sneak
90a7c96cd1
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The tool derives ed25519 SSH keys from a BIP-39 mnemonic and prints them, either as an authorized_keys line or as an unencrypted OpenSSH private key. Both README test vectors are asserted in the tests. The mnemonic is looked for in the order the README gives, and refused when it fails its checksum or when there is nowhere left to look. The repository standards come with it: the vendored linter configuration and policies, the script/ entrypoints with a thin Makefile, and a Gitea workflow. Linting happens only inside the image built from Dockerfile.lint, which pins the linter by hash, so the root Dockerfile runs the formatting check, the tests and the build, and script/cibuild runs the linter before it. Model: opus-5
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
// Package options holds the flags that every command has and reads
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// them back.
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package options
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import (
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"fmt"
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"git.eeqj.de/sneak/keyfunc/internal/mnemonic"
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"github.com/spf13/cobra"
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)
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// Add gives a command the flags that every command has. They are
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// persistent, so every command below it has them too.
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func Add(cmd *cobra.Command) {
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cmd.PersistentFlags().String(
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"mnemonic-command", "",
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"shell command whose output is the mnemonic",
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)
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cmd.PersistentFlags().Uint32P(
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"index", "n", 0,
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"which key to derive",
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)
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}
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// Index returns the key index the user asked for.
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func Index(cmd *cobra.Command) (uint32, error) {
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index, err := cmd.Flags().GetUint32("index")
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if err != nil {
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return 0, fmt.Errorf("reading the index: %w", err)
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}
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return index, nil
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}
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// Mnemonic returns the mnemonic, from the first source that has one.
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func Mnemonic(cmd *cobra.Command) (string, error) {
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command, err := cmd.Flags().GetString("mnemonic-command")
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if err != nil {
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return "", fmt.Errorf("reading the mnemonic command: %w", err)
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}
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return mnemonic.Read(cmd.Context(), command)
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}
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