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File size: 1,997 Bytes
c592d77 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | "use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "saveCpuProfile", {
enumerable: true,
get: function() {
return saveCpuProfile;
}
});
const privateCpuProfileName = process.env.__NEXT_PRIVATE_CPU_PROFILE;
const isCpuProfileEnabled = process.env.NEXT_CPU_PROF || privateCpuProfileName;
const cpuProfileDir = process.env.NEXT_CPU_PROF_DIR;
let session = null;
let profileSaved = false;
if (isCpuProfileEnabled) {
const { Session } = require('inspector');
session = new Session();
session.connect();
session.post('Profiler.enable');
session.post('Profiler.start');
process.on('exit', ()=>{
saveCpuProfile();
});
}
function saveCpuProfile() {
if (!session || profileSaved || !isCpuProfileEnabled) {
return;
}
profileSaved = true;
const fs = require('fs');
const path = require('path');
session.post('Profiler.stop', (error, param)=>{
if (error) {
console.error('Cannot generate CPU profiling:', error);
return;
}
const timestamp = new Date().toISOString().replace(/[:.]/g, '-').slice(0, 19);
const baseName = privateCpuProfileName || 'cpu-profile';
const filename = `${baseName}-${timestamp}.cpuprofile`;
let outputPath;
if (cpuProfileDir) {
if (!fs.existsSync(cpuProfileDir)) {
fs.mkdirSync(cpuProfileDir, {
recursive: true
});
}
outputPath = path.join(cpuProfileDir, filename);
} else {
outputPath = `./${filename}`;
}
fs.writeFileSync(outputPath, JSON.stringify(param.profile));
const { green } = require('../../lib/picocolors');
console.log(`\n${green('CPU profile saved:')} ${outputPath}`);
console.log('Open in Chrome DevTools → Performance tab → Load profile');
});
}
//# sourceMappingURL=cpu-profile.js.map |