52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
// Copyright 2019 Drone.IO Inc. All rights reserved.
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// Use of this source code is governed by the Drone Non-Commercial License
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// that can be found in the LICENSE file.
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// +build !oss
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package cache
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import (
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"context"
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"fmt"
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"github.com/drone/drone/core"
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"github.com/hashicorp/golang-lru"
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)
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// content key pattern used in the cache, comprised of the
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// repository slug, commit and path.
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const contentKey = "%s/%s/%s"
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// Contents returns a new FileService that is wrapped
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// with an in-memory cache.
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func Contents(base core.FileService) core.FileService {
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// simple cache prevents the same yaml file from being
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// requested multiple times in a short period.
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cache, _ := lru.New(25)
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return &service{
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service: base,
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cache: cache,
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}
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}
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type service struct {
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cache *lru.Cache
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service core.FileService
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user *core.User
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}
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func (s *service) Find(ctx context.Context, user *core.User, repo, commit, ref, path string) (*core.File, error) {
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key := fmt.Sprintf(contentKey, repo, commit, path)
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cached, ok := s.cache.Get(key)
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if ok {
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return cached.(*core.File), nil
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}
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file, err := s.service.Find(ctx, user, repo, commit, ref, path)
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if err != nil {
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return nil, err
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}
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s.cache.Add(key, file)
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return file, nil
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}
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