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Fix PHP 8.1 "file_exists(null)" exception rendering AphrontStackTraceView
Summary: Passing null to `file_exists()` is deprecated behavior since PHP 8.1. The already existing `if ($file)` check in `AphrontStackTraceView` implies that `$file` can indeed be empty. Thus add another such check higher up in that class to avoid deprecation warnings when rendering stacktraces. ``` ERROR 8192: file_exists(): Passing null to parameter #1 ($filename) of type string is deprecated at [/var/www/html/phorge/arcanist/src/filesystem/Filesystem.php:1068]; #0 file_exists(NULL) called at [<arcanist>/src/filesystem/Filesystem.php:1068]; #1 Filesystem::pathExists(NULL) called at [<arcanist>/src/filesystem/Filesystem.php:1180]; #2 Filesystem::assertExists(NULL) called at [<arcanist>/src/filesystem/Filesystem.php:1020]; #3 Filesystem::isDescendant(NULL, string) called at [<phorge>/src/view/widget/AphrontStackTraceView.php:33]; ``` Closes T15881 Test Plan: Intentionally inject an `Array to string conversion bug` in `PhabricatorEmailPreferencesSettingsPanel` (see T15881). Then visit `/settings/panel/emailpreferences/`. See the same stacktrace before and after applying this change, but see only a single line of output in DarkConsole / Error Log after applying this patch and not anymore numerous `Passing null to parameter #1 ($filename) of type string is deprecated` errors in DarkConsole / Error Log. Reviewers: O1 Blessed Committers, speck Reviewed By: O1 Blessed Committers, speck Subscribers: speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno Maniphest Tasks: T15881 Differential Revision: https://we.phorge.it/D25728
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1 changed files with 9 additions and 7 deletions
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@ -27,13 +27,15 @@ final class AphrontStackTraceView extends AphrontView {
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foreach ($trace as $part) {
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$lib = null;
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$file = idx($part, 'file');
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$relative = $file;
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foreach ($libraries as $library) {
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$root = phutil_get_library_root($library);
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if (Filesystem::isDescendant($file, $root)) {
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$lib = $library;
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$relative = Filesystem::readablePath($file, $root);
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break;
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if ($file !== null && $file !== '') {
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$relative = $file;
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foreach ($libraries as $library) {
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$root = phutil_get_library_root($library);
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if (Filesystem::isDescendant($file, $root)) {
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$lib = $library;
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$relative = Filesystem::readablePath($file, $root);
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break;
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}
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}
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}
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