From f09f4371ab3e956cf81a10b2e38924c9519f7d82 Mon Sep 17 00:00:00 2001
From: Graeme Winter <graeme.winter@gmail.com>
Date: Thu, 27 Jul 2023 15:02:09 +0100
Subject: [PATCH 1/3] ESRF ID23-2

---
 newsfragments/XXX.feature                     |  1 +
 .../FormatNXmxEigerFilewriterESRFID232.py     | 34 +++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 newsfragments/XXX.feature
 create mode 100644 src/dxtbx/format/FormatNXmxEigerFilewriterESRFID232.py

diff --git a/newsfragments/XXX.feature b/newsfragments/XXX.feature
new file mode 100644
index 000000000..858c4fd8f
--- /dev/null
+++ b/newsfragments/XXX.feature
@@ -0,0 +1 @@
+``dxtbx``: add support for Eiger 9M on ESRF ID23-2 with vertical goniometer (which is not written into the image header)
\ No newline at end of file
diff --git a/src/dxtbx/format/FormatNXmxEigerFilewriterESRFID232.py b/src/dxtbx/format/FormatNXmxEigerFilewriterESRFID232.py
new file mode 100644
index 000000000..58d2fcb60
--- /dev/null
+++ b/src/dxtbx/format/FormatNXmxEigerFilewriterESRFID232.py
@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+import re
+
+import h5py
+
+from dxtbx.format.FormatNXmxEigerFilewriter import FormatNXmxEigerFilewriter
+
+DATA_FILE_RE = re.compile(r"data_\d{6}")
+
+
+class FormatNXmxEigerFilewriterESRFID232(FormatNXmxEigerFilewriter):
+    _cached_file_handle = None
+
+    @staticmethod
+    def understand(image_file):
+        with h5py.File(image_file) as handle:
+            if "/entry/instrument/detector/detector_number" in handle:
+                if (
+                    handle["/entry/instrument/detector/detector_number"][()]
+                    == b"E-18-0133"
+                ):
+                    return True
+        return False
+
+    def __init__(self, image_file, **kwargs):
+        """Initialise the image structure from the given file."""
+        super().__init__(image_file, **kwargs)
+
+    def _start(self):
+        super()._start()
+
+    def _goniometer(self):
+        return self._goniometer_factory.known_axis((0, 1, 0))

From 66efd56d6e720ff9db3d7f2531bf1b5c6eb9cd25 Mon Sep 17 00:00:00 2001
From: DiamondLightSource-build-server
 <DiamondLightSource-build-server@users.noreply.github.com>
Date: Thu, 27 Jul 2023 14:03:19 +0000
Subject: [PATCH 2/3] Rename newsfragments/XXX.feature to
 newsfragments/651.feature

---
 newsfragments/{XXX.feature => 651.feature} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename newsfragments/{XXX.feature => 651.feature} (100%)

diff --git a/newsfragments/XXX.feature b/newsfragments/651.feature
similarity index 100%
rename from newsfragments/XXX.feature
rename to newsfragments/651.feature

From c70f0997bcfbbe39aa13d0f62d1eeb92eb397098 Mon Sep 17 00:00:00 2001
From: Nicholas Devenish <ndevenish@gmail.com>
Date: Thu, 10 Aug 2023 15:58:26 +0100
Subject: [PATCH 3/3] Update 651.feature

---
 newsfragments/651.feature | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/newsfragments/651.feature b/newsfragments/651.feature
index 858c4fd8f..2f790c707 100644
--- a/newsfragments/651.feature
+++ b/newsfragments/651.feature
@@ -1 +1 @@
-``dxtbx``: add support for Eiger 9M on ESRF ID23-2 with vertical goniometer (which is not written into the image header)
\ No newline at end of file
+Add support for Eiger 9M on ESRF ID23-2, which has an undeclared vertical goniometer.