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only flush redis when running on heroku; don't delete files on start (see @46f36e9fede3984e85cb1cafa7a4fea67a56176d)

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jomo 2014-11-22 17:16:55 +01:00
parent 04066591c5
commit 1aeeb19fcf
1 changed files with 6 additions and 34 deletions
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40
modules/cache.js
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@ -2,7 +2,8 @@ var config = require("./config");
var redis = null;
var fs = require("fs");
// sets up redis connection, calls clear_cache
// sets up redis connection
// flushes redis when running on heroku (files aren't kept between pushes)
function connect_redis() {
console.log("connecting to redis...");
if (process.env.REDISCLOUD_URL) {
@ -14,7 +15,10 @@ function connect_redis() {
}
redis.on("ready", function() {
console.log("Redis connection established.");
clear_cache();
if(process.env.HEROKU) {
console.log("Running on heroku, flushing redis");
redis.flushall();
}
});
redis.on("error", function (err) {
console.error(err);
@ -24,38 +28,6 @@ function connect_redis() {
});
}
// flushes redis, deletes faces + helms
// useful for heroku, files aren't kept between pushes
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) {