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# Apply patches to source code
#
# Copyright (C) 2012, 2019 Patrick McDermott
#
# This file is part of opkbuild.
#
# opkbuild is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# opkbuild is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with opkbuild. If not, see <http://www.gnu.org/licenses/>.
set -eu
apply_patches()
{
local applied=
local orig_lang=
local patch=
applied='false'
if [ -d '../patches' ] && [ -d 'src' ]; then
mkdir -p '.opkbuild'
patches="${OB_LF}$(cat '.opkbuild/patches' 2>/dev/null || \
:)${OB_LF}"
exec 3>>'.opkbuild/patches'
cd 'src/'
# Iterate over patches ordered alphabetically by name.
# POSIX.1-2008 says that the results of a pathname expansion
# shall be "sorted according to the collating sequence in effect
# in the current locale". So for consistent results, we first
# set a standard locale.
orig_lang="${LANG}"
LANG='POSIX'
for patch in '../../patches/'*; do
[ -f "${patch}" ] || continue
LANG="${orig_lang}"
patch="${patch#../../patches/}"
case "${patches}" in *"${OB_LF}${patch}${OB_LF}"*)
ob_info "$(ob_get_msg 'skipping_patch')" \
"${patch}"
continue
esac
ob_info "$(ob_get_msg 'applying_patch')" "${patch}"
if ! patch -N -p 1 -u -i "../../patches/${patch}"; then
ob_error "$(ob_get_msg 'cant_apply_patch')" \
"${patch}"
return 1
fi
printf '%s\n' "${patch}" >&3
applied='true'
done
LANG="${orig_lang}"
cd '../'
exec 3>&-
fi
${applied} || ob_info "$(ob_get_msg 'no_patches')"
return 0
}
main()
{
if ! ob_set_text_domain 'opkbuild'; then
printf '%s: Error: Failed to load locale messages\n' \
"${0##*/}" >&2
return 1
fi
ob_init_package '..' || return 1
apply_patches || return 1
return 0
}
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