# MAIN: https://justine.lol/cosmopolitan/
# REPO: https://github.com/jart/cosmopolitan
ARG COSMO_FLAVOR=def
ARG COSMO_COMMIT=31dab8a75d928df7a4cd2e9bcf42916b1810d085
ARG COSMO_SHA256=4acafc98fa38a2429941ed46cbec4ac7c0c313641397d9c1fcda1a8e9115df80

FROM localhost/notwa-util AS downloader
ARG COSMO_COMMIT COSMO_SHA256
RUN --mount=type=cache,id=common,target=/media/common,sharing=locked \
    --mount=type=tmpfs,target=/tmp : \
 && acquire from=github repo=jart/cosmopolitan dest=/cosmopolitan env=COSMO \
;

FROM alpine:3.16 AS builder
ARG COSMO_FLAVOR COSMO_COMMIT
COPY --from=downloader /cosmopolitan /cosmopolitan
WORKDIR /cosmopolitan

# tell makefiles to be less noisy, also use /tmp:
ENV V=0 COLUMNS=80 TMPDIR=/tmp

COPY --chmod=0755 make.com build/bootstrap/make.com
COPY --chmod=0755 --from=localhost/notwa-util /nu/ /usr/bin/
RUN : \
# allow optimized builds to be more portable, so the container is too. \
 && shed build/config.mk 's/-march=native/-march=haswell -mno-pclmul -mtune=generic/' \
# fix execution on alpine (although installing the loader mitigates this) \
 && sed -i 's/skip="      76" count="     128"/skip=76         count=128       /' build/bootstrap/*.com \
 && install -m0755 build/bootstrap/ape.elf /usr/bin/ape \
 && shed Makefile \
# TODO: apply changes to COSMOPOLITAN_HEADERS as to include them in cosmopolitan.h \
# NOTE: the order here is important! look at the generated o/depend file for hints. \
# include cosmopolitan linenoise (formerly known as bestline) \
'/\bNET_HTTP\b/i\\tTHIRD_PARTY_LINENOISE\t\t\\' \
# include LoadZipArgs in cosmopolitan.a \
'/\bNET_HTTP\b/i\\tTOOL_ARGS\t\t\\' \
# add missing includes \
 && shed libc/elf/elf.h '/"libc\/elf\/struct\/ehdr.h"/i\\#include "libc/elf/struct/dyn.h"' \
# awk's pledge isn't working for me for whatever reason \
 && shed third_party/awk/main.c '/pledge.*{/,/}/d' \
# create a mapping from flavor to mode (possibly an empty string) \
 && { [ "$COSMO_FLAVOR" != def ] && mode="$COSMO_FLAVOR" || mode= ;} \
 && printf '%s="%s"\n' >env \
    commit "$COSMO_COMMIT" \
    flavor "$COSMO_FLAVOR" \
    mode "$mode" \
# make calling make a little shorter (don't put this in distrib!) \
 && printf '%s\n' >makeit '#!/usr/bin/env sh' \
    "build/bootstrap/make.com -j2 MODE='$mode'"' "$@"' \
# make accessing some common paths a littler shorter (don't put this in distrib!) \
 && printf '%s\n' >expand '#!/usr/bin/env sh' \
    "o='o/$mode' once=false" \
    'for f; do g="${f#?//}"; case "$f" in' \
    '(a//*) f="$o/ape/$g";;' \
    '(b//*) f="$o/tool/build/$g";;' \
    '(e//*) f="$o/examples/$g";;' \
    '(o//*) f="$o/$g";;' \
    '(t//*) f="$o/third_party/$g";;' \
    '(T//*) f="third_party/$g";;' \
    'esac; $once && set -- "$@" "$f" || set -- "$f"; once=true; done' \
    '"$@"' \
# don't forget to do this \
 && chmod +x makeit expand \
;

