grafana-mcp-analyzer

#!/usr/bin/env node /** * 构建优化脚本 * * 使用esbuild对TypeScript编译后的代码进行进一步优化： * 1. 代码压缩 * 2. 去除注释 * 3. 保留源码映射 */ import { build } from 'esbuild'; import fs from 'fs/promises'; import path from 'path'; import { fileURLToPath } from 'url'; const __dirname = path.dirname(fileURLToPath(import.meta.url)); const distDir = path.resolve(__dirname, '../dist'); /** * 递归获取目录中的所有JS文件 */ async function getJsFiles(dir) { const files = await fs.readdir(dir, { withFileTypes: true }); const jsFiles = []; for (const file of files) { const fullPath = path.join(dir, file.name); if (file.isDirectory()) { const subDirFiles = await getJsFiles(fullPath); jsFiles.push(...subDirFiles); } else if (file.name.endsWith('.js')) { jsFiles.push(fullPath); } } return jsFiles; } /** * 优化单个JS文件 */ async function optimizeFile(filePath) { try { // 获取优化前的文件大小 const statBefore = await fs.stat(filePath); const sizeBefore = statBefore.size; const sourceMapPath = `${filePath}.map`; const hasSourceMap = await fs.access(sourceMapPath).then(() => true).catch(() => false); const result = await build({ entryPoints: [filePath], outfile: filePath, platform: 'node', format: 'esm', minify: true, sourcemap: hasSourceMap ? 'external' : false, bundle: false, write: true, target: ['node18'], logLevel: 'error', allowOverwrite: true }); // 获取优化后的文件大小 const statAfter = await fs.stat(filePath); const sizeAfter = statAfter.size; // 计算减少的百分比 const reduction = ((sizeBefore - sizeAfter) / sizeBefore * 100).toFixed(2); return { filePath, success: true, sizeBefore, sizeAfter, reduction }; } catch (error) { return { filePath, success: false, error: error.message }; } } /** * 主函数 */ async function main() { try { console.log('🔍 查找JS文件...'); const jsFiles = await getJsFiles(distDir); console.log(`📄 找到 ${jsFiles.length} 个JS文件`); // 获取优化前的总大小 let totalSizeBefore = 0; for (const file of jsFiles) { const stat = await fs.stat(file); totalSizeBefore += stat.size; } console.log('🔧 开始优化...'); const results = await Promise.all(jsFiles.map(optimizeFile)); // 统计结果 const succeeded = results.filter(r => r.success); const failed = results.filter(r => !r.success); // 计算总的优化结果 let totalSizeAfter = 0; let totalReduction = 0; console.log('\n📊 优化详情:'); console.log('------------------------------------------------------'); console.log('文件 优化前 优化后 减少'); console.log('------------------------------------------------------'); for (const result of succeeded) { const relativePath = path.relative(distDir, result.filePath); const beforeKB = (result.sizeBefore / 1024).toFixed(1); const afterKB = (result.sizeAfter / 1024).toFixed(1); totalSizeAfter += result.sizeAfter; console.log( `${relativePath.padEnd(36)} ${beforeKB.padStart(6)}KB ${afterKB.padStart(6)}KB ${result.reduction.padStart(5)}%` ); } console.log('------------------------------------------------------'); const totalBeforeKB = (totalSizeBefore / 1024).toFixed(1); const totalAfterKB = (totalSizeAfter / 1024).toFixed(1); const totalReductionPercent = ((totalSizeBefore - totalSizeAfter) / totalSizeBefore * 100).toFixed(2); console.log( `总计 ${totalBeforeKB.padStart(6)}KB ${totalAfterKB.padStart(6)}KB ${totalReductionPercent.padStart(5)}%` ); console.log('------------------------------------------------------'); console.log(`\n✅ 优化完成: ${succeeded.length}/${jsFiles.length} 个文件成功`); if (failed.length > 0) { console.log(`❌ ${failed.length} 个文件失败:`); failed.forEach(f => console.log(` - ${path.relative(distDir, f.filePath)}: ${f.error}`)); } console.log(`\n📦 最终打包大小: ${(totalSizeAfter / 1024).toFixed(2)} KB (优化前: ${(totalSizeBefore / 1024).toFixed(2)} KB)`); console.log(`🚀 减少: ${totalReductionPercent}%`); } catch (error) { console.error('❌ 优化失败:', error); process.exit(1); } } main();