42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
// Example handling an fs error for a Bunyan-created
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// stream: we create a logger to a file that is read-only.
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var fs = require('fs');
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var path = require('path');
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var bunyan = require('../lib/bunyan');
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var FILENAME = 'handle-fs-error.log';
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var S_IWUSR = 00200; // mask for owner write permission in stat mode
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console.warn('- Log file is "%s".', FILENAME);
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if (!path.existsSync(FILENAME)) {
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console.warn('- Touch log file.');
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fs.writeFileSync(FILENAME, 'touch\n');
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}
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if (fs.statSync(FILENAME).mode & S_IWUSR) {
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console.warn('- Make log file read-only.');
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fs.chmodSync(FILENAME, 0444);
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}
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console.warn('- Create logger.');
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var log = bunyan.createLogger({
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name: 'handle-fs-error',
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streams: [
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{path: FILENAME}
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]
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});
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log.on('error', function (err) {
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console.warn('- The logger emitted an error:', err);
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});
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console.warn('- Call log.info(...).');
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log.info('info log message');
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console.warn('- Called log.info(...).');
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setTimeout(function () {
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console.warn('- Call log.warn(...).');
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log.warn('warn log message');
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console.warn('- Called log.warn(...).');
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}, 1000);
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