Index generation

build/generate-index.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"fmt"
+	"html/template"
+	"os"
+	"path/filepath"
+	"sort"
+)
+
+type IndexData struct {
+	Dir   string
+	Files []string
+}
+
+func generateIndex(dir string) error {
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		return fmt.Errorf("failed to read directory: %w", err)
+	}
+
+	var files []string
+	for _, entry := range entries {
+		name := entry.Name()
+		// Skip the index.html itself and hidden files
+		if name != "index.html" && !filepath.HasPrefix(name, ".") {
+			files = append(files, name)
+		}
+	}
+	sort.Strings(files)
+
+	templatePath := "build/index.html.tmpl"
+	tmpl, err := template.ParseFiles(templatePath)
+	if err != nil {
+		return fmt.Errorf("failed to parse template: %w", err)
+	}
+
+	indexPath := filepath.Join(dir, "index.html")
+	f, err := os.Create(indexPath)
+	if err != nil {
+		return fmt.Errorf("failed to create index.html: %w", err)
+	}
+	defer f.Close()
+
+	data := IndexData{
+		Dir:   filepath.Base(dir),
+		Files: files,
+	}
+
+	if err := tmpl.Execute(f, data); err != nil {
+		return fmt.Errorf("failed to execute template: %w", err)
+	}
+
+	fmt.Printf("Generated index.html in %s\n", dir)
+	return nil
+}
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Println("Usage: generate-index <directory> [<directory>...]")
+		os.Exit(1)
+	}
+
+	for _, dir := range os.Args[1:] {
+		if err := generateIndex(dir); err != nil {
+			fmt.Fprintf(os.Stderr, "Error processing %s: %v\n", dir, err)
+			os.Exit(1)
+		}
+	}
+}