Testnet chain upgrade script

.gitignore

@@ -15,3 +15,6 @@ pallets/.DS_Store
 
 *-babe.json
 *-gran.json
+
+**/node_modules/
+polkadot-js-scripts/yarn-error.log

polkadot-js-scripts/chainUpgrade.js

@@ -0,0 +1,62 @@
+// Import the API & Provider and some utility functions
+const { ApiPromise, WsProvider } = require('@polkadot/api');
+
+// import the test keyring (already has dev keys for Alice, Bob, Charlie, Eve & Ferdie)
+const testKeyring = require('@polkadot/keyring/testing');
+
+const fs = require('fs');
+
+async function main () {
+  const wsEndpoint = 'ws://testnet-harbour.datahighway.com';
+  // Initialise the provider to connect to the local node
+  // const provider = new WsProvider('ws://127.0.0.1:9944');
+  const provider = new WsProvider(wsEndpoint);
+
+  // Create the API and wait until ready (optional provider passed through)
+  const api = await ApiPromise.create({ provider });
+
+  // Retrieve the upgrade key from the chain state
+  const adminId = await api.query.sudo.key();
+
+  // Find the actual keypair in the keyring (if this is a changed value, the key
+  // needs to be added to the keyring before - this assumes we have defaults, i.e.
+  // Alice as the key - and this already exists on the test keyring)
+  const keyring = testKeyring.default();
+  const adminPair = keyring.getPair(adminId.toString());
+
+  // Retrieve the runtime to upgrade
+  const code = fs.readFileSync('../target/release/wbuild/datahighway-testnet-runtime/datahighway_testnet_runtime.compact.wasm').toString('hex');
+  console.log('adminId', adminId);
+  console.log('adminPair', adminPair);
+
+  //   const proposal = api.tx.system && api.tx.system.setCode
+//     ? api.tx.system.setCode(`0x${code}`) // For newer versions of Substrate
+//     : api.tx.consensus.setCode(`0x${code}`); // For previous versions
+
+//   console.log(`Upgrading from ${adminId}, ${code.length / 2} bytes`);
+
+//   // Perform the actual chain upgrade via the sudo module
+//   api.tx.sudo
+//     .sudo(proposal)
+//     .signAndSend(adminPair, ({ events = [], status }) => {
+//       console.log('Proposal status:', status.type);
+
+//       if (status.isInBlock) {
+//         console.error('You have just upgraded your chain');
+
+//         console.log('Included at block hash', status.asInBlock.toHex());
+//         console.log('Events:');
+
+//         console.log(JSON.stringify(events.toHuman(), null, 2));
+//       } else if (status.isFinalized) {
+//         console.log('Finalized block hash', status.asFinalized.toHex());
+
+//         process.exit(0);
+//       }
+//     });
+}
+
+main().catch((error) => {
+  console.error(error);
+  process.exit(-1);
+});

polkadot-js-scripts/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "polkadot-js-scripts",
+  "version": "1.0.0",
+  "main": "index.js",
+  "author": "MXC Foundation GmbH <https://t.me/mxcfoundation>",
+  "license": "Unlicense",
+  "dependencies": {
+    "@polkadot/api": "^4.4.1",
+    "@polkadot/keyring": "^6.0.5"
+  }
+}