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Optimize Dockerfile layer caching for faster builds #4633

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11 changes: 9 additions & 2 deletions Dockerfile
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Expand Up @@ -34,14 +34,21 @@ RUN apt-get update \
# Create directory for scancode sources
WORKDIR /scancode-toolkit

# Copy sources into docker container
COPY . /scancode-toolkit
# Copy only necessary files for configuration first (better layer caching)
COPY configure configure.bat setup.py setup.cfg setup-mini.cfg pyproject.toml MANIFEST.in ./
COPY requirements*.txt ./
COPY src/ ./src/
COPY etc/ ./etc/

# Initial configuration using ./configure, scancode-reindex-licenses to build
# the base license index
RUN ./configure \
&& ./venv/bin/scancode-reindex-licenses

# Copy remaining application files
COPY scancode scancode.bat extractcode extractcode.bat ./
COPY *.rst *.LICENSE *.ABOUT NOTICE ./

# Add scancode to path
ENV PATH=/scancode-toolkit:$PATH

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