gmana snippets

features

Case Conversion

Quickly convert the case of the selected text or the word under the cursor. Supports various case types and auto-selects the word if no text is explicitly selected. Available via the editor context menu or Command Palette.

Change Case... quick picker
UPPERCASE
lowercase
KEBAB-CASE
kebab-case
snake_case
SNAKE_CASE
camelCase
PascalCase
Sentence case
Title Case
Toggle Case
CONSTANT_CASE
dot.case
Header-Case
path/case

Keybindings:

Ctrl + CapsLock / Cmd + CapsLock: Toggle Case
Ctrl + Shift + U / Cmd + Ctrl + U: UPPERCASE
Ctrl + Shift + L / Cmd + Ctrl + L: lowercase

Clean Architecture Generators

Generate boilerplate code for Flutter Clean Architecture projects. Accessible from the Explorer context menu.

Available generator commands:

gmana.cleanArchitecture.generateStructure
gmana.cleanArchitecture.generateFeature
gmana.cleanArchitecture.generateFeatureWithTemplates

`gmana.cleanArchitecture.generateStructure`

Creates the base clean architecture folders under the selected target directory.

The generator first asks which layer to create. Choose All layers for the full structure, or choose Presentation layer, Application layer, Domain layer, or Infrastructure layer to create only that layer's folders.

target/
+-- presentation/
|   +-- screens/
|   +-- controllers/
|   +-- providers/
|   +-- widgets/
+-- application/
|   +-- use_cases/
|   +-- models/
+-- domain/
|   +-- entities/
|   +-- repositories/
|   +-- value_objects/
+-- infrastructure/
    +-- data_sources/
    +-- repositories_impl/
    +-- mappers/

`gmana.cleanArchitecture.generateFeature`

Creates a feature module under the selected target directory plus empty Dart files for the requested feature. Feature names are normalized to snake_case for folder and file names. For example, selecting lib/features and entering auth creates lib/features/auth.

Before entering the feature name, choose whether to generate all layers or a single layer. Single-layer generation creates only that layer's folders, barrel file, feature files, and starter test file.

target/{feature}/
+-- {feature}.dart
+-- presentation/
|   +-- presentation.dart
|   +-- screens/
|   |   +-- {feature}_screen.dart
|   +-- controllers/
|   |   +-- {feature}_controller.dart
|   +-- providers/
|   |   +-- {feature}_provider.dart
|   +-- widgets/
|       +-- {feature}_form.dart
+-- application/
|   +-- application.dart
|   +-- use_cases/
|   |   +-- get_{feature}.dart
|   |   +-- create_{feature}.dart
|   +-- models/
|       +-- {feature}_request.dart
|       +-- {feature}_response.dart
+-- domain/
|   +-- domain.dart
|   +-- entities/
|   |   +-- {feature}.dart
|   +-- repositories/
|   |   +-- {feature}_repository.dart
|   +-- value_objects/
|       +-- {feature}_value_objects.dart
+-- infrastructure/
    +-- infrastructure.dart
    +-- data_sources/
    |   +-- {feature}_api.dart
    |   +-- {feature}_local_storage.dart
    +-- repositories_impl/
    |   +-- {feature}_repository_impl.dart
    +-- mappers/
        +-- {feature}_mapper.dart

When a workspace is open, feature commands also create starter tests under the workspace test directory:

test/features/{feature}/
+-- domain/entities/{feature}_test.dart
+-- application/use_cases/{feature}_use_cases_test.dart
+-- infrastructure/mappers/{feature}_mapper_test.dart
+-- presentation/controllers/{feature}_controller_test.dart

`gmana.cleanArchitecture.generateFeatureWithTemplates`

Creates the same structure as generateFeature, but writes starter Dart code into each feature file:

Layer	Generated templates
`domain`	Entity, repository contract, value object
`application`	Get/create use cases, request/response models
`infrastructure`	API data source, local storage data source, repository implementation, mapper
`presentation`	Riverpod controller/state, provider wiring, screen, form widget
`tests`	Starter Flutter tests for entity, use cases, mapper, and controller

Barrel Export Generator

Generate a Dart barrel export file for an existing folder. Accessible from the Explorer context menu.

Available command:

gmana.barrelExport.generate

The command scans the selected folder recursively and writes a barrel file such as domain.dart, presentation.dart, or index.dart.

Generated exports skip:

the barrel file itself
private Dart files that start with _
Dart test files ending with _test.dart
common generated files such as .g.dart, .gr.dart, and .freezed.dart

Example output:

export 'entities/user.dart';
export 'repositories/user_repository.dart';
export 'value_objects/email.dart';

usage

type part of a snippet, press enter, and the snippet unfolds.

snippets

flutters

Snippet	Purpose
`g-grid-view-builder`	`GridView.builder` with delegate, count, and builder
`g-grid-view-count`	`GridView.count` with spacing and child slots
`g-grid-view-extent`	`GridView.extent` with max cross-axis extent
`g-input-decoration-theme`	Flutter `InputDecorationTheme` scaffold
`g-init-state`	Flutter State `initState` override
`g-dispose`	Flutter State `dispose` override
`g-reassemble`	`g-reassemble`
`g-did-change-dependencies`	`g-did-change-dependencies`
`g-did-update-widget`	`g-did-update-widget`
`g-mounted`	`g-mounted`
`g-list-view-builder`	`ListView.builder` with item count and builder
`g-list-view-separated`	`ListView.separated` with item and separator builders
`g-responsive-layout`	Responsive layout helper for mobile, tablet, and desktop
`g-show-date-picker`	Flutter `showDatePicker` call scaffold
`g-show-modal-bottom-sheet`	Flutter modal bottom sheet scaffold
`g-form-key`	Global form key declaration
`g-k-is-web`	Flutter `kIsWeb` platform check
`g-view`	Stateless Flutter view scaffold
`g-screen`	StatelessWidget screen scaffold
`g-screen-cw`	ConsumerWidget screen scaffold
`g-screen-hcw`	HookConsumerWidget screen scaffold
`g-screen-gr`	GoRouteData and ConsumerWidget screen scaffold
`g-part`	Dart generated part directive
`g-to-user`	Dart extension for converting Firebase auth data to a user model

riverpods

Snippet	Purpose
`g-repo`	Repository interface, implementation, and Riverpod provider
`g-freezed`	Freezed model with JSON serialization
`g-notifier`	Riverpod Notifier with code generation
`g-notifier-async`	Riverpod AsyncNotifier with code generation

samples

Snippet	Purpose
`g-sample-http-with-list-view`	HTTP sample rendered with a Flutter list view

nextjs

Snippet	Purpose
`g-fc`	`generate function component`
`g-const-fc`	React `FC` component scaffold from file name
`g-fc-children`	`generate nextjs page with children props`
`g-function`	`generate nextjs function`
`g-font`	`generate next font`
`g-get-ip`	`generate function get ip`
`g-server-side`	`generate server side page`

typescript

Snippet	Purpose
`g-env`	Zod-backed environment variable parsing
`g-fn`	Named TypeScript function scaffold
`g-gmana-site-config`	GMANA site metadata configuration object

yaml

Snippet	Purpose
`flutter_launcher_icons`	Flutter launcher icons configuration
`g-analysis`	Flutter `analysis_options.yaml` configuration
`g-firebase-package`	Firebase package dependency block

GMana Snippets

GMana