Add docker stuff

.dockerignore

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+venv

Dockerfile

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+FROM pypy:3
+
+RUN pip3 install numpy
+
+ADD docker/entrypoint.sh /entrypoint.sh
+ADD 2018.ipynb /code/2018.ipynb
+ADD data /code/data
+ADD docker/spliterator.py /code/spliterator.py
+RUN chmod +x /entrypoint.sh && \
+    chown -R nobody /code/ && \
+    chmod +x /code/spliterator.py
+
+USER nobody
+
+WORKDIR /code
+RUN pypy3 /code/spliterator.py
+
+CMD /entrypoint.sh

docker/entrypoint.sh

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+#!/bin/bash
+
+cd /code
+time pypy3 ${1:-$(find -regex './[0-9]+.py' | sort | tail -n 1)}

docker/spliterator.py

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+import json
+
+with open('2018.ipynb', 'r') as f:
+    notebook = json.load(f)
+    common = ''
+    days = {}
+
+    for cell in notebook['cells']:
+        if cell['cell_type'] == 'code':
+            day = cell['metadata']['day']
+            if day == 0:
+                common += ''.join(cell['source']) + '\n'
+            else:
+                if day not in days:
+                    days[day] = common
+                days[day] += ''.join(cell['source'][:-1])
+                days[day] += f"print({cell['source'][-1]})\n\n"
+
+    for day, code in days.items():
+        with open(f"{day:02}.py", "w") as py:
+            print(f'Writing day {day}...')
+            py.write(code)

run.sh

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+#!/bin/bash
+
+IMAGE=csmith/aoc-2018
+
+echo "Building docker image..."
+docker build . -t $IMAGE
+
+echo "To manually run without rebuilding:"
+echo "   docker run --rm -it $IMAGE /entrypoint.sh $@"
+
+docker run --rm -it $IMAGE /entrypoint.sh $@