Files
keyfunc/internal/cli/mnemonic/mnemonic.go
T
clawbot 8d1c873bb7
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Move the Go module to sneak.berlin/go/keyfunc (closes #15)
The module path becomes sneak.berlin/go/keyfunc, as the repo policy sets for Go modules: go.mod, every import and the -X path in the Makefile. The old path gets no alias. The README gives a go install line for the new path, which resolves with @latest only once main carries the move, and its TODO list now names the open 1.0 issues.

Model: opus-5-5
2026-10-04 01:42:43 +02:00

66 lines
1.4 KiB
Go

// Package mnemonic is the command that prints a child mnemonic.
package mnemonic
import (
"fmt"
"github.com/spf13/cobra"
"sneak.berlin/go/keyfunc/internal/childmnemonic"
"sneak.berlin/go/keyfunc/internal/cli/options"
"sneak.berlin/go/keyfunc/internal/derive"
)
// Command returns the mnemonic command.
func Command() *cobra.Command {
cmd := &cobra.Command{
Use: "mnemonic",
Short: "print a child mnemonic derived from the main one",
Args: cobra.NoArgs,
RunE: func(cmd *cobra.Command, _ []string) error {
child, err := derived(cmd)
if err != nil {
return err
}
_, err = fmt.Fprintln(cmd.OutOrStdout(), child)
if err != nil {
return fmt.Errorf("writing the mnemonic: %w", err)
}
return nil
},
}
cmd.Flags().Uint32(
"words", childmnemonic.DefaultWords,
"how long the child mnemonic is: 12, 18 or 24 words",
)
return cmd
}
// derived returns the child mnemonic this run asks for.
func derived(cmd *cobra.Command) (string, error) {
index, err := options.Index(cmd)
if err != nil {
return "", err
}
words, err := cmd.Flags().GetUint32("words")
if err != nil {
return "", fmt.Errorf("reading the word count: %w", err)
}
parent, err := options.Mnemonic(cmd)
if err != nil {
return "", err
}
master, err := derive.Master(parent)
if err != nil {
return "", err
}
return childmnemonic.Derive(master, words, index)
}