#!/usr/bin/env bash
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#

# generate a bunch of dummy headers that wrap the crappy boost headers and
# suppress a myriad of warnings; requires GCC's #include_next extension
# To run this do: make cmd cmd="bin/gen-boost-headers"

set -euo pipefail
IFS=$'\n\t'

GENDIR=${SRCDIR}/external/boost/include

rm -rf ${GENDIR}
mkdir ${GENDIR}

# note: clucene contains a copy of half of boost, so ignore it too
# note: firebird contains a copy of half of boost, so ignore it too

cat <(cd ${SRCDIR} && git grep -h '^# *include') \
    <(find ${WORKDIR}/UnpackedTarball/ -mindepth 1 -maxdepth 1 -type d \
         | grep -v boost \
         | grep -v clucene \
         | grep -v firebird \
         | xargs grep -hr '^# *include') \
 | grep -o '\bboost.*\.\(h\|hpp\|ipp\)' \
 | sort | uniq \
 | while read -r HEADER; do
        mkdir -p "$(dirname ${GENDIR}/${HEADER})"
        cat > "${GENDIR}/${HEADER}" << _EOF
/* generated by $0, do not edit! */
#pragma once
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpragmas"  /* first! for GCC */
#pragma GCC diagnostic ignored "-Wunknown-warning-option" // second! for Clang 5
#pragma GCC diagnostic ignored "-Wdelete-non-virtual-dtor"
#pragma GCC diagnostic ignored "-Wdeprecated-builtins"
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#pragma GCC diagnostic ignored "-Wdeprecated-copy"
#pragma GCC diagnostic ignored "-Wdeprecated-copy-dtor"
#pragma GCC diagnostic ignored "-Wextra"
#pragma GCC diagnostic ignored "-Wignored-qualifiers"
#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
#pragma GCC diagnostic ignored "-Winvalid-constexpr"
#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
#pragma GCC diagnostic ignored "-Wmicrosoft-unqualified-friend"
#pragma GCC diagnostic ignored "-Wnonnull"
#pragma GCC diagnostic ignored "-Wparentheses"
#pragma GCC diagnostic ignored "-Wplacement-new"
#pragma GCC diagnostic ignored "-Wreturn-type"
#pragma GCC diagnostic ignored "-Wshadow"
#pragma GCC diagnostic ignored "-Wstrict-aliasing"
#pragma GCC diagnostic ignored "-Wtautological-constant-out-of-range-compare"
#pragma GCC diagnostic ignored "-Wtype-limits"
#pragma GCC diagnostic ignored "-Wundef"
#pragma GCC diagnostic ignored "-Wunused-local-typedefs"
#pragma GCC diagnostic ignored "-Wunused-macros"
#pragma GCC diagnostic ignored "-Wunused-parameter"
#pragma GCC diagnostic ignored "-Wunused-variable"
#include_next <${HEADER}>
#pragma GCC diagnostic pop
_EOF
    done