BEGIN {
    FILEPATH="dummyhead"
}

/^diff / {
    DIFFLINE=$0;
}

/^\-\-\- / { 
    FILEPATH=$2 ;
    print FILEPATH;
    dirname_cmd="/usr/bin/dirname " FILEPATH;
    dirname_cmd | getline DIR
    print "DIR=" DIR;
    system("mkdir -p " DIR);
    KEEPING="true";
}

! /^diff /{
    if (KEEPING == "true") {
        print DIFFLINE > (FILEPATH);
        KEEPING="false";
    }
    print $0 >> (FILEPATH);
}

END {}