Dockerfile.build-musl

# Multi-arch build (local):
#     docker buildx create --use --driver=docker-container --name container --bootstrap
#     docker buildx build . --cache-to type=local,dest=.cache,mode=max --cache-from type=local,src=.cache --platform=linux/amd64 --builder=container --progress plain -o dist -f Dockerfile.build-musl
# ,linux/arm64,linux/arm/v7
# rust links from https://forge.rust-lang.org/infra/other-installation-methods.html#standalone-installers

# map source image to base
FROM python:3.12-alpine3.19 AS base
ARG TARGETARCH
ARG TARGETVARIANT
WORKDIR /app
RUN \
  --mount=type=cache,target=/var/cache/apk,sharing=shared \
  apk update && \
  apk add git curl binutils gcc libc-dev libffi-dev zlib-dev openssl-dev tzdata bash patchelf python3-dev musl-dev pkgconfig cargo
# from https://cryptography.io/en/latest/installation/#building-cryptography-on-linux
# If you get an error with openssl-dev you may have to use libressl-dev.
# cargo 

FROM base AS base_amd64_none
# does not need rustc

FROM base AS base_arm64_none
# does not need rustc

FROM base AS base_arm_v7
# does not have musl variant prepackaged but the one from apk works
    
FROM base_${TARGETARCH}_${TARGETVARIANT:-none} AS builder
ARG TARGETARCH
ARG TARGETVARIANT
ARG QEMU_CPU
WORKDIR /app
COPY LICENSE.md .
COPY README_PYPI.md .
COPY scripts scripts/
COPY binary_dist binary_dist/
COPY pyproject.toml .
COPY src src/
# staticx must be installed after scons
# staticx gives error: Error relocating /tmp/staticx-pyi-9b5nvfi_/_cffi_backend.cpython-312-x86_64-linux-musl.so: PyNumber_Long: symbol not found, so not using for musl
RUN \
    --mount=type=cache,target=/root/.cache/pip,sharing=shared \
    python3 -m venv .venv && \
    . .venv/bin/activate && \
    pip3 install --disable-pip-version-check .[dev,devlinux]
RUN \
    . .venv/bin/activate && \
    scripts/build_bin2 icloudpd icloud  && \
    scripts/build_bin1 icloud && \
    scripts/build_bin1 icloudpd_ex  && \
    scripts/build_whl

FROM scratch
WORKDIR /
COPY --from=builder /app/dist/icloud* .