fix: Make terraform init JSON log timestamps include millisecond precision (#37818)

* fix: terraform init log timestamps include millisecond precision

* docs: add changelog entry

Author: Emyrk

.changes/v1.15/ENHANCEMENTS-20251027-132238.yaml

@@ -0,0 +1,5 @@
+kind: ENHANCEMENTS
+body: terraform init log timestamps include millisecond precision
+time: 2025-10-27T13:22:38.714891768-05:00
+custom:
+    Issue: "37818"

internal/command/views/init.go

@@ -4,8 +4,10 @@
 package views
 
 import (
+	"encoding/json"
 	"fmt"
 	"strings"
+	"time"
 
 	"github.com/hashicorp/terraform/internal/command/arguments"
 	"github.com/hashicorp/terraform/internal/tfdiags"
@@ -95,21 +97,18 @@ func (v *InitJSON) Output(messageCode InitMessageCode, params ...any) {
 		return
 	}
 
-	// Logged data includes by default:
-	// @level as "info"
-	// @module as "terraform.ui" (See NewJSONView)
-	// @timestamp formatted in the default way
-	//
-	// In the method below we:
-	// * Set @message as the first argument value
-	// * Annotate with extra data:
-	//     "type":"init_output"
-	//     "message_code":"<value>"
-	v.view.log.Info(
-		preppedMessage,
-		"type", "init_output",
-		"message_code", string(messageCode),
-	)
+	current_timestamp := time.Now().UTC().Format(hclog.TimeFormat)
+	json_data := map[string]string{
+		"@level":       "info",
+		"@message":     preppedMessage,
+		"@module":      "terraform.ui",
+		"@timestamp":   current_timestamp,
+		"type":         "init_output",
+		"message_code": string(messageCode),
+	}
+
+	init_output, _ := json.Marshal(json_data)
+	v.view.view.streams.Println(string(init_output))
 }
 
 func (v *InitJSON) LogInitMessage(messageCode InitMessageCode, params ...any) {