Init script and CI

.github/workflows/coverage.yml

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+name: code coverage
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  comment-forge-coverage:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Install foundry
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          version: nightly
+      - name: Run Forge build
+        run: |
+          forge --version
+          forge build --sizes
+        id: build
+      - name: Run forge coverage
+        id: coverage
+        run: |
+          {
+          echo 'COVERAGE<<EOF'
+          forge coverage | grep '^|' | grep -v 'test/'
+          echo EOF
+          } >> "$GITHUB_OUTPUT"
+        env:
+          FOUNDRY_RPC_URL: "${{ secrets.RPC_URL }}"
+
+      - name: Check coverage is updated
+        uses: actions/github-script@v5
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const fs = require('fs');
+            const file = "coverage.txt"
+            if(!fs.existsSync(file)) {
+              console.log("Nothing to check");
+              return
+            }
+            const currentCoverage = fs.readFileSync(file, "utf8").trim();
+            const newCoverage = (`${{ steps.coverage.outputs.COVERAGE }}`).trim();
+            if (newCoverage != currentCoverage) {
+              core.setFailed(`Code coverage not updated. Run : forge coverage | grep '^|' | grep -v 'test/'  > coverage.txt`);
+            }
+
+      - name: Comment on PR
+        id: comment
+        uses: actions/github-script@v5
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const {data: comments} = await github.rest.issues.listComments({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.issue.number, 
+              })
+
+            const botComment = comments.find(comment => comment.user.id === 41898282)
+
+            const output = `${{ steps.coverage.outputs.COVERAGE }}`;
+            const commentBody = `Forge code coverage:\n${output}\n`;
+
+            if (botComment) {
+              github.rest.issues.updateComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                comment_id: botComment.id,
+                body: commentBody
+              })
+            } else {
+              github.rest.issues.createComment({
+                issue_number: context.issue.number,
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                body: commentBody
+              });
+            }

.github/workflows/lint.yml

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+name: Lint
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  run-linters:
+    name: Run linters
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v3
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          version: nightly
+
+      - name: Lint
+        run: forge fmt --check

.github/workflows/tests-merge.yml

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+name: Tests
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  forge-tests:
+    name: Forge Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 16
+          cache-dependency-path: "./test/js-scripts"
+          cache: "yarn"
+
+      - run: yarn
+        working-directory: ./test/js-scripts
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          version: nightly
+
+      - name: Build
+        run: forge build
+        env:
+          FOUNDRY_PROFILE: ci
+
+      - name: Run tests
+        run: forge test --isolate -vvv
+        env:
+          FOUNDRY_PROFILE: ci
+          FORGE_SNAPSHOT_CHECK: true

.github/workflows/tests-pr.yml

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+name: Tests
+
+on:
+  pull_request:
+    branches:
+      - main
+      - dev
+
+jobs:
+  forge-tests:
+    name: Forge Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 16
+          cache-dependency-path: "./test/js-scripts"
+          cache: "yarn"
+
+      - run: yarn
+        working-directory: ./test/js-scripts
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          version: nightly
+
+      - name: Build
+        run: forge build
+        env:
+          FOUNDRY_PROFILE: pr
+
+      - name: Run tests
+        run: forge test --isolate -vvv
+        env:
+          FOUNDRY_PROFILE: pr
+          FORGE_SNAPSHOT_CHECK: true

.gitignore

@@ -1,6 +1,7 @@
 # Compiler files
 cache/
 out/
+*node_modules/
 
 # Ignores development broadcast logs
 !/broadcast

price_updater/.env.example

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+# Sepolia
+MAINNET_RPC_URL=https://example.com
+ARBITRUM_RPC_URL=https://example.com
+PRIVATE_KEY=0x2......
+TARGET_CHAIN=10003
+TARGET_ADDRESS=0x744836a91f5151c6ef730eb7e07c232997debaaa
+PRICE_FEED=0x38211b7ed71fa91fd65b69b6bf2c02efe60fc35b
+PRICE_FEED_SENDER=0xe572a8631a49ec4c334812bb692beecf934ac4e9
+
+# Mainnet
+MAINNET_RPC_URL=https://example.com
+ARBITRUM_RPC_URL=https://example.com
+PRIVATE_KEY=0x2......
+TARGET_CHAIN=23
+TARGET_ADDRESS=0xbd335c16c94be8c4dd073ae376ddf78bec1858df
+PRICE_FEED=0xba74737a078c05500dd98c970909e4a3b90c35c6
+PRICE_FEED_SENDER=0xf7d4e7273e5015c96728a6b02f31c505ee184603

price_updater/requirements.txt

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+aiohttp==3.9.5
+aiosignal==1.3.1
+attrs==23.2.0
+bitarray==2.9.2
+certifi==2024.2.2
+charset-normalizer==3.3.2
+ckzg==1.0.2
+cytoolz==0.12.3
+eth-account==0.11.2
+eth-hash==0.7.0
+eth-keyfile==0.8.1
+eth-keys==0.5.1
+eth-rlp==1.0.1
+eth-typing==4.2.3
+eth-utils==4.1.1
+eth_abi==5.1.0
+frozenlist==1.4.1
+hexbytes==0.3.1
+idna==3.7
+jsonschema==4.22.0
+jsonschema-specifications==2023.12.1
+lru-dict==1.2.0
+multidict==6.0.5
+parsimonious==0.10.0
+protobuf==5.27.0
+pycryptodome==3.20.0
+python-dotenv==1.0.1
+pyunormalize==15.1.0
+referencing==0.35.1
+regex==2024.5.15
+requests==2.32.2
+rlp==4.0.1
+rpds-py==0.18.1
+toolz==0.12.1
+typing_extensions==4.12.0
+urllib3==2.2.1
+web3==6.19.0
+websockets==12.0
+yarl==1.9.4

price_updater/update_price.py

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+import os
+import time
+from web3 import Web3
+from dotenv import load_dotenv
+
+load_dotenv()
+
+TWELVE_HOURS = 12 * 60 * 60
+
+MAINNET_PROVIDER = Web3(Web3.HTTPProvider(os.getenv("MAINNET_RPC_URL")))
+ARBITRUM_PROVIDER = Web3(Web3.HTTPProvider(os.getenv("ARBITRUM_RPC_URL")))
+PRIVATE_KEY = os.getenv("PRIVATE_KEY")
+ACCOUNT = MAINNET_PROVIDER.eth.account.from_key(PRIVATE_KEY)
+ACCOUNT_ADDRESS = ACCOUNT.address
+
+price_feed_abi = [
+    {"constant": True, "inputs": [], "name": "latestTimestamp", "outputs": [{"name": "", "type": "uint256"}], "payable": False, "stateMutability": "view", "type": "function"},
+    {"constant": False, "inputs": [{"name": "targetChain", "type": "uint16"}, {"name": "targetAddress", "type": "address"}], "name": "syncRate", "outputs": [], "payable": True, "stateMutability": "payable", "type": "function"},
+    {"constant": True, "inputs": [{"name": "targetChain", "type": "uint16"}], "name": "quoteRateSync", "outputs": [{"name": "cost", "type": "uint256"}], "payable": False, "stateMutability": "view", "type": "function"},
+]
+
+price_feed_address = Web3.to_checksum_address(os.getenv("PRICE_FEED"))  # Mainnet
+price_feed_sender_address = Web3.to_checksum_address(os.getenv("PRICE_FEED_SENDER"))  # Mainnet
+target_chain = int(os.getenv("TARGET_CHAIN"))
+target_address = Web3.to_checksum_address(os.getenv("TARGET_ADDRESS"))  # Arbitrum
+
+def check_and_sync():
+    price_feed = MAINNET_PROVIDER.eth.contract(address=price_feed_address, abi=price_feed_abi)
+    price_feed_sender = MAINNET_PROVIDER.eth.contract(address=price_feed_sender_address, abi=price_feed_abi)
+
+    # Step 1: Check latest timestamp
+    latest_timestamp = price_feed.functions.latestTimestamp().call()
+    current_time = int(time.time())
+
+    if current_time - latest_timestamp < TWELVE_HOURS:
+        print("Less than 12 hours since the last update. No action needed.")
+        return
+
+    # Step 2: Get the cost
+    current_rate = price_feed_sender.functions.quoteRateSync(target_chain).call()
+
+    # Step 3: Sync the rate
+    tx = price_feed_sender.functions.syncRate(target_chain, target_address).build_transaction({
+        'chainId': 1,  # Mainnet
+        'gas': 200000,
+        'gasPrice': Web3.to_wei('20', 'gwei'),
+        'nonce': MAINNET_PROVIDER.eth.get_transaction_count(ACCOUNT.address),
+        'value': current_rate
+    })
+
+    signed_tx = ACCOUNT.sign_transaction(tx)
+    tx_hash = MAINNET_PROVIDER.eth.send_raw_transaction(signed_tx.rawTransaction)
+
+    print(f"Sync transaction sent: {tx_hash.hex()}")
+    receipt = MAINNET_PROVIDER.eth.wait_for_transaction_receipt(tx_hash)
+    print("Sync transaction confirmed.")
+
+if __name__ == "__main__":
+    try:
+        check_and_sync()
+    except Exception as e:
+        print(f"Error in check_and_sync: {e}")
+        exit(1)