Implement oracles v2

.dockerignore

@@ -6,4 +6,4 @@ venv
 Dockerfile
 .dockerignore
 .gitignore
-settings.txt
+local.env

.flake8

@@ -1,4 +1,3 @@
 [flake8]
 max-line-length = 88
-extend-ignore = E203,E501
-exclude = .git,__pycache__,proto,venv
+ignore = E501, E203, W503

.github/workflows/code-quality.yaml

@@ -0,0 +1,12 @@
+name: Code Quality
+
+on: [pull_request, push]
+
+jobs:
+  pre-commit:
+    name: Linting
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v2
+    - uses: pre-commit/[email protected]

.gitignore

@@ -2,4 +2,4 @@ __pycache__/
 venv
 .mypy_cache
 .idea
-settings.txt
+local.env

.pre-commit-config.yaml

@@ -0,0 +1,21 @@
+repos:
+  - repo: https://github.com/psf/black
+    rev: 21.9b0
+    hooks:
+      - id: black
+
+  - repo: https://gitlab.com/pycqa/flake8
+    rev: 3.9.2
+    hooks:
+      - id: flake8
+
+  - repo: https://github.com/timothycrosley/isort
+    rev: 5.9.3
+    hooks:
+      - id: isort
+
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.0.1
+    hooks:
+      - id: end-of-file-fixer
+      - id: trailing-whitespace

Dockerfile

@@ -1,44 +1,63 @@
-###########
-# Builder #
-###########
-FROM python:3.8.10-slim AS builder
+# `python-base` sets up all our shared environment variables
+FROM python:3.8.11-slim as python-base
 
-# This is where pip will install to
-ENV PYROOT /pyroot
-# A convenience to have console_scripts in PATH
-ENV PYTHONUSERBASE $PYROOT
+    # python
+ENV PYTHONUNBUFFERED=1 \
+    # prevents python creating .pyc files
+    PYTHONDONTWRITEBYTECODE=1 \
+    \
+    # pip
+    PIP_NO_CACHE_DIR=off \
+    PIP_DISABLE_PIP_VERSION_CHECK=on \
+    PIP_DEFAULT_TIMEOUT=100 \
+    \
+    # poetry
+    # https://python-poetry.org/docs/configuration/#using-environment-variables
+    POETRY_VERSION=1.1.8 \
+    # make poetry install to this location
+    POETRY_HOME="/opt/poetry" \
+    # make poetry create the virtual environment in the project's root
+    # it gets named `.venv`
+    POETRY_VIRTUALENVS_IN_PROJECT=true \
+    # do not ask any interactive question
+    POETRY_NO_INTERACTION=1 \
+    \
+    # paths
+    # this is where our requirements + virtual environment will live
+    PYSETUP_PATH="/opt/pysetup" \
+    VENV_PATH="/opt/pysetup/.venv"
 
-WORKDIR /build
+# prepend poetry and venv to path
+ENV PATH="$POETRY_HOME/bin:$VENV_PATH/bin:$PATH"
 
-# Setup virtualenv
-RUN python -m venv /opt/venv
-ENV PATH="/opt/venv/bin:$PATH"
 
-# Copy requirements
-COPY requirements/prod.txt ./
+# `builder-base` stage is used to build deps + create our virtual environment
+FROM python-base as builder-base
 
-# Install build dependencies
-RUN apt-get update && \
-  apt-get install -y \
-  gcc \
-  && rm -rf /var/lib/apt/lists/*
+RUN apt-get update \
+    && apt-get install --no-install-recommends -y \
+        # deps for installing poetry
+        curl \
+        # deps for building python deps
+        build-essential
 
-# Install dependencies
-RUN pip install --upgrade --no-cache-dir pip wheel && \
-  pip install --require-hashes -r prod.txt
+# install poetry - respects $POETRY_VERSION & $POETRY_HOME
+RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/install-poetry.py | python -
 
-####################
-# Production image #
-####################
-FROM python:3.8.10-slim
+# copy project requirement files here to ensure they will be cached.
+WORKDIR $PYSETUP_PATH
+COPY poetry.lock pyproject.toml ./
 
-# Dependencies path
-ENV PATH="/opt/venv/bin:$PATH"
+# install runtime deps - uses $POETRY_VIRTUALENVS_IN_PROJECT internally
+RUN poetry install --no-dev
 
-WORKDIR /app
+
+# `production` image used for runtime
+FROM python-base as production
 
 # Copy dependencies from build container
-COPY --from=builder /opt/venv /opt/venv
+WORKDIR /app
+COPY --from=builder-base $PYSETUP_PATH $PYSETUP_PATH
 
 # Copy source code
 COPY . ./

LICENSE

@@ -662,4 +662,4 @@ specific requirements.
   You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU AGPL, see
-<https://www.gnu.org/licenses/>.
+<https://www.gnu.org/licenses/>.