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FROM --platform=$BUILDPLATFORM ubuntu AS build

ENV HOME="/root"

WORKDIR $HOME

RUN apt update && apt install -y build-essential curl python3-venv

# Setup zig as cross compiling linker

RUN python3 -m venv $HOME/.venv

RUN .venv/bin/pip install cargo-zigbuild

ENV PATH="$HOME/.venv/bin:$PATH"

# Install rust

ARG TARGETPLATFORM

RUN case "$TARGETPLATFORM" in \

"linux/arm64") echo "aarch64-unknown-linux-musl" > rust_target.txt ;; \

"linux/amd64") echo "x86_64-unknown-linux-musl" > rust_target.txt ;; \

*) exit 1 ;; \

esac

# Update rustup whenever we bump the rust version

COPY rust-toolchain.toml rust-toolchain.toml

RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --target $(cat rust_target.txt) --profile minimal --default-toolchain none

ENV PATH="$HOME/.cargo/bin:$PATH"

# Installs the correct toolchain version from rust-toolchain.toml and then the musl target

RUN rustup target add $(cat rust_target.txt)

# Build

COPY crates crates

COPY Cargo.toml Cargo.toml

COPY Cargo.lock Cargo.lock

RUN cargo zigbuild --bin ruff --target $(cat rust_target.txt) --release

RUN cp target/$(cat rust_target.txt)/release/ruff /ruff

# TODO: Optimize binary size, with a version that also works when cross compiling

# RUN strip --strip-all /ruff

FROM scratch

COPY --from=build /ruff /ruff

WORKDIR /io

ENTRYPOINT ["/ruff"]