chore: scripts to populate the policy registry

contracts/README.md

@@ -47,7 +47,7 @@ Refresh the list of deployed contracts by running `./scripts/generateDeployments
 - [PolicyRegistry](https://testnet.arbiscan.io/address/0x76262035D1b280cC0b08024177b837893bcAd3DA)
 - [SortitionSumTreeFactory](https://testnet.arbiscan.io/address/0x48ce286978C74c288eA6Bc9a536BcC899DF8D177)
 
-## Contributing
+## Getting Started
 
 ### Install the Dependencies
 
@@ -160,3 +160,33 @@ This must be done for each network separately.
 ```bash
 yarn hardhat --network <arbitrumGoerli|arbitrumRinkeby|arbitrum|goerli|rinkeby|mainnet> etherscan-verify
 ```
+
+## Ad-hoc procedures
+
+### Populating the policy registry
+
+#### 1/ Export the registry data from V1
+
+```bash
+yarn hardhat run scripts/getPoliciesV1.ts  --network mainnet | tee policies.v1.json
+```
+
+#### 2/ Import the data to V2 - Local Network
+
+Shell 1:
+
+```bash
+yarn hardhat node --tags Arbitration
+```
+
+Shell 2:
+
+```bash
+yarn hardhat run scripts/populatePolicyRegistry.ts --network localhost
+```
+
+#### 3/ Import the data to V2 - Public Testnet
+
+```bash
+yarn hardhat run scripts/populatePolicyRegistry.ts --network arbitrumRinkeby
+```

contracts/package.json

@@ -7,6 +7,9 @@
   "author": "Kleros",
   "license": "MIT",
   "packageManager": "yarn@3.1.0",
+  "engines": {
+    "node": ">=16.0.0"
+  },
   "volta": {
     "node": "16.13.0"
   },
@@ -49,6 +52,7 @@
     "hardhat-watcher": "^2.3.0",
     "json-schema": "^0.4.0",
     "mocha": "^10.0.0",
+    "node-fetch": "^3.2.10",
     "npm-run-all": "^4.1.5",
     "shelljs": "^0.8.5",
     "solhint": "^3.3.7",

contracts/scripts/getPoliciesV1.ts

@@ -0,0 +1,42 @@
+import { ethers } from "hardhat";
+import fetch from "node-fetch";
+
+interface Policy {
+  court: number;
+  uri: string;
+  name: string;
+  description: string;
+  summary: string;
+  requiredSkills: string;
+}
+
+async function main() {
+  const policyRegistryV1 = await ethers.getContractAt("PolicyRegistry", "0xCf1f07713d5193FaE5c1653C9f61953D048BECe4");
+
+  const fetchPolicy = (url: string): Promise<Policy> => {
+    return fetch(url).then((response) => response.json());
+  };
+
+  const fetchPolicyUri = (court: number): Promise<string> => {
+    return policyRegistryV1.policies(court);
+  };
+
+  const policies: Policy[] = [];
+  for (let court = 0; ; ++court) {
+    const uri = await fetchPolicyUri(court);
+    if (!uri) break;
+
+    const policy = await fetchPolicy("https://ipfs.kleros.io" + uri);
+    policy.court = court;
+    policy.uri = uri;
+    policies.push(policy);
+  }
+  console.log(JSON.stringify(policies, null, "\t"));
+}
+
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error(error);
+    process.exit(1);
+  });

contracts/scripts/populatePolicyRegistry.ts

@@ -0,0 +1,44 @@
+import { deployments, getNamedAccounts, getChainId, ethers } from "hardhat";
+import { PolicyRegistry } from "../typechain-types";
+import policiesV1 from "../policies.v1.json";
+
+enum HomeChains {
+  ARBITRUM_ONE = 42161,
+  ARBITRUM_RINKEBY = 421611,
+  ARBITRUM_GOERLI = 421613,
+  HARDHAT = 31337,
+}
+
+async function main() {
+  // fallback to hardhat node signers on local network
+  const deployer = (await getNamedAccounts()).deployer ?? (await ethers.getSigners())[0].address;
+
+  const chainId = Number(await getChainId());
+  if (!HomeChains[chainId]) {
+    console.error(`Aborting: script is not compatible with ${chainId}`);
+    return;
+  } else {
+    console.log("deploying to %s with deployer %s", HomeChains[chainId], deployer);
+  }
+
+  // WARNING: skip the Forking court at id 0, so the v1 courts are shifted by 1
+  const policiesV2 = policiesV1.map((policy) => ({ ...policy, court: policy.court + 1 }));
+
+  const policyRegistryDeployment = await deployments.get("PolicyRegistry");
+  const policyRegistry = (await ethers.getContractAt(
+    "PolicyRegistry",
+    policyRegistryDeployment.address
+  )) as PolicyRegistry;
+
+  for await (const policy of policiesV2) {
+    console.log("Populating policy for %s Court (%d): %s", policy.name, policy.court, policy.uri);
+    await policyRegistry.setPolicy(policy.court, policy.uri);
+  }
+}
+
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error(error);
+    process.exit(1);
+  });

contracts/tsconfig.json

@@ -7,7 +7,8 @@
     "outDir": "dist",
     "declaration": true,
     "sourceMap": true,
-    "noImplicitAny": false
+    "noImplicitAny": false,
+    "resolveJsonModule": true
   },
   "include": [
     "./src",

yarn.lock

@@ -2865,6 +2865,7 @@ __metadata:
     hardhat-watcher: ^2.3.0
     json-schema: ^0.4.0
     mocha: ^10.0.0
+    node-fetch: ^3.2.10
     npm-run-all: ^4.1.5
     shelljs: ^0.8.5
     solhint: ^3.3.7