mirror of https://github.com/tidwall/tile38.git
45 lines
913 B
Go
45 lines
913 B
Go
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// Command line interface to the xxHash32 and xxHash64 packages.
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// Usage:
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// xxHash [-mode 0] [-seed 123] filename1 [filename2...]
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// where
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// mode: hash mode (0=32bits, 1=64bits) (default=1)
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// seed: seed to be used (default=0)
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package main
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import (
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"flag"
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"fmt"
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"hash"
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"io"
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"os"
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"github.com/pierrec/xxHash/xxHash32"
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"github.com/pierrec/xxHash/xxHash64"
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)
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func main() {
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seed := flag.Uint64("seed", 0, "seed value")
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mode := flag.Int("mode", 1, "hash mode: 0=32bits, 1=64bits")
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flag.Parse()
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var xxh hash.Hash
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if *mode == 0 {
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xxh = xxHash32.New(uint32(*seed))
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} else {
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xxh = xxHash64.New(*seed)
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}
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// Process each file in sequence
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for _, filename := range flag.Args() {
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inputFile, err := os.Open(filename)
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if err != nil {
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continue
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}
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if _, err := io.Copy(xxh, inputFile); err == nil {
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fmt.Printf("%x %s\n", xxh.Sum(nil), filename)
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}
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inputFile.Close()
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xxh.Reset()
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}
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}
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