#!/bin/bash
[% c("var/set_default_env") -%]
distdir=/var/tmp/dist/[% project %]
[% pc(c('var/compiler'), 'var/setup', { compiler_tarfile => c('input_files_by_name/' _ c('var/compiler')) }) %]
# Set up compiler

shopt -s globstar

# Required for "import ssl"
tar -C /var/tmp/dist -xf [% c('input_files_by_name/openssl') %]
openssldir=/var/tmp/dist/openssl/openssl
cp -a $openssldir/include/openssl /var/tmp/dist/mingw-w64/[% c("arch") %]-w64-mingw32/include/openssl
cp -a $openssldir/lib/* $openssldir/bin/*.dll /var/tmp/dist/mingw-w64/[% c("arch") %]-w64-mingw32/lib/

# Required for "import ctypes"
tar -C /var/tmp/dist -xf [% c('input_files_by_name/libffi-src') %]
pushd /var/tmp/dist/*libffi*
# The Python devs got high on LSD and appear to have committed the libffi
# source code from a Windows machine, which stripped off all the +x bits.
# Kids, drugs and coding don't mix.
chmod -R +x ./
./configure --host=[% c("arch") %]-w64-mingw32
# Always errors on this step, but still produces the .dll files we want.
make || true
cp ./[% c("arch") %]-w64-mingw32/include/*.h /var/tmp/dist/mingw-w64/[% c("arch") %]-w64-mingw32/include
cp ./[% c("arch") %]-w64-mingw32/.libs/* /var/tmp/dist/mingw-w64/[% c("arch") %]-w64-mingw32/lib/
popd

# Unpack dependencies
mkdir -p /var/tmp/build
tar -C /var/tmp/build -xf [% c('input_files_by_name/python') %]
tar -C /var/tmp/build -xf [% c('input_files_by_name/meson') %]
tar -C /var/tmp/build -xf [% c('input_files_by_name/ninja') %]
tar -C /var/tmp/build -xf [% c('input_files_by_name/python-buildscript') %]
# Add dependencies to PATH
PATH=/var/tmp/build/meson-[% c("meson_version") %]:"$PATH"
PATH=/var/tmp/build/ninja:"$PATH"

# Python includes build timestamp by default
patch /var/tmp/build/Python-[% c("version") %]/Modules/getbuildinfo.c < $rootdir/omit-build-timestamp.patch
# Patch build script to statically link pthread
patch /var/tmp/build/cross-python-[% c("cp_githash") %]/meson.build << 'EOF'
113c113
<     add_project_link_arguments('-municode', '-mconsole', '-static-libgcc', language:'c')
---
>     add_project_link_arguments('-municode', '-mconsole', '-static-libgcc', '-Wl,-Bstatic', '-lwinpthread', '-Wl,-Bdynamic', language:'c')
1076c1076
< python_libraries = both_libraries(
---
> libpython = shared_library(
1086,1087d1085
< 
< libpython = python_libraries.get_shared_lib()
EOF
# Prepare libwinpthread for static linking
# This is a hack. (TODO: refactor)
# We need to link this statically, because we aren't shipping the mingw runtime.
# https://stackoverflow.com/questions/14665691/static-linking-with-libwinpthread
ranlib /var/tmp/dist/mingw-w64/[% c("arch") %]-w64-mingw32/lib/libwinpthread.a

# Project pulls in sqlite, zlib, and build files.
# Download them outside, in rbm, to avoid container network access.
mkdir -p /var/tmp/build/cross-python-[% c("cp_githash") %]/subprojects/packagecache
cp [% c('input_files_by_name/sqlite-src') %] /var/tmp/build/cross-python-[% c("cp_githash") %]/subprojects/packagecache/sqlite-amalgamation-3250100.zip
cp [% c('input_files_by_name/sqlite-patch') %] /var/tmp/build/cross-python-[% c("cp_githash") %]/subprojects/packagecache/sqlite-3250100-1-wrap.zip
cp [% c('input_files_by_name/zlib-src') %] /var/tmp/build/cross-python-[% c("cp_githash") %]/subprojects/packagecache/zlib-1.2.11.tar.gz
cp [% c('input_files_by_name/zlib-patch') %] /var/tmp/build/cross-python-[% c("cp_githash") %]/subprojects/packagecache/zlib-1.2.11-4-wrap.zip

# Enter the build directory
cd /var/tmp/build/cross-python-[% c("cp_githash") %]

# cf. ./configure
LDFLAGS="-Wl,--no-insert-timestamp" meson.py -Dsource=../Python-[% c("version") %] --cross-file cross-files/[% c("arch") %]-w64-mingw32.txt --prefix=$distdir builddir
# cf. make
ninja -C builddir
# cf. make install
ninja -C builddir install

# These files don't reproduce, and are useless
find $distdir -name '*.a' -exec rm '{}' +

# Required for "import ssl" and "import ctypes"
cp $openssldir/bin/*.dll /var/tmp/dist/*libffi*/[% c("arch") %]-w64-mingw32/.libs/*.dll $gcclibs/*.dll $distdir/bin/

# Delete unit tests to save space (71 to 49 MB)
cd $distdir/bin
rm -rf ./**/test ./**/tests ./**/test_*

cd /var/tmp/dist
[% c('tar', {
        tar_src => [ project ],
        tar_args => '-czf ' _ dest_dir _ '/' _ c('filename'),
    }) %]