GitJournal/lib/repository.dart

/*
 * SPDX-FileCopyrightText: 2019-2021 Vishesh Handa <me@vhanda.in>
 *
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

import 'dart:async';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';

import 'package:collection/collection.dart';
import 'package:dart_git/config.dart';
import 'package:dart_git/dart_git.dart';
import 'package:dart_git/exceptions.dart';
import 'package:dart_git/plumbing/git_hash.dart';
import 'package:git_bindings/git_bindings.dart';
import 'package:path/path.dart' as p;
import 'package:sentry_flutter/sentry_flutter.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:synchronized/synchronized.dart';
import 'package:time/time.dart';
import 'package:universal_io/io.dart';

import 'package:gitjournal/analytics/analytics.dart';
import 'package:gitjournal/core/file/file_storage.dart';
import 'package:gitjournal/core/file/file_storage_cache.dart';
import 'package:gitjournal/core/folder/notes_folder_config.dart';
import 'package:gitjournal/core/folder/notes_folder_fs.dart';
import 'package:gitjournal/core/git_repo.dart';
import 'package:gitjournal/core/note.dart';
import 'package:gitjournal/core/note_storage.dart';
import 'package:gitjournal/core/notes_cache.dart';
import 'package:gitjournal/error_reporting.dart';
import 'package:gitjournal/logger/logger.dart';
import 'package:gitjournal/settings/git_config.dart';
import 'package:gitjournal/settings/settings.dart';
import 'package:gitjournal/settings/settings_migrations.dart';
import 'package:gitjournal/settings/storage_config.dart';
import 'package:gitjournal/sync_attempt.dart';

class GitJournalRepo with ChangeNotifier {
  final StorageConfig storageConfig;
  final GitConfig gitConfig;
  final NotesFolderConfig folderConfig;
  final Settings settings;

  final FileStorage fileStorage;
  final FileStorageCache fileStorageCache;

  final _gitOpLock = Lock();
  final _loadLock = Lock();
  final _networkLock = Lock();
  final _cacheBuildingLock = Lock();

  /// The private directory where the 'git repo' is stored.
  final String gitBaseDirectory;
  final String cacheDir;
  final String id;

  String? _currentBranch;

  late GitNoteRepository _gitRepo;
  late NotesCache _notesCache;

  String repoPath;

  /// Sorted in newest -> oldest
  var syncAttempts = <SyncAttempt>[];
  SyncStatus get syncStatus =>
      syncAttempts.isNotEmpty ? syncAttempts.first.status : SyncStatus.Unknown;

  int numChanges = 0;

  bool get hasJournalEntries {
    return notesFolder.hasNotes;
  }

  late NotesFolderFS notesFolder;

  bool remoteGitRepoConfigured = false;
  late bool fileStorageCacheReady;

  static Future<GitJournalRepo> load(
      {required String gitBaseDir,
      required String cacheDir,
      required SharedPreferences pref,
      required String id,
      required}) async {
    await migrateSettings(id, pref, gitBaseDir);

    var storageConfig = StorageConfig(id, pref);
    storageConfig.load();

    var folderConfig = NotesFolderConfig(id, pref);
    folderConfig.load();

    var gitConfig = GitConfig(id, pref);
    gitConfig.load();

    var settings = Settings(id, pref);
    settings.load();

    Sentry.configureScope((scope) {
      scope.setContexts('StorageConfig', storageConfig.toLoggableMap());
      scope.setContexts('FolderConfig', folderConfig.toLoggableMap());
      scope.setContexts('GitConfig', gitConfig.toLoggableMap());
      scope.setContexts('Settings', settings.toLoggableMap());
    });

    logEvent(
      Event.StorageConfig,
      parameters: storageConfig.toLoggableMap()..addAll({'id': id}),
    );
    logEvent(
      Event.FolderConfig,
      parameters: folderConfig.toLoggableMap()..addAll({'id': id}),
    );
    logEvent(
      Event.GitConfig,
      parameters: gitConfig.toLoggableMap()..addAll({'id': id}),
    );
    logEvent(
      Event.Settings,
      parameters: settings.toLoggableMap()..addAll({'id': id}),
    );

    var repoPath = await storageConfig.buildRepoPath(gitBaseDir);
    Log.i("Loading Repo at path $repoPath");

    var repoDir = Directory(repoPath);

