From 68ba6d6c90f95c4405c05d03598c24186760bcd7 Mon Sep 17 00:00:00 2001
From: Ishan Tyagi <ishantyagi25@gmail.com>
Date: Fri, 11 Aug 2023 15:47:18 +0530
Subject: [PATCH] Added bbolt command line version flag to get runtime
 information.

Signed-off-by: Ishan Tyagi <ishantyagi25@gmail.com>
---
 cmd/bbolt/README.md          | 16 ++++++++++++++++
 cmd/bbolt/command_root.go    |  1 +
 cmd/bbolt/command_version.go | 22 ++++++++++++++++++++++
 cmd/bbolt/main.go            |  1 +
 version/version.go           | 19 +++++++++++++++++++
 5 files changed, 59 insertions(+)
 create mode 100644 cmd/bbolt/command_version.go
 create mode 100644 version/version.go

diff --git a/cmd/bbolt/README.md b/cmd/bbolt/README.md
index 851f380ba..8c7785456 100644
--- a/cmd/bbolt/README.md
+++ b/cmd/bbolt/README.md
@@ -40,6 +40,7 @@
 
   The commands are:
 
+      version     prints the current version of bbolt
       bench       run synthetic benchmark against bbolt
       buckets     print a list of buckets
       check       verifies integrity of bbolt database
@@ -60,6 +61,21 @@
 
 ## Analyse bbolt database with bbolt command line
 
+### version
+
+- `version` print the current version information of bbolt command-line.
+- usage:
+  `bbolt version`
+
+  Example:
+  
+  ```bash
+  $bbolt version
+  bbolt version: 1.3.7
+  Go Version: go1.20.7
+  Go OS/Arch: darwin/arm64
+  ```
+
 ### info
 
 - `info` print the basic information about the given Bbolt database.
diff --git a/cmd/bbolt/command_root.go b/cmd/bbolt/command_root.go
index b960df898..31a174080 100644
--- a/cmd/bbolt/command_root.go
+++ b/cmd/bbolt/command_root.go
@@ -17,6 +17,7 @@ func NewRootCommand() *cobra.Command {
 	}
 
 	rootCmd.AddCommand(
+		newVersionCobraCommand(),
 		newSurgeryCobraCommand(),
 	)
 
diff --git a/cmd/bbolt/command_version.go b/cmd/bbolt/command_version.go
new file mode 100644
index 000000000..cfa1cf583
--- /dev/null
+++ b/cmd/bbolt/command_version.go
@@ -0,0 +1,22 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+	"go.etcd.io/bbolt/version"
+)
+
+func newVersionCobraCommand() *cobra.Command {
+	versionCmd := &cobra.Command{
+		Use:   "version",
+		Short: "print the current version of bbolt",
+		Long:  "print the current version of bbolt",
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Fprintln(os.Stdout, version.PrintVersionInfo())
+		},
+	}
+
+	return versionCmd
+}
diff --git a/cmd/bbolt/main.go b/cmd/bbolt/main.go
index 364b1fe21..7115471c0 100644
--- a/cmd/bbolt/main.go
+++ b/cmd/bbolt/main.go
@@ -156,6 +156,7 @@ Usage:
 
 The commands are:
 
+    version     print the current version of bbolt
     bench       run synthetic benchmark against bbolt
     buckets     print a list of buckets
     check       verifies integrity of bbolt database
diff --git a/version/version.go b/version/version.go
new file mode 100644
index 000000000..8191f6235
--- /dev/null
+++ b/version/version.go
@@ -0,0 +1,19 @@
+package version
+
+import (
+	"fmt"
+	"runtime"
+)
+
+var (
+	// Version shows the last bbolt binary version released.
+	Version = "1.3.7"
+)
+
+// PrintVersionInfo prints the information regrading version.
+func PrintVersionInfo() string {
+	return fmt.Sprintf(
+		"bbolt version: %s \nGo Version: %s \nGo OS/Arch: %s/%s",
+		Version, runtime.Version(), runtime.GOOS, runtime.GOARCH,
+	)
+}