zabio3/godolint

package rules

import (
    "strings"

    "github.com/moby/buildkit/frontend/dockerfile/parser"
)

// validateDL3004 is "Do not use sudo as it leads to unpredictable behavior. Use a tool like gosu to enforce root."
func validateDL3004(node *parser.Node) (rst []ValidateResult, err error) {
    for _, child := range node.Children {
        if child.Value == RUN {
            for _, v := range strings.Fields(child.Next.Value) {
                if v == "sudo" {
                    rst = append(rst, ValidateResult{line: child.StartLine})
                }
                break
            }
        }
    }
    return rst, nil
}