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Blame subr/ex_rtl_complex.subr

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#
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# set -o noglob is assumed.
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#
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ex_rtl_check_path_vars() {
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	local _vnames="${1}" _rc=0 _vname="" _vname_val=""; _status="";
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	for _vname in ${_vnames}; do
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		_vname_val="$(ex_rtl_get_var_unsafe "${_vname}")";
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		if [ -z "${_vname_val}" ]; then
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			_rc=1; _status="Error: variable \`${_vname}' is empty or unset."; break;
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		elif [ "${_vname_val#* *}" != "${_vname_val}" ]; then
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			_rc=2; _status="Error: variable \`${_vname}' contains one or more whitespace characters."; break;
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		fi;
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	done;
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	return "${_rc}";
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};
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ex_rtl_clean_env() {
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	local _env_vars_except="${1}" _env_var="" _env_vars="";
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	_env_vars="$(export | sed -ne '/^export/{s/^export //;s/=.*$//p}')";
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	for _env_var in ${_env_vars}; do
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		if [ "${_env_var#DEFAULT_}" != "${_env_var}" ]\
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		|| [ "${_env_var#PKG_}" != "${_env_var}" ]; then
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			_env_vars_except="${_env_vars_except:+${_env_vars_except} }${_env_var}";
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		fi;
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	done;
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	ex_rtl_unset_vars $(ex_rtl_lfilter "${_env_vars}" "${_env_vars_except}");
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};
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ex_rtl_kill_tree() {
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	local _pid="${1}" _signal="TERM" _pid_child="" _pid_top="";
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	for _pid_top in $(pgrep -P "${_pid}"); do
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		for _pid_child in $(pgrep -P "${_pid_top}" 2>/dev/null); do
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			_pids_killed="${_pids_killed:+${_pids_killed} }${_pid_child}"; kill "-${_signal}" "${_pid_child}"
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			2>/dev/null;
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		done;
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		_pids_killed="${_pids_killed:+${_pids_killed} }${_pid_top}"; kill "-${_signal}" "${_pid_top}" 2>/dev/null;
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	done;
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};
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ex_rtl_lfilter() {
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	local _list="${1}" _filter="${2}" _lnew="" _litem="" _litem_filter="" _filterfl="";
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	if [ -z "${_filter}" ]; then
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		echo "${_list}"; return 0;
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	else for _litem in ${_list}; do
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		_filterfl=0;
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		for _litem_filter in ${_filter}; do
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			if [ "${_litem_filter}" = "${_litem}" ]; then
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				_filterfl=1; break;
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			fi;
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		done;
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		if [ "${_filterfl:-0}" -eq 0 ]; then
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			_lnew="${_lnew:+${_lnew} }${_litem}";
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		fi;
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	done; fi;
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	echo "${_lnew}";
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};
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ex_rtl_lmatch() {
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	local _cmp="${3}" IFS="${2}"; set -- ${1};
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	while [ ${#} -gt 0 ]; do
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		if [ "${1}" = "${_cmp}" ]; then
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			return 0;
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		fi; shift;
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	done; return 1;
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};
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ex_rtl_lsearch() {
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	local _list="${1}" _filter="${2}" _lnew="" _litem="" _litem_filter="";
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	if [ -z "${_filter}" ]; then
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		echo "${_list}"; return 0;
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	else for _litem in ${_list}; do
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		for _litem_filter in ${_filter}; do
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			if [ "${_litem_filter}" = "${_litem}" ]; then
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				_lnew="${_lnew:+${_lnew} }${_litem}";
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				break;
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			fi;
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		done;
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	done; fi;
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	echo "${_lnew}";
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};
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ex_rtl_run_cmd_unsplit() {
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	local _cmd="${1}" _cmdline="" _rc="" IFS; shift;
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	while [ ${#} -gt 0 ]; do
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		[ -n "${1}" ] &&\
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			_cmdline="${_cmdline:+${_cmdline}:}${1}";
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		shift;
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	done;
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	IFS=:; ${_cmd} ${_cmdline}; _rc=$?;
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	return ${_rc};
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};
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ex_rtl_set_vars() {
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	local _vname_dst="${1}" _vname_src_tmpls="${2}"			\
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		_vars_set_vname="${3}" _vname_src _vars_set_tmp=""	\
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		_vars_set_old="";
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	for _vname_src in ${_vname_src_tmpls}; do
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		_vname_src="${_vname_src}_${_vname_dst}";
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		_vval_src="$(ex_rtl_get_var_unsafe "${_vname_src}")";
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		if [ -n "${_vval_src}" ]; then
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			ex_rtl_set_var_unsafe "PKG_${_vname_dst}" "${_vval_src}";
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			_vars_set_tmp="${_vars_set_tmp:+${_vars_set_tmp} }PKG_${_vname_dst}";
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		fi;
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	done;
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	_vars_set_old="$(ex_rtl_get_var_unsafe "${_vars_set_vname}")";
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	ex_rtl_set_var_unsafe "${_vars_set_vname}"			\
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		"${_vars_set_old:+${_vars_set_old} }${_vars_set_tmp}";
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};
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# vim:filetype=sh