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template parse only once

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Özgür Kesim 2017-11-23 14:03:18 -08:00
parent f7771ce8ad
commit cdb8e9cb03
1 changed files with 9 additions and 8 deletions
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17
main.go
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@ -23,7 +23,6 @@ var (
cert = flag.String("cert", "cert.pem", "certitifate") cert = flag.String("cert", "cert.pem", "certitifate")
key = flag.String("key", "key.pem", "key") key = flag.String("key", "key.pem", "key")
savedir = flag.String("d", "saved", "direcotry to save the pics.") savedir = flag.String("d", "saved", "direcotry to save the pics.")
tools = []Tool{}
) )
type Tool struct { type Tool struct {
@ -126,24 +125,26 @@ func (t Tool) load() func(http.ResponseWriter, *http.Request) {
} }
} }
func (t Tool) index() func(http.ResponseWriter, *http.Request) { func (t Tool) index(tmpl *template.Template, data interface{}) func(http.ResponseWriter, *http.Request) {
return func(w http.ResponseWriter, r *http.Request) { return func(w http.ResponseWriter, r *http.Request) {
if tmpl, err := template.ParseFiles("index.html"); err != nil { err := tmpl.ExecuteTemplate(w, "index.html", map[string]interface{}{"Tools": data, "Cur": t})
log.Printf("error parsing index.html: %v", err) if err != nil {
http.Error(w, "internal error", http.StatusInternalServerError)
} else if err = tmpl.ExecuteTemplate(w, "index.html", map[string]interface{}{"Tools": tools, "Cur": t}); err != nil {
log.Printf("error executing template for %s: %v", t.Name, err) log.Printf("error executing template for %s: %v", t.Name, err)
} }
} }
} }
func main() { func main() {
flag.Parse() var tools = []Tool{}
var tmpl *template.Template
flag.Parse()
if cfg, err := os.Open(*config); err != nil { if cfg, err := os.Open(*config); err != nil {
log.Fatal(err) log.Fatal(err)
} else if err = json.NewDecoder(cfg).Decode(&tools); err != nil { } else if err = json.NewDecoder(cfg).Decode(&tools); err != nil {
log.Fatalf("error loading %s: %v\n", *config, err) log.Fatalf("error loading %s: %v\n", *config, err)
} else if tmpl, err = template.ParseFiles("index.html"); err != nil {
log.Fatalf("error parsing index.html: %v", err)
} }
for _, tool := range tools { for _, tool := range tools {
@ -152,7 +153,7 @@ func main() {
http.HandleFunc(pre+"s", tool.save()) http.HandleFunc(pre+"s", tool.save())
http.HandleFunc(pre+"l/", tool.load()) http.HandleFunc(pre+"l/", tool.load())
http.HandleFunc(pre+"svg/", tool.svg()) http.HandleFunc(pre+"svg/", tool.svg())
http.HandleFunc(pre, tool.index()) http.HandleFunc(pre, tool.index(tmpl, tools))
log.Println("handler for", pre, "registered") log.Println("handler for", pre, "registered")
} }
http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static")))) http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static"))))