Embed simple.css file into binary

This removes the need to deploy the simple.css file to the target
machine.

1 files changed, 6 insertions, 12 deletions

diff --git a/main.go b/main.go
index a99b46b..5363831 100644
--- a/main.go
+++ b/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"bytes"
 	"encoding/json"
+	"embed"
 	"flag"
 	"fmt"
 	"io/ioutil"
@@ -13,6 +14,9 @@ import (
 	"text/template"
 )
 
+//go:embed simple.css/simple.css
+var static embed.FS
+
 var appdata string
 
 type RuntimeConfig struct {
@@ -33,7 +37,8 @@ func main() {
 	c := parseConfig(configPath)
 	http.HandleFunc("/", index(c.Devices, appdata))
 	http.HandleFunc("/api", api())
-	http.HandleFunc("/simple.css", css(appdata))
+	http.Handle("/static/", http.StripPrefix("/static/",
+		http.FileServer(http.FS(static))))
 	fmt.Printf("Serving at http://%s\n", c.Web.Listen)
 	log.Fatal(http.ListenAndServe(c.Web.Listen.String(), nil))
 }
@@ -81,17 +86,6 @@ func index(devices DevicesConfig, appdata string) func(http.ResponseWriter, *htt
 	}
 }
 
-func css(appdata string) func(http.ResponseWriter, *http.Request) {
-
-	path := filepath.Join(appdata, "simple.css")
-	css := string(mustRead(path))
-
-	return func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Content-Type", "text/css; charset=utf-8")
-		fmt.Fprint(w, css)
-	}
-}
-
 // mustRead() reads a file and panics if this is not possible.
 func mustRead(path string) []byte {
 	data, err := ioutil.ReadFile(path)