local-ic version

local-interchain/Makefile

@@ -1,8 +1,17 @@
 #!/usr/bin/make -f
 
 CWD := $(dir $(abspath $(firstword $(MAKEFILE_LIST))))
+COMMIT := $(shell git log -1 --format='%H')
 
-ldflags = -X main.MakeFileInstallDirectory=$(CWD)
+# don't override user values
+ifeq (,$(VERSION))
+  VERSION := $(shell git describe --tags --always)
+  ifeq (,$(VERSION))
+    VERSION := $(COMMIT)
+  endif
+endif
+
+ldflags = -X main.MakeFileInstallDirectory=$(CWD) -X main.Version=$(VERSION)
 ldflags := $(strip $(ldflags))
 BUILD_FLAGS := -ldflags '$(ldflags)'
 

local-interchain/cmd/local-ic/main.go

@@ -3,13 +3,26 @@ package main
 import (
 	"fmt"
 	"os"
+
+	"github.com/spf13/cobra"
 )
 
+// set in the Makefile
+var Version = ""
+
 func main() {
 	rootCmd.AddCommand(chainsCmd)
 	rootCmd.AddCommand(newChainCmd)
 	rootCmd.AddCommand(startCmd)
 	rootCmd.AddCommand(interactCmd)
+	rootCmd.AddCommand(&cobra.Command{
+		Use:     "version",
+		Aliases: []string{"ver"},
+		Short:   "Print the version of Local-IC",
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Print(Version)
+		},
+	})
 
 	if err := rootCmd.Execute(); err != nil {
 		fmt.Fprintf(os.Stderr, "error while executing your CLI. Err: %v\n", err)