Version Flag (#70)

* Test ldflags

Signed-off-by: Hengyuan <[email protected]>

* add version flag to rootCmd

Signed-off-by: Hengyuan <[email protected]>

* cleanup

Signed-off-by: Hengyuan <[email protected]>

Author: jhengy

.goreleaser.yaml

@@ -20,6 +20,7 @@ before:
     - go mod download
 builds:
 - binary: getenvoy
+  ldflags: "-s -w -X github.com/tetratelabs/getenvoy/pkg/cmd.cliVersion={{.Version}}"
   main: ./cmd/getenvoy/main.go
   env:
   - CGO_ENABLED=0

pkg/cmd/root.go

@@ -19,6 +19,9 @@ import (
 	"github.com/tetratelabs/getenvoy/pkg/manifest"
 )
 
+// cliVersion exposed by goreleaser
+var cliVersion string
+
 // NewRoot create a new root command and sets the cliVersion to the passed variable
 // TODO: Add version support on the command
 func NewRoot() *cobra.Command {
@@ -39,6 +42,7 @@ var (
 		Short:             "Fetch, deploy and debug Envoy",
 		Long: `Manage full lifecycle of Envoy including fetching binaries,
 bootstrap generation and automated collection of access logs, Envoy state and machine state.`,
+		Version: cliVersion,
 	}
 
 	manifestURL string