refactor hash by js side

scripts/bundle-metadata-plugin.js

@@ -0,0 +1,184 @@
+const crypto = require('crypto');
+const fs = require('fs');
+const path = require('path');
+const PROJECT_ROOT = path.resolve(__dirname, '../../..');
+console.log(`[Bundle Metadata] Project root: ${PROJECT_ROOT}`);
+
+function calculateContentHash(bundleCode) {
+  const hash = crypto.createHash('sha256');
+  hash.update(bundleCode, 'utf8');
+  return hash.digest('hex');
+}
+
+function generateMetadataInjection(contentHash) {
+  return `// Auto-injected bundle metadata by Metro plugin
+  var __BUNDLE_METADATA__ = {
+    contentHash: '${contentHash}'
+  };
+`;
+}
+
+function generateMetadataComment(contentHash) {
+  return `\n//# BUNDLE_METADATA ${JSON.stringify({
+  contentHash
+})}`;
+}
+
+function setupSingleHermesc(hermescPath, locationName) {
+  const hermescDir = path.dirname(hermescPath);
+  const backupHermescPath = path.join(hermescDir, '_hermesc');
+  const wrapperSourcePath = path.join(__dirname, 'hermesc-wrapper.js');
+
+  if (fs.existsSync(backupHermescPath)) {
+    console.log(`⏭️  [Hermesc Setup] ${locationName} already configured, skipping...`);
+    return true;
+  }
+
+  if (!fs.existsSync(hermescPath)) {
+    console.log(`ℹ️  [Hermesc Setup] ${locationName} hermesc not found at: ${hermescPath}`);
+    return false;
+  }
+
+  if (!fs.existsSync(wrapperSourcePath)) {
+    console.error(`❌ [Hermesc Setup] Wrapper script not found at: ${wrapperSourcePath}`);
+    return false;
+  }
+
+  try {
+    console.log(`🔧 [Hermesc Setup] Setting up hermesc wrapper for ${locationName}...`);
+
+    fs.renameSync(hermescPath, backupHermescPath);
+    console.log(`✅ [Hermesc Setup] ${locationName}: Renamed hermesc -> _hermesc`);
+
+    const shellScript = `#!/bin/bash
+# Hermesc wrapper script - auto-generated
+# This script calls the Node.js wrapper which handles post-processing
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+WRAPPER_SCRIPT="${wrapperSourcePath}"
+
+find_node() {
+  if command -v node >/dev/null 2>&1; then
+    command -v node
+    return 0
+  fi
+
+  local NODE_PATHS=(
+    "/usr/local/bin/node"
+    "/opt/homebrew/bin/node"
+    "$HOME/.nvm/versions/node/$(ls -t "$HOME/.nvm/versions/node" 2>/dev/null | head -1)/bin/node"
+    "/usr/bin/node"
+  )
+
+  for node_path in "\${NODE_PATHS[@]}"; do
+    if [ -x "$node_path" ]; then
+      echo "$node_path"
+      return 0
+    fi
+  done
+
+  echo "Error: node executable not found" >&2
+  echo "Please ensure Node.js is installed and accessible" >&2
+  exit 1
+}
+
+NODE_BIN=$(find_node)
+exec "$NODE_BIN" "$WRAPPER_SCRIPT" "$@"
+`;
+
+    fs.writeFileSync(hermescPath, shellScript, { mode: 0o755 });
+    console.log(`✅ [Hermesc Setup] ${locationName}: Created hermesc wrapper shell script`);
+
+    console.log(`🎉 [Hermesc Setup] ${locationName} configured successfully!`);
+    console.log(`📋 [Hermesc Setup] ${locationName} details:`);
+    console.log(`   - Original: ${backupHermescPath}`);
+    console.log(`   - Wrapper: ${hermescPath}`);
+    console.log(`   - Handler: ${wrapperSourcePath}`);
+
+    return true;
+  } catch (error) {
+    console.error(`❌ [Hermesc Setup] Failed to setup hermesc wrapper for ${locationName}:`, error);
+
+    if (fs.existsSync(backupHermescPath) && !fs.existsSync(hermescPath)) {
+      try {
+        fs.renameSync(backupHermescPath, hermescPath);
+        console.log(`🔄 [Hermesc Setup] ${locationName}: Rolled back changes`);
+      } catch (rollbackError) {
+        console.error(`❌ [Hermesc Setup] ${locationName}: Rollback failed:`, rollbackError);
+      }
+    }
+
+    return false;
+  }
+}
+
+function setupHermescWrapper() {
+  const wrapperSourcePath = path.join(__dirname, 'hermesc-wrapper.js');
+
+  if (!fs.existsSync(wrapperSourcePath)) {
+    console.error(`❌ [Hermesc Setup] Wrapper script not found at: ${wrapperSourcePath}`);
+    return;
+  }
+
+  try {
+    fs.chmodSync(wrapperSourcePath, 0o755);
+  } catch (error) {
+    console.error('❌ [Hermesc Setup] Failed to set execute permissions on wrapper:', error);
+  }
+
+  console.log('🔧 [Hermesc Setup] Starting hermesc wrapper setup...');
+
+  const hermescLocations = [
+    {
+      path: path.join(PROJECT_ROOT, 'node_modules/react-native/sdks/hermesc/osx-bin/hermesc'),
+      name: 'Node Modules'
+    },
+    {
+      path: path.join(PROJECT_ROOT, 'ios/Pods/hermes-engine/destroot/bin/hermesc'),
+      name: 'iOS Pods'
+    }
+  ];
+
+  let successCount = 0;
+  let totalProcessed = 0;
+
+  for (const location of hermescLocations) {
+    const success = setupSingleHermesc(location.path, location.name);
+    if (success) {
+      successCount++;
+    }
+    totalProcessed++;
+  }
+
+  console.log(`\n📊 [Hermesc Setup] Summary: ${successCount}/${totalProcessed} locations configured successfully`);
+}
+
+function metadataSerializer(entryPoint, preModules, graph, options) {
+  setupHermescWrapper();
+  const baseJSBundle = require('metro/src/DeltaBundler/Serializers/baseJSBundle');
+  const bundleToString = require('metro/src/lib/bundleToString');
+  const bundle = baseJSBundle(entryPoint, preModules, graph, options);
+  const { code: bundleCode } = bundleToString(bundle);
+  const contentHash = calculateContentHash(bundleCode);
+  const metadataInjection = generateMetadataInjection(contentHash);
+  const metadataComment = generateMetadataComment(contentHash);
+  const hashFilePath = path.join(PROJECT_ROOT, 'bundle-hash.json');
+
+  try {
+    const hashData = {
+      contentHash,
+      timestamp: new Date().toISOString(),
+    };
+    fs.writeFileSync(hashFilePath, JSON.stringify(hashData, null, 2));
+    console.log(`✅ [Metro] Saved hash to: ${hashFilePath}`);
+    console.log(`🔐 [Metro] Hash: ${contentHash.slice(0, 16)}...`);
+  } catch (error) {
+    console.error('❌ [Metro] Failed to save hash file:', error);
+  }
+
+  return bundleCode + metadataInjection + metadataComment;
+}
+
+module.exports = {
+  metadataSerializer,
+};

