mirror of https://github.com/knative/client.git
38 lines
1.0 KiB
Go
38 lines
1.0 KiB
Go
/*
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Copyright 2024 The Knative Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package errors
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import (
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"emperror.dev/errors"
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)
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// CauseOf will return the error that caused the returned error. This can be
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// used when multierr package is used or fmt.Errorf("%w: %w", ErrFront, cause)
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// from standard library is used, and we know the front error.
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func CauseOf(err, rootErr error) error {
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if errors.Is(err, rootErr) {
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for _, cause := range errors.GetErrors(err) {
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if errors.Is(cause, rootErr) {
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continue
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}
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return cause
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}
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return err
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}
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return err
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}
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