templ tpl.TemplateManager) error `json:"-"`

	// Used in tests
	OverloadedTemplateFuncs map[string]interface{}

	Metrics metrics.Provider

	// Timeout is configurable in site config.
	Timeout time.Duration

	// BuildStartListeners will be notified before a build starts.
	BuildStartListeners *Listeners
	// contains filtered or unexported fields
}

type DepsCfg struct {

	// The Logger to use.
	Logger *loggers.Logger

	// The file systems to use
	Fs *hugofs.Fs

	// The language to use.
	Language *langs.Language

	// The Site in use
	Site page.Site

	// The configuration to use.
	Cfg config.Provider

	// The media types configured.
	MediaTypes media.Types

	// The output formats configured.
	OutputFormats output.Formats

	// Template handling.
	TemplateProvider ResourceProvider
	WithTemplate     func(templ tpl.TemplateManager) error
	// Used in tests
	OverloadedTemplateFuncs map[string]interface{}

	// i18n handling.
	TranslationProvider ResourceProvider

	// Whether we are in running (server) mode
	Running bool
}

type Listeners struct {
	sync.Mutex
	// contains filtered or unexported fields
}

type ResourceProvider interface {
	Update(deps *Deps) error
	Clone(deps *Deps) error
}