def generate_yaml_from_list_implementation(input_filepath):
    """ 
    Generate YAML document from a list of urls provided by file.
    """
    db = xapian.WritableDatabase(DATABASE_DIR, xapian.DB_CREATE_OR_OPEN)
    docs = []

    with open(input_filepath, "r") as fh: 
        urls = fh.read().split("\n")

    for url in urls:
        docid = get_docid(db, url)
        if not docid:
            continue
        doc = db.get_document(docid)
        docs.append(doc)

    return docs

@cli.command('generate_yaml_from_list', short_help="blah")
@click.argument("filepath")
def generate_yaml_from_list(filepath):
    """ 
    Generate YAML output from a list of URLs.
    """
    docs = generate_yaml_from_list_implementation(filepath)
    #print_docs(docs)

    yamloutput = docs2yaml(docs)
    print(yamloutput)