Kismet Hasanaj
59 lines
2.0 KiB
JavaScript
59 lines
2.0 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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Object.defineProperty(exports, "saveCpuProfile", {
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enumerable: true,
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get: function() {
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return saveCpuProfile;
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}
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});
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const privateCpuProfileName = process.env.__NEXT_PRIVATE_CPU_PROFILE;
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const isCpuProfileEnabled = process.env.NEXT_CPU_PROF || privateCpuProfileName;
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const cpuProfileDir = process.env.NEXT_CPU_PROF_DIR;
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let session = null;
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let profileSaved = false;
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if (isCpuProfileEnabled) {
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const { Session } = require('inspector');
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session = new Session();
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session.connect();
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session.post('Profiler.enable');
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session.post('Profiler.start');
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process.on('exit', ()=>{
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saveCpuProfile();
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});
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}
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function saveCpuProfile() {
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if (!session || profileSaved || !isCpuProfileEnabled) {
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return;
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}
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profileSaved = true;
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const fs = require('fs');
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const path = require('path');
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session.post('Profiler.stop', (error, param)=>{
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if (error) {
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console.error('Cannot generate CPU profiling:', error);
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return;
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}
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const timestamp = new Date().toISOString().replace(/[:.]/g, '-').slice(0, 19);
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const baseName = privateCpuProfileName || 'cpu-profile';
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const filename = `${baseName}-${timestamp}.cpuprofile`;
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let outputPath;
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if (cpuProfileDir) {
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if (!fs.existsSync(cpuProfileDir)) {
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fs.mkdirSync(cpuProfileDir, {
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recursive: true
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});
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}
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outputPath = path.join(cpuProfileDir, filename);
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} else {
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outputPath = `./${filename}`;
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}
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fs.writeFileSync(outputPath, JSON.stringify(param.profile));
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const { green } = require('../../lib/picocolors');
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console.log(`\n${green('CPU profile saved:')} ${outputPath}`);
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console.log('Open in Chrome DevTools → Performance tab → Load profile');
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});
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}
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//# sourceMappingURL=cpu-profile.js.map
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