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Dockerfile: Specify files to be copied to avoid unnecessary compiling #43

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Dockerfile: Specify files to be copied to avoid unnecessary compiling #43

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7 changes: 6 additions & 1 deletion Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,12 @@ RUN echo "fn main() { println!(\"If you see this message, you may want to clean
COPY ./plan/Cargo.* ./plan/
RUN cd ./plan/ && cargo build

COPY . .
# Coping each files only needed instead of doing `COPY . .` (all of them) in order to avoid unnecessary compiling.
# (e.g. because of modifiying `manifest.toml`.)
# NOTE: `.dockerignore` is not effective because the build context is not this directory on the test run.
# See https://docs.testground.ai/builder-library/docker-generic#usage
COPY ./plan/src ./plan/src
COPY ./plan/examples ./plan/examples

# This is in order to make sure `main.rs`s mtime timestamp is updated to avoid the dummy `main`
# remaining in the release binary.
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