2 files changed, 21 insertions, 0 deletions
diff --git a/commands/execenv/env.go b/commands/execenv/env.go
index b383dde0..4be7c247 100644
--- a/commands/execenv/env.go
+++ b/commands/execenv/env.go
@@ -1,6 +1,7 @@
 package execenv
 
 import (
+	"encoding/json"
 	"fmt"
 	"io"
 	"os"
@@ -38,6 +39,7 @@ type Out interface {
 	Printf(format string, a ...interface{})
 	Print(a ...interface{})
 	Println(a ...interface{})
+	PrintJSON(v interface{}) error
 
 	// String returns what have been written in the output before, as a string.
 	// This only works in test scenario.
@@ -66,6 +68,15 @@ func (o out) Println(a ...interface{}) {
 	_, _ = fmt.Fprintln(o, a...)
 }
 
+func (o out) PrintJSON(v interface{}) error {
+	raw, err := json.MarshalIndent(v, "", "    ")
+	if err != nil {
+		return err
+	}
+	o.Println(string(raw))
+	return nil
+}
+
 func (o out) String() string {
 	panic("only work with a test env")
 }
diff --git a/commands/execenv/env_testing.go b/commands/execenv/env_testing.go
index 5761b410..34eafc9c 100644
--- a/commands/execenv/env_testing.go
+++ b/commands/execenv/env_testing.go
@@ -2,6 +2,7 @@ package execenv
 
 import (
 	"bytes"
+	"encoding/json"
 	"fmt"
 	"testing"
 
@@ -27,6 +28,15 @@ func (te *TestOut) Println(a ...interface{}) {
 	_, _ = fmt.Fprintln(te.Buffer, a...)
 }
 
+func (te *TestOut) PrintJSON(v interface{}) error {
+	raw, err := json.MarshalIndent(v, "", "    ")
+	if err != nil {
+		return err
+	}
+	te.Println(string(raw))
+	return nil
+}
+
 func NewTestEnv(t *testing.T) *Env {
 	t.Helper()