VERSION 0.6
FROM rust:latest
ENV CARGO_HOME=/deps
ARG APP_NAME=live-cli
WORKDIR /work

deps:
    COPY ./Cargo.toml ./Cargo.lock .
    # This is a binary program, expose a main.rs file
    RUN mkdir src && touch src/main.rs
    RUN cargo fetch
    SAVE ARTIFACT /deps

rust-builder:
    # Linux
    RUN rustup target add x86_64-unknown-linux-musl
    RUN rustup target add i686-unknown-linux-musl
    RUN rustup target add i686-unknown-linux-musl
    RUN rustup target add aarch64-unknown-linux-musl
    RUN rustup target add arm-unknown-linux-musleabi
    RUN rustup target add armv7-unknown-linux-musleabi
    # Windows
    RUN rustup target add x86_64-pc-windows-gnu
    RUN rustup target add i686-pc-windows-gnu

    RUN apt-get update
    RUN DEBIAN_FRONTEND=noninteractive apt-get install -y gcc-arm-linux-gnueabi gcc-aarch64-linux-gnu gdb-mingw-w64 gcc-mingw-w64-x86-64 gcc-mingw-w64-i686

    RUN cargo install cargo-deb

    SAVE IMAGE docker-wg:5000/rust-builder

build:
    FROM +rust-builder

    COPY +deps/deps /deps

    ARG TOOLCHAIN

    # Cache whatever dependency builds you can
    COPY ./Cargo.toml ./Cargo.lock .
    RUN \
        mkdir src && touch src/lib.rs && \
        cargo build --offline --release --target "$TOOLCHAIN" --jobs 1 && \
        rm src/lib.rs && rmdir src && \
        :

    # Actually build the program
    COPY . .
    RUN cargo build --offline --release --target "$TOOLCHAIN" --jobs 1

    ARG EXT
    ARG STRIP_CMD
    RUN if [ "$STRIP_CMD" ]; then "$STRIP_CMD" "target/$TOOLCHAIN/release/$APP_NAME$EXT"; fi
    # --force for windows since multiple hardlinks
    RUN xz --force --keep "target/$TOOLCHAIN/release/$APP_NAME$EXT"

    # Also build a deb file
    IF [ -z "${TOOLCHAIN##*-linux-*}" ]
        RUN echo "Building deb for ${TOOLCHAIN}"
        RUN cargo deb --target "${TOOLCHAIN}"

        SAVE ARTIFACT target/$TOOLCHAIN/debian/$APP_NAME_*.deb AS LOCAL dist/
    END

    # SAVE ARTIFACT target/$TOOLCHAIN/release/$APP_NAME$EXT AS LOCAL dist/
    SAVE ARTIFACT target/$TOOLCHAIN/release/$APP_NAME$EXT.xz AS LOCAL dist/$APP_NAME-$TOOLCHAIN$EXT.xz

all:
    BUILD --build-arg TOOLCHAIN=x86_64-unknown-linux-musl    --build-arg STRIP_CMD=x86_64-linux-gnu-strip  +build
    BUILD --build-arg TOOLCHAIN=i686-unknown-linux-musl      --build-arg STRIP_CMD=x86_64-linux-gnu-strip  +build
    BUILD --build-arg TOOLCHAIN=aarch64-unknown-linux-musl   --build-arg STRIP_CMD=aarch64-linux-gnu-strip +build
    BUILD --build-arg TOOLCHAIN=arm-unknown-linux-musleabi   --build-arg STRIP_CMD=arm-linux-gnueabi-strip +build
    BUILD --build-arg TOOLCHAIN=armv7-unknown-linux-musleabi --build-arg STRIP_CMD=arm-linux-gnueabi-strip +build
    BUILD --build-arg TOOLCHAIN=x86_64-pc-windows-gnu        --build-arg STRIP_CMD= --build-arg EXT=.exe   +build
    BUILD --build-arg TOOLCHAIN=i686-pc-windows-gnu          --build-arg STRIP_CMD= --build-arg EXT=.exe   +build