Depgraph renders the dependency flow visualization
(w io.Writer, project scanner.DepsProject)
| 50 | |
| 51 | // Depgraph renders the dependency flow visualization |
| 52 | func Depgraph(w io.Writer, project scanner.DepsProject) { |
| 53 | files := project.Files |
| 54 | externalDeps := project.ExternalDeps |
| 55 | projectName := filepath.Base(project.Root) |
| 56 | |
| 57 | if len(files) == 0 { |
| 58 | fmt.Fprintln(w, " No source files found.") |
| 59 | return |
| 60 | } |
| 61 | |
| 62 | // Build internal names lookup |
| 63 | internalNames := make(map[string]bool) |
| 64 | extPattern := regexp.MustCompile(`\.[^.]+$`) |
| 65 | for _, f := range files { |
| 66 | basename := filepath.Base(f.Path) |
| 67 | name := strings.ToLower(extPattern.ReplaceAllString(basename, "")) |
| 68 | internalNames[name] = true |
| 69 | } |
| 70 | |
| 71 | // Use BuildFileGraph for accurate file-level dependency resolution |
| 72 | fg, err := scanner.BuildFileGraph(project.Root) |
| 73 | var internalDeps map[string][]string |
| 74 | var depCounts map[string]int |
| 75 | if err == nil && fg != nil { |
| 76 | // Build set of files we're displaying (may be filtered by --diff) |
| 77 | displayedFiles := make(map[string]bool) |
| 78 | for _, f := range files { |
| 79 | displayedFiles[f.Path] = true |
| 80 | } |
| 81 | |
| 82 | // Filter imports to only include displayed files |
| 83 | internalDeps = make(map[string][]string) |
| 84 | for file, imports := range fg.Imports { |
| 85 | if !displayedFiles[file] { |
| 86 | continue |
| 87 | } |
| 88 | var filtered []string |
| 89 | for _, imp := range imports { |
| 90 | if displayedFiles[imp] { |
| 91 | filtered = append(filtered, imp) |
| 92 | } |
| 93 | } |
| 94 | if len(filtered) > 0 { |
| 95 | internalDeps[file] = filtered |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | // Count importers only among displayed files |
| 100 | depCounts = make(map[string]int) |
| 101 | for file, importers := range fg.Importers { |
| 102 | if !displayedFiles[file] { |
| 103 | continue |
| 104 | } |
| 105 | count := 0 |
| 106 | for _, imp := range importers { |
| 107 | if displayedFiles[imp] { |
| 108 | count++ |
| 109 | } |