[WIP] Initial commit

vendor/github.com/cockroachdb/errors/secondary_api.go

@@ -0,0 +1,42 @@
+// Copyright 2019 The Cockroach Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied. See the License for the specific language governing
+// permissions and limitations under the License.
+
+package errors
+
+import "github.com/cockroachdb/errors/secondary"
+
+// WithSecondaryError enhances the error given as first argument with
+// an annotation that carries the error given as second argument.  The
+// second error does not participate in cause analysis (Is, etc) and
+// is only revealed when printing out the error or collecting safe
+// (PII-free) details for reporting.
+//
+// If additionalErr is nil, the first error is returned as-is.
+//
+// Tip: consider using CombineErrors() below in the general case.
+//
+// Detail is shown:
+// - via `errors.GetSafeDetails()`, shows details from secondary error.
+// - when formatting with `%+v`.
+// - in Sentry reports.
+func WithSecondaryError(err error, additionalErr error) error {
+	return secondary.WithSecondaryError(err, additionalErr)
+}
+
+// CombineErrors returns err, or, if err is nil, otherErr.
+// if err is non-nil, otherErr is attached as secondary error.
+// See the documentation of `WithSecondaryError()` for details.
+func CombineErrors(err, otherErr error) error {
+	return secondary.CombineErrors(err, otherErr)
+}