go backend (#1)

Reviewed-on: yw5n/yw5ncom#1

src/main.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+    "log"
+    "net/http"
+    "path/filepath"
+    "strings"
+)
+
+func html(w http.ResponseWriter, r *http.Request) {
+    if r.URL.Path == "/style.css" {
+        http.ServeFile(w, r, "/html/style.css")
+        return
+    }
+    if strings.HasPrefix(r.URL.Path, "/static/") {
+        http.ServeFile(w, r, r.URL.Path)
+        return
+    }
+    if r.URL.Path == "/" {
+        http.ServeFile(w, r, "/html/index.html")
+        return
+    }
+    http.ServeFile(w, r, filepath.Join("/html", r.URL.Path + ".html"))
+}
+
+func main() {
+    http.HandleFunc("/", html)
+
+    err := http.ListenAndServe(":3000", nil)
+    if err != nil {
+        log.Fatal(err)
+    }
+}

src/vars/vars.go

@@ -0,0 +1,19 @@
+package vars
+
+import (
+    "path/filepath"
+)
+
+var (
+    templates string
+    static string
+    html string
+    css string
+)
+
+func init() {
+    templates = "templates"
+    static = "static"
+    html = filepath.Join(static, "html")
+    css = filepath.Join(static, "css")
+}