#!/bin/bash

set -e

patches="$1"
series="$patches/series"

sed -n -e '1! G; $ p; h' "$series" | while read line; do
        patch=`echo "$line" | sed -e 's/ .*//'`
        params=`echo "$line" | sed -n -e 's/[^[:blank:]]* //p'`

        echo patch -R ${params:--p1} '<' "$patches/$patch"
        patch -R --dry-run ${params:--p1} < "$patches/$patch"

        RES=""
        while [ -z "$RES" ]; do
            read -n 1 -p "Apply (Y/n)" REPLY < /dev/tty

            case "x$REPLY" in
                x[Yy]) RES=yes; echo;;
                x[Nn]) RES=no; echo;;
                x) RES=yes;;
            esac
        done 

        if [ "$RES" = "yes" ]; then
            echo "Patching"
            patch -R ${params:--p1} < "$patches/$patch"
        fi
        echo
    done