# finally start building
RUN --mount=type=tmpfs,target=/tmp : \
 && ./expand ./makeit \
  a//ape-copy-self.o        a//ape-no-modify-self.o   a//ape.elf                \
  a//ape.lds                a//ape.macho              a//ape.o                  \
  a//public/ape.lds         o//cosmopolitan.a         o//libc/crt/crt.o         \
  o/cosmopolitan.h          \
# build some extra tools for other containers to stem off of: \
 && rebuild() { ./expand ./makeit "$@" && ./expand cp -t build/bootstrap "$@" ;} \
 && rebuild \
  t//make/make.com          b//ar.com                 b//cocmd.com              \
  b//compile.com            b//cp.com                 b//echo.com               \
  b//fixupobj.com           b//gzip.com               b//mkdeps.com             \
  b//mkdir.com              b//package.com            b//pwd.com                \
  b//rm.com                 b//touch.com              b//unbundle.com           \
  b//zipobj.com             \
# these are essential too! \
 && ./expand ./makeit \
  e//unbourne.com           t//awk/awk.com            t//sed/sed.com            \
  t//unzip/unzip.com        t//zip/zip.com            b//assimilate.com         \
;

# install the basics (no executable binaries besides ape.elf)
RUN : \
 && . ./env \
 && mkdir dist "dist/$flavor" "dist/$flavor/public" \
 && echo /dist >>.gitignore \
 && ./expand cp -t "dist/$flavor" \
  a//ape-copy-self.o        a//ape-no-modify-self.o   a//ape.elf                \
  a//ape.lds                a//ape.macho              a//ape.o                  \
  o//cosmopolitan.a         o//libc/crt/crt.o         o/cosmopolitan.h          \
 && cp -t "dist/$flavor/public" "o/$mode/ape/public/ape.lds" \
\
 && install -m0755 "dist/$flavor/ape.elf" /usr/bin/ape \
 && find libc -name '*.h' >headers.txt \
 && ./expand tar zcf dist/headers.tar.gz -T headers.txt \
  ape/config.h              libc/integral             T//gdtoa/gdtoa.h          \
  T//getopt/getopt.h        T//linenoise/linenoise.h  T//musl/crypt.h           \
  T//musl/fnmatch.h         T//musl/passwd.h          T//musl/rand48.h          \
  T//musl/tempnam.h         T//regex/regex.h          T//zlib/zconf.h           \
  T//zlib/zlib.h            \
;

# install the rest
FROM builder AS distrib
RUN --mount=type=tmpfs,target=/tmp : \
 && . ./env \
 && find o -name '*.sym' -delete \
 && dedupe o/third_party/gcc /distrib/gcc/ \
    bin/x86_64-linux-musl-gcc \
    bin/x86_64-linux-musl-g++ \
    bin/x86_64-linux-musl-ld.bfd \
 && dedupe dist /distrib/dist/ "$flavor/cosmopolitan.h" \
 && mkdir /tmp/bin \
# discover .com files by uncommenting this command: \
#&& find o -name '*.com' ! -type d -exec printf '%s\n' cp -t /tmp/bin {} + | sort && exit 1 \
 && ./expand cp -t /tmp/bin \
  e//unbourne.com           t//awk/awk.com            t//make/make.com          \
  t//sed/sed.com            t//unzip/unzip.com        t//zip/zip.com            \
  b//ar.com                 b//assimilate.com         b//cocmd.com              \
  b//compile.com            b//cp.com                 b//echo.com               \
  b//fixupobj.com           b//gzip.com               b//mkdeps.com             \
  b//mkdir.com              b//package.com            b//pwd.com                \
  b//rm.com                 b//rollup.com             b//symtab.com             \
  b//touch.com              b//unbundle.com           b//zipobj.com             \
 && dedupe /tmp/bin /distrib/bin/ \
#&& ln -s "../dist/$flavor/ape.elf" /distrib/bin/ape \
 && cp "dist/$flavor/ape.elf" /distrib/bin/ape \
 && cp /cosmopolitan/env /distrib/env \
;

FROM alpine:3.16 AS runner
COPY --from=distrib /distrib /cosmopolitan
ENV PATH="/cosmopolitan/bin:/cosmopolitan/gcc/bin/:/cosmopolitan/gcc/x86_64-linux-musl/bin/:$PATH"
ARG COSMO_FLAVOR
ENV COSMO_DIST="/cosmopolitan/dist/$COSMO_FLAVOR"