    if (!repoDir.existsSync()) {
      Log.i("Calling GitInit for ${storageConfig.folderName} at: $repoPath");
      await GitRepository.init(repoPath, defaultBranch: 'main');

      storageConfig.save();
    }

    var valid = await GitRepository.isValidRepo(repoPath);
    if (!valid) {
      // What happened that the directory still exists but the .git folder
      // has disappeared?
      // FIXME: What if the '.config' file is not accessible?
      // -> https://sentry.io/share/issue/bafc5c417bdb4fd196cead1d28432f12/
    }

    var repo = await GitRepository.load(repoPath).getOrThrow();
    var remoteConfigured = repo.config.remotes.isNotEmpty;

    await Directory(cacheDir).create(recursive: true);

    var fileStorageCache = FileStorageCache(cacheDir);
    var fileStorage = await fileStorageCache.load(repo);

    var headR = await repo.headHash();
    var head = headR.isFailure ? GitHash.zero() : headR.getOrThrow();

    return GitJournalRepo._internal(
      repoPath: repoPath,
      gitBaseDirectory: gitBaseDir,
      cacheDir: cacheDir,
      remoteGitRepoConfigured: remoteConfigured,
      storageConfig: storageConfig,
      settings: settings,
      folderConfig: folderConfig,
      gitConfig: gitConfig,
      id: id,
      fileStorage: fileStorage,
      fileStorageCache: fileStorageCache,
      currentBranch: await repo.currentBranch().getOrThrow(),
      headHash: head,
    );
  }

  GitJournalRepo._internal({
    required this.id,
    required this.repoPath,
    required this.gitBaseDirectory,
    required this.cacheDir,
    required this.storageConfig,
    required this.folderConfig,
    required this.settings,
    required this.gitConfig,
    required this.remoteGitRepoConfigured,
    required this.fileStorage,
    required this.fileStorageCache,
    required String? currentBranch,
    required GitHash headHash,
  }) {
    _gitRepo = GitNoteRepository(gitRepoPath: repoPath, config: gitConfig);
    notesFolder = NotesFolderFS.root(folderConfig, fileStorage);
    _currentBranch = currentBranch;

    Log.i("Branch $_currentBranch");

    // Makes it easier to filter the analytics
    Analytics.instance?.setUserProperty(
      name: 'onboarded',
      value: remoteGitRepoConfigured.toString(),
    );

    Log.i("Cache Directory: $cacheDir");

    _notesCache = NotesCache(
      folderPath: cacheDir,
      repoPath: _gitRepo.gitRepoPath,
      fileStorage: fileStorage,
    );

    fileStorageCacheReady = headHash == fileStorageCache.lastProcessedHead;

    _loadFromCache();
    _syncNotes();
  }

  Future<void> _loadFromCache() async {
    var startTime = DateTime.now();
    await _notesCache.load(notesFolder);
    var endTime = DateTime.now().difference(startTime);

    Log.i("Finished loading the notes cache - $endTime");

    startTime = DateTime.now();
    await _loadNotes();
    endTime = DateTime.now().difference(startTime);

    Log.i("Finished loading all the notes - $endTime");
  }

  Future<void> reloadNotes() => _loadNotes();

  Future<void> _loadNotes() async {
    await _fillFileStorageCache();

    // FIXME: We should report the notes that failed to load
    return _loadLock.synchronized(() async {
      await notesFolder.loadRecursively();
      await _notesCache.buildCache(notesFolder);

      var changes = await _gitRepo.numChanges();
      numChanges = changes ?? 0;
      notifyListeners();
    });
  }

  Future<void> _fillFileStorageCache() {
    return _cacheBuildingLock.synchronized(__fillFileStorageCache);
  }

  Future<void> __fillFileStorageCache() async {
    var gitRepo = await GitRepository.load(repoPath).getOrThrow();
    var headR = await gitRepo.headHash();
    if (headR.isFailure) {
      if (headR.error is GitRefNotFound) {
        // No commits
        fileStorageCacheReady = true;
        notifyListeners();
        return;
      }
      Log.e("Failed to fetch HEAD", result: headR);
      return;
    }
    var head = headR.getOrThrow();
    Log.d("Got HEAD: $head");

    var startTime = DateTime.now();
    var result = await gitRepo.visitTree(
      fromCommitHash: head,
      visitor: fileStorage.visitor,
    );
    var endTime = DateTime.now().difference(startTime);

