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Place wrapper around comment as diff to catch panics (#15085) (#15094) 

Backport #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
This commit is contained in:
zeripath 2021-03-21 22:41:40 +00:00 committed by GitHub
parent 61444ed8ca
commit 6feb435867
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8
services/gitdiff/gitdiff.go
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@ -1288,6 +1288,14 @@ func CommentAsDiff(c *models.Comment) (*Diff, error) {
// CommentMustAsDiff executes AsDiff and logs the error instead of returning // CommentMustAsDiff executes AsDiff and logs the error instead of returning
func CommentMustAsDiff(c *models.Comment) *Diff { 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) diff, err := CommentAsDiff(c)
if err != nil { if err != nil {
log.Warn("CommentMustAsDiff: %v", err) log.Warn("CommentMustAsDiff: %v", err)