func main() {
var args struct {
M uint `help:"num bits"`
K uint `help:"num hashing functions"`
}
tagflag.Parse(&args, tagflag.Description("adds lines from stdin to a bloom filter with the given configuration, and gives collision stats at EOF"))
filter := bloom.New(args.M, args.K)
scanner := bufio.NewScanner(os.Stdin)
n := 0
collisions := 0
for scanner.Scan() {
if filter.TestAndAdd(scanner.Bytes()) {
collisions++
}
n++
}
if err := scanner.Err(); err != nil {
fmt.Fprintf(os.Stderr, "error reading stdin: %s", err)
os.Exit(1)
}
fmt.Printf("collisions %d/%d (%f)\n", collisions, n, float64(collisions)/float64(n)*100)
}
func main() {
log.SetFlags(log.Flags() | log.Lshortfile)
var args struct {
AnnounceList []string `name:"a" help:"extra announce-list tier entry"`
tagflag.StartPos
Root string
}
tagflag.Parse(&args, tagflag.Description("Creates a torrent metainfo for the file system rooted at ROOT, and outputs it to stdout."))
mi := metainfo.MetaInfo{
AnnounceList: builtinAnnounceList,
}
for _, a := range args.AnnounceList {
mi.AnnounceList = append(mi.AnnounceList, []string{a})
}
mi.SetDefaults()
err := mi.Info.BuildFromFilePath(args.Root)
if err != nil {
log.Fatal(err)
}
err = mi.Write(os.Stdout)
if err != nil {
log.Fatal(err)
}
}