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lint(errorlint): handle wrapped errors

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Enable errorlint and preserve wrapped error chains so runtime checks
and tests classify failures correctly. This also makes Route53
surface insert failures instead of silently dropping them.

Signed-off-by: Ville Vesilehto <ville@vesilehto.fi>
This commit is contained in:
Ville Vesilehto
2026-04-25 11:51:45 +03:00
parent a669d74088
commit 3080ec0448
53 changed files with 122 additions and 89 deletions
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7
plugin/pkg/proxy/connect.go
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@@ -134,7 +134,7 @@ func (p *Proxy) Connect(_ctx context.Context, state request.Request, opts Option
if err := pc.c.WriteMsg(state.Req); err != nil {
pc.c.Close() // not giving it back
if err == io.EOF && cached {
if errors.Is(err, io.EOF) && cached {
return nil, ErrCachedClosed
}
return nil, err
@@ -158,7 +158,7 @@ func (p *Proxy) Connect(_ctx context.Context, state request.Request, opts Option
}
pc.c.Close() // not giving it back
if err == io.EOF && cached {
if errors.Is(err, io.EOF) && cached {
return nil, ErrCachedClosed
}
// recovery the origin Id after upstream.
@@ -193,7 +193,8 @@ const cumulativeAvgWeight = 4
func shouldTruncateResponse(err error) bool {
// This is to handle a scenario in which upstream sets the TC bit, but doesn't truncate the response
// and we get ErrBuf instead of overflow.
if _, isDNSErr := err.(*dns.Error); isDNSErr && errors.Is(err, dns.ErrBuf) {
var dnsErr *dns.Error
if errors.As(err, &dnsErr) && errors.Is(err, dns.ErrBuf) {
return true
} else if strings.Contains(err.Error(), "overflow") {
return true