From 569363530ac7734f85eae8714e52edc1a793935e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=98=AD?= <81747598+lan-yonghui@users.noreply.github.com>
Date: Mon, 23 Mar 2026 15:52:04 +0800
Subject: [PATCH] fix: Fix the issue of preserving archive modification time
 during the decompression process of gz files (#12297)

---
 agent/utils/files/file_op.go | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/agent/utils/files/file_op.go b/agent/utils/files/file_op.go
index 31b786318..3788f509a 100644
--- a/agent/utils/files/file_op.go
+++ b/agent/utils/files/file_op.go
@@ -999,6 +999,11 @@ func ZipFile(files []archiver.File, dst afero.File) error {
 }
 
 func (f FileOp) DecompressGzFile(srcFile, dst string) error {
+	var archiveModTime time.Time
+	if st, err := f.Fs.Stat(srcFile); err == nil {
+		archiveModTime = st.ModTime()
+	}
+
 	in, err := f.Fs.Open(srcFile)
 	if err != nil {
 		return fmt.Errorf("open source file failed: %w", err)
@@ -1030,8 +1035,8 @@ func (f FileOp) DecompressGzFile(srcFile, dst string) error {
 		return fmt.Errorf("copy content failed: %w", err)
 	}
 
-	if !gr.ModTime.IsZero() {
-		_ = os.Chtimes(outPath, gr.ModTime, gr.ModTime)
+	if !archiveModTime.IsZero() {
+		_ = os.Chtimes(outPath, archiveModTime, archiveModTime)
 	}
 
 	return nil