arb_translate #

A command-line tool for automatically generating missing translations to ARB files using Google Gemini API by LeanCode

Installation #

$ dart pub global activate arb_translate

Configuration #

arb_translate has been designed to seamlessly integrate with Flutter apps using flutter_localizations for code generation from ARB files. Thanks to this integration, the setup process for arb_translate can be completed in just a few steps:

With l10n.yaml configuration file #

1. Generate your Gemini API token by following https://ai.google.dev/tutorials/setup
2. Save your API token in the environment variable ARB_TRANSLATE_API_KEY or add arb-translate-api-key: {your-api-key} to l10n.yaml in your project
3. (