[Feature] Added more information to the version command (#688)

* Added more information to the version command
* Added commit hash info
* Added build timestamp info
* Added git branch info

Makefile

@@ -19,8 +19,15 @@ protoc:
 .PHONY: build
 build:
 	$(eval LATEST_VERSION = $(shell git describe --tags --abbrev=0))
-	$(eval COMMIT_HASH = $(shell git rev-parse --short HEAD))
-	go build -ldflags="-X 'github.com/0xPolygon/polygon-edge/versioning.Version=$(LATEST_VERSION)+$(COMMIT_HASH)'" main.go
+	$(eval COMMIT_HASH = $(shell git rev-parse HEAD))
+	$(eval BRANCH = $(shell git rev-parse --abbrev-ref HEAD | tr -d '\040\011\012\015\n'))
+	$(eval TIME = $(shell date))
+	go build -o polygon-edge -ldflags="\
+    	-X 'github.com/0xPolygon/polygon-edge/versioning.Version=$(LATEST_VERSION)' \
+		-X 'github.com/0xPolygon/polygon-edge/versioning.Commit=$(COMMIT_HASH)'\
+		-X 'github.com/0xPolygon/polygon-edge/versioning.Branch=$(BRANCH)'\
+		-X 'github.com/0xPolygon/polygon-edge/versioning.BuildTime=$(TIME)'" \
+	main.go
 
 .PHONY: lint
 lint:

command/version/result.go

@@ -1,9 +1,28 @@
 package version
 
+import (
+	"bytes"
+	"fmt"
+	"github.com/0xPolygon/polygon-edge/command/helper"
+)
+
 type VersionResult struct {
-	Version string `json:"version"`
+	Version   string `json:"version"`
+	Commit    string `json:"commit"`
+	Branch    string `json:"branch"`
+	BuildTime string `json:"buildTime"`
 }
 
 func (r *VersionResult) GetOutput() string {
-	return r.Version
+	var buffer bytes.Buffer
+
+	buffer.WriteString("\n[VERSION INFO]\n")
+	buffer.WriteString(helper.FormatKV([]string{
+		fmt.Sprintf("Release version|%s", r.Version),
+		fmt.Sprintf("Git branch|%s", r.Branch),
+		fmt.Sprintf("Commit hash|%s", r.Commit),
+		fmt.Sprintf("Build time|%s", r.BuildTime),
+	}))
+
+	return buffer.String()
 }

command/version/version.go

@@ -21,7 +21,10 @@ func runCommand(cmd *cobra.Command, _ []string) {
 
 	outputter.SetCommandResult(
 		&VersionResult{
-			Version: versioning.Version,
+			Version:   versioning.Version,
+			Commit:    versioning.Commit,
+			Branch:    versioning.Branch,
+			BuildTime: versioning.BuildTime,
 		},
 	)
 }

versioning/versioning.go

@@ -2,8 +2,13 @@ package versioning
 
 var (
 	// Version is the main version at the moment.
+	// Commit is the git commit that the binary was built on
+	// BuildTime is the timestamp of the build
 	// Embedded by --ldflags on build time
 	// Versioning should follow the SemVer guidelines
 	// https://semver.org/
-	Version = "v0.1.0"
+	Version   string
+	Branch    string
+	Commit    string
+	BuildTime string
 )