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bufcoreutil.go
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bufcoreutil.go
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// Copyright 2020 Buf Technologies, Inc.
//
// 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 bufcoreutil
import (
"context"
"fmt"
"github.com/bufbuild/buf/internal/buf/bufcore"
"github.com/bufbuild/buf/internal/pkg/protosource"
)
// NewInputFiles gets around Go's lack of generics.
func NewInputFiles(imageFiles []bufcore.ImageFile) []protosource.InputFile {
inputFiles := make([]protosource.InputFile, len(imageFiles))
for i, imageFile := range imageFiles {
inputFiles[i] = imageFile
}
return inputFiles
}
// FreeMessageRangeStrings gets the free MessageRange strings for the target files.
//
// Recursive.
func FreeMessageRangeStrings(
ctx context.Context,
module bufcore.Module,
image bufcore.Image,
) ([]string, error) {
fileInfos, err := module.TargetFileInfos(ctx)
if err != nil {
return nil, err
}
var s []string
for _, fileInfo := range fileInfos {
imageFile := image.GetFile(fileInfo.Path())
if imageFile == nil {
return nil, fmt.Errorf("unexpected nil image file: %q", fileInfo.Path())
}
file, err := protosource.NewFile(imageFile)
if err != nil {
return nil, err
}
for _, message := range file.Messages() {
s = freeMessageRangeStringsRec(s, message)
}
}
return s, nil
}
func freeMessageRangeStringsRec(
s []string,
message protosource.Message,
) []string {
for _, nestedMessage := range message.Messages() {
s = freeMessageRangeStringsRec(s, nestedMessage)
}
if e := protosource.FreeMessageRangeString(message); e != "" {
return append(s, e)
}
return s
}