var CmdClean … var cleanI … var cleanR … var cleanCache … var cleanFuzzcache … var cleanModcache … var cleanTestcache … func init() { … } func runClean(ctx context.Context, cmd *base.Command, args []string) { … } var cleaned … var cleanDir … var cleanFile … var cleanExt … func clean(p *load.Package) { … } // removeFile tries to remove file f, if error other than file doesn't exist // occurs, it will report the error. func removeFile(f string) { … }