ignore all, authorize callback ?

[jonlepage]

Hey this tool are awesome thanks.
One thing, we really need support ignore all
Any tips to do this
Example i want allow only if is a files, and the extension is .json and .webm

        const scanDATA2 = () => {
            const recursive = require('recursive-readdir');
            function ignoreFunc(file, stats) {
                const isDirectory = stats.isDirectory();
                if(stats.isDirectory()){
                    return file.contains('SOURCE') || file.contains('source');
                }else
                if(stats.isFile()){
                    return !(['.json','.webm'].contains(file));
                };
              };
              recursive("data2", [ignoreFunc], (err, files) => {
                files.forEach(PATH => {
                    const split = PATH.replace('.','\\').split('\\');
                    const name = split[split.length-2];
                    if(name.contains('-')){ // isMultipack
                        const _name = name.split('-')[0]; // nom sans -0
                        !this.LINKS[_name] && (this.LINKS[_name] = []);
                        this.LINKS[_name].push( {name:name,path:PATH.replace(/\\/g,"/")} );
                    }else{
                        this.LINKS[name] = PATH.replace(/\\/g,"/");
                    };
                });
                return nextStep();
              });
        };

the issue with the ignore files, is if a user add a new file in folder, it will scan.