Add get-latest-ethereum-client-version command to CTF Utils CMD Tool (

#964)

* Add `get-latest-ethereum-client-version` command to CTF Utils CMD Tool

* fix

utils/cmd/internal/get_latest_version_commands.go

@@ -0,0 +1,30 @@
+package internal
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+
+	"github.com/smartcontractkit/chainlink-testing-framework/docker/test_env"
+)
+
+var GetLatestEthereumClientVersionCmd = &cobra.Command{
+	Use:   "get-latest-ethereum-client-version",
+	Short: "Get the latest Ethereum client release version from Github",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if len(args) != 1 {
+			return fmt.Errorf("please provide the repository in the format 'org/repo:tag'")
+		}
+
+		repo := args[0]
+
+		latest, err := test_env.FetchLatestEthereumClientDockerImageVersionIfNeed(repo)
+		if err != nil {
+			return fmt.Errorf("error fetching release information: %v", err)
+		}
+
+		fmt.Println(strings.Split(latest, ":")[1])
+		return nil
+	},
+}

utils/cmd/main.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"log"
+	"os"
+	"time"
+
+	"github.com/spf13/cobra"
+	"golang.org/x/net/context"
+
+	"github.com/smartcontractkit/chainlink-testing-framework/utils/cmd/internal"
+)
+
+var rootCmd = &cobra.Command{
+	Use:   "ctf-utils",
+	Short: "CTF Utils Tool",
+}
+
+func init() {
+	ctx, cancel := context.WithTimeout(context.Background(), time.Minute*1)
+	defer cancel()
+
+	internal.GetLatestEthereumClientVersionCmd.SetContext(ctx)
+
+	rootCmd.AddCommand(internal.GetLatestEthereumClientVersionCmd)
+}
+
+func main() {
+	if err := rootCmd.Execute(); err != nil {
+		log.Println(err)
+		os.Exit(1)
+	}
+}