lib/maintain.js

   1 var fs = require("fs");
   2 var http = require("http");
   3 var url = require("url");
   4 var path = require("path");
   5 var repoapt = require("./repo-apt.js");
   6 var repoyum = require("./repo-yum.js");
   7
   8 function maintainCache() {
   9         // TODO i should check that im already running here and exit if i am
  10         console.log("Cache maintainence routine starting...");
  11         for(var index in global.repoproxy.repo) {
  12                 //console.log("start cleanup in ", index);
  13                 //console.log("cleanup array ", global.repoproxy.repo[index]);
  14                 switch(global.repoproxy.repo[index]["type"]) {
  15                 case "apt":
  16                         console.log("Scanning '%s' as apt", index);
  17                         var walkin = path.normalize(global.repoproxy.cacheDir + "/" + index);
  18                         walkDir(walkin, function(err, list) {
  19                                 repoapt.maintain(index, global.repoproxy.repo[index], list);
  20                         })
  21                         break;
  22                 case "yum":
  23                         //console.log("Scanning '%s' as apt", index);
  24                         //repoyum.maintain(global.repoproxy.repo[index]);
  25                         console.log("Scanning '%s' as yum", index);
  26                         var walkin = path.normalize(global.repoproxy.cacheDir + "/" + index);
  27                         walkDir(walkin, function(err, list) {
  28                                 repoyum.maintain(index, global.repoproxy.repo[index], list);
  29                         })
  30                         break;
  31                         break;
  32                 }
  33         }
  34         console.log("Cache maintainence routine ended...");
  35 }
  36
  37 exports.startTimer = function() {
  38         // our once-a-day cache maintainer
  39         var cacheTimer = global.repoproxy.scancache*3600*1000;
  40         //var cacheTimer = global.repoproxy.scancache*100;
  41         maintainCache();
  42         setInterval(maintainCache, cacheTimer);
  43 }
  44
  45 // this code comes frmo http://stackoverflow.com/questions/5827612/node-js-fs-readdir-recursive-directory-search
  46 function walkDir(dir, done) {
  47         var results = [];
  48
  49         fs.readdir(dir, function(err, list) {
  50                 if (err) return done(err);
  51                 var i = 0;
  52                 (function next() {
  53                         var file = list[i++];
  54                         if (!file) return done(null, results);
  55                         file = path.normalize(dir + "/" + file);
  56                         fs.stat(file, function(err, stat) {
  57                                 if (stat && stat.isDirectory()) {
  58                                         walkDir(file, function(err, res) {
  59                                                 results = results.concat(res);
  60                                                 next();
  61                                         });
  62                                 } else {
  63                                         if(!file.match(/.*\.meta.*\.filesize/)) results.push(file);
  64                                         next();
  65                                 }
  66                         });
  67                 })();
  68         });
  69 };
  70
  71
  72
  73 exports.walkDir = walkDir;