Make poetry venv path static (#356)

- Disable auto venv creation for dev containers
- Manually create the poetry venv with a static path
- Set vscode default interpreter path to the static venv
- Ensure all shells started post container creation auto-activate the venv

Author: whabanks

.devcontainer/Dockerfile

@@ -1,6 +1,7 @@
 FROM mcr.microsoft.com/vscode/devcontainers/python:3.12
 
 ENV POETRY_VERSION="1.7.1"
+ENV POETRY_VENV_PATH="/home/vscode/.venv/workspace"
 
 RUN apt-get update \
     && apt-get -y install --no-install-recommends apt-utils 2>&1 \

.devcontainer/devcontainer.json

@@ -22,7 +22,8 @@
 				"charliermarsh.ruff",
 			],
 			"settings": {
-				"python.pythonPath": "/usr/local/bin/python",
+				"python.defaultInterpreterPath": "/home/vscode/.venv/workspace/bin/python",
+				"python.venvPath": "/home/vscode/.venv",
 				"ruff.lint.ignore": ["F401"],
 				"ruff.lint.run": "onSave",
 				"ruff.organizeImports": false,

.devcontainer/scripts/notify-dev-entrypoint.sh

@@ -14,11 +14,22 @@ echo -e "autoload -Uz compinit && compinit"
 pip install poetry==${POETRY_VERSION} poetry-plugin-sort \
   && poetry --version
 
+
+# Disable poetry auto-venv creation
+poetry config virtualenvs.create false
+
 # Initialize poetry autocompletions
 mkdir ~/.zfunc
 touch ~/.zfunc/_poetry
 poetry completions zsh > ~/.zfunc/_poetry
 
+# Manually create and activate a virtual environment with a static path
+python -m venv "${POETRY_VENV_PATH}"
+source "${POETRY_VENV_PATH}/bin/activate"
+
+# Ensure newly created shells activate the poetry venv
+echo "source ${POETRY_VENV_PATH}/bin/activate" >> ~/.zshrc
+
 # Install dependencies
 poetry install