fix: allow updating start block with START_BLOCK env (#67)

Author: PierreJeanjacquot

Dockerfile

@@ -8,6 +8,7 @@ COPY package*.json .
 COPY schema.graphql .
 COPY subgraph.yaml .
 COPY networks.json .
+COPY update-networks.js .
 COPY src ./src
 
 RUN npm ci

package.json

@@ -16,7 +16,8 @@
     "create": "dotenv -e .env -- sh -c 'graph create ${NETWORK_NAME:-bellecour}/${DEPLOY_ENV:+$DEPLOY_ENV-}poco-v5 --node ${GRAPHNODE_URL:-http://localhost:8020}'",
     "deploy": "dotenv -e .env -- sh -c 'graph deploy ${NETWORK_NAME:-bellecour}/${DEPLOY_ENV:+$DEPLOY_ENV-}poco-v5 --node ${GRAPHNODE_URL:-http://localhost:8020} --ipfs ${IPFS_URL:-http://localhost:5001}  --network ${NETWORK_NAME:-bellecour} --version-label ${VERSION_LABEL:-dev}'",
     "deploy-studio": "dotenv -e .env -- sh -c 'graph deploy ${SUBGRAPH_SLUG} --deploy-key ${SUBGRAPH_DEPLOY_KEY} --network ${SUBGRAPH_NETWORK_NAME} --version-label ${VERSION_LABEL}'",
-    "all": "npm run build && npm run create && npm run deploy",
+    "update-networks": "node update-networks.js",
+    "all": "npm run update-networks && npm run build && npm run create && npm run deploy",
     "stop-test-stack": "cd test-stack && docker compose down --remove-orphans --volumes",
     "start-test-stack": "npm run stop-test-stack && cd test-stack && export NETWORK_NAME=${NETWORK_NAME:-bellecour} && tsx prepare-test-env.ts && docker compose build && docker compose up -d",
     "check-format": "prettier \"(src|tests|test-stack)/**/*.{js,ts}\" --check",
@@ -58,4 +59,4 @@
   "dependencies": {
     "@iexec/poco": "^5.5.0"
   }
-}
+}

update-networks.js

@@ -0,0 +1,73 @@
+import { existsSync, readFileSync, writeFileSync } from 'fs';
+import { dirname, join } from 'path';
+import { fileURLToPath } from 'url';
+
+// Get current file directory in ESM
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const { NETWORK_NAME, START_BLOCK } = process.env; // Get the network name from env
+
+// Path to the networks.json file (one directory up)
+const networksFilePath = join(__dirname, 'networks.json');
+
+/**
+ * Update networks.json file with the current block number
+ */
+async function updateNetworksFile() {
+    if (!NETWORK_NAME) {
+        console.warn(
+            'No NETWORK_NAME environment variable provided. The networks.json file will not be updated.',
+        );
+        return;
+    }
+    if (!START_BLOCK) {
+        console.warn(
+            'No START_BLOCK environment variable provided. The networks.json file will not be updated.',
+        );
+        return;
+    }
+
+    if (!existsSync(networksFilePath)) {
+        console.warn(`networks.json file not found at ${networksFilePath}`);
+        return;
+    }
+
+    try {
+        // Read the current networks.json file
+        const networksData = JSON.parse(readFileSync(networksFilePath, 'utf8'));
+
+        // Check if the specified network exists in the file
+        if (networksData[NETWORK_NAME]) {
+            console.log(`Updating startBlock for network '${NETWORK_NAME}' to ${START_BLOCK}`);
+
+            // Update all startBlock values for the specified network
+            Object.keys(networksData[NETWORK_NAME]).forEach((contract) => {
+                networksData[NETWORK_NAME][contract].startBlock = parseInt(START_BLOCK, 10);
+            });
+
+            // Write the updated networks.json file
+            writeFileSync(networksFilePath, JSON.stringify(networksData, null, 4));
+            console.log(`Successfully updated ${networksFilePath}`);
+        } else {
+            console.warn(`Network '${NETWORK_NAME}' not found in networks.json. File unchanged.`);
+        }
+    } catch (error) {
+        console.error(`Error updating networks.json file: ${error}`);
+    }
+}
+
+/**
+ * Main function to orchestrate the process
+ */
+async function main() {
+    try {
+        await updateNetworksFile();
+    } catch (error) {
+        console.error(error);
+        process.exit(1);
+    }
+}
+
+// Run the main function
+main();