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repository_filter.go
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repository_filter.go
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// Copyright (c) 2017 VMware, Inc. All Rights Reserved.
//
// 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 source
import (
"strings"
"github.com/vmware/harbor/src/common/utils"
"github.com/vmware/harbor/src/common/utils/log"
"github.com/vmware/harbor/src/replication"
"github.com/vmware/harbor/src/replication/models"
"github.com/vmware/harbor/src/replication/registry"
)
// RepositoryFilter implement Filter interface to filter repository
type RepositoryFilter struct {
pattern string
convertor Convertor
}
// NewRepositoryFilter returns an instance of RepositoryFilter
func NewRepositoryFilter(pattern string, registry registry.Adaptor) *RepositoryFilter {
return &RepositoryFilter{
pattern: pattern,
convertor: NewRepositoryConvertor(registry),
}
}
// Init ...
func (r *RepositoryFilter) Init() error {
return nil
}
// GetConvertor ...
func (r *RepositoryFilter) GetConvertor() Convertor {
return r.convertor
}
// DoFilter filters repository and image(according to the repository part) and drops any other resource types
func (r *RepositoryFilter) DoFilter(items []models.FilterItem) []models.FilterItem {
candidates := []string{}
for _, item := range items {
candidates = append(candidates, item.Value)
}
log.Debugf("repository filter candidates: %v", candidates)
result := []models.FilterItem{}
for _, item := range items {
if item.Kind != replication.FilterItemKindRepository && item.Kind != replication.FilterItemKindTag {
log.Warningf("unsupported type %s for repository filter, drop", item.Kind)
continue
}
repository := item.Value
if item.Kind == replication.FilterItemKindTag {
repository = strings.SplitN(repository, ":", 2)[0]
}
if len(r.pattern) == 0 {
log.Debugf("pattern is null, add %s to the repository filter result list", item.Value)
result = append(result, item)
} else {
// trim the project
_, repository = utils.ParseRepository(repository)
matched, err := match(r.pattern, repository)
if err != nil {
log.Errorf("failed to match pattern %s to value %s: %v", r.pattern, repository, err)
break
}
if matched {
log.Debugf("pattern %s matched, add %s to the repository filter result list", r.pattern, item.Value)
result = append(result, item)
}
}
}
return result
}