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#!@bash@
m4_include(common.sh)
usage() {
print 'Usage: %q [OPTIONS] FILE_A FILE_B' "$0"
print 'Usage: %q -3 [OPTIONS] FILE_A FILE_B FILE_C' "$0"
print "Use Emacs' ediff-mode to compare two files"
echo
print 'The following OPTIONS are accepted:'
emacs_usage
flag '-3' 'Do a 3-way diff instead of 2-way'
flag '-r, --recursive' 'Diff directories recursively'
}
main() {
declare -a flags=()
declare -a files=()
declare -i cnt=2
declare error=false
declare mode=normal
declare cmd=ediff
declare args=
emacs_getopt 3r recursive "$@" || error=true
eval set -- "$args"
while true; do
case "$1" in
-V|--version) shift; mode=version;;
-H|--help) shift; mode=usage
-r|--recursive) shift; cmd=edirs;;
-3) shift; cnt=3;;
--) shift; break;;
*)
if [[ $1 =~ $emacs_getopt_2 ]]; then
flags+=("$1" "$2"); shift 2
else
flags+=("$1"); shift 1
fi
;;
esac
done
files=("$@")
if [[ $mode == normal ]]; then
[[ ${#files[@]} = ${cnt} ]] || error=true
fi
if $error; then
usage >&2
return 1
fi
case "$mode" in
usage) usage; return 0;;
version) version; return 0;;
esac
emacsclient "${flags[@]}" --eval \
'(select-frame (make-frame))' \
"(${cmd}${cnt#2} $(emacs_quote "${files[@]}"))"
}
main "$@"
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