alamb commented on issue #86:
URL: https://github.com/apache/arrow-rs/issues/86#issuecomment-826797741
Comment from Jorge Leitão(jorgecarleitao) @ 2020-07-14T13:22:14.139+0000:
<pre>One idea that I often use:
{code}
# use specific version here to freeze layer
FROM rust:1.44.1-buster AS backend-builder
# freeze the version for deterministic builds
RUN rustup update nightly-2020-07-03 && rustup default nightly-2020-07-03
# Compile a dummy program, so that the dependencies are compiled and cached
on a layer
# see https://stackoverflow.com/a/58474618/931303 for details
RUN echo "fn main() {}" > dummy.rs
## if cargo.lock or cargo changes, we trigger a build of all dependencies.
COPY backend/Cargo.lock backend/Cargo.toml /
RUN sed -i 's@src/[email protected]@' Cargo.toml
RUN cargo build --release
RUN sed -i '[email protected]@src/main.rs@' Cargo.toml
# compile the actual program
COPY ...
RUN cargo build --release
{code}
</pre>
Comment from Jorge Leitão(jorgecarleitao) @ 2020-07-19T15:47:36.675+0000:
<pre>I believe that this is a duplicate of ARROW-7136
</pre>
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