Add VS Code development environment

.editorconfig

@@ -0,0 +1,12 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true

.vscode/extensions.json

@@ -0,0 +1,13 @@
+{
+	// See https://go.microsoft.com/fwlink/?LinkId=827846 to learn about workspace recommendations.
+	// Extension identifier format: ${publisher}.${name}. Example: vscode.csharp
+
+	// List of extensions which should be recommended for users of this workspace.
+	"recommendations": [
+		"ms-python.python",
+	],
+	// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
+	"unwantedRecommendations": [
+
+	]
+}

.vscode/launch.json

@@ -0,0 +1,21 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Python: Remote Attach",
+      "type": "debugpy",
+      "request": "attach",
+      "connect": {
+        "host": "localhost",
+        "port": 5678
+      },
+      "pathMappings": [
+        {
+          "localRoot": "${workspaceFolder}",
+          "remoteRoot": "${workspaceFolder}"
+        }
+      ],
+      "justMyCode": false
+    },
+  ]
+}

.vscode/tasks.json

@@ -0,0 +1,65 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "Install dependencies",
+            "type": "shell",
+            "command": "pip install debugpy \"sqlalchemy~=1.3.22\" \"geoalchemy2>=0.9.0\"",
+            "windows": {
+                "options": {
+                    "shell": {
+                        "executable": "C:\\OSGeo4W\\OSGeo4W.bat"
+                    }
+                }
+            },
+            "problemMatcher": []
+        },
+        {
+            "label": "docker-db",
+            "type": "docker-compose",
+            "dockerCompose": {
+                "up": {
+                    "detached": true,
+                    "build": false,
+                    "services": [
+                        "db"
+                    ]
+                },
+                "files": [
+                    "${workspaceFolder}/docker-compose.yml"
+                ]
+            }
+        },
+        {
+            "label": "Launch QGIS",
+            "type": "process",
+            "args": [
+                "--project",
+                "${workspaceFolder}\\project\\teksi_wastewater.qgs"
+            ],
+            "runOptions": {
+                "instanceLimit": 1,
+                "reevaluateOnRerun": false
+            },
+            "dependsOn": [
+                "docker-db"
+            ],
+            "problemMatcher": [],
+            "options": {
+                "env": {
+                    "QGIS_PLUGINPATH": "${workspaceFolder}\\plugin",
+                    "QGIS_PLUGIN_USE_DEBUGGER": "debugpy",
+                    "PGSERVICEFILE": "${workspaceFolder}\\project\\pg_service.conf"
+                }
+            },
+            "windows": {
+                "command": "C:\\OSGeo4W\\bin\\qgis-ltr-bin.exe"
+            },
+            "linux": {
+                "command": "qgis-ltr"
+            }
+        }
+    ]
+}

README.md

@@ -17,3 +17,29 @@ How to start [testing](https://github.com/teksi/wastewater/discussions/72)
 Upcoming first version TEKSI Wastewater 2024.0 is due to end of march 2024.
 
 Migration path from QGEP to TEKSI Wastewater is due to end of summer 2024. <!---  // skip-keyword-check -->
+
+## Local development
+
+1. Open OSGeo4W Shell and run `pip install debugpy`.
+2. Clone this repository to your local machine.
+3. Open QGIS, go to the _Environment_ section in `Settings > Options - System` and add the following custom variables:
+
+   | Apply  | Variable                 | Value                   |
+   | :----- | :----------------------- | :---------------------- |
+   | APPEND | QGIS_PLUGINPATH          | {repositoryPath}/plugin |
+   | APPEND | QGIS_PLUGIN_USE_DEBUGGER | debugpy                 |
+
+4. Install QGIS plugin _Plugin Reloader_. This will allow you to reload the plugin without restarting QGIS.
+5. Follow the _prerequisites_ and _Usage (GUI)_ from https://github.com/wapaAdmin/tww2ag6496/blob/main/docs/en/admin-guide/interlis-io/index.rst
+
+## Local development with VS Code
+
+1. Ensure prerequisites are met according to the [admin guide](docs/en/admin-guide/interlis-io/index.rst).
+2. Install [Visual Studio Code](https://code.visualstudio.com/) and the [Python extension](https://marketplace.visualstudio.com/items?itemName=ms-python.python).
+3. Install QGIS LTR
+4. Install Docker
+5. Install debugpy by running task `Install dependencies` or run `pip install debugpy` in the OSGeo4W Shell on Windows or your python env for qgis.
+6. Launch QGIS with task `Launch QGIS`.
+7. Wait for QGIS to start and open the plugin in QGIS.
+7. Ensure __Developer mode__ is enabled in the plugin settings. This will start the debug server.
+8. Attach the debugger with Debug: Start Debugging (F5) with configuration `Python: Remote Attach`

plugin/teksi_wastewater/teksi_wastewater_plugin.py

@@ -26,6 +26,7 @@
 
 import logging
 import os
+import shutil
 
 from qgis.core import Qgis, QgsApplication
 from qgis.PyQt.QtCore import QLocale, QSettings, Qt
@@ -82,6 +83,19 @@ class TeksiWastewaterPlugin:
     profile = None
 
     def __init__(self, iface):
+        if os.environ.get("QGIS_DEBUGPY_HAS_LOADED") is None and QSettings().value(
+            "/TWW/DeveloperMode", False, type=bool
+        ):
+            try:
+                import debugpy
+
+                debugpy.configure(python=shutil.which("python"))
+                debugpy.listen(("localhost", 5678))
+            except Exception as e:
+                print(f"Unable to create debugpy debugger: {e}")
+            else:
+                os.environ["QGIS_DEBUGPY_HAS_LOADED"] = "1"
+
         self.iface = iface
         self.canvas = iface.mapCanvas()
         self.nodes = None

project/pg_service.conf

@@ -0,0 +1,7 @@
+[pg_tww]
+# Configuration for TEKSI development database in docker
+host=localhost
+port=5432
+user=postgres
+password=postgres
+dbname=tww