From e657b6416518d93796ecd4efaa0e3df736bda3cb Mon Sep 17 00:00:00 2001
From: Sven Augustin <sven.augustin@psi.ch>
Date: Mon, 2 Jun 2025 11:02:44 +0200
Subject: [PATCH] if there is no change, do not upload (force=True allows to
 force the upload)

---
 slic/core/acquisition/sfacquisition.py | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/slic/core/acquisition/sfacquisition.py b/slic/core/acquisition/sfacquisition.py
index 8230e48cb..15307f1db 100644
--- a/slic/core/acquisition/sfacquisition.py
+++ b/slic/core/acquisition/sfacquisition.py
@@ -172,13 +172,17 @@ class SFAcquisition(BaseAcquisition):
             pvs = self.default_pvs
         return self.client.set_config_pvs(pvs)
 
-    def update_config_pvs(self, pvs=None):
+    def update_config_pvs(self, pvs=None, force=False):
         if pvs is None:
             pvs = self.default_pvs
         current = self.get_config_pvs()
-        pvs = set(pvs) | set(current)
-        pvs = sorted(pvs)
-        return self.client.set_config_pvs(pvs)
+        pvs = set(pvs)
+        current = set(current)
+        merged = pvs | current
+        if not force and merged == pvs:
+            return
+        merged = sorted(merged)
+        return self.client.set_config_pvs(merged)
 
     def diff_config_pvs(self, pvs=None):
         if pvs is None: