57 lines
1004 B
Go
57 lines
1004 B
Go
package main
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import (
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"io"
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"os"
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"github.com/urfave/cli/v2"
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"golang.org/x/xerrors"
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"github.com/filecoin-project/go-state-types/abi"
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"github.com/filecoin-project/lotus/storage/sealer/fr32"
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)
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var fr32Cmd = &cli.Command{
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Name: "fr32",
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Description: "fr32 encode/decode",
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Flags: []cli.Flag{
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&cli.BoolFlag{
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Name: "decode",
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Aliases: []string{"d"},
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},
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},
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Action: func(context *cli.Context) error {
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if context.Bool("decode") {
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st, err := os.Stdin.Stat()
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if err != nil {
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return err
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}
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pps := abi.PaddedPieceSize(st.Size())
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if pps == 0 {
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return xerrors.Errorf("zero size input")
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}
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if err := pps.Validate(); err != nil {
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return err
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}
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r, err := fr32.NewUnpadReader(os.Stdin, pps)
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if err != nil {
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return err
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}
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if _, err := io.Copy(os.Stdout, r); err != nil {
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return err
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}
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return nil
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}
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w := fr32.NewPadWriter(os.Stdout)
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if _, err := io.Copy(w, os.Stdin); err != nil {
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return err
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}
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return w.Close()
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},
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}
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