From d9cd468af7684955566cdb76e138272a91ac6016 Mon Sep 17 00:00:00 2001 From: zeripath Date: Sun, 21 Mar 2021 16:59:58 +0000 Subject: [PATCH] Place wrapper around comment as diff to catch panics (#15085) There are a few recurrent issues with comment as diff reporting panics that are resistant to fixing due to the fact that the panic occurs in the template render and is swallowed by the template renderer. This PR just adds some logging to force the panic to properly logged and re-propagates back up to the template renderer so we can actually detect what the issue is. Signed-off-by: Andrew Thornton art27@cantab.net --- services/gitdiff/gitdiff.go | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/services/gitdiff/gitdiff.go b/services/gitdiff/gitdiff.go index 9f038c8744..8768b960fc 100644 --- a/services/gitdiff/gitdiff.go +++ b/services/gitdiff/gitdiff.go @@ -1288,6 +1288,14 @@ func CommentAsDiff(c *models.Comment) (*Diff, error) { // CommentMustAsDiff executes AsDiff and logs the error instead of returning func CommentMustAsDiff(c *models.Comment) *Diff { + if c == nil { + return nil + } + defer func() { + if err := recover(); err != nil { + log.Error("PANIC whilst retrieving diff for comment[%d] Error: %v\nStack: %s", c.ID, err, log.Stack(2)) + } + }() diff, err := CommentAsDiff(c) if err != nil { log.Warn("CommentMustAsDiff: %v", err)