    Log.i("Built Git Time Cache - $endTime");
    if (result.isFailure) {
      Log.e("Failed to build FileStorage cache", result: result);
      logException(result.exception!, result.stackTrace!);
    }

    var r = await fileStorageCache.save(fileStorage);
    if (r.isFailure) {
      Log.e("Failed to save FileStorageCache", result: r);
      logException(r.exception!, r.stackTrace!);
    }

    // Notify that the cache is ready
    Log.i("Done building the FileStorageCache");
    fileStorageCacheReady = fileStorageCache.lastProcessedHead == head;
    notifyListeners();
  }

  Future<void> syncNotes({bool doNotThrow = false}) async {
    if (!remoteGitRepoConfigured) {
      Log.d("Not syncing because RemoteRepo not configured");
      return;
    }

    logEvent(Event.RepoSynced);
    var attempt = SyncAttempt();
    attempt.add(SyncStatus.Pulling);
    syncAttempts.insert(0, attempt);
    notifyListeners();

    Future? noteLoadingFuture;
    try {
      await _networkLock.synchronized(() async {
        await _gitRepo.fetch().throwOnError();
      });

      attempt.add(SyncStatus.Merging);

      await _gitOpLock.synchronized(() async {
        var r = await _gitRepo.merge();
        if (r.isFailure) {
          var ex = r.error!;
          // When there is nothing to merge into
          if (ex is! GitRefNotFound) {
            throw ex;
            // FIXME: Do not throw this exception, try to solve it somehow!!
          }
        }
      });

      attempt.add(SyncStatus.Pushing);
      notifyListeners();

      noteLoadingFuture = _loadNotes();

      await _networkLock.synchronized(() async {
        await _gitRepo.push().throwOnError();
      });

      Log.d("Synced!");
      attempt.add(SyncStatus.Done);
      numChanges = 0;
      notifyListeners();
    } catch (e, stacktrace) {
      Log.e("Failed to Sync", ex: e, stacktrace: stacktrace);

      var ex = e;
      if (ex is! Exception) {
        ex = Exception(e.toString());
      }
      attempt.add(SyncStatus.Error, ex);

      notifyListeners();
      if (e is Exception && shouldLogGitException(e)) {
        await logException(e, stacktrace);
      }
      if (!doNotThrow) rethrow;
    }

    await noteLoadingFuture;
  }

  Future<void> _syncNotes() async {
    var freq = settings.remoteSyncFrequency;
    if (freq != RemoteSyncFrequency.Automatic) {
      return;
    }
    return syncNotes(doNotThrow: true);
  }

  Future<void> createFolder(NotesFolderFS parent, String folderName) async {
    logEvent(Event.FolderAdded);

    await _gitOpLock.synchronized(() async {
      var newFolderPath = p.join(parent.folderPath, folderName);
      var newFolder =
          NotesFolderFS(parent, newFolderPath, folderConfig, fileStorage);
      newFolder.create();

      Log.d("Created New Folder: " + newFolderPath);
      parent.addFolder(newFolder);

      var result = await _gitRepo.addFolder(newFolder);
      if (result.isFailure) {
        Log.e("createFolder", result: result);
        return;
      }

      numChanges += 1;
      notifyListeners();
    });

    unawaited(_syncNotes());
  }

  Future<void> removeFolder(NotesFolderFS folder) async {
    logEvent(Event.FolderDeleted);

    await _gitOpLock.synchronized(() async {
      Log.d("Got removeFolder lock");
      Log.d("Removing Folder: " + folder.folderPath);

      folder.parentFS!.removeFolder(folder);
      var result = await _gitRepo.removeFolder(folder);
      if (result.isFailure) {
        Log.e("removeFolder", result: result);
        return;
      }

      numChanges += 1;
      notifyListeners();
    });

    unawaited(_syncNotes());
  }

  Future<void> renameFolder(NotesFolderFS folder, String newFolderName) async {
    assert(!newFolderName.contains(p.separator));

    logEvent(Event.FolderRenamed);

    await _gitOpLock.synchronized(() async {
      var oldFolderPath = folder.folderPath;
      Log.d("Renaming Folder from $oldFolderPath -> $newFolderName");
      folder.rename(newFolderName);

      var result = await _gitRepo.renameFolder(
        oldFolderPath,
        folder.folderPath,
      );
      if (result.isFailure) {
        Log.e("renameFolder", result: result);
        return;
      }

