#!/bin/ksh -e

# needs converters/qprint
# mutt: macro pager,attach \cs "<pipe-message>cat > /tmp/muttpatch.diff<enter><shell-escape>~/.mutt/scripts/apply_patch.sh /tmp/muttpatch.diff<enter>"

clear

printf '\n---------------------------------------------------------------------\n'
grep -E 'Subject: |^Index|^RCS|^diff --git|^file +|^[-+]{3} ' "${1}"
printf '---------------------------------------------------------------------\n\n'

printf "Base path for the patch?\n"
printf "Example: /usr/ports or /usr/src\n"
printf ": "
read -r _path
cd $_path

print "Using: $_path"

printf "Fix quoted-printable mangeled patch? [y/N]: "
read -r _qprint

case ${_qprint} in
    [y|Y]) _catcmd="qprint -d"; ;;
        *) _catcmd="cat"; ;;
esac

printf "Strip? [0]: "
read -r _strip

echo "CMD: ${_catcmd} "${1}" | doas -u sdk patch -E -pp${_strip:=0} -d ${_path}"
${_catcmd} "${1}" | doas -u sdk patch -E -N -p${_strip:=0} -d ${_path}
echo ${_path} | xclip
echo "done."
read