Overlay/eclass/patches.eclass

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# Copyright 1999-2022 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: patches.eclass
# @MAINTAINER:
# mva
# @AUTHOR:
# mva
# @BLURB: autopatching magic (pretty useful for me, but criticized for obscurity and looks like not suitable for gentoo repo)
# @DESCRIPTION:
# Eclass that checks for patches directories existance and auto-add them into PATCHES=()
EXPORT_FUNCTIONS src_prepare
patches_src_prepare() {
[[ -z ${PATCHES[@]} ]] && PATCHES=()
PATCHDIR_BASE="${FILESDIR}/patches"
PATCHDIRS=("${CUSTOM_PATCHDIR:-non-existant-dir}" "${SLOT//\/*}" "${PV}" "${PV}-${PR}")
for PATCHDIR in ${PATCHDIRS[@]/#/${PATCHDIR_BASE}/}; do
if [[ -d "${PATCHDIR}" ]]; then
_patchdir_not_empty() {
local has_files
local LC_ALL=POSIX
local prev_shopt=$(shopt -p nullglob)
shopt -s nullglob
local f
local lvl=${2}
for f in "${1:-${PATCHDIR}}"/*; do
if [[ "${f}" == *.diff || "${f}" == *.patch ]] && [[ -f "${f}" || -L "${f}" ]]; then
has_files=1
elif [[ -d "${f}" ]] && [[ "${lvl:-0}" -eq 0 ]]; then
# limit recursion to first level only,
# since eapply cannot into recursion,
# while 2-lvl "conditional" patching implemented below
let lvl+=1
_patchdir_not_empty "${f}" "${lvl}" && has_files=1
fi
done
${prev_shopt}
[[ -n "${has_files}" ]]; return $?
}
_patchdir_not_empty && PATCHES+=("${PATCHDIR}")
if [[ -d "${PATCHDIR}/conditional" ]]; then
pushd "${PATCHDIR}/conditional" &>/dev/null
for d in *; do
if [[ -d ${d} ]]; then
if [[ "${d##no-}" == ${d} ]]; then
(use "${d}" && _patchdir_not_empty "${d}") && PATCHES+=("${PATCHDIR}/conditional/${d}")
else
(use "${d##no-}" && _patchdir_not_empty "${d}") || PATCHES+=("${PATCHDIR}/conditional/${d}")
fi
fi
done
popd &>/dev/null
fi
fi
done
if declare -f cmake-utils_src_prepare &>/dev/null; then
cmake-utils_src_prepare
elif declare -f cmake_src_prepare &>/dev/null; then
cmake_src_prepare
else
default_src_prepare
fi
}