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|
die()
{
if [ "$*" ]; then
printf 'Error: %s\n' "$*" >&2
else
echo 'Error: fatal error' >&2
fi
exit 1
}
nosex()
{
case $- in
*x*) set +x; "$@"; set -x;;
*) "$@";;
esac
}
_nonempty()
{
printf '[ "${%s}" ] || die \"mandatory parameter is empty: %s\";\n' "$1" "$1"
}
_mandatory()
{
printf '[ $# -ge %d ] || die \"mandatory parameter is missing: %s\";\n' "$2" "$1"
}
_assign()
{
printf 'local %s="${%d}";\n' "$1" "$2"
}
_args()
{
local v i=1 check="$1" assign="$2"
shift
shift
for v; do
$assign "$v" "$i"
$check "$v" "$i"
i=$((i+1))
done
}
_ARGS()
{
echo eval "$(_args _mandatory _assign "$@")"
}
_ARGS_NONEMPTY()
{
echo eval "$(_args _nonempty _assign "$@")"
}
_ARGS_OPTIONAL()
{
echo eval "$(_args : _assign "$@")"
}
_NONEMPTY()
{
echo eval "$(_args _nonempty : "$@")"
}
ARGS() { nosex _ARGS "$@"; }
ARGS_NONEMPTY() { nosex _ARGS_NONEMPTY "$@"; }
ARGS_OPTIONAL() { nosex _ARGS_OPTIONAL "$@"; }
NONEMPTY() { nosex _NONEMPTY "$@"; }
ARGS_NE() { ARGS_NONEMPTY "$@"; }
if [ "${0#-}" = bash ]; then
export -f die _nonempty _mandatory _args ARGS ARGS_NONEMPTY ARGS_OPTIONAL
fi
|
