File: gen-iwyu-dummy-lib

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#!/bin/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/.
#

# Create a makefile that builds every non-generated header as a source file.
# This should help to ensure the headers are self-contained and don't
# impose unnecessary requirements (unnecessary includes) on client code.
#
# This script is fully compliant with the UNIX philosophy
# (and if you can't read it you are clearly not worthy)

set -e

iwyu_INCLUDES=$(grep -h -r ":$" "$BUILDDIR"/workdir/Dep/*Object* \
    | grep -v 'workdir\|config_host' | grep -v "^/usr" \
    | sed -e "s,^${SRCDIR}/,," | sed -e "s/:$//"  | sort -u)

iwyu_INCLUDEDIRS=$(echo "$iwyu_INCLUDES" | sed -e "s,/[^/]*$,," | grep -v "^include" | sort -u)

iwyu_EXTERNALS=$(ls "$SRCDIR"/*/*Library*mk "$SRCDIR"/*/*Executable*mk \
    | xargs awk -f "$SRCDIR"/bin/gen-iwyu-dummy-lib.awk \
    | grep -v '$(\|)\|\\$\|apr\|breakpad\|bzip2\|expat_x64\|mDNSResponder\|serf\|zlib_x64')

iwyu_DIR="$BUILDDIR"/iwyudummy/
mkdir -p "$iwyu_DIR"

{
    echo 'module_directory:=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))'
    echo "include ${SRCDIR}/solenv/gbuild/partial_build.mk"
} > "$iwyu_DIR"Makefile

{
    echo '$(eval $(call gb_Module_Module,iwyudummy))'
    echo '$(eval $(call gb_Module_add_targets,iwyudummy,StaticLibrary_iwyudummy))'
} > "$iwyu_DIR"Module_iwyudummy.mk

{
    # prevent some common configuration errors
    echo 'ifneq ($(COMPILER_PLUGINS),)'
    echo '    $(call gb_Output_error,--enable-compiler-plugins does not work well with this: bailing out)'
    echo 'endif'

    echo '$(eval $(call gb_StaticLibrary_StaticLibrary,iwyudummy))'
    # clang will "compile" headers to .gch by default
    echo '$(eval $(call gb_StaticLibrary_add_cxxflags,iwyudummy,-x c++ -D__cplusplus=201402L -D__STDC_VERSION__=201112L -Wno-unused-macros -Wno-unused-const-variable))'
    echo '$(eval $(call gb_StaticLibrary_use_custom_headers,iwyudummy,officecfg/registry))'
    echo '$(eval $(call gb_StaticLibrary_use_sdk_api,iwyudummy))'
    echo '$(eval $(call gb_StaticLibrary_use_externals,iwyudummy,\'
    for ext in ${iwyu_EXTERNALS}; do
        echo "${ext} \\";
    done
    echo '))'

    echo '$(eval $(call gb_StaticLibrary_set_include,iwyudummy,\'
    echo '$$(INCLUDE) \'
    for dir in ${iwyu_INCLUDEDIRS}; do
        if echo "$dir" | grep ".*/inc/" &>/dev/null; then
            iwyu_INCLUDEDIRS_EXTRA+=" ${dir%/inc/*}/inc"
        fi
    done
    for dir in $(echo ${iwyu_INCLUDEDIRS_EXTRA} | sed -e "s/ /\n/g" | uniq) ${iwyu_INCLUDEDIRS}; do
        echo "-I${SRCDIR}/${dir} \\";
    done
    # it fails to find stddef.h?
    echo "-I/usr/lib/clang/$(llvm-config --version)/include \\"
    echo "))"

    echo '$(eval $(call gb_StaticLibrary__add_iwyu_headers,iwyudummy,\'
    for hdr in ${iwyu_INCLUDES}; do
        echo "${hdr} \\";
    done
    echo '))'
} > "$iwyu_DIR"StaticLibrary_iwyudummy.mk