scripts/hermesc-wrapper.js

@@ -0,0 +1,97 @@
+#!/usr/bin/env node
+
+const { spawn } = require('child_process');
+const path = require('path');
+const fs = require('fs');
+const PROJECT_ROOT = path.resolve(__dirname, '../../..');
+const realHermescPath = path.join(PROJECT_ROOT, 'node_modules/react-native/sdks/hermesc/osx-bin/_hermesc');
+const args = process.argv.slice(2);
+
+console.log(`[Hermesc Wrapper] Executing Hermes compilation...`);
+console.log(`[Hermesc Wrapper] Args:`, args.join(' '));
+
+const isCompileOperation = args.includes('-emit-binary');
+let outputFile = null;
+
+const outIndex = args.indexOf('-out');
+if (outIndex !== -1 && outIndex + 1 < args.length) {
+  outputFile = args[outIndex + 1];
+}
+
+const hermesc = spawn(realHermescPath, args, {
+  stdio: 'inherit',
+  env: process.env
+});
+
+hermesc.on('error', (error) => {
+  console.error(`[Hermesc Wrapper] ❌ Failed to start hermesc:`, error);
+  process.exit(1);
+});
+
+hermesc.on('close', (code) => {
+  console.log(`[Hermesc Wrapper] Hermes compilation completed with code: ${code}`);
+
+  if (code === 0 && isCompileOperation && outputFile) {
+    console.log(`[Hermesc Wrapper] 🔄 Post-processing HBC file: ${outputFile}`);
+
+    setTimeout(() => {
+      processHBCFile(outputFile);
+    }, 500);
+  } else {
+    process.exit(code);
+  }
+});
+
+function processHBCFile(hbcFilePath) {
+  const hashFilePath = path.join(PROJECT_ROOT, 'bundle-hash.json');
+
+  if (!fs.existsSync(hashFilePath)) {
+    console.warn(`[Hermesc Wrapper] ⚠️  Hash file not found: ${hashFilePath}`);
+    console.warn(`[Hermesc Wrapper] Skipping metadata injection.`);
+    process.exit(0);
+    return;
+  }
+
+  if (!fs.existsSync(hbcFilePath)) {
+    console.warn(`[Hermesc Wrapper] ⚠️  HBC file not found: ${hbcFilePath}`);
+    console.warn(`[Hermesc Wrapper] Skipping metadata injection.`);
+    process.exit(0);
+    return;
+  }
+
+  try {
+    const hashData = JSON.parse(fs.readFileSync(hashFilePath, 'utf8'));
+    const { contentHash } = hashData;
+
+    console.log(`[Hermesc Wrapper] 📝 Injecting metadata into HBC...`);
+    console.log(`[Hermesc Wrapper] Hash: ${contentHash.slice(0, 16)}...`);
+
+    const hbcBuffer = fs.readFileSync(hbcFilePath);
+
+    const metadata = { contentHash };
+    const metadataJson = JSON.stringify(metadata);
+
+    const MAGIC = Buffer.from('RNUPDATE', 'utf8');
+    const jsonBuffer = Buffer.from(metadataJson, 'utf8');
+    const lengthBuffer = Buffer.alloc(4);
+    lengthBuffer.writeUInt32LE(jsonBuffer.length);
+
+    const finalBuffer = Buffer.concat([
+      hbcBuffer,
+      MAGIC,
+      jsonBuffer,
+      lengthBuffer,
+      MAGIC,
+    ]);
+
+    fs.writeFileSync(hbcFilePath, finalBuffer);
+
+    console.log(`[Hermesc Wrapper] ✅ Successfully injected metadata into: ${hbcFilePath}`);
+    console.log(`[Hermesc Wrapper] 🧹 Cleaning up hash file...`);
+
+    process.exit(0);
+  } catch (error) {
+    console.error(`[Hermesc Wrapper] ❌ Failed to process HBC file:`, error);
+    process.exit(1);
+  }
+}