gistfile1.txt

package main

import (
	"fmt"
	"log"

	"github.com/google/go-jsonnet"
	"github.com/google/go-jsonnet/ast"
	"github.com/google/go-jsonnet/toolutils"
)

var demo = `
local foo = import "a";
local bar = importstr "b";
{}
`

func visit(n ast.Node, f func(ast.Node)) {
	f(n)
	for _, c := range toolutils.Children(n) {
		visit(c, f)
	}
}

func mainE() error {
	a, err := jsonnet.SnippetToAST("", demo)
	if err != nil {
		return err
	}

	var files []string
	visit(a, func(n ast.Node) {
		switch i := n.(type) {
		case *ast.Import:
			files = append(files, i.File.Value)
		case *ast.ImportStr:
			files = append(files, i.File.Value)
		}
	})
	fmt.Println(files)
	return nil
}

func main() {
	if err := mainE(); err != nil {
		log.Fatal(err)
	}
}