// takes a Terraform Graph and build the internal debug graph
func (dg *DebugGraph) build(g *Graph) error {
if dg == nil {
return nil
}
dg.Lock()
defer dg.Unlock()
dg.Dot = dot.NewGraph(map[string]string{
"compound": "true",
"newrank": "true",
})
dg.Dot.Directed = true
if dg.dotOpts == nil {
dg.dotOpts = &GraphDotOpts{
DrawCycles: true,
MaxDepth: -1,
Verbose: true,
}
}
err := dg.buildSubgraph("root", g, 0)
if err != nil {
return err
}
return nil
}
// GraphDot returns the dot formatting of a visual representation of
// the given Terraform graph.
func GraphDot(g *Graph, opts *GraphDotOpts) (string, error) {
dg := dot.NewGraph(map[string]string{
"compound": "true",
"newrank": "true",
})
dg.Directed = true
err := graphDotSubgraph(dg, "root", g, opts, 0)
if err != nil {
return "", err
}
return dg.String(), nil
}