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Commit 46a76d9

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committed
feature: Automatically clear cache when -T changed
1 parent cdf819e commit 46a76d9

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3 files changed

+29
-7
lines changed

3 files changed

+29
-7
lines changed

‎lib/cache.js‎

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -9,6 +9,12 @@ cache.init = function() {
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file.mkdir(file.cacheDir());
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};
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cache.deleteAll = function () {
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cache.list().forEach(value => {
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cache.del(value.name);
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})
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};
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cache.get = function(k) {
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const fullpath = file.cacheFile(k);
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if (!file.exist(fullpath)) return null;

‎lib/helper.js‎

Lines changed: 6 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -52,11 +52,12 @@ const LANGS = [
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const h = {};
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h.KEYS = {
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user: '../user',
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stat: '../stat',
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plugins: '../../plugins',
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problems: 'problems',
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problem: p => p.fid + '.' + p.slug + '.' + p.category
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user: '../user',
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stat: '../stat',
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plugins: '../../plugins',
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problems: 'problems',
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translation: 'translationConfig',
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problem: p => p.fid + '.' + p.slug + '.' + p.category
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};
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h.prettyState = function(state) {

‎lib/plugins/cache.js‎

Lines changed: 17 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -9,7 +9,21 @@ var session = require('../session');
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const plugin = new Plugin(50, 'cache', '', 'Plugin to provide local cache.');
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plugin.getProblems = function(needTranslation, cb) {
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// this function will clear all caches if needTranslation is different than stored
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// it will also store the new needTranslation into cache automatically
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function clearCacheIfTchanged(needTranslation) {
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const translationConfig = cache.get(h.KEYS.translation);
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if (!translationConfig || translationConfig['useEndpointTranslation'] != needTranslation) {
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// cache doesn't have the key => old cache version, need to update
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// or cache does have the key but it contains a different value
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cache.deleteAll();
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cache.set(h.KEYS.translation, { useEndpointTranslation: needTranslation });
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log.debug('cache cleared: -T option changed');
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}
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}
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plugin.getProblems = function (needTranslation, cb) {
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clearCacheIfTchanged(needTranslation);
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const problems = cache.get(h.KEYS.problems);
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if (problems) {
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log.debug('cache hit: problems.json');
@@ -24,7 +38,8 @@ plugin.getProblems = function(needTranslation, cb) {
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});
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};
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plugin.getProblem = function(problem, needTranslation, cb) {
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plugin.getProblem = function (problem, needTranslation, cb) {
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clearCacheIfTchanged(needTranslation);
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const k = h.KEYS.problem(problem);
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const _problem = cache.get(k);
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if (_problem) {

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