Embed simple.css file into binary

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

4 files changed, 7 insertions, 15 deletions

diff --git a/Makefile b/Makefile
index 7ffa644..de7e4f3 100644
--- a/Makefile
+++ b/Makefile
@@ -17,7 +17,6 @@ install: all
 	install -Dm 755 build/$(PROGRAM) $(DESTDIR)$(PREFIX)/bin/$(PROGRAM)
 	install -Dm 644 config/default.json $(DESTDIR)/etc/$(PROGRAM)/config.json
 	install -Dm 644 appdata/index.html.tmpl $(DESTDIR)$(PREFIX)/share/$(PROGRAM)/index.html.tmpl
-	install -Dm 644 appdata/simple.css $(DESTDIR)$(PREFIX)/share/$(PROGRAM)/simple.css
 
 debug:
 	go run *.go -c config/example.json -a appdata
diff --git a/appdata/index.html.tmpl b/appdata/index.html.tmpl
index 98f22ab..c9fa2f4 100644
--- a/appdata/index.html.tmpl
+++ b/appdata/index.html.tmpl
@@ -8,7 +8,7 @@
 
 		<meta charset="utf-8"/>
 		<meta name="viewport" content="width=device-width, initial-scale=1.0">
-		<link rel="stylesheet" href="./simple.css" type="text/css">
+		<link rel="stylesheet" href="/static/simple.css/simple.css" type="text/css">
 
 	</head>
 
diff --git a/appdata/simple.css b/appdata/simple.css
deleted file mode 120000
index 8f905d1..0000000
--- a/appdata/simple.css
+++ /dev/null
@@ -1 +0,0 @@
-../simple.css/simple.css
\ No newline at end of file
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)