sneak
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REPO_POLICIES.md sets the Go module root to sneak.berlin/go/<name>. go.mod, every import of the old path and the -X path in the Makefile LDFLAGS now use sneak.berlin/go/keyfunc; make fmt moved those imports to their new place in the sort order. The old path keeps no alias. The README gives the go install line next to the build from a clone and drops this issue from its TODO list, which now names the open 1.0 issues. Model: opus-5-5
66 lines
1.4 KiB
Go
66 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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cmd.Flags().Uint32(
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"words", childmnemonic.DefaultWords,
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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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