#!/bin/sh -e

rustver="1.29.0"
rustsrc="$(pwd)/rustc-$rustver-src"

if [ ! -e "$rustsrc/dl-version" ]; then
    echo "bypassing the download step using a softlink to the rust source code..."
    ln -sf "/src/rust-$rustver" "$rustsrc"
    echo "$rustver" > "$rustsrc/dl-version"

    echo "applying the mrust patch to the rust source code..."
    cd "$rustsrc"
    patch -p0 < /mnt/src/rustc-$rustver-src.patch
    cd - > /dev/null

    echo "removing bundled rust dependencies..."
    rm -rf "$rustsrc/llvm-project/"

    echo "removing hardcoded LD_LIBRARY_PATH in rust's bootstrap.py..."
    sed -i "/LD_LIBRARY_PATH/d" "$rustsrc/src/bootstrap/bootstrap.py"
else
    echo "pre-configure setup seems to have been done already.  skipping."
fi

ln -sf /bin/python3 /mnt/build/python
export PATH="$PATH:/mnt/build"
export triple="powerpc64le-alpine-linux-musl"

#cd "$rustsrc"
#./configure \
#    --build="$triple" \
#    --target="$triple" \
#    --release-channel="stable" \
#    --llvm-root="$PREFIX/lib" \
#    --disable-docs \
#    --enable-extended \
#    --tools="analysis,cargo,src" \
#    --enable-llvm-link-shared \
#    --enable-option-checking \
#    --enable-locked-deps \
#    --enable-vendor \
#    --python="python3" \
#    --set="target.${triple}.musl-root=$PREFIX" \
#    --set="target.${triple}.crt-static=false"
#    #--set="rust.musl-root=$PREFIX" \
#
#echo "making warnings non-fatal..."
#sed 's/#deny-warnings = .*/deny-warnings = false/' -i config.toml
#sed 's|deny(warnings,|deny(|' -i src/bootstrap/lib.rs

rm /mnt/build/python