podman

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package loads
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type options struct {
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	loader *loader
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}
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func defaultOptions() *options {
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	return &options{
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		loader: loaders,
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	}
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}
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func loaderFromOptions(options []LoaderOption) *loader {
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	opts := defaultOptions()
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	for _, apply := range options {
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		apply(opts)
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	}
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	return opts.loader
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}
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// LoaderOption allows to fine-tune the spec loader behavior
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type LoaderOption func(*options)
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// WithDocLoader sets a custom loader for loading specs
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func WithDocLoader(l DocLoader) LoaderOption {
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	return func(opt *options) {
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		if l == nil {
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			return
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		}
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		opt.loader = &loader{
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			DocLoaderWithMatch: DocLoaderWithMatch{
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				Fn: l,
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			},
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		}
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	}
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}
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// WithDocLoaderMatches sets a chain of custom loaders for loading specs
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// for different extension matches.
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//
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// Loaders are executed in the order of provided DocLoaderWithMatch'es.
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func WithDocLoaderMatches(l ...DocLoaderWithMatch) LoaderOption {
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	return func(opt *options) {
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		var final, prev *loader
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		for _, ldr := range l {
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			if ldr.Fn == nil {
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				continue
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			}
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			if prev == nil {
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				final = &loader{DocLoaderWithMatch: ldr}
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				prev = final
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				continue
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			}
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			prev = prev.WithNext(&loader{DocLoaderWithMatch: ldr})
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		}
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		opt.loader = final
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	}
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}
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