remove cache, it's not useful in practice

cmd/dkl-local-server/render-context.go

@@ -10,6 +10,7 @@ import (
 	"log"
 	"net/http"
 	"net/url"
+	"os"
 	"path"
 	"path/filepath"
 	"text/template"
@@ -35,12 +36,7 @@ type renderContext struct {
 }
 
 func renderCtx(w http.ResponseWriter, r *http.Request, ctx *renderContext, what string,
-	create func(out io.Writer, ctx *renderContext) error) error {
-
-	tag, err := ctx.Tag()
-	if err != nil {
-		return err
-	}
+	create func(out io.Writer, ctx *renderContext) error) (err error) {
 
 	ctx.CmdLine = r.URL.Query().Get(cmdlineParam.Data().Name)
 
@@ -49,19 +45,26 @@ func renderCtx(w http.ResponseWriter, r *http.Request, ctx *renderContext, what
 	}
 
 	// get it or create it
-	content, meta, err := casStore.GetOrCreate(tag, what, func(out io.Writer) error {
-		log.Printf("building %s for %q", what, ctx.Host.Name)
-		return create(out, ctx)
-	})
-
+	outfile, err := os.CreateTemp("/tmp", "dls."+what+".")
 	if err != nil {
-		return err
+		return
+	}
+
+	defer os.Remove(outfile.Name())
+
+	log.Printf("building %s for %q", what, ctx.Host.Name)
+	err = create(outfile, ctx)
+	if err != nil {
+		return
 	}
 
 	// serve it
 	log.Printf("sending %s for %q", what, ctx.Host.Name)
-	http.ServeContent(w, r, what, meta.ModTime(), content)
-	return nil
+
+	outfile.Seek(0, io.SeekStart)
+	io.Copy(w, outfile)
+
+	return
 }
 
 func sslConfigFromLocalConfig(cfg *localconfig.Config) (sslCfg *cfsslconfig.Config, err error) {