Prototyping dependency removal

dockerfile.go

// parse parses the contents of a Dockerfile into a Dockerfile struct.
func parse(content string) (*Dockerfile, error) {
	var df Dockerfile
	//df.ExposedPorts = []portConfig{}
	//
	//ast, err := parser.Parse(strings.NewReader(content))
	//if err != nil {
	//	return nil, fmt.Errorf("parse reader: %w", err)
	//}
	//
	//for _, child := range ast.AST.Children {
	//	// ParseInstruction converts an AST to a typed instruction.
	//	// Does prevalidation checks before parsing
	//	// Example of an instruction is HEALTHCHECK CMD curl -f http://localhost/ || exit 1.
	//	instruction, err := instructions.ParseInstruction(child)
	//	if err != nil {
	//		return nil, fmt.Errorf("parse instructions: %w", err)
	//	}
	//	inst := fmt.Sprint(instruction)
	//
	//	// Getting the value at a children will return the Dockerfile directive
	//	switch d := child.Value; d {
	//	case "expose":
	//		currentPorts := parseExpose(inst)
	//		df.ExposedPorts = append(df.ExposedPorts, currentPorts...)
	//	case "healthcheck":
	//		healthcheckOptions, err := parseHealthCheck(inst)
	//		if err != nil {
	//			return nil, err
	//		}
	//		df.HealthCheck = healthcheckOptions
	//	}
	//}
	return &df, nil
}

go.mod.diff

-       github.com/moby/buildkit v0.8.3