Feature:Inject build information into the binary

* update version handler.
* update .gorealeser.
* update .Taskifile.
* update release action.

.github/workflows/release.yml

@@ -18,11 +18,17 @@ jobs:
         uses: actions/setup-go@v2
         with:
           go-version: 1.14
+
+      - name: capture current date
+        id: date
+        run: echo "::set-output name=date::$(date -u '+%Y-%m-%d-%H:%M:%S-%Z')"
+
       -
         name: release
         uses: goreleaser/goreleaser-action@v2
         with:
           version: latest
           args: release --rm-dist
         env:
+          DATE: ${{ steps.date.outputs.date }}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.goreleaser.yml

@@ -13,6 +13,10 @@ builds:
       - windows
       - darwin
     binary: helmes
+    ldflags:
+    - -X "github.com/rugwirobaker/helmes.version={{ .Version }}"
+    - -X "github.com/rugwirobaker/helmes.buildDate={{ .Env.DATE }}"
+
 archives:
   - replacements:
       darwin: Darwin

Taskfile.yml

@@ -6,7 +6,13 @@ tasks:
   build:
     cmds:
       - echo "compiling binary..."
-      - CGO_ENABLED=0 go build -o bin/helmes ./cmd/helmes
+      - CGO_ENABLED=0 go build -ldflags="{{.LDFLAGS}}" -o bin/helmes ./cmd/helmes
+    vars:
+      VERSION:
+        sh: git rev-parse --short HEAD
+      DATE:
+        sh: date -u +%Y-%m-%d-%H:%M:%S-%Z
+      LDFLAGS: "-X github.com/rugwirobaker/helmes.version={{.VERSION}} -X github.com/rugwirobaker/helmes.buildDate={{.DATE}}"
 
   run:
     deps: [build]

api/handlers.go

@@ -34,11 +34,11 @@ func SMSHandler(svc helmes.Service) http.HandlerFunc {
 // VersionHandler ...
 func VersionHandler(svc helmes.Service) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		ver, err := svc.Version(r.Context())
+		build, err := svc.Version(r.Context())
 		if err != nil {
 			http.Error(w, err.Error(), 500)
 		}
-		w.Write([]byte(ver))
+		JSON(w, build, http.StatusOK)
 	}
 }
 

build.go

@@ -0,0 +1,24 @@
+package helmes
+
+import "fmt"
+
+// Build information
+type Build struct {
+	Version string `json:"version,omitempty"`
+	Date    string `json:"date,omitempty"`
+}
+
+var version, buildDate string = "unset", "unset"
+
+// String version of Build
+func String() string {
+	return fmt.Sprintf("Build Details:\n\tVersion:\t%s\n\tDate:\t\t%s", version, buildDate)
+}
+
+// Data returns build details as a struct
+func Data() *Build {
+	return &Build{
+		Version: version,
+		Date:    buildDate,
+	}
+}

helmes.go

@@ -25,7 +25,7 @@ type Service interface {
 	Send(context.Context, *SMS) (*Report, error)
 
 	//Version returns helmes's current running version
-	Version(context.Context) (string, error)
+	Version(context.Context) (*Build, error)
 }
 
 type service struct {
@@ -74,8 +74,8 @@ func (s *service) Send(ctx context.Context, message *SMS) (*Report, error) {
 	return convertReport(report), nil
 }
 
-func (s *service) Version(ctx context.Context) (string, error) {
-	return "v0.1.0", nil
+func (s *service) Version(ctx context.Context) (*Build, error) {
+	return Data(), nil
 }
 
 func convertReport(report *sms.Report) *Report {