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delete faces + helms on start (relevant: #4)

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since redis is flushed, we don't know about these files anyway
This commit is contained in:
jomo 2014-11-07 23:05:29 +01:00
parent d4cb8e9aef
commit a1eaaa3de3
1 changed files with 35 additions and 3 deletions
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38
modules/cache.js
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@ -2,7 +2,7 @@ var config = require("./config");
var redis = null;
var fs = require("fs");
// sets up redis connection, calls clear_cache
function connect_redis() {
console.log("connecting to redis...");
if (process.env.REDISCLOUD_URL) {
@ -13,8 +13,8 @@ function connect_redis() {
redis = require("redis").createClient();
}
redis.on("ready", function() {
console.log("Redis connection established. Flushing all data.");
redis.flushall();
console.log("Redis connection established.");
clear_cache();
});
redis.on("error", function (err) {
console.error(err);
@ -24,7 +24,39 @@ function connect_redis() {
});
}
// flushes redis, deletes faces + helms
function clear_cache() {
console.log("Flushing redis");
redis.flushall();
console.log("Deleting all faces + helms...");
fs.readdir(config.faces_dir, function(err, files) {
if (err) {
console.error(err);
} else {
for (var i in files) {
var file = files[i];
if (file[0] != ".") {
// delete face file
fs.unlink(config.faces_dir + file, function(err){
if (err) {
console.error(err);
}
});
// delete helm file, we assume this exists as well
fs.unlink(config.helms_dir + file, function(err){
if (err) {
console.error(err);
}
});
}
}
}
});
}
// sets the date of the face file belonging to +hash+ to now
// the helms file is ignored because we only need 1 file to read/write from
function update_file_date(hash) {
if (hash) {
var path = config.faces_dir + hash + ".png";