b647824716
Packages named utils, common, or misc provide clients with no sense of what the package contains. This makes it harder for clients to use the package and makes it harder for maintainers to keep the package focused. Over time, they accumulate dependencies that can make compilation significantly and unnecessarily slower, especially in large programs. And since such package names are generic, they are more likely to collide with other packages imported by client code, forcing clients to invent names to distinguish them. cit. https://blog.golang.org/package-names
55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
package cli
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import (
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"encoding/base64"
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"github.com/spf13/cobra"
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"github.com/cosmos/cosmos-sdk/client/context"
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"github.com/cosmos/cosmos-sdk/client/flags"
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"github.com/cosmos/cosmos-sdk/codec"
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"github.com/cosmos/cosmos-sdk/x/auth/client"
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)
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// txEncodeRespStr implements a simple Stringer wrapper for a encoded tx.
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type txEncodeRespStr string
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func (txr txEncodeRespStr) String() string {
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return string(txr)
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}
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// GetEncodeCommand returns the encode command to take a JSONified transaction and turn it into
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// Amino-serialized bytes
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func GetEncodeCommand(cdc *codec.Codec) *cobra.Command {
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cmd := &cobra.Command{
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Use: "encode [file]",
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Short: "Encode transactions generated offline",
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Long: `Encode transactions created with the --generate-only flag and signed with the sign command.
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Read a transaction from <file>, serialize it to the Amino wire protocol, and output it as base64.
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If you supply a dash (-) argument in place of an input filename, the command reads from standard input.`,
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) (err error) {
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cliCtx := context.NewCLIContext().WithCodec(cdc)
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stdTx, err := client.ReadStdTxFromFile(cliCtx.Codec, args[0])
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if err != nil {
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return
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}
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// re-encode it via the Amino wire protocol
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txBytes, err := cliCtx.Codec.MarshalBinaryLengthPrefixed(stdTx)
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if err != nil {
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return err
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}
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// base64 encode the encoded tx bytes
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txBytesBase64 := base64.StdEncoding.EncodeToString(txBytes)
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response := txEncodeRespStr(txBytesBase64)
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return cliCtx.PrintOutput(response)
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},
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}
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return flags.PostCommands(cmd)[0]
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}
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