From 36a8a2d278f02e45c5eff86496fb95c73b47b2ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Lebleu?= <jerome@maroufle.fr>
Date: Sat, 7 May 2016 03:17:46 +0200
Subject: [PATCH] [enh] Try to remount directory as read-only in ynh_backup
 (wip #298)

---
 data/helpers.d/filesystem | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/data/helpers.d/filesystem b/data/helpers.d/filesystem
index 49024981b..db12fb761 100644
--- a/data/helpers.d/filesystem
+++ b/data/helpers.d/filesystem
@@ -38,6 +38,10 @@ ynh_backup() {
         eval $SUDO_CMD mkdir -p "${DESTPATH}"
 
         if sudo mount --rbind "${SRCPATH}" "${DESTPATH}"; then
+            # try to remount destination directory as read-only
+            sudo mount -o remount,ro "${DESTPATH}" \
+              || sudo mount -o remount,ro,bind "${SRCPATH}" "${DESTPATH}" \
+              || true
             return 0
         else
             CAN_BIND=0