delete_lines_not_matching.cf

body common control {

    bundlesequence  => {
                        "main",
                        };

    inputs          => {
                        "cfengine_stdlib.cf",
                        };
}

bundle agent main {

    vars:
        "list" slist => { "1", "2", "3" };

    methods:
        "any" usebundle => test("@(main.list)");

}

bundle agent test(l) {
    files:
        "/tmp/testfile"
            create => "true",
            edit_line => append_if_no_lines("@(test.l)"),
            comment => "add the lines we want to the file";

        "/tmp/testfile"
            edit_line => delete_lines_not_matching("@(test.l)"),
            comment => "delete lines that arent in our list";
            
}

bundle edit_line delete_lines_not_matching(list) {

    delete_lines:
        "!$(list).*"
            comment => "Delete lines do not match our ips or are not comments"; 
    reports:
        cfengine::
            "$(list)";

}