      numChanges += 1;
      notifyListeners();
    });

    unawaited(_syncNotes());
  }

  Future<void> renameNote(Note note, String newFileName) async {
    assert(!newFileName.contains(p.separator));

    logEvent(Event.NoteRenamed);

    var oldPath = note.filePath;
    note.parent.renameNote(note, newFileName);

    await _gitOpLock.synchronized(() async {
      var result = await _gitRepo.renameNote(oldPath, note.filePath);
      if (result.isFailure) {
        Log.e("renameNote", result: result);
        return;
      }

      numChanges += 1;
      notifyListeners();
    });

    unawaited(_syncNotes());
  }

  // void renameFile(String oldPath, String newFileName) async {
  //   assert(!newFileName.contains(p.separator));

  //   logEvent(Event.NoteRenamed);

  //   return _opLock.synchronized(() async {
  //     var newPath = p.join(p.dirname(oldPath), newFileName);
  //     await File(p.join(repoPath, oldPath)).rename(p.join(repoPath, newPath));
  //     notifyListeners();

  //     _gitRepo.renameFile(oldPath, newPath).then((Result<void> _) {
  //       _syncNotes();
  //       numChanges += 1;
  //       notifyListeners();
  //     });
  //   });
  // }

  Future<void> moveNote(Note note, NotesFolderFS destFolder) =>
      moveNotes([note], destFolder);

  Future<void> moveNotes(List<Note> notes, NotesFolderFS destFolder) async {
    notes = notes
        .where((n) => n.parent.folderPath != destFolder.folderPath)
        .toList();

    if (notes.isEmpty) {
      return;
    }

    logEvent(Event.NoteMoved);
    await _gitOpLock.synchronized(() async {
      Log.d("Got moveNote lock");

      var oldPaths = <String>[];
      var newPaths = <String>[];
      for (var note in notes) {
        oldPaths.add(note.filePath);
        NotesFolderFS.moveNote(note, destFolder);
        newPaths.add(note.filePath);
      }

      var result =
          await _gitRepo.moveNotes(oldPaths, newPaths, destFolder.folderPath);
      if (result.isFailure) {
        Log.e("moveNotes", result: result);
        return;
      }

      numChanges += 1;
      notifyListeners();
    });

    unawaited(_syncNotes());
  }

  Future<Result<void>> saveNoteToDisk(Note note) async {
    var noteStorage = NoteStorage();
    var r = await noteStorage.save(note);
    if (r.isFailure) {
      return fail(r);
    }

    return Result(null);
  }

  Future<void> addNote(Note note) async {
    logEvent(Event.NoteAdded);

    note.updateModified();

    var noteStorage = NoteStorage();
    var r = await noteStorage.save(note);
    if (r.isFailure) {
      Log.e("Note saving failed", ex: r.error, stacktrace: r.stackTrace);
      // FIXME: Shouldn't we signal the error?
    }

    note.parent.add(note);

    await _gitOpLock.synchronized(() async {
      Log.d("Got addNote lock");

      var result = await _gitRepo.addNote(note);
      if (result.isFailure) {
        Log.e("addNote", result: result);
        return;
      }

      numChanges += 1;
      notifyListeners();
    });

    unawaited(_syncNotes());
  }

  void removeNote(Note note) => removeNotes([note]);

  Future<void> removeNotes(List<Note> notes) async {
    logEvent(Event.NoteDeleted);

    await _gitOpLock.synchronized(() async {
      Log.d("Got removeNote lock");

      // FIXME: What if the Note hasn't yet been saved?
      for (var note in notes) {
        note.parent.remove(note);
      }
      var result = await _gitRepo.removeNotes(notes);
      if (result.isFailure) {
        Log.e("removeNotes", result: result);
        return;
      }

      numChanges += 1;
      notifyListeners();

