49 lines
873 B
Go
49 lines
873 B
Go
package main
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import (
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"crypto/rand"
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"flag"
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"fmt"
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"io/ioutil"
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mr "math/rand"
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"os"
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"path/filepath"
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"time"
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)
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func name() string {
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var b [16]byte
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rand.Reader.Read(b[:])
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return fmt.Sprintf("%x", b[:])
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}
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func main() {
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var files int
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var maxexp int
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flag.IntVar(&files, "files", 1000, "Number of files")
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flag.IntVar(&maxexp, "maxexp", 20, "Maximum file size (max = 2^n + 128*1024 B)")
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flag.Parse()
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for i := 0; i < files; i++ {
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n := name()
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p0 := filepath.Join(string(n[0]), n[0:2])
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os.MkdirAll(p0, 0755)
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s := 1 << uint(mr.Intn(maxexp))
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a := 128 * 1024
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if a > s {
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a = s
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}
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s += mr.Intn(a)
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b := make([]byte, s)
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rand.Reader.Read(b)
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p1 := filepath.Join(p0, n)
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ioutil.WriteFile(p1, b, 0644)
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os.Chmod(p1, os.FileMode(mr.Intn(0777)|0400))
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t := time.Now().Add(-time.Duration(mr.Intn(30*86400)) * time.Second)
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os.Chtimes(p1, t, t)
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}
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}
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