Merge pull request #4553 from CommanderRoot/add-version-json

Add --json option to version command

changelog/unreleased/issue-4547

@@ -0,0 +1,7 @@
+Enhancement: Add support for `--json` option to `version` command
+
+Restic now supports outputting restic version and used go version, OS and
+architecture via JSON when using the version command.
+
+https://github.com/restic/restic/issues/4547
+https://github.com/restic/restic/pull/4553

cmd/restic/cmd_version.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
 	"runtime"
 
@@ -21,8 +22,31 @@ Exit status is 0 if the command was successful, and non-zero if there was any er
 `,
 	DisableAutoGenTag: true,
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Printf("restic %s compiled with %v on %v/%v\n",
-			version, runtime.Version(), runtime.GOOS, runtime.GOARCH)
+		if globalOptions.JSON {
+			type jsonVersion struct {
+				Version   string `json:"version"`
+				GoVersion string `json:"go_version"`
+				GoOS      string `json:"go_os"`
+				GoArch    string `json:"go_arch"`
+			}
+
+			jsonS := jsonVersion{
+				Version:   version,
+				GoVersion: runtime.Version(),
+				GoOS:      runtime.GOOS,
+				GoArch:    runtime.GOARCH,
+			}
+
+			err := json.NewEncoder(globalOptions.stdout).Encode(jsonS)
+			if err != nil {
+				Warnf("JSON encode failed: %v\n", err)
+				return
+			}
+		} else {
+			fmt.Printf("restic %s compiled with %v on %v/%v\n",
+				version, runtime.Version(), runtime.GOOS, runtime.GOARCH)
+		}
+
 	},
 }
 

doc/075_scripting.rst

@@ -576,3 +576,19 @@ The snapshots command returns a single JSON object.
 +------------------------------+-----------------------------------------------------+
 | ``compression_space_saving`` | Overall space saving due to compression             |
 +------------------------------+-----------------------------------------------------+
+
+
+version
+-------
+
+The version command returns a single JSON object.
+
++----------------+--------------------+
+| ``version``    | restic version     |
++----------------+--------------------+
+| ``go_version`` | Go compile version |
++----------------+--------------------+
+| ``go_os``      | Go OS              |
++----------------+--------------------+
+| ``go_arch``    | Go architecture    |
++----------------+--------------------+