| 1 | //go:build cgo |
|---|---|
| 2 | // +build cgo |
| 3 | |
| 4 | package main |
| 5 | |
| 6 | import ( |
| 7 | "fmt" |
| 8 | "log" |
| 9 | "os" |
| 10 | "path/filepath" |
| 11 | |
| 12 | "github.com/goccy/go-graphviz" |
| 13 | ) |
| 14 | |
| 15 | func runDotToImage(outfname string, format string, dot []byte) (string, error) { |
| 16 | g := graphviz.New() |
| 17 | graph, err := graphviz.ParseBytes(dot) |
| 18 | if err != nil { |
| 19 | return "", err |
| 20 | } |
| 21 | defer func() { |
| 22 | if err := graph.Close(); err != nil { |
| 23 | log.Fatal(err) |
| 24 | } |
| 25 | g.Close() |
| 26 | }() |
| 27 | var img string |
| 28 | if outfname == "" { |
| 29 | img = filepath.Join(os.TempDir(), fmt.Sprintf("go-callvis_export.%s", format)) |
| 30 | } else { |
| 31 | img = fmt.Sprintf("%s.%s", outfname, format) |
| 32 | } |
| 33 | if err := g.RenderFilename(graph, graphviz.Format(format), img); err != nil { |
| 34 | return "", err |
| 35 | } |
| 36 | return img, nil |
| 37 | } |
| 38 |
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