try different posix fix, widen analyzer, pubignore

.pubignore

@@ -0,0 +1,11 @@
+Dockerfile
+skynet.yaml
+.dart_tool/
+.idea/
+.packages
+.pub/
+build/
+/doc/api/
+/pubspec.lock
+test/
+tool/

pubspec.yaml

@@ -7,7 +7,7 @@ environment:
  sdk: ">=2.11.0 <3.0.0"
 
 dependencies:
-  analyzer: '>=1.0.0 <3.0.0'
+  analyzer: '>=1.0.0 <6.0.0'
   args: ^2.0.0
   async: ^2.3.0
   build_runner: '>=1.0.0 <3.0.0'

test/functional.dart

@@ -34,14 +34,19 @@ Future<TestProcess> runDevToolFunctionalTest(
       .where((f) => p.basename(f.path) == 'pubspec.yaml')
       .map((f) => f.absolute);
   final pathDepPattern = RegExp(r'path: (.*)');
-  final posix = p.Context(style: p.Style.posix);
+
   for (final pubspec in pubspecs) {
     final updated =
         pubspec.readAsStringSync().replaceAllMapped(pathDepPattern, (match) {
       final relDepPath = match.group(1);
-      final relPubspecPath = posix.relative(pubspec.path, from: d.sandbox);
-      final absPath = posix.absolute(posix.normalize(
-          posix.join(templateDir.path, relPubspecPath, relDepPath, '..')));
+      final relPubspecPath = p.relative(pubspec.path, from: d.sandbox);
+      var absPath = p.absolute(p.normalize(
+          p.join(templateDir.path, relPubspecPath, relDepPath, '..')));
+      // Since pubspec paths should always be posix style or dart analyze
+      // complains, switch to forward slashes on windows
+      if (Platform.isWindows) {
+        absPath = absPath.replaceAll('\\', '/');
+      }
       return 'path: $absPath';
     });
     pubspec.writeAsStringSync(updated);