feat(read)!: change --edit preceded to --from and --to

packages/commitlint_read/lib/commitlint_read.dart

@@ -9,35 +9,51 @@ import 'package:path/path.dart';
 /// Read commit messages in given range([from], [to]),
 ///  or in [edit] file.
 /// Return commit messages list.
-Future<Iterable<String>> read(
-    {String? from, String? to, String edit = './.git/COMMIT_EDITMSG'}) async {
-  if (from == null && to == null) {
-    return await _getEditingCommit();
+Future<Iterable<String>> read({
+  String? from,
+  String? to,
+  String? edit,
+  String? workingDirectory,
+  Iterable<String>? gitLogArgs,
+}) async {
+  if (edit != null) {
+    return await _getEditingCommit(
+        edit: edit, workingDirectory: workingDirectory);
   }
-  return _getRangeCommits(from, to);
+  final range = [if (from != null) from, to ?? 'HEAD'].join('..');
+  return _getRangeCommits(
+    gitLogArgs: ['--format=%B', range, ...?gitLogArgs],
+    workingDirectory: workingDirectory,
+  );
 }
 
-Future<Iterable<String>> _getRangeCommits(String? from, String? to) async {
-  final range = [if (from != null) from, to ?? 'HEAD'].join('..');
+Future<Iterable<String>> _getRangeCommits({
+  required Iterable<String> gitLogArgs,
+  String? workingDirectory,
+}) async {
   final result = await Process.run(
     'git',
-    ['log', '--format=%B', range],
+    ['log', ...gitLogArgs],
+    workingDirectory: workingDirectory,
   );
   return ((result.stdout as String).trim().split('\n'))
       .where((message) => message.trim().isNotEmpty)
       .toList();
 }
 
-Future<Iterable<String>> _getEditingCommit() async {
+Future<Iterable<String>> _getEditingCommit({
+  required String edit,
+  String? workingDirectory,
+}) async {
   final result = await Process.run(
     'git',
     ['rev-parse', '--show-toplevel'],
+    workingDirectory: workingDirectory,
   );
   final root = result.stdout.toString().trim();
-  final msgFile = File(join(root, '.git', 'COMMIT_EDITMSG'));
-
-  if (await msgFile.exists()) {
-    return [msgFile.readAsStringSync()];
+  final file = File(join(root, edit));
+  if (await file.exists()) {
+    return [await file.readAsString()];
   }
   return [];
 }