Add export command

Author: kseo

src/command/export.ts

@@ -0,0 +1,18 @@
+import { CCKey, SecretStorage } from "codechain-keystore";
+
+import { AccountType } from "../types";
+import { findPublicKey } from "../util";
+
+export async function exportKey(
+    cckey: CCKey,
+    accountType: AccountType,
+    address: string,
+    passphrase: string
+): Promise<SecretStorage> {
+    const publicKeys = await cckey[accountType].getKeys();
+    const publicKey = findPublicKey(accountType, publicKeys, address);
+    return cckey[accountType].exportKey({
+        publicKey,
+        passphrase
+    });
+}

src/index.ts

@@ -8,13 +8,15 @@ import * as process from "process";
 
 import { createKey } from "./command/create";
 import { deleteKey } from "./command/delete";
+import { exportKey } from "./command/export";
 import { importKey } from "./command/import";
 import { listKeys } from "./command/list";
 import { CLIError, CLIErrorType } from "./error";
 import {
     AccountType,
     CreateOption,
     DeleteOption,
+    ExportOption,
     ImportOption,
     ListOption
 } from "./types";
@@ -52,6 +54,13 @@ program
     .option("-p, --passphrase <passphrase>", "passphrase")
     .action(handleError(importCommand));
 
+program
+    .command("export")
+    .description("export the key")
+    .option("-a, --address <address>", "address")
+    .option("-p, --passphrase <passphrase>", "passphrase")
+    .action(handleError(exportCommand));
+
 function handleError(
     f: (...args: any[]) => Promise<void>
 ): (...args: any[]) => Promise<void> {
@@ -93,6 +102,15 @@ async function importCommand(path: string, option: ImportOption) {
     await importKey(cckey, accountType, JSON.parse(contents), passphrase);
 }
 
+async function exportCommand(option: ExportOption) {
+    const cckey = await CCKey.create();
+    const accountType = parseAccountType(option.parent.accountType);
+    const address = parseAddress(option.address);
+    const passphrase = parsePassphrase(option.passphrase);
+    const secret = await exportKey(cckey, accountType, address, passphrase);
+    console.log(JSON.stringify(secret, null, 2));
+}
+
 program.on("--help", () => {
     console.log(`  Examples:
 

src/types.ts

@@ -27,3 +27,11 @@ export interface ImportOption {
     };
     passphrase: string;
 }
+
+export interface ExportOption {
+    parent: {
+        accountType: string;
+    };
+    address: string;
+    passphrase: string;
+}