77 lines
2.7 KiB
JavaScript
77 lines
2.7 KiB
JavaScript
'use strict';
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exports = module.exports = {
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sendFailureLogs: sendFailureLogs
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};
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var assert = require('assert'),
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mailer = require('./mailer.js'),
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safe = require('safetydance'),
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path = require('path'),
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util = require('util');
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var COLLECT_LOGS_CMD = path.join(__dirname, 'scripts/collectlogs.sh');
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var CRASH_LOG_TIMESTAMP_OFFSET = 1000 * 60 * 60; // 60 min
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var CRASH_LOG_TIMESTAMP_FILE = '/tmp/crashlog.timestamp';
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var CRASH_LOG_STASH_FILE = '/tmp/crashlog';
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var CRASH_LOG_FILE_LIMIT = 2 * 1024 * 1024; // 2mb
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function collectLogs(unitName, callback) {
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assert.strictEqual(typeof unitName, 'string');
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assert.strictEqual(typeof callback, 'function');
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var logs = safe.child_process.execSync('sudo ' + COLLECT_LOGS_CMD + ' ' + unitName, { encoding: 'utf8' });
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logs = logs + '\n\n=====================================\n\n';
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callback(null, logs);
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}
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function stashLogs(logs) {
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var stat = safe.fs.statSync(CRASH_LOG_STASH_FILE);
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if (stat && (stat.size > CRASH_LOG_FILE_LIMIT)) {
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console.error('Dropping logs since crash file has become too big');
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return;
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}
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// append here
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safe.fs.writeFileSync(CRASH_LOG_STASH_FILE, logs, { flag: 'a' });
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}
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function sendFailureLogs(processName, options) {
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assert.strictEqual(typeof processName, 'string');
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assert.strictEqual(typeof options, 'object');
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collectLogs(options.unit || processName, function (error, newLogs) {
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if (error) {
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console.error('Failed to collect logs.', error);
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newLogs = util.format('Failed to collect logs.', error);
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}
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console.log('Sending failure logs for', processName);
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var timestamp = safe.fs.readFileSync(CRASH_LOG_TIMESTAMP_FILE, 'utf8');
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// check if we already sent a mail in the last CRASH_LOG_TIME_OFFSET window
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if (timestamp && (parseInt(timestamp) + CRASH_LOG_TIMESTAMP_OFFSET) > Date.now()) {
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console.log('Crash log already sent within window. Stashing logs.');
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return stashLogs(newLogs);
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}
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var stashedLogs = safe.fs.readFileSync(CRASH_LOG_STASH_FILE, 'utf8');
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var compiledLogs = stashedLogs ? (stashedLogs + newLogs) : newLogs;
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var mailSubject = processName + (stashedLogs ? ' and others' : '');
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mailer.unexpectedExit(mailSubject, compiledLogs, function (error) {
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if (error) {
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console.log('Error sending crashlog. Stashing logs.');
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return stashLogs(newLogs);
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}
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// write the new timestamp file and delete stash file
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safe.fs.writeFileSync(CRASH_LOG_TIMESTAMP_FILE, String(Date.now()));
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safe.fs.unlinkSync(CRASH_LOG_STASH_FILE);
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});
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});
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}
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