      // FIXME: Is there a way of figuring this amount dynamically?
      // The '4 seconds' is taken from snack_bar.dart -> _kSnackBarDisplayDuration
      // We wait an aritfical amount of time, so that the user has a chance to undo
      // their delete operation, and that commit is not synced with the server, till then.
      await Future.delayed(4.seconds);
    });

    unawaited(_syncNotes());
  }

  Future<void> undoRemoveNote(Note note) async {
    logEvent(Event.NoteUndoDeleted);

    await _gitOpLock.synchronized(() async {
      Log.d("Got undoRemoveNote lock");

      note.parent.add(note);
      var result = await _gitRepo.resetLastCommit();
      if (result.isFailure) {
        Log.e("undoRemoveNote", result: result);
        return;
      }

      numChanges -= 1;
      notifyListeners();
    });

    unawaited(_syncNotes());
  }

  Future<void> updateNote(Note note) async {
    logEvent(Event.NoteUpdated);

    note.updateModified();

    var noteStorage = NoteStorage();
    var r = await noteStorage.save(note);
    if (r.isFailure) {
      Log.e("Note saving failed", ex: r.error, stacktrace: r.stackTrace);
      // FIXME: Shouldn't we signal the error?
    }

    await _gitOpLock.synchronized(() async {
      Log.d("Got updateNote lock");

      var result = await _gitRepo.updateNote(note);
      if (result.isFailure) {
        Log.e("updateNote", result: result);
        return;
      }

      numChanges += 1;
      notifyListeners();
    });

    unawaited(_syncNotes());
  }

  Future<void> completeGitHostSetup(
      String repoFolderName, String remoteName) async {
    repoPath = p.join(gitBaseDirectory, repoFolderName);
    Log.i("repoPath: $repoPath");

    _gitRepo = GitNoteRepository(gitRepoPath: repoPath, config: gitConfig);

    await _addFileInRepo(repo: this, config: gitConfig);

    _notesCache.clear();
    fileStorageCache.clear();

    remoteGitRepoConfigured = true;

    notesFolder.reset(fileStorage);

    storageConfig.folderName = repoFolderName;
    storageConfig.save();

    await _persistConfig();
    _loadNotes();
    _syncNotes();

    notifyListeners();
  }

  Future _persistConfig() async {
    await storageConfig.save();
    await folderConfig.save();
    await gitConfig.save();
    await settings.save();
  }

  Future<void> moveRepoToPath() async {
    var newRepoPath = await storageConfig.buildRepoPath(gitBaseDirectory);

    if (newRepoPath != repoPath) {
      Log.i("Old Path: $repoPath");
      Log.i("New Path: $newRepoPath");

      await Directory(newRepoPath).create(recursive: true);
      await _copyDirectory(repoPath, newRepoPath);
      await Directory(repoPath).delete(recursive: true);

      repoPath = newRepoPath;
      _gitRepo = GitNoteRepository(gitRepoPath: repoPath, config: gitConfig);

      _notesCache.clear();

      var gitRepo = await GitRepository.load(repoPath).getOrThrow();
      var newFileStorage = FileStorage(
        gitRepo: gitRepo,
        blobCTimeBuilder: fileStorage.blobCTimeBuilder,
        fileMTimeBuilder: fileStorage.fileMTimeBuilder,
      );
      notesFolder.reset(newFileStorage);

      notifyListeners();

      _loadNotes();
    }
  }

  Future<void> discardChanges(Note note) async {
    // FIXME: Add the checkout method to GJRepo
    var gitRepo = await GitRepository.load(repoPath).getOrThrow();
    await gitRepo.checkout(note.filePath).throwOnError();

    // FIXME: Instead of this just reload that specific file
    // FIXME: I don't think this will work!
    await reloadNotes();
  }

  Future<List<GitRemoteConfig>> remoteConfigs() async {
    var repo = await GitRepository.load(repoPath).getOrThrow();
    return repo.config.remotes;
  }

  Future<List<String>> branches() async {
    var repo = await GitRepository.load(repoPath).getOrThrow();
    var branches = Set<String>.from(await repo.branches().getOrThrow());
    if (repo.config.remotes.isNotEmpty) {
      var remoteName = repo.config.remotes.first.name;
      var remoteBranches = await repo.remoteBranches(remoteName).getOrThrow();
      branches.addAll(remoteBranches.map((e) {
        return e.name.branchName()!;
      }));
    }
    return branches.toList()..sort();
  }

  String? get currentBranch => _currentBranch;

  Future<String> checkoutBranch(String branchName) async {
    Log.i("Changing branch to $branchName");
    var repo = await GitRepository.load(repoPath).getOrThrow();

    try {
      var created = await createBranchIfRequired(repo, branchName);
      if (created.isEmpty) {
        return "";
      }
    } catch (ex, st) {
      Log.e("createBranch", ex: ex, stacktrace: st);
    }

    try {
      await repo.checkoutBranch(branchName).getOrThrow();
      _currentBranch = branchName;
      Log.i("Done checking out $branchName");

      await _notesCache.clear();
      notesFolder.reset(fileStorage);
      notifyListeners();

