chore: release MediaStationGo v0.0.31

internal/service/fileid_other.go

@@ -1,4 +1,4 @@
-//go:build !unix
+//go:build !unix && !windows
 
 package service
 

internal/service/fileid_windows.go

@@ -0,0 +1,39 @@
+//go:build windows
+
+package service
+
+import (
+	"fmt"
+
+	"golang.org/x/sys/windows"
+)
+
+func fileIdentity(path string) (string, bool) {
+	ptr, err := windows.UTF16PtrFromString(path)
+	if err != nil {
+		return "", false
+	}
+	handle, err := windows.CreateFile(
+		ptr,
+		windows.GENERIC_READ,
+		windows.FILE_SHARE_READ|windows.FILE_SHARE_WRITE|windows.FILE_SHARE_DELETE,
+		nil,
+		windows.OPEN_EXISTING,
+		windows.FILE_FLAG_BACKUP_SEMANTICS,
+		0,
+	)
+	if err != nil {
+		return "", false
+	}
+	defer windows.CloseHandle(handle)
+
+	var info windows.ByHandleFileInformation
+	if err := windows.GetFileInformationByHandle(handle, &info); err != nil {
+		return "", false
+	}
+	if info.NumberOfLinks < 2 {
+		return "", false
+	}
+	fileIndex := (uint64(info.FileIndexHigh) << 32) | uint64(info.FileIndexLow)
+	return fmt.Sprintf("%d:%d", info.VolumeSerialNumber, fileIndex), true
+}