s3 support

internal/app/files/diskspace_windows.go

@@ -0,0 +1,19 @@
+//go:build windows
+
+package files
+
+import "golang.org/x/sys/windows"
+
+// localDiskFreeBytes returns free (available to the calling user) and total
+// bytes for the volume containing path.
+func localDiskFreeBytes(path string) (free, total int64, err error) {
+	ptr, err := windows.UTF16PtrFromString(path)
+	if err != nil {
+		return 0, 0, err
+	}
+	var freeAvail, totalBytes, totalFree uint64
+	if err := windows.GetDiskFreeSpaceEx(ptr, &freeAvail, &totalBytes, &totalFree); err != nil {
+		return 0, 0, err
+	}
+	return int64(freeAvail), int64(totalBytes), nil
+}