      _loadNotes();
    } catch (e, st) {
      Log.e("Checkout Branch Failed", ex: e, stacktrace: st);
    }
    return branchName;
  }

  // FIXME: Why does this need to return a string?
  /// throws exceptions
  Future<String> createBranchIfRequired(GitRepository repo, String name) async {
    var localBranches = await repo.branches().getOrThrow();
    if (localBranches.contains(name)) {
      return name;
    }

    if (repo.config.remotes.isEmpty) {
      return "";
    }
    var remoteConfig = repo.config.remotes.first;
    var remoteBranches =
        await repo.remoteBranches(remoteConfig.name).getOrThrow();
    var remoteBranchRef = remoteBranches.firstWhereOrNull(
      (ref) => ref.name.branchName() == name,
    );
    if (remoteBranchRef == null) {
      return "";
    }

    await repo.createBranch(name, hash: remoteBranchRef.hash).throwOnError();
    await repo.setBranchUpstreamTo(name, remoteConfig, name).throwOnError();

    Log.i("Created branch $name");
    return name;
  }

  Future<void> delete() async {
    await Directory(repoPath).delete(recursive: true);
    await Directory(cacheDir).delete(recursive: true);
  }

  /// reset --hard the current branch to its remote branch
  Future<Result<void>> resetHard() {
    return catchAll(() async {
      var repo = await GitRepository.load(_gitRepo.gitRepoPath).getOrThrow();
      var branchName = await repo.currentBranch().getOrThrow();
      var branchConfig = repo.config.branch(branchName);
      if (branchConfig == null) {
        throw Exception("Branch config for '$branchName' not found");
      }

      var remoteName = branchConfig.remote;
      if (remoteName == null) {
        throw Exception("Branch config for '$branchName' misdsing remote");
      }
      var remoteBranch =
          await repo.remoteBranch(remoteName, branchName).getOrThrow();
      await repo.resetHard(remoteBranch.hash!);

      numChanges = 0;
      notifyListeners();

      _loadNotes();

      return Result(null);
    });
  }

  Future<Result<bool>> canResetHard() {
    return catchAll(() async {
      var repo = await GitRepository.load(_gitRepo.gitRepoPath).getOrThrow();
      var branchName = await repo.currentBranch().getOrThrow();
      var branchConfig = repo.config.branch(branchName);
      if (branchConfig == null) {
        throw Exception("Branch config for '$branchName' not found");
      }

      var remoteName = branchConfig.remote;
      if (remoteName == null) {
        throw Exception("Branch config for '$branchName' misdsing remote");
      }
      var remoteBranch =
          await repo.remoteBranch(remoteName, branchName).getOrThrow();
      var headHash = await repo.headHash().getOrThrow();
      return Result(remoteBranch.hash != headHash);
    });
  }
}

Future<void> _copyDirectory(String source, String destination) async {
  await for (var entity in Directory(source).list(recursive: false)) {
    if (entity is Directory) {
      var newDirectory = Directory(p.join(
          Directory(destination).absolute.path, p.basename(entity.path)));
      await newDirectory.create();
      await _copyDirectory(entity.absolute.path, newDirectory.path);
    } else if (entity is File) {
      await entity.copy(p.join(destination, p.basename(entity.path)));
    }
  }
}

/// Add a GitIgnore file if no file is present. This way we always at least have
/// one commit. It makes doing a git pull and push easier
Future<void> _addFileInRepo({
  required GitJournalRepo repo,
  required GitConfig config,
}) async {
  var repoPath = repo.repoPath;
  var dirList = await Directory(repoPath).list().toList();
  var anyFileInRepo = dirList.firstWhereOrNull(
    (fs) => fs.statSync().type == FileSystemEntityType.file,
  );
  if (anyFileInRepo == null) {
    Log.i("Adding .ignore file");
    var ignoreFile = File(p.join(repoPath, ".gitignore"));
    ignoreFile.createSync();

    var repo = GitRepo(folderPath: repoPath);
    await repo.add('.gitignore');

    await repo.commit(
      message: "Add gitignore file",
      authorEmail: config.gitAuthorEmail,
      authorName: config.gitAuthor,
    );
  }
}