#!/bin/bash

function rsync_rules () {
    rules=""
    while read path; do
        exclude=0
        if [ "${path:0:1}" == "!" ]; then
            exclude=1
            path=${path:1}
        fi
        if [[ "$path" == *..* ]]; then
            echo "Error: Invalid path $path, skipping"
            continue
        fi
        if [ ! -d "$(pwd)/$path" ]; then
            echo "Warning: File not found $path"
        fi

        if [ $exclude == 1 ]; then
            rules="$rules --exclude=\"$path\""
        else
            rules="$rules --include=\"$path\""
        fi
    done < $1
}

rsync_rules "$(pwd)/.rsync"

echo $rules
. ./test4.sh $rules


### output

$ ./test3.sh
Warning: File not found app/blabla
--exclude="app/temp" --exclude="app/log" --include="app/temp/cache" --include="app/blabla" --include="app/fucking dir"
test4 6 --exclude="app/temp" --exclude="app/log" --include="app/temp/cache" --include="app/blabla" --include="app/fucking dir"