fix(generator): fixed Windows system cannot find the file specified

bin/generator/prisma_info.dart

@@ -1,6 +1,8 @@
 import 'dart:io';
 import 'dart:convert' as convert;
 
+import 'package:path/path.dart';
+
 class PrismaInfo {
   /// Prisma version
   final String version;
@@ -12,20 +14,60 @@ class PrismaInfo {
 
   /// Lookup the Prisma version and platform.
   factory PrismaInfo.lookup(String packageManager) {
+    final pm = NodePackageManager(packageManager.trim());
+
     final result = Process.runSync(
-      packageManager,
-      [
-        'exec',
-        if (packageManager == 'npm') '--',
-        'prisma',
-        'version',
-        '--json'
-      ],
+      pm.toExecutable(),
+      ['exec', if (pm.isNpm) '--', 'prisma', 'version', '--json'],
       stdoutEncoding: convert.utf8,
     );
+
     // Find JSON block.
     final json = result.stdout.toString().split('{').last.split('}').first;
     final map = convert.json.decode('{$json}');
+
     return PrismaInfo._(map['prisma'], map['current-platform']);
   }
 }
+
+class NodePackageManager {
+  static final separator = Platform.isWindows ? ';' : ':';
+
+  final String packageManager;
+
+  const NodePackageManager(this.packageManager);
+
+  Iterable<String> get executables sync* {
+    yield packageManager;
+    yield '$packageManager.cmd';
+    yield '$packageManager.ps1';
+    yield '$packageManager.bat';
+    yield '$packageManager.exe';
+  }
+
+  Iterable<String> get paths sync* {
+    yield Directory.current.path;
+    yield* Platform.environment['PATH']?.split(separator) ?? [];
+  }
+
+  /// Find the executable for the package manager full path.
+  String toExecutable() {
+    // If the package manager is already an executable, return it.
+    if (File(packageManager).existsSync()) {
+      return packageManager;
+    }
+
+    for (final path in paths) {
+      for (final executable in executables) {
+        final full = join(path.trim(), executable);
+        if (File(full).existsSync()) {
+          return full;
+        }
+      }
+    }
+
+    throw StateError('Unable to find $packageManager executable.');
+  }
+
+  bool get isNpm => basename(toExecutable()).toLowerCase().startsWith('npm');
+}

bin/orm.dart

@@ -12,7 +12,7 @@ import 'generator/prisma_info.dart';
 void main(Iterable<String> args) async {
   final parase = ArgParser();
 
-  // Register the `ecosystem` option.
+  // Register the `package-manager` option.
   parase.addOption(
     'package-manager',
     abbr: 'p',
@@ -21,6 +21,13 @@ void main(Iterable<String> args) async {
     defaultsTo: 'npm',
   );
 
+  // Register the `pm-path` option.
+  parase.addOption(
+    'package-manager-executable',
+    abbr: 'e',
+    help: 'The path to the NodeJS package manager executable.',
+  );
+
   // Register the `help` option.
   parase.addFlag(
     'help',
@@ -35,7 +42,9 @@ void main(Iterable<String> args) async {
   // Print the help information if requested.
   if (results['help'] as bool) return stdout.writeln(parase.usage);
 
-  final info = PrismaInfo.lookup(results['package-manager']);
+  final executable = results['package-manager-executable'] as String?;
+  final pm = executable ?? results['package-manager'] as String;
+  final info = PrismaInfo.lookup(pm);
 
   final completer = Completer<Generator>();
   Library((LibraryBuilder updates) {

docs/docs/configuration.md

@@ -18,6 +18,32 @@ generator client {
 }
 ```
 
+`--package-manager` is optional, the default value is `npm`, It also has an alias `-p`:
+
+```prisma
+generator client {
+   provider = "dart run orm -p <package-manager>"
+}
+```
+
+### Node package manager executable
+
+If you have multiple versions of the Node package manager installed, or if you don't have the Node package manager installed globally. Please use the `-e` parameter to tell the generator:
+
+```prisma
+generator client {
+   provider = "dart run orm -e <executable>"
+}
+```
+
+Example:
+
+```prisma
+generator client {
+   provider = "dart run orm -e node_modules/.bin/pnpm"
+}
+```
+
 ## About database connection
 
 After the Prisma CLI initializes the project, there will be a `.env` file, which contains the configuration of the database connection. You can configure the database connection in this file: