Embed template files in server binary

main.go

@@ -3,17 +3,17 @@ package main
 import (
 	"fmt"
 	"net/http"
-	"path/filepath"
 	"strings"
 
 	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/chi/v5/middleware"
 
+	"git.kealoha.me/lks/lenslocked/templates"
 	"git.kealoha.me/lks/lenslocked/views"
 )
 
-func addStaticTemplate(r chi.Router, pattern string, filepath string) {
-	tpl := views.Must(views.FromFile(filepath))
+func addStaticTemplate(r chi.Router, pattern string, templatePath string) {
+	tpl := views.Must(views.FromFS(templates.FS, templatePath))
 
 	var testWriter strings.Builder
 	err := tpl.ExecuteWriter(&testWriter, nil)
@@ -33,9 +33,9 @@ func notFoundHandler(w http.ResponseWriter, r *http.Request) {
 func main() {
 	r := chi.NewRouter()
 	r.Use(middleware.Logger)
-	addStaticTemplate(r, "/", filepath.Join("templates", "home.gohtml"))
-	addStaticTemplate(r, "/contact", filepath.Join("templates", "contact.gohtml"))
-	addStaticTemplate(r, "/faq", filepath.Join("templates", "faq.gohtml"))
+	addStaticTemplate(r, "/", "home.gohtml")
+	addStaticTemplate(r, "/contact", "contact.gohtml")
+	addStaticTemplate(r, "/faq", "faq.gohtml")
 	r.NotFound(notFoundHandler)
 	fmt.Println("Starting the server on :3000...")
 	http.ListenAndServe(":3000", r)

templates/fs.go

@@ -0,0 +1,6 @@
+package templates
+
+import "embed"
+
+//go:embed *
+var FS embed.FS

views/template.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"html/template"
 	"io"
+	"io/fs"
 	"log"
 	"net/http"
 )
@@ -34,6 +35,15 @@ func FromFile(filepath string) (Template, error) {
 		htmlTpl: tpl,
 	}, nil
 }
+func FromFS(fs fs.FS, pattern string) (Template, error) {
+	tpl, err := template.ParseFS(fs, pattern)
+	if err != nil {
+		return Template{}, fmt.Errorf("Error parsing template: %v", err)
+	}
+	return Template{
+		htmlTpl: tpl,
+	}, nil
+}
 
 func Must(t Template, err error) Template {
 	if err != nil {