From 542a6851b8743171c31ad5a0f6928395d7db0f71 Mon Sep 17 00:00:00 2001
From: Jan-Lukas Wynen <jan-lukas.wynen@ess.eu>
Date: Mon, 9 Oct 2023 15:21:05 +0200
Subject: [PATCH] Deprecate support for pydantic v1

---
 docs/release-notes.rst                     |  2 ++
 pyproject.toml                             |  1 +
 src/scitacean/_internal/pydantic_compat.py | 17 ++++++++++++++++-
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 3e30ddb2..d427f262 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -60,6 +60,8 @@ Documentation
 Deprecations
 ~~~~~~~~~~~~
 
+* Deprecated support for Pydantic v1. It is scheduled for full removal in release 23.12.0.
+
 Stability, Maintainability, and Testing
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
diff --git a/pyproject.toml b/pyproject.toml
index b787a7f3..4f40c871 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -64,6 +64,7 @@ filterwarnings = [
     "ignore:Cannot check if local file:UserWarning",
     # Internal deprecations.
     "ignore:SSHFileTransfer is deprecated:scitacean.VisibleDeprecationWarning",
+    "ignore:Support for Pydantic v1 is deprecated:scitacean.VisibleDeprecationWarning",
     # From fabric / invoke
     "ignore:_SixMetaPathImporter:ImportWarning",
     "ignore:the imp module is deprecated in favour of importlib:DeprecationWarning",
diff --git a/src/scitacean/_internal/pydantic_compat.py b/src/scitacean/_internal/pydantic_compat.py
index e935b550..b040e431 100644
--- a/src/scitacean/_internal/pydantic_compat.py
+++ b/src/scitacean/_internal/pydantic_compat.py
@@ -6,7 +6,22 @@
 
 
 def is_pydantic_v1() -> bool:
-    return pydantic.__version__.split(".", 1)[0] == "1"
+    if pydantic.__version__.split(".", 1)[0] == "1":
+        import warnings
+
+        from ..warning import VisibleDeprecationWarning
+
+        warnings.warn(
+            "Support for Pydantic v1 is deprecated in Scitacean"
+            "RELEASE_PLACEHOLDER and will be removed in Scitacean v23.12.0."
+            "If you cannot update your Pydantic version, please comment in this issue:"
+            " https://github.com/SciCatProject/scitacean/issues/158",
+            VisibleDeprecationWarning,
+            stacklevel=2,
+        )
+        return True
+
+    return False
 
 
 def field_validator(