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// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package pipeline

import (
	"bytes"
	"context"
	"fmt"
	"io"
	"strings"
	"sync"

	"code.gitea.io/gitea/modules/git"
)

// NameRevStdin runs name-rev --stdin
func NameRevStdin(ctx context.Context, shasToNameReader *io.PipeReader, nameRevStdinWriter *io.PipeWriter, wg *sync.WaitGroup, tmpBasePath string) {
	defer wg.Done()
	defer shasToNameReader.Close()
	defer nameRevStdinWriter.Close()

	stderr := new(bytes.Buffer)
	var errbuf strings.Builder
	if err := git.NewCommand(ctx, "name-rev", "--stdin", "--name-only", "--always").Run(&git.RunOpts{
		Dir:    tmpBasePath,
		Stdout: nameRevStdinWriter,
		Stdin:  shasToNameReader,
		Stderr: stderr,
	}); err != nil {
		_ = shasToNameReader.CloseWithError(fmt.Errorf("git name-rev [%s]: %w - %s", tmpBasePath, err, errbuf.String()))
	}
}