nsqadmin: use go:embed on go 1.16+

go.mod

@@ -1,6 +1,6 @@
 module github.com/nsqio/nsq
 
-go 1.13
+go 1.16
 
 require (
 	github.com/BurntSushi/toml v0.3.1

nsqadmin/README.md

@@ -6,19 +6,19 @@ administrative tasks.
 Read the [docs](https://nsq.io/components/nsqadmin.html)
 
 
-## Local Development
+## Local Development (Go 1.16+)
 
 ### Dependencies
 
- 1. Install [`go-bindata`](https://github.com/shuLhan/go-bindata)
- 2. Install NodeJS 14.x (includes npm)
+ 1. Install NodeJS 16.x (includes `npm`)
 
-### Workflow
+### Live Reload Workflow
 
  1. `$ npm install`
- 2. `$ ./gulp --series clean watch` or `$ ./gulp --series clean build`
- 3. `$ go-bindata --debug --pkg=nsqadmin --prefix=static/build/ static/build/...`
- 4. `$ go build ../apps/nsqadmin && ./nsqadmin`
- 5. make changes (repeat step 4 only if you make changes to any Go code)
- 6. `$ go-bindata --pkg=nsqadmin --prefix=static/build/ static/build/...`
- 7. commit other changes and `bindata.go`
+ 2. `$ ./gulp --series clean watch`
+ 3. `$ go build --tags debug` (from `apps/nsqadmin` directory)
+ 4. make changes to static assets (repeat step 3 only if you make changes to any Go code)
+
+### Build
+
+ 1. `$ ./gulp --series clean build`

nsqadmin/http.go

@@ -164,7 +164,7 @@ func (s *httpServer) indexHandler(w http.ResponseWriter, req *http.Request, ps h
 func (s *httpServer) staticAssetHandler(w http.ResponseWriter, req *http.Request, ps httprouter.Params) (interface{}, error) {
 	assetName := ps.ByName("asset")
 
-	asset, err := Asset(assetName)
+	asset, err := staticAsset(assetName)
 	if err != nil {
 		return nil, http_api.Err{404, "NOT_FOUND"}
 	}

nsqadmin/static.go

@@ -0,0 +1,15 @@
+// +build go1.16
+// +build !debug
+
+package nsqadmin
+
+import (
+	"embed"
+)
+
+//go:embed static/build
+var static embed.FS
+
+func staticAsset(name string) ([]byte, error) {
+	return static.ReadFile("static/build/" + name)
+}

nsqadmin/static_debug.go

@@ -0,0 +1,19 @@
+// +build go1.16
+// +build debug
+
+package nsqadmin
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+)
+
+func staticAsset(name string) ([]byte, error) {
+	path := path.Join("../../nsqadmin/static/build", name)
+	_, err := os.Stat(path)
+	if err != nil {
+		return nil, err
+	}
+	return ioutil.ReadFile(path)
+}

nsqadmin/static_legacy.go

@@ -0,0 +1,7 @@
+// +build !go1.16
+
+package nsqadmin
+
+func staticAsset(name string) ([]byte, error) {
+	return Asset(name)
+}