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#! /bin/bash
# Needs bash for process substitition, ie <(
if [ $# != 2 ]; then
echo "Usage $0 <command> <asciidoc.txt>" >&2
exit 1
fi
get_cmd_opts()
{
# Trim out -- after first one (--option mentioned in help!)
$1 --help | grep '^-' | sed 's/[ ].*--.*//' | while IFS=$'\n' read -r opt; do
case "$opt" in
# We don't document dev options.
--dev*)
;;
--*=*|--*' <arg>'*)
echo "${opt%%[ =]*}=" | cut -c3-
;;
--*)
echo "${opt%%[ |]*}" | cut -c3-
;;
-*\|--*)
opt=${opt##*|}
echo "${opt%%[ |]*}" | cut -c3-
esac
done
}
CMD_OPTNAMES=$(get_cmd_opts "$1" | sort)
# Now, gather (long) opt names from man page, make sure they match.
MAN_OPTNAMES=$(sed -E -n 's/^\*(--)?([^*/]*)\*(=?).*::/\2\3/p' < "$2" | sort)
if [ "$CMD_OPTNAMES" != "$MAN_OPTNAMES" ]; then
echo "diff of command names vs manpage names":
diff -u <(echo "$CMD_OPTNAMES") <(echo "$MAN_OPTNAMES")
exit 2
fi