// Copyright 2020-2026 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 main implements a file lister for git that lists unstaged files.
//
// See the documentation for git.Lister for more details.
package main

import (
	"context"
	"strings"

	"buf.build/go/app"
	"github.com/bufbuild/buf/private/pkg/git"
)

func main() {
	app.Main(context.Background(), run)
}

func run(ctx context.Context, container app.Container) error {
	files, err := git.NewLister().ListFilesAndUnstagedFiles(
		ctx,
		container,
		git.ListFilesAndUnstagedFilesOptions{},
	)
	if err != nil {
		return err
	}
	if len(files) > 0 {
		if _, err := container.Stdout().Write([]byte(strings.Join(files, "\n") + "\n")); err != nil {
			return err
		}
	}
	return nil
}
