mirror of
https://github.com/harness/drone.git
synced 2025-05-05 04:11:53 +08:00
102 lines
2.4 KiB
Go
102 lines
2.4 KiB
Go
// Copyright 2023 Harness, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package adapter
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import (
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"context"
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"fmt"
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"io"
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"path"
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"github.com/harness/gitness/git/types"
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gitea "code.gitea.io/gitea/modules/git"
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)
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//nolint:gocognit
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func (a Adapter) MatchFiles(
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ctx context.Context,
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repoPath string,
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rev string,
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treePath string,
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pattern string,
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maxSize int,
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) ([]types.FileContent, error) {
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nodes, err := lsDirectory(ctx, repoPath, rev, treePath)
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if err != nil {
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return nil, fmt.Errorf("failed to list files in match files: %w", err)
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}
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catFileWriter, catFileReader, catFileStop := gitea.CatFileBatch(ctx, repoPath)
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defer catFileStop()
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var files []types.FileContent
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for i := range nodes {
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if nodes[i].NodeType != types.TreeNodeTypeBlob {
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continue
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}
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fileName := nodes[i].Name
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ok, err := path.Match(pattern, fileName)
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if err != nil {
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return nil, fmt.Errorf("failed to match file name against pattern: %w", err)
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}
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if !ok {
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continue
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}
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_, err = catFileWriter.Write([]byte(nodes[i].Sha + "\n"))
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if err != nil {
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return nil, fmt.Errorf("failed to ask for file content from cat file batch: %w", err)
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}
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_, _, size, err := gitea.ReadBatchLine(catFileReader)
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if err != nil {
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return nil, fmt.Errorf("failed to read cat-file batch header: %w", err)
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}
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reader := io.LimitReader(catFileReader, size+1) // plus eol
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if size > int64(maxSize) {
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_, err = io.Copy(io.Discard, reader)
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if err != nil {
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return nil, fmt.Errorf("failed to discard a large file: %w", err)
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}
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}
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data, err := io.ReadAll(reader)
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if err != nil {
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return nil, fmt.Errorf("failed to read cat-file content: %w", err)
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}
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if len(data) > 0 {
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data = data[:len(data)-1]
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}
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if len(data) == 0 {
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continue
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}
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files = append(files, types.FileContent{
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Path: nodes[i].Path,
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Content: data,
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})
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}
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_ = catFileWriter.Close()
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return files, nil
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}
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