clawbot
efca0ebb39
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Both flags were uint32 flags, which the flag library reads with base-0 rules, so `-n 010` derived key 8 and `0x10` or `1_0` were accepted. Both now hold options.Decimal, a flag value whose Set parses with strconv.ParseUint(text, 10, 32): a leading zero stays decimal, and a base prefix, an underscore, a sign or an empty value is refused with an error naming the flag while the flags are parsed, before any command runs. Its type is still named uint32, so --help is unchanged and GetUint32 still reads it back. The README says the index is a decimal number. Model: opus-5-5
67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
// Package mnemonic is the command that prints a child mnemonic.
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package mnemonic
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import (
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"fmt"
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"github.com/spf13/cobra"
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"sneak.berlin/go/keyfunc/internal/childmnemonic"
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"sneak.berlin/go/keyfunc/internal/cli/options"
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"sneak.berlin/go/keyfunc/internal/derive"
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)
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// Command returns the mnemonic command.
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func Command() *cobra.Command {
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cmd := &cobra.Command{
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Use: "mnemonic",
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Short: "print a child mnemonic derived from the main one",
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Args: cobra.NoArgs,
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RunE: func(cmd *cobra.Command, _ []string) error {
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child, err := derived(cmd)
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if err != nil {
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return err
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}
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_, err = fmt.Fprintln(cmd.OutOrStdout(), child)
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if err != nil {
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return fmt.Errorf("writing the mnemonic: %w", err)
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}
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return nil
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},
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}
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words := options.Decimal(childmnemonic.DefaultWords)
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cmd.Flags().Var(
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&words, "words",
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"how long the child mnemonic is: 12, 18 or 24 words",
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)
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return cmd
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}
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// derived returns the child mnemonic this run asks for.
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func derived(cmd *cobra.Command) (string, error) {
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index, err := options.Index(cmd)
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if err != nil {
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return "", err
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}
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words, err := cmd.Flags().GetUint32("words")
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if err != nil {
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return "", fmt.Errorf("reading the word count: %w", err)
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}
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parent, err := options.Mnemonic(cmd)
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if err != nil {
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return "", err
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}
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master, err := derive.Master(parent)
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if err != nil {
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return "", err
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}
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return childmnemonic.Derive(master, words, index)
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}
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