61 lines
1.7 KiB
Go
61 lines
1.7 KiB
Go
// Copyright 2019 Drone IO, Inc.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package logs
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import (
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"context"
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"io"
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"github.com/drone/drone/core"
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)
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// NewCombined returns a new combined log store that will fallback
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// to a secondary log store when necessary. This can be useful when
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// migrating from database logs to s3, where logs for older builds
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// are still being stored in the database, and newer logs in s3.
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func NewCombined(primary, secondary core.LogStore) core.LogStore {
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return &combined{
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primary: primary,
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secondary: secondary,
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}
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}
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type combined struct {
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primary, secondary core.LogStore
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}
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func (s *combined) Find(ctx context.Context, step int64) (io.ReadCloser, error) {
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rc, err := s.primary.Find(ctx, step)
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if err == nil {
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return rc, err
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}
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return s.secondary.Find(ctx, step)
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}
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func (s *combined) Create(ctx context.Context, step int64, r io.Reader) error {
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return s.primary.Create(ctx, step, r)
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}
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func (s *combined) Update(ctx context.Context, step int64, r io.Reader) error {
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return s.primary.Update(ctx, step, r)
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}
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func (s *combined) Delete(ctx context.Context, step int64) error {
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err := s.primary.Delete(ctx, step)
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if err != nil {
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err = s.secondary.Delete(ctx, step)
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}
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return err
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}
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