mirror of https://github.com/calzoneman/sync.git
Add support for v8-profiler (optional dep)
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@ -85,5 +85,8 @@
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"transform-flow-strip-types",
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"transform-decorators-legacy"
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]
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},
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"optionalDependencies": {
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"v8-profiler": "^5.7.0"
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}
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}
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@ -34,7 +34,7 @@ const SOCKETFILE = Config.get("service-socket.socket");
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// Wipe the TTY
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process.stdout.write('\x1Bc');
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var commandline, eventlog, syslog;
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var commandline, eventlog, syslog, errorlog;
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var client = net.createConnection(SOCKETFILE).on('connect', () => {
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commandline = readline.createInterface({
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input: process.stdin,
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@ -79,6 +79,11 @@ var client = net.createConnection(SOCKETFILE).on('connect', () => {
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console.log(data.toString().replace(/^(.+)$/mg, 'sys: $1'));
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});
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errorlog = spawn('tail', ['-f', 'error.log']);
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errorlog.stdout.on('data', function (data) {
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console.log(data.toString().replace(/^(.+)$/mg, 'error: $1'));
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});
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}).on('data', (msg) => {
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msg = msg.toString();
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36
src/main.js
36
src/main.js
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@ -21,6 +21,8 @@ if (!Config.get('debug')) {
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});
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}
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let profileName = null;
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// TODO: this can probably just be part of servsock.js
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// servsock should also be refactored to send replies instead of
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// relying solely on tailing logs
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@ -78,6 +80,40 @@ function handleLine(line) {
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}
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} else if (line.indexOf('/reloadcert') === 0) {
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sv.reloadCertificateData();
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} else if (line.indexOf('/profile') === 0) {
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try {
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const fs = require('fs');
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const path = require('path');
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const profiler = require('v8-profiler');
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if (profileName !== null) {
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const filename = path.resolve(
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__dirname,
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'..',
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`${profileName}.cpuprofile`
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);
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const profile = profiler.stopProfiling(profileName);
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profileName = null;
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const stream = profile.export();
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stream.on('error', error => {
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LOGGER.error('Error exporting profile: %s', error);
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profile.delete();
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});
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stream.on('finish', () => {
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LOGGER.info('Exported profile to %s', filename);
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profile.delete();
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});
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stream.pipe(fs.createWriteStream(filename));
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} else {
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profileName = `prof_${Date.now()}`;
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profiler.startProfiling(profileName, true);
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LOGGER.info('Started CPU profile');
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}
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} catch (error) {
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LOGGER.error('Unable to record CPU profile: %s', error);
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}
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}
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}
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