xattrs.RdFilesystem path target extended attributes store extra, customizable, small bits of info. For example, author name, file character encoding, short comments, security status, etc. Methods are provided to list, extract and work with these attributes.
Useful links:
# NOT RUN { # Create a temp file for the example tf <- tempfile(fileext = ".csv") write.csv(mtcars, tf) # has attributes? (shld be FALSE) has_xattrs(tf) get_xattr(tf, "is.rud.setting") # set an attribute set_xattr(tf, "is.rud.setting.a", "first attribut") get_xattr(tf, "is.rud.setting.a") get_xattr_size(tf, "is.rud.setting.a") # shld be TRUE has_xattrs(tf) set_xattr(tf, "is.rud.setting.b", "second attribute") get_xattr(tf, "is.rud.setting.b") get_xattr_size(tf, "is.rud.setting.b") # overwrite an attribute set_xattr(tf, "is.rud.setting.a", "first attribute") get_xattr(tf, "is.rud.setting.a") get_xattr_size(tf, "is.rud.setting.a") # see all the attributes list_xattrs(tf) # data frame vs individual functions get_xattr_df(tf) # remove attribute rm_xattr(tf, "is.rud.setting") get_xattr(tf, "is.rud.setting") # cleanup unlink(tf) # }