131 make a simulated detector that can write hdf files

.devcontainer/devcontainer.json

@@ -1,47 +1,44 @@
 // For format details, see https://containers.dev/implementors/json_reference/
 {
-    "name": "Python 3 Developer Container",
-    "build": {
-        "dockerfile": "Dockerfile",
-        "target": "build",
-        // Only upgrade pip, we will install the project below
-        "args": {
-            "PIP_OPTIONS": "--upgrade pip"
-        },
-    },
-    "remoteEnv": {
-        "DISPLAY": "${localEnv:DISPLAY}"
-    },
-    // Set *default* container specific settings.json values on container create.
-    "settings": {
-        "python.defaultInterpreterPath": "/venv/bin/python"
-    },
-    "customizations": {
-        "vscode": {
-            // Add the IDs of extensions you want installed when the container is created.
-            "extensions": [
-                "ms-python.python",
-                "tamasfe.even-better-toml",
-                "redhat.vscode-yaml",
-                "ryanluker.vscode-coverage-gutters"
-            ]
-        }
-    },
-    // Make sure the files we are mapping into the container exist on the host
-    "initializeCommand": "bash -c 'for i in $HOME/.inputrc; do [ -f $i ] || touch $i; done'",
-    "runArgs": [
-        "--net=host",
-        "--security-opt=label=type:container_runtime_t"
-    ],
-    "mounts": [
-        "source=${localEnv:HOME}/.ssh,target=/root/.ssh,type=bind",
-        "source=${localEnv:HOME}/.inputrc,target=/root/.inputrc,type=bind",
-        // map in home directory - not strictly necessary but useful
-        "source=${localEnv:HOME},target=${localEnv:HOME},type=bind,consistency=cached"
-    ],
-    // make the workspace folder the same inside and outside of the container
-    "workspaceMount": "source=${localWorkspaceFolder},target=${localWorkspaceFolder},type=bind",
-    "workspaceFolder": "${localWorkspaceFolder}",
-    // After the container is created, install the python project in editable form
-    "postCreateCommand": "pip install -e .[dev] --config-settings editable_mode=compat"
+  "name": "Python 3 Developer Container",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "target": "build",
+    // Only upgrade pip, we will install the project below
+    "args": {
+      "PIP_OPTIONS": "--upgrade pip"
+    }
+  },
+  "remoteEnv": {
+    "DISPLAY": "${localEnv:DISPLAY}"
+  },
+  "customizations": {
+    "vscode": {
+      // Set *default* container specific settings.json values on container create.
+      // "settings": {
+      //   "python.defaultInterpreterPath": "/venv/bin/python"
+      // },
+      // Add the IDs of extensions you want installed when the container is created.
+      "extensions": [
+        "ms-python.python",
+        "tamasfe.even-better-toml",
+        "redhat.vscode-yaml",
+        "ryanluker.vscode-coverage-gutters"
+      ]
+    }
+  },
+  // Make sure the files we are mapping into the container exist on the host
+  "initializeCommand": "bash -c 'for i in $HOME/.inputrc; do [ -f $i ] || touch $i; done'",
+  "runArgs": ["--net=host", "--security-opt=label=type:container_runtime_t"],
+  "mounts": [
+    "source=${localEnv:HOME}/.ssh,target=/root/.ssh,type=bind",
+    "source=${localEnv:HOME}/.inputrc,target=/root/.inputrc,type=bind",
+    // map in home directory - not strictly necessary but useful
+    "source=${localEnv:HOME},target=${localEnv:HOME},type=bind,consistency=cached"
+  ],
+  // make the workspace folder the same inside and outside of the container
+  "workspaceMount": "source=${localWorkspaceFolder},target=${localWorkspaceFolder},type=bind",
+  "workspaceFolder": "${localWorkspaceFolder}",
+  // After the container is created, install the python project in editable form
+  "postCreateCommand": "pip install -e .[dev] --config-settings editable_mode=compat"
 }

pyproject.toml

@@ -52,8 +52,7 @@ dev = [
     "pre-commit",
     "pydata-sphinx-theme>=0.12",
     "pyepics>=3.4.2",
-    "pyside6",
-    "pyside6-stubs",
+    "pyside6==6.6.2",
     "pytest",
     "pytest-asyncio",
     "pytest-cov",

src/ophyd_async/epics/areadetector/writers/hdf_writer.py

@@ -109,12 +109,17 @@ async def collect_stream_docs(
         await self.hdf.flush_now.set(True)
         if indices_written:
             if not self._file:
+                path = Path(await self.hdf.full_file_name.get_value())
                 self._file = _HDFFile(
                     self._directory_provider(),
                     # See https://github.com/bluesky/ophyd-async/issues/122
-                    Path(await self.hdf.full_file_name.get_value()),
+                    path,
                     self._datasets,
                 )
+                # stream resource says "here is a dataset",
+                # stream datum says "here are N frames in that stream resource",
+                # you get one stream resource and many stream datums per scan
+
                 for doc in self._file.stream_resources():
                     yield "stream_resource", doc
             for doc in self._file.stream_data(indices_written):

src/ophyd_async/sim/__init__.py

@@ -0,0 +1,11 @@
+from .pattern_generator import PatternGenerator
+from .sim_pattern_detector_control import SimPatternDetectorControl
+from .sim_pattern_detector_writer import SimPatternDetectorWriter
+from .sim_pattern_generator import SimPatternDetector
+
+__all__ = [
+    "PatternGenerator",
+    "SimPatternDetectorControl",
+    "SimPatternDetectorWriter",
+    "SimPatternDetector",
+]