midipix / build / midipix_build

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#
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# . ./build.vars and set -o errexit -o noglob are assumed.
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# See warning at the top of build.vars.
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#
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date() { command date +"${1:-${TIMESTAMP_FMT}}"; };
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get_var_unsafe() { eval echo \${${1}}; };
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set_var_unsafe() { eval ${1}=\"${2}\"; };
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match_uname_any() { set -- ${1} $(uname -s); [ "${2#*${1}*}" != "${2}" ]; };
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push_IFS() { _pI_IFS="${IFS}"; IFS="${1}"; };
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pop_IFS() { IFS="${_pI_IFS}"; unset _pI_IFS; };
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set_build_dir() { PKG_BUILD_DIR=${1}-${2}-${TARGET}; };
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split() { push_IFS "${1}"; set -- ${2}; pop_IFS; echo "${*}"; };
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test_cmd() { command -v "${1}" >/dev/null; };
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unsplit() { push_IFS "${1}"; shift; set -- "${@}"; echo "${*}"; pop_IFS; };
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compare_hash() {
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	# Push the output of dgst(1SSL) and the caller-supplied hash
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	# value to compare the former with on the pseudo-stack and
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	# shift off# all but the last two positional parameters.
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	# This corresponds to the hash output and caller-supplied
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	# hash values.
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	set -- $(openssl dgst -sha256 ${1}) ${2}; shift $((${#}-2));
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	[ "${1}" = "${2}" ] || echo "${1}";
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};
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# N.B.	URLs ($1) may contain `?' or '&' characters.
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fetch() {
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	_f_url="${1}"; _f_sha256sum_src="${2}";
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	_f_url_dst="${DLCACHEDIR}/$(basename "${_f_url}")";
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	wget ${WGET_ARGS} -c -O ${_f_url_dst} "${_f_url}";
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	if [ -n "${_f_sha256sum_src}" ]; then
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		_f_sha256sum_dst="$(compare_hash ${_f_url_dst} ${_f_sha256sum_src})";
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		if [ -n "${_f_sha256sum_dst}" ]; then
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			set -- "${_f_url}" ${_f_sha256sum_dst} ${_f_sha256sum_src};
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			unset _f_url _f_url_dst _f_sha256sum_src _f_sha256sum_dst;
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			log_msg failexit "Error: hash mismatch for URL \`${1}' (is: ${2}, should be: ${3}.)";
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		fi; unset _f_sha256sum_dst;
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	fi; unset _f_url _f_url_dst _f_sha256sum_src;
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};
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fetch_git() {
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	[ -z "${1}" ] && return 1;
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	rm_if_exists ${1};
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	[ -d ${1} ] && (cd ${1} && git pull origin main)\
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		|| git clone ${3} ${2} ${1};
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};
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insert_build_script_link() {
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	_ibsl_fname=${1};
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	_ibsl_level=${_ibsl_fname%%.*};
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	_ibsl_name=${_ibsl_fname#*.}; _ibsl_name=${_ibsl_name%.build};
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	if [ -z "${_ibsl_fname}" -o -z "${_ibsl_level}"	\
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			-o -z "${_ibsl_name}" ]		\
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			|| ! isnumber ${_ibsl_level}	\
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			|| [ ${#_ibsl_level} != 3 ]; then
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		log_msg failexit "Error: invalid or empty build script filename/level/name.";
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	elif [ -e ${_ibsl_fname} ]; then
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		log_msg failexit "Error: build script \`${_ibsl_fname}' already exists.";
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	elif [ -z "$(find -maxdepth 1 -name ${_ibsl_level}.\* -printf '%P\n' -quit)" ]; then
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		echo ln -s -- pkg.build ${_ibsl_fname};
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		ln -s -- pkg.build ${_ibsl_fname};
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		unset _ibsl_fname _ibsl_level _ibsl_name;
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		return 0;
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	else
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		_ibsl_levels="$(find -maxdepth 1 -name		\
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			 ${_ibsl_level%[0-9][0-9]}\[0-9\]\[0-9\].\*	\
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			-printf '%P\n' | sort -nk1)";
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	fi;
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	for _ibsl_fname_cur in ${_ibsl_levels}; do
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		if [ \( ${_ibsl_changed:=0} -eq 0 \) -a	\
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				\( "${_ibsl_fname_cur%%.*}" -eq ${_ibsl_level} \) ]; then
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			echo ln -s -- pkg.build ${_ibsl_fname};
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			ln -s -- pkg.build ${_ibsl_fname};
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			_ibsl_changed=1;
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		fi;
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		if [ ${_ibsl_changed:=0} -eq 1 ]; then
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			if [ -z "$(find -maxdepth 1 -name $((${_ibsl_fname_cur%%.*}+1)).\*	\
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					-printf '%P\n' -quit)" ]; then
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				_ibsl_last=1;
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			fi;
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			echo mv -- ${_ibsl_fname_cur}	\
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				$((${_ibsl_fname_cur%%.*}+1)).${_ibsl_fname_cur#*.};
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			mv -- ${_ibsl_fname_cur}	\
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				$((${_ibsl_fname_cur%%.*}+1)).${_ibsl_fname_cur#*.};
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			if [ ${_ibsl_last:-0} -eq 1 ]; then
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				break;
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			fi;
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		fi;
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	done;
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	if [ ${_ibsl_changed:=0} -eq 0 ]; then
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		log_msg failexit "Error: build level ${_ibsl_level} not in \`${_ibsl_levels}'.";
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	else
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		unset _ibsl_levels _ibsl_fname_cur _ibsl_changed _ibsl_last;
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		unset _ibsl_fname _ibsl_level _ibsl_name;
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	fi;
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};
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isnumber() {
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	[ -z "${1}" ] && return 1 || _i_num=${1};
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	while [ -n "${_i_num}" ]; do
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		if [ "${_i_num#[0-9]}" = "${_i_num}" ]; then
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			return 1;
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		else
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			_i_num="${_i_num#[0-9]}";
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		fi;
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	done; unset _i_num; return 0;
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};
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is_build_script_done() {
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	if [ -n "${ARG_RESTART_SCRIPT_AT}" ]; then
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		if [ "${1}" = clean ]\
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		&& [ -z "${ARG_RESTART_SCRIPT_AT#ALL}" ]; then
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			return 0;	# Skip
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		elif [ "${1}" = finish ]\
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		|| [ -z "${ARG_RESTART_SCRIPT_AT#ALL}" ]; then
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			return 1;	# Build
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		elif ! match_list ${ARG_RESTART_SCRIPT_AT} , ${1}; then
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			return 0;	# Skip
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		else
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			return 1;	# Build
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		fi;
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	elif [ -f "${WORKDIR}/.${2:-$(basename ${SCRIPT_FNAME%.build})}.${1}" ]; then
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		return 0;		# Skip
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	else
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		return 1;		# Build
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	fi;
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};
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set_build_script_done() {
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	_sbsd_script_fname=${SCRIPT_FNAME##*/};
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	_sbsd_done_fname=${WORKDIR}/.${_sbsd_script_fname%.build};
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	while [ $# -ge 1 ]; do
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		if [ "${1#-}" != "${1}" ]; then
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			rm -f -- ${_sbsd_done_fname}.${1#-};
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		else
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			touch ${_sbsd_done_fname}.${1};
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			log_msg info "Finished build step ${1} of build script \`${_sbsd_script_fname}'.";
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		fi; shift;
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	done; unset _sbsd_script_fname _sbsd_done_fname;
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};
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log_env_vars() {
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	log_msg info "Variables for this ${1:-build}:"; shift;
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	while [ ${_lev_nvar:=0} -lt ${#} ]; do
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		_lev_arg="$(eval echo \${${_lev_nvar}})";
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		_lev_arg="${_lev_arg%%=*}";
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		if [ ${#_lev_arg} -gt ${_lev_arg_len_max:=0} ]; then
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			_lev_arg_len_max=${#_lev_arg};
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		fi; : $((_lev_nvar+=1));
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	done; unset _lev_nvar _lev_arg;
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	while [ ${#} -gt 0 ]; do
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		log_msg info "$(printf					\
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			"%${_lev_arg_len_max}.${_lev_arg_len_max}s=%s"	\
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			"${1%%=*}" "$(get_var_unsafe ${1#*=})")";
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		shift;
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	done; unset _lev_arg_len_max;
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};
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log_msg() {
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	_lm_lvl=${1}; shift;
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	case ${_lm_lvl} in
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		failexit) printf "\033[${LOG_MSG_FAIL_COLOUR}m"; ;;
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		fail) printf "\033[${LOG_MSG_FAIL_COLOUR}m"; ;;
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		info) printf "\033[${LOG_MSG_INFO_COLOUR}m"; ;;
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		succ) printf "\033[${LOG_MSG_SUCC_COLOUR}m"; ;;
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		warn) printf "\033[${LOG_MSG_WARN_COLOUR}m"; ;;
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	esac;
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	if [ $# -gt 1 ]; then
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		printf "==> %s %s %s\033[0m\n" "$(date "${TIMESTAMP_FMT}")" "${1}" "$*";
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	else
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		printf "==> %s %s\033[0m\n" "$(date "${TIMESTAMP_FMT}")" "${1}";
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	fi; [ ${_lm_lvl} = failexit ] && exit 1 || unset _lm_lvl;
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};
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match_list() {
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	_ml_cmp="${3}"; push_IFS "${2}"; set -- ${1}; pop_IFS;
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	while [ ${#} -gt 0 ]; do
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		if [ "${1}" = "${_ml_cmp}" ]; then
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			unset _ml_cmp; return 0;
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		fi; shift;
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	done; unset _ml_cmp; return 1;
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};
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parse_with_pkg_name() {
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	PKG_LVL=${1}; PKG_NAME=${2}; shift 2;
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	_pwpn_pkg_NAME=$(echo ${PKG_NAME} | tr a-z A-Z);
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	if [ -z "$(get_var_unsafe PKG_${_pwpn_pkg_NAME}_URL)" ]; then
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		unset _pwpn_pkg_NAME;
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		log_msg failexit "Error: package \`${PKG_NAME}' missing in build.vars.";
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	else
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		for _pwpn_vname in ${PKG_BUILD_VARS}; do
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			if [ -n "$(get_var_unsafe DEFAULT_${_pwpn_vname})" ]; then
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				export "PKG_${_pwpn_vname}=$(get_var_unsafe DEFAULT_${_pwpn_vname})";
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			fi;
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			if [ -n "$(get_var_unsafe PKG_LVL${PKG_LVL}_${_pwpn_vname})" ]; then
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				export "PKG_${_pwpn_vname}=$(get_var_unsafe PKG_LVL${PKG_LVL}_${_pwpn_vname})";
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			fi;
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			if [ -n "$(get_var_unsafe PKG_${_pwpn_pkg_NAME}_${_pwpn_vname})" ]; then
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				export "PKG_${_pwpn_vname}=$(get_var_unsafe PKG_${_pwpn_pkg_NAME}_${_pwpn_vname})";
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			fi;
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		done; unset _pwpn_vname;
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	fi;
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	[ -z "${PKG_FNAME}" ] && PKG_FNAME=${PKG_URL##*/};
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	[ -z "${PKG_SUBDIR}" ] && PKG_SUBDIR=${PKG_FNAME%%.tar*};
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	[ -n "${PKG_ENV_VARS_EXTRA}" ] && set_env_vars_with_sep : "${PKG_ENV_VARS_EXTRA}";
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	for _pwpn_env_var in $(export); do
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		if [ "${_pwpn_env_var#PKG_}" != "${_pwpn_env_var}" ]; then
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			_pwpn_env_vars="${_pwpn_env_vars:+${_pwpn_env_vars} }${_pwpn_env_var%%=*}";
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		fi;
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	done;
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	if [ -n "${_pwpn_env_vars}" ]; then
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
		log_env_vars "build script" ${_pwpn_env_vars};
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	fi; unset _pwpn_pkg_NAME _pwpn_env_var _pwpn_env_vars;
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
};
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
set_env_vars_with_sep() {
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	_sevws_sep=${1}; shift; push_IFS ${_sevws_sep}; set -- ${1};
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	while [ ${#} -gt 0 ]; do
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
		export "${1}"; shift;
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	done; unset _sevws_sep; pop_IFS;
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
};
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
rm_if_exists() {
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	[ -z "${1#-m}" ] && { _rie_arg_m=1; shift; };
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	[ -z "${1#-c}" ] && { _rie_arg_c=1; shift; };
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	[ -z "${1}" ] && return 1;
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	if [ -d ${1} -o -f ${1} ]; then
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
		log_msg warn "Removing directory or file \`${1}'.";
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
		rm -rf -- ${1};
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	fi;
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	[ ${_rie_arg_m:-0} -eq 1 ] && {
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
		log_msg warn "Making directory \`${1}'.";
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
		mkdir -- ${1}; unset _rie_arg_m; };
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	[ ${_rie_arg_c:-0} -eq 1 ] && { cd ${1}; unset _rie_arg_c; };
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	return 0;
lalbornoz 340f4c
};
lalbornoz 340f4c
Lucio Andrés Illanes Albornoz (arab, vxp) 392fef
run_cmd_unsplit() {
Lucio Andrés Illanes Albornoz (arab, vxp) 392fef
	_rcu_cmd=${1}; shift;
Lucio Andrés Illanes Albornoz (arab, vxp) 392fef
	while [ ${#} -gt 0 ]; do
Lucio Andrés Illanes Albornoz (arab, vxp) 392fef
		[ -n "${1}" ] &&\
Lucio Andrés Illanes Albornoz (arab, vxp) c288df
			_rcu_cmdline="${_rcu_cmdline:+${_rcu_cmdline}:}${1}";
Lucio Andrés Illanes Albornoz (arab, vxp) 392fef
		shift;
Lucio Andrés Illanes Albornoz (arab, vxp) 392fef
	done;
Lucio Andrés Illanes Albornoz (arab, vxp) c288df
	push_IFS :; ${_rcu_cmd} ${_rcu_cmdline}; _rcu_rc=$?; pop_IFS;
Lucio Andrés Illanes Albornoz (arab, vxp) 392fef
	unset _rcu_cmd _rcu_cmdline; return ${_rcu_rc};
Lucio Andrés Illanes Albornoz (arab, vxp) 392fef
};
Lucio Andrés Illanes Albornoz (arab, vxp) 392fef
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
set_env_vars() {
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	_sev_val_new="${1}"; shift;
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	while [ ${#} -gt 1 ]; do
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
		[ -z "${_sev_val_new}" ] && unset ${1} ||\
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
			export "${1}=${_sev_val_new}"; shift;
Lucio Andrés Illanes Albornoz (arab, vxp) 820be1
	done; unset _sev_val_new;
Lucio Andrés Illanes Albornoz (arab, vxp) 0724e5
};
Lucio Andrés Illanes Albornoz (arab, vxp) 0724e5
lalbornoz 340f4c
# vim:filetype=sh