Rename the components

resolver-go/cmd/botan-gen/main.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"go/format"
+	"os"
+	"strings"
+
+	"github.com/tgckpg/botanres-go/internal/classmap"
+)
+
+func main() {
+	src := flag.String("src", "./src", "BotanJS source root")
+	out := flag.String("out", "internal/generated/classmap_gen.go", "generated Go output")
+	pkg := flag.String("pkg", "generated", "generated package name")
+	flag.Parse()
+
+	m, err := classmap.Build(*src)
+	if err != nil {
+		fatal(err)
+	}
+	if err := os.MkdirAll(dir(*out), 0o755); err != nil {
+		fatal(err)
+	}
+	code := render(*pkg, m)
+	fmted, err := format.Source([]byte(code))
+	if err != nil {
+		_, _ = os.Stderr.WriteString(code)
+		fatal(err)
+	}
+	if err := os.WriteFile(*out, fmted, 0o644); err != nil {
+		fatal(err)
+	}
+}
+
+func render(pkg string, m *classmap.Map) string {
+	var b strings.Builder
+	b.WriteString("// Code generated by botan-gen; DO NOT EDIT.\n")
+	b.WriteString("package " + pkg + "\n\n")
+	b.WriteString("import \"github.com/tgckpg/botanres-go/internal/classmap\"\n\n")
+	b.WriteString("var ClassMap = &classmap.Map{\nSymbols: map[string]classmap.Symbol{\n")
+	for _, s := range classmap.SortedSymbols(m) {
+		fmt.Fprintf(&b, "%q: {Name:%q, Kind:%q, Parent:%q, Imports:%#v, Resource: classmap.Resource{Src:%q, JSHash:%q, CSSHash:%q}},\n",
+			s.Name, s.Name, string(s.Kind), s.Parent, s.Imports, s.Resource.Src, s.Resource.JSHash, s.Resource.CSSHash)
+	}
+	b.WriteString("},\nFiles: map[string]classmap.Resource{\n")
+	for _, r := range classmap.SortedFiles(m) {
+		fmt.Fprintf(&b, "%q: {Src:%q, JSHash:%q, CSSHash:%q},\n", r.Src, r.Src, r.JSHash, r.CSSHash)
+	}
+	b.WriteString("},\n}\n")
+	return b.String()
+}
+
+func dir(path string) string {
+	idx := strings.LastIndexAny(path, `/\\`)
+	if idx < 0 {
+		return "."
+	}
+	return path[:idx]
+}
+
+func fatal(err error) {
+	fmt.Fprintln(os.Stderr, "botan-gen:", err)
+	os.Exit(1)
+}