From 6705bc10b84d778fbc285368dfef9178746aea28 Mon Sep 17 00:00:00 2001
From: mjgu <minjae@ab180.co>
Date: Tue, 16 Dec 2025 12:07:40 +0900
Subject: [PATCH 1/2] refactor: simplify legacy log header format

---
 Source/AppleLogger/Implement/LogService.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/AppleLogger/Implement/LogService.swift b/Source/AppleLogger/Implement/LogService.swift
index 61c03e2b..81a88b18 100644
--- a/Source/AppleLogger/Implement/LogService.swift
+++ b/Source/AppleLogger/Implement/LogService.swift
@@ -19,7 +19,7 @@ extension LogService {
         _ printBlock: (String) -> Void
     ) {
         let header = setting.isLegacyLogEnabled
-            ? "[\(setting.subsystem)][\(setting.category)]\n"
+            ? "[\(setting.subsystem)]"
             : ""
         
         guard setting.isPaginateLogEnabled, message.count > LoggerConstant.paginateSize

From 3583c52379b45e297a73c21362cbba24d06836a0 Mon Sep 17 00:00:00 2001
From: mjgu <minjae@ab180.co>
Date: Tue, 16 Dec 2025 12:26:51 +0900
Subject: [PATCH 2/2] refactor: split legacy log flag into subsystem and
 category options

---
 Source/AppleLogger/Data/LoggerSetting.swift   |  9 ++++++---
 Source/AppleLogger/Implement/LogService.swift | 13 ++++++++++---
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/Source/AppleLogger/Data/LoggerSetting.swift b/Source/AppleLogger/Data/LoggerSetting.swift
index 882c0960..a4d1e76e 100644
--- a/Source/AppleLogger/Data/LoggerSetting.swift
+++ b/Source/AppleLogger/Data/LoggerSetting.swift
@@ -14,9 +14,12 @@ public struct LoggerSetting {
     /// A variable indicating logger paginate log or not. Because of `os_log`'s 1024 length limit.
     public var isPaginateLogEnabled: Bool = false
     
-    /// A variable indicating logger use legacy log system or not.
-    public var isLegacyLogEnabled: Bool = false
-    
+    /// A variable indicating logger use legacy log subsystem header or not.
+    public var isLegacyLogSubsystemEnabled: Bool = false
+
+    /// A variable indicating logger use legacy log category header or not.
+    public var isLegacyLogCategoryEnabled: Bool = false
+
     /// A variable used for displaying `subsystem` value in console
     public let subsystem: String
     
diff --git a/Source/AppleLogger/Implement/LogService.swift b/Source/AppleLogger/Implement/LogService.swift
index 81a88b18..3319511c 100644
--- a/Source/AppleLogger/Implement/LogService.swift
+++ b/Source/AppleLogger/Implement/LogService.swift
@@ -18,9 +18,16 @@ extension LogService {
         _ message: String,
         _ printBlock: (String) -> Void
     ) {
-        let header = setting.isLegacyLogEnabled
-            ? "[\(setting.subsystem)]"
-            : ""
+        let header = {
+            var parts: [String] = []
+            if setting.isLegacyLogSubsystemEnabled {
+                parts.append("[\(setting.subsystem)]")
+            }
+            if setting.isLegacyLogCategoryEnabled {
+                parts.append("[\(setting.category)]")
+            }
+            return parts.isEmpty ? "" : parts.joined() + " "
+        }()
         
         guard setting.isPaginateLogEnabled, message.count > LoggerConstant.paginateSize
         else {