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#
# Copyright (c) 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 Lucía Andrea Illanes Albornoz <lucia@luciaillanes.de>
# set +o errexit -o noglob -o nounset is assumed.
#
rtl_basename() {
rtl_basename2 "${1}" "${1}";
};
rtl_basename2() {
local _rb2_rfname="${1#\$}" _rb2_rfname_out="${2#\$}" \
_rb2_fname="";
eval _rb2_fname="\${${_rb2_rfname}}";
eval ${_rb2_rfname_out}='${_rb2_fname##*/}';
return 0;
};
rtl_check_digest() {
local _rcd_rdigest="${1#\$}" _rcd_fname="${2}" _rcd_digest_check="${3}" \
_rcd_digest="";
if ! [ -e "${_rcd_fname}" ]; then
return 1;
else set -- $(sha256sum "${_rcd_fname}");
_rcd_digest="${1}";
eval ${_rcd_rdigest}='${_rcd_digest}';
if [ "${_rcd_digest}" = "${_rcd_digest_check}" ]; then
return 0;
else
return 1;
fi;
fi;
};
rtl_check_digest_file() {
local _rcdf_fname="${1}" _rcdf_digest_check="${2}" _rcdf_digest_fname="${3}" \
_rcdf_digest="" _rcdf_digest_file="";
if ! [ -e "${_rcdf_digest_fname}" ]; then
return 1;
else _rcdf_digest_file="$(cat "${_rcdf_digest_fname}")";
if [ "${_rcdf_digest_file}" != "${_rcdf_digest_check}" ]\
|| ! rtl_check_digest \$_rcdf_digest "${_rcdf_fname}" \
"${_rcdf_digest_check}";
then
return 1;
else
return 0;
fi;
fi;
};
rtl_check_path_vars() {
local _rcpv_rstatus="${1#\$}" _rcpv_vnames="${2}" \
_rcpv_rc=0 _rcpv_vname="" _rcpv_vname_val="";
for _rcpv_vname in ${_rcpv_vnames}; do
rtl_get_var_unsafe \$_rcpv_vname_val "${_rcpv_vname}";
if [ "${_rcpv_vname_val:+1}" != 1 ]; then
_rcpv_rc=1;
rtl_setrstatus "${_rcpv_rstatus}" 'Error: variable \`'"${_rcpv_vname}'"' is empty or unset.';
break;
elif [ "${_rcpv_vname_val#* *}" != "${_rcpv_vname_val}" ]; then
_rcpv_rc=2;
rtl_setrstatus "${_rcpv_rstatus}" 'Error: variable \`'"${_rcpv_vname}'"' contains one or more whitespace characters.';
break;
fi;
done;
return "${_rcpv_rc}";
};
rtl_dirname() {
rtl_dirname2 "${1}" "${1}";
};
rtl_dirname2() {
local _rdname="${1#\$}" _rdname_out="${2#\$}" \
_rd2_dname="";
eval _rd2_dname="\${${_rdname}}";
_rd2_dname="${_rd2_dname%/*}";
case "${_rd2_dname}" in
"") _rd2_dname="."; ;;
*) while rtl_matchr "${_rd2_dname}" "*/"; do
_rd2_dname="${_rd2_dname%/}";
done; ;;
esac;
eval ${_rdname_out}='${_rd2_dname}';
return 0;
};
rtl_exists_any() {
local _rea_subdir="${1}"; shift;
while [ "${#}" -gt 0 ]; do
if [ -e "${_rea_subdir}/${1}" ]; then
return 0;
else
shift;
fi;
done;
return 1;
};
rtl_flock_acquire() {
local _rfa_fd="${1}" _rfa_conflict_exit_code="${2:-253}" _rfa_wait="${3:-3600}";
while true; do
if flock \
-E "${_rfa_conflict_exit_code}" \
-w "${_rfa_wait}" \
"${_rfa_fd}";
then
return 0;
elif [ "${?}" -eq "${_rfa_conflict_exit_code}" ]; then
continue;
else
return "${?}";
fi;
done;
};
rtl_is_newer() {
local _ris_new_fname="${1}" _ris_old_fname="${2}" \
_ris_new_ts="" _ris_old_ts="";
if ! [ -e "${_ris_old_fname}" ]; then
return 0;
else
_ris_new_ts="$(stat -c %Y "${_ris_new_fname}" 2>/dev/null)";
_ris_old_ts="$(stat -c %Y "${_ris_old_fname}" 2>/dev/null)";
if [ "${_ris_new_ts:-0}" -gt "${_ris_old_ts:-0}" ]; then
return 0;
else
return 1;
fi;
fi;
};
# vim:filetype=sh textwidth=0
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