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#!@@SHELL@@
#
# opkhelper
# lib/control
# Functions for parsing control files.
#
# Copyright (C) 2012 Patrick "P. J." McDermott
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
[ -n "${_OH_CONTROL_SH}" ] && return 0
_OH_CONTROL_SH=true
. @@LIBDIR@@/messages
. @@LIBDIR@@/locale
. @@LIBDIR@@/util
# Constant global parameters:
OH_CONTROL_SOURCE_FIELDS_REQUIRED='Maintainer'
OH_CONTROL_SOURCE_FIELDS_OPTIONAL='Build-Depends Homepage'
OH_CONTROL_BINARY_FIELDS_REQUIRED='Architecture Platform Priority Description'
OH_CONTROL_BINARY_FIELDS_OPTIONAL='Essential Depends Recommends Suggests '\
'Pre-Depends Conflicts Provides Replaces'
OH_CONTROL_SOURCE_FIELD_MAINTAINER=
OH_CONTROL_SOURCE_FIELD_BUILD_DEPENDS=
OH_CONTROL_SOURCE_FIELD_HOMEPAGE=
OH_CONTROL_BINARY_FIELD_ARCHITECTURE=
OH_CONTROL_BINARY_FIELD_PLATFORM=
OH_CONTROL_BINARY_FIELD_PRIORITY=
OH_CONTROL_BINARY_FIELD_DESCRIPTION=
OH_CONTROL_BINARY_FIELD_ESSENTIAL=
OH_CONTROL_BINARY_FIELD_DEPENDS=
OH_CONTROL_BINARY_FIELD_RECOMMENDS=
OH_CONTROL_BINARY_FIELD_SUGGESTS=
OH_CONTROL_BINARY_FIELD_PRE_DEPENDS=
OH_CONTROL_BINARY_FIELD_CONFLICTS=
OH_CONTROL_BINARY_FIELD_PROVIDES=
OH_CONTROL_BINARY_FIELD_REPLACES=
oh_control_parse_source()
{
_control_parse "${OH_SOURCE_DIR}/control" 'SOURCE'
}
oh_control_parse_binary()
{
_control_parse "${OH_SOURCE_DIR}/${1}.pkg/control" 'BINARY'
}
_control_parse()
{
_control="${1}"
_type="${2}"
_req=" $(eval echo \$\{OH_CONTROL_"${_type}"_FIELDS_REQUIRED) "
_opt=" $(eval echo \$\{OH_CONTROL_"${_type}"_FIELDS_OPTIONAL) "
_all="${_req}${_opt}"
_got=' '
# Initialize fields.
for _param in ${_all}; do
eval "${_param}="
done
_param=
_line_nr=0
while read -r _line; do
_line_nr=$(($_line_nr + 1))
if [ "${_line# }" = "${_line}" ]; then
# "Name: Value" line.
_name="${_line%%:*}"
_value="${_line#*:}"
if [ -z "${_name}" -o "${_name}" = "${_line}" \
-o -z "${_value}" ]; then
# Badly formatted control field.
_control_parse_error "${_control}" "${_line_nr}" \
"${oh_str_control_bad_nv}"
continue
fi
if [ "${_all% ${_name} }" = "${_all}" ]; then
# Unknown field.
_control_parse_error "${_control}" "${_line_nr}" \
"${oh_str_control_unknown_field}" \
"${_control}" "${_name}"
else
# Remove field from list of required fields.
_req="$(echo "${_req}" | sed "s/${_name}//")"
fi
if [ "${_got% ${_name} }" != "${_got}" ]; then
# Duplicate field.
_control_parse_error "${_control}" "${_line_nr}" \
"${oh_str_control_duplicate_field}" \
"${_control}" "${_field}"
else
_got="${_got}${_field} "
fi
_param="OH_CONTROL_${_type}_FIELD_$(LC_CTYPE=C \
tr '[:lower:]-' '[:upper:]_')"
eval "${_param}=\"${_value}\""
else
# Continuation line.
if [ -z "${_param}" ]; then
# Expecting a "Name: Value" line.
_control_parse_error "${_control}" "${_line_nr}" \
"${oh_str_control_found_continuation}"
continue
fi
_value="${_line# }"
eval "${_param}=\"${_param}
${_value}\""
fi
done <"${_control}"
_req="${_req## }"
_req="${_req%% }"
if [ -n "${_req}" ]; then
# Missing required control fields.
_control_parse_error "${_control}" 0 \
"${oh_str_control_missing_fields}" \
"$(echo "${_req}" | sed 's/ / /g' | sed 's/ /,/g')"
fi
}
_control_parse_error()
{
_file="${1}"
_line_nr="${2}"
_error="${3}"
shift 3
if [ "${_line_nr}" -eq 0 ]; then
_file_info=$(printf '%20s:' "${_file}" "${_line_nr}")
else
_file_info=$(printf '%20s(l%d):' "${_file}" "${_line_nr}")
fi
oh_warn "${_file_info} ${_error}" "${@}"
}
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