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CI: pin Python 3.12 to avoid multiprocessing forkserver regression in 3.14 #83

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CI: pin Python 3.12 to avoid multiprocessing forkserver regression in 3.14 #83

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12 changes: 8 additions & 4 deletions grass-gis-test-docker/Dockerfile
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Expand Up @@ -8,10 +8,14 @@ COPY test-docker/test.sh /src

RUN test -e test-docker/ && rm -rf test-docker/

RUN apk add gcc make python3-dev musl-dev linux-headers

# create environment to install requirements
RUN python -m venv addon-env
# Pin Python to 3.12 (from Alpine 3.20 compat repo) to avoid the
# multiprocessing forkserver regression in Python 3.14 which breaks
# GRASS's temporal RPC server (grass/pygrass/rpc/base.py thread_checker).
# The forkserver address file is no longer found on Process.start()
# in Python 3.14, causing FileNotFoundError during server restart.
# See: https://github.com/mundialis/v.alkis.buildings.import/pull/30
RUN apk add --no-cache python3.12 py3.12-pip python3.12-dev gcc make musl-dev linux-headers
RUN python3.12 -m venv addon-env
ENV PATH="/src/addon-env/bin:$PATH"
RUN test -e requirements.txt && pip3 install -r requirements.txt || echo "No requirements.txt"

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