Removed the bash info generation, now using ldflags

Makefile

@@ -11,7 +11,6 @@ buildNodeFrontend:
 embedFrontend:
 	cd handlers/tmpls && esc -o tmpls.go -pkg tmpls -include ^*\.html .
 	cd handlers && esc -o static.go -pkg handlers -prefix ../static/build ../static/build
-	bash build/info.sh
 
 getCMDDependencies:
 	go get -v github.com/mattn/goveralls
@@ -31,6 +30,6 @@ buildProject:
 buildDockerImage:
 	rm -rf docker_releases 
 	mkdir docker_releases
-	CGO_ENABLED=0 gox -output="docker_releases/{{.Dir}}_{{.OS}}_{{.Arch}}/{{.Dir}}" -osarch="linux/amd64 linux/arm"
+	CGO_ENABLED=0 gox -output="docker_releases/{{.Dir}}_{{.OS}}_{{.Arch}}/{{.Dir}}" -osarch="linux/amd64 linux/arm" -ldflags="-X util.ldFlagNodeJS=`node --version` -X util.ldFlagCommit=`git rev-parse HEAD` -X util.ldFlagYarn=`yarn --version` -X util.ldFlagCompilationTime=`date --iso-8601=seconds`"
 	docker build -t maxibanki/golang_url_shortener:arm -f Dockerfile.arm .
 	docker build -t maxibanki/golang_url_shortener -f Dockerfile.amd64 .

build/info.sh

@@ -1,12 +0,0 @@
-cat > util/info.go <<EOL
-package util
-
-// VersionInfo contains the generated information which is
-// done at build time and used for the frontend page About
-var VersionInfo = map[string]string{
-	"nodeJS":          "`node --version`",
-	"commit":          "`git rev-parse HEAD`",
-	"compilationTime": "`date --iso-8601=seconds`",
-	"yarn":            "`yarn --version`",
-}
-EOL

handlers/handlers.go

@@ -90,7 +90,7 @@ func (h *Handler) setHandlers() error {
 	h.engine.NoRoute(h.handleAccess, func(c *gin.Context) {
 		c.Header("Vary", "Accept-Encoding")
 		c.Header("Cache-Control", "public, max-age=2592000")
-		c.Header("ETag", util.VersionInfo["commit"])
+		c.Header("ETag", util.VersionInfo.Commit)
 	}, gin.WrapH(http.FileServer(FS(false))))
 	return nil
 }

handlers/public.go

@@ -140,14 +140,16 @@ func (h *Handler) handleGetVisitors(c *gin.Context) {
 }
 
 func (h *Handler) handleInfo(c *gin.Context) {
-	info := gin.H{
+	out := struct {
-		"providers": h.providers,
+		util.Info
-		"go":        runtime.Version(),
+		Providers []string `json:"providers"`
-	}
+		Go        string
-	for k, v := range util.VersionInfo {
+	}{
-		info[k] = v
+		util.VersionInfo,
-	}
+		h.providers,
-	c.JSON(http.StatusOK, info)
+		strings.Replace(runtime.Version(), "go", "", 1),
+	}
+	c.JSON(http.StatusOK, out)
 }
 
 func (h *Handler) handleRecent(c *gin.Context) {

static/src/About/About.js

@@ -42,7 +42,7 @@ export default class AboutComponent extends Component {
                         </Table.Row>
                         <Table.Row>
                             <Table.Cell>Go Version</Table.Cell>
-                            <Table.Cell>{info.go.replace("go", "")}</Table.Cell>
+                            <Table.Cell>{info.go}</Table.Cell>
                         </Table.Row>
                         <Table.Row>
                             <Table.Cell>React Version</Table.Cell>