mirror of https://github.com/harness/drone.git
103 lines
2.3 KiB
Go
103 lines
2.3 KiB
Go
// Copyright 2023 Harness, 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 api
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"path"
|
|
)
|
|
|
|
type FileContent struct {
|
|
Path string
|
|
Content []byte
|
|
}
|
|
|
|
//nolint:gocognit
|
|
func (g *Git) MatchFiles(
|
|
ctx context.Context,
|
|
repoPath string,
|
|
rev string,
|
|
treePath string,
|
|
pattern string,
|
|
maxSize int,
|
|
) ([]FileContent, error) {
|
|
nodes, err := lsDirectory(ctx, repoPath, rev, treePath, false)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to list files in match files: %w", err)
|
|
}
|
|
|
|
catFileWriter, catFileReader, catFileStop := CatFileBatch(ctx, repoPath, nil)
|
|
defer catFileStop()
|
|
|
|
var files []FileContent
|
|
for i := range nodes {
|
|
if nodes[i].NodeType != TreeNodeTypeBlob {
|
|
continue
|
|
}
|
|
|
|
fileName := nodes[i].Name
|
|
ok, err := path.Match(pattern, fileName)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to match file name against pattern: %w", err)
|
|
}
|
|
if !ok {
|
|
continue
|
|
}
|
|
|
|
_, err = catFileWriter.Write([]byte(nodes[i].SHA.String() + "\n"))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to ask for file content from cat file batch: %w", err)
|
|
}
|
|
|
|
output, err := ReadBatchHeaderLine(catFileReader)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to read cat-file batch header: %w", err)
|
|
}
|
|
|
|
reader := io.LimitReader(catFileReader, output.Size+1) // plus eol
|
|
|
|
if output.Size > int64(maxSize) {
|
|
_, err = io.Copy(io.Discard, reader)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to discard a large file: %w", err)
|
|
}
|
|
}
|
|
|
|
data, err := io.ReadAll(reader)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to read cat-file content: %w", err)
|
|
}
|
|
|
|
if len(data) > 0 {
|
|
data = data[:len(data)-1]
|
|
}
|
|
|
|
if len(data) == 0 {
|
|
continue
|
|
}
|
|
|
|
files = append(files, FileContent{
|
|
Path: nodes[i].Path,
|
|
Content: data,
|
|
})
|
|
}
|
|
|
|
_ = catFileWriter.Close()
|
|
|
|
return files, nil
|
|
}
|