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Auto-save (and auto-load) analytics data.

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This commit is contained in:
Thaddee Tyl 2014-02-25 23:04:19 +01:00
parent ccefa9b8b8
commit 2331cd3214
1 changed files with 26 additions and 12 deletions
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38
server.js
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@ -4,12 +4,34 @@ var camp = require('camp').start({
});
var https = require('https');
var http = require('http');
var fs = require('fs');
var badge = require('./badge.js');
var svg2img = require('./svg-to-img.js');
var serverStartTime = new Date((new Date()).toGMTString());
// Analytics
var analytics = {};
var analyticsAutoSaveFileName = './analytics.json';
var analyticsAutoSavePeriod = 10000;
setInterval(function analyticsAutoSave() {
fs.writeFile(analyticsAutoSaveFileName, JSON.stringify(analytics));
}, analyticsAutoSavePeriod);
// Auto-load analytics.
function analyticsAutoLoad() {
try {
analytics = JSON.parse(fs.readFileSync(analyticsAutoSaveFileName));
} catch(e) {
// In case something happens on the 36th.
analytics.vendorMonthly = new Array(36);
analytics.rawMonthly = new Array(36);
resetMonthlyAnalytics(analytics.vendorMonthly);
resetMonthlyAnalytics(analytics.rawMonthly);
}
}
var lastDay = (new Date()).getDate();
function resetMonthlyAnalytics(monthlyAnalytics) {
for (var i = 0; i < monthlyAnalytics.length; i++) {
@ -27,16 +49,8 @@ function incrMonthlyAnalytics(monthlyAnalytics) {
monthlyAnalytics[currentDay]++;
}
// In case something happens on the 36th.
var vendorMonthlyAnalytics = new Array(36);
var rawMonthlyAnalytics = new Array(36);
resetMonthlyAnalytics(vendorMonthlyAnalytics);
resetMonthlyAnalytics(rawMonthlyAnalytics);
camp.ajax.on('analytics/v1', function(json, end) {
end({ vendorMonthly: vendorMonthlyAnalytics,
rawMonthly: rawMonthlyAnalytics });
});
analyticsAutoLoad();
camp.ajax.on('analytics/v1', function(json, end) { end(analytics); });
// Cache
@ -47,7 +61,7 @@ function cache(f) {
return function getRequest(data, match, end, ask) {
// Cache management - no cache, so it won't be cached by GitHub's CDN.
ask.res.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate');
incrMonthlyAnalytics(vendorMonthlyAnalytics);
incrMonthlyAnalytics(analytics.vendorMonthly);
var cacheIndex = match[0] + '?label=' + data.label;
// Should we return the data right away?
@ -649,7 +663,7 @@ function(data, match, end, ask) {
var color = escapeFormat(match[6]);
var format = match[8];
incrMonthlyAnalytics(rawMonthlyAnalytics);
incrMonthlyAnalytics(analytics.rawMonthly);
// Cache management - the badge is constant.
var cacheDuration = (3600*24*1)|0; // 1 day.