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[stable16] Let SCSS cleanup only run once #17580

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Merged
rullzer merged 2 commits into from
Oct 19, 2019
Merged

[stable16] Let SCSS cleanup only run once #17580

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4011d97
Use a distributed cache for the isCachedCache
juliusknorr Oct 15, 2019
8d68e9e
Make sure the cache is only reset once at a time
juliusknorr Oct 15, 2019
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Make sure the cache is only reset once at a time 
Signed-off-by: Julius Härtl <[email protected]>
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@juliusknorr
juliusknorr authored and Backportbot committed Oct 17, 2019
commit 8d68e9e323354650c9af346755fe7e5638449363
6 changes: 5 additions & 1 deletion lib/private/Template/SCSSCacher.php
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Original file line number Diff line number Diff line change
Expand Up @@ -269,8 +269,8 @@ private function isCached(string $fileNameCSS, string $app) {
private function variablesChanged(): bool {
$injectedVariables = $this->getInjectedVariables();
if ($this->config->getAppValue('core', 'theming.variables') !== md5($injectedVariables)) {
$this->resetCache();
$this->config->setAppValue('core', 'theming.variables', md5($injectedVariables));
$this->resetCache();
return true;
}
return false;
Expand Down Expand Up @@ -364,6 +364,9 @@ private function cache(string $path, string $fileNameCSS, string $fileNameSCSS,
* We need to regenerate all files when variables change
*/
public function resetCache() {
if (!$this->lockingCache->add('resetCache', 'locked!', 120)) {
return;
}
$this->injectedVariables = null;

// do not clear locks
Expand All @@ -381,6 +384,7 @@ public function resetCache() {
}
}
$this->logger->debug('SCSSCacher: css cache cleared!');
$this->lockingCache->remove('resetCache');
}

/**
Expand Down