# MAIN: https://muon.build/
# REPO: https://git.sr.ht/~lattis/muon
FROM localhost/notwa-util AS downloader
ARG MUON_COMMIT=2021ab4aa102e966cabc202bc55686df2785db12
ARG MUON_SHA256=0d1b7fd0d49529fc4e90895e404a58b467c1a3a4f50733a27cff380e980dc991
RUN --mount=type=cache,id=common,target=/media/common,sharing=locked \
    --mount=type=tmpfs,target=/tmp : \
 && acquire from=sourcehut repo=lattis/muon dest=/muon \
    commit="$MUON_COMMIT" checksum="$MUON_SHA256" \
;

FROM localhost/cosmo AS builder

RUN apk add --no-cache ninja
COPY --chmod=0755 --from=localhost/notwa-util /nu/cosmocc /usr/bin/

ENV CC=cosmocc CFLAGS="-Os -g -fdiagnostics-color=always"

# TODO: why is this test failing?
#       c compiler: supports argument '-Wundef': NO
COPY --from=downloader /muon /muon
WORKDIR /muon
RUN : \
 && tar zxf /cosmopolitan/dist/headers.tar.gz -C /cosmopolitan \
 && ./bootstrap.sh build \
;

COPY --chmod=0755 --from=localhost/notwa-util /nu/shed /usr/bin/
RUN : \
# forcibly disable handling of 32-bit ELF files (we lack the headers) \
 && shed src/platform/posix/rpath_fixer.c \
'/\bcase ELFCLASS32:/,/\bbreak;/d' \
's@.*Elf32.*@/* & */@' \
# use cosmopolitan linenoise instead of bestline \
 && echo >subprojects/bestline/bestline.c \
 && printf '%s\n' >subprojects/bestline/bestline.h \
'#include "third_party/linenoise/linenoise.h"' \
'#define bestlineHistoryAdd     linenoiseHistoryAdd' \
'#define bestlineHistoryFree    linenoiseHistoryFree' \
'#define bestlineWithHistory    linenoiseWithHistory' \
\
 && build/muon setup -Dstatic=true build \
 && ninja -j2 -C build \
 && cd build \
 && mv muon muon.com.dbg \
 && objcopy -S -O binary muon.com.dbg muon.com \
;

FROM scratch AS runner
COPY --chmod=0755 --from=localhost/notwa-util /nu/busybox /bin/busybox
COPY --chmod=0755 --from=builder /cosmopolitan/dist/def/ape.elf /bin/ape
COPY --chmod=0755 --from=builder /muon/build/muon.com /muon/build/muon.com.dbg /bin/
ENTRYPOINT ["/bin/ape", "/bin/muon.com"]