forked from containers/build
/
annotations.go
85 lines (75 loc) · 2.15 KB
/
annotations.go
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// Copyright 2015 The appc 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 lib
import (
"github.com/appc/acbuild/util"
"github.com/appc/spec/schema"
"github.com/appc/spec/schema/types"
)
func removeAnnotation(name types.ACIdentifier) func(*schema.ImageManifest) error {
return func(s *schema.ImageManifest) error {
foundOne := false
for i := len(s.Annotations) - 1; i >= 0; i-- {
if s.Annotations[i].Name == name {
foundOne = true
s.Annotations = append(
s.Annotations[:i],
s.Annotations[i+1:]...)
}
}
if !foundOne {
return ErrNotFound
}
return nil
}
}
// AddAnnotation will add an annotation with the given name and value to the
// untarred ACI stored at a.CurrentACIPath. If the annotation already exists
// its value will be updated to the new value.
func (a *ACBuild) AddAnnotation(name, value string) (err error) {
if err = a.lock(); err != nil {
return err
}
defer func() {
if err1 := a.unlock(); err == nil {
err = err1
}
}()
acid, err := types.NewACIdentifier(name)
if err != nil {
return err
}
fn := func(s *schema.ImageManifest) error {
s.Annotations.Set(*acid, value)
return nil
}
return util.ModifyManifest(fn, a.CurrentACIPath)
}
// RemoveAnnotation will remove the annotation with the given name from the
// untarred ACI stored at a.CurrentACIPath
func (a *ACBuild) RemoveAnnotation(name string) (err error) {
if err = a.lock(); err != nil {
return err
}
defer func() {
if err1 := a.unlock(); err == nil {
err = err1
}
}()
acid, err := types.NewACIdentifier(name)
if err != nil {
return err
}
return util.ModifyManifest(removeAnnotation(*acid), a.CurrentACIPath)
}