From 57016b06e485127cfc05eed330cef9b32d41f477 Mon Sep 17 00:00:00 2001
From: Dan Kanefsky <daniel.kanefsky@gmail.com>
Date: Tue, 9 Jan 2024 14:35:02 -0800
Subject: [PATCH] add version command

---
 Makefile       | 21 +++++++++++++++++++++
 cmd/flags.go   | 18 ++++++++++++++++++
 cmd/root.go    | 13 ++++++++-----
 cmd/version.go | 51 ++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 98 insertions(+), 5 deletions(-)
 create mode 100644 cmd/flags.go
 create mode 100644 cmd/version.go

diff --git a/Makefile b/Makefile
index 81becce..a112538 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,14 @@
+VERSION := $(shell echo $(shell git describe --tags) | sed 's/^v//')
+COMMIT  := $(shell git log -1 --format='%H')
+DIRTY := $(shell git status --porcelain | wc -l | xargs)
+
+ldflags = -X github.com/strangelove-ventures/noble-cctp-relayer/cmd.Version=$(VERSION) \
+				-X github.com/strangelove-ventures/noble-cctp-relayer/cmd.Commit=$(COMMIT) \
+				-X github.com/strangelove-ventures/noble-cctp-relayer/cmd.Dirty=$(DIRTY)
+
+ldflags += $(LDFLAGS)
+ldflags := $(strip $(ldflags))
+
 .PHONY: all format lint
 all: format lint
 
@@ -17,3 +28,13 @@ lint:
 	@echo "🤖 Running linter..."
 	@go run $(golangci_lint_cmd) run --timeout=10m
 	@echo "✅ Completed linting!"
+
+
+###############################################################################
+###                              Install                                    ###
+###############################################################################
+
+install: go.sum
+	@echo "🤖 Building noble-cctp-relayer..."
+	@go build -mod=readonly -ldflags '$(ldflags)' -o $(GOBIN)/noble-cctp-relayer main.go
+
diff --git a/cmd/flags.go b/cmd/flags.go
new file mode 100644
index 0000000..5843342
--- /dev/null
+++ b/cmd/flags.go
@@ -0,0 +1,18 @@
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+const (
+	flagJSON = "json"
+)
+
+func jsonFlag(v *viper.Viper, cmd *cobra.Command) *cobra.Command {
+	cmd.Flags().BoolP(flagJSON, "j", false, "returns the response in json format")
+	if err := v.BindPFlag(flagJSON, cmd.Flags().Lookup(flagJSON)); err != nil {
+		panic(err)
+	}
+	return cmd
+}
diff --git a/cmd/root.go b/cmd/root.go
index 0d18aa6..271b2ef 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -5,16 +5,17 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"strconv"
+
 	"github.com/cosmos/cosmos-sdk/crypto/keys/secp256k1"
 	"github.com/cosmos/cosmos-sdk/types/bech32"
 	"github.com/ethereum/go-ethereum/ethclient"
 	"github.com/gin-gonic/gin"
 	"github.com/strangelove-ventures/noble-cctp-relayer/cmd/ethereum"
 	"github.com/strangelove-ventures/noble-cctp-relayer/types"
-	"io"
-	"net/http"
-	"os"
-	"strconv"
 
 	"cosmossdk.io/log"
 	"github.com/rs/zerolog"
@@ -46,7 +47,9 @@ func init() {
 	rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "config.yaml", "")
 	rootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "")
 
-	rootCmd.AddCommand(startCmd)
+	rootCmd.AddCommand(
+		startCmd,
+		versionCmd)
 
 	cobra.OnInitialize(func() {
 		if verbose {
diff --git a/cmd/version.go b/cmd/version.go
new file mode 100644
index 0000000..1ead9cc
--- /dev/null
+++ b/cmd/version.go
@@ -0,0 +1,51 @@
+package cmd
+
+import (
+	"fmt"
+	"runtime"
+
+	"github.com/spf13/cobra"
+	"gopkg.in/yaml.v2"
+)
+
+var (
+	// Version defines the application version (defined at compile time)
+	Version = ""
+	Commit  = ""
+	Dirty   = ""
+)
+
+type versionInfo struct {
+	Version string `json:"version" yaml:"version"`
+	Commit  string `json:"commit" yaml:"commit"`
+	Go      string `json:"go" yaml:"go"`
+}
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Print the relayer version info",
+	RunE:  getVersionCmd,
+}
+
+func getVersionCmd(cmd *cobra.Command, args []string) error {
+	// jsn, err := cmd.Flags().GetBool(flagJSON)
+	// if err != nil {
+	// 	return err
+	// }
+
+	commit := Commit
+	if Dirty != "0" {
+		commit += " (dirty)"
+	}
+
+	verInfo := versionInfo{
+		Version: Version,
+		Commit:  commit,
+		Go:      fmt.Sprintf("%s %s/%s", runtime.Version(), runtime.GOOS, runtime.GOARCH),
+	}
+
+	bz, err := yaml.Marshal(&verInfo)
+
+	fmt.Fprintln(cmd.OutOrStdout(), string(bz))
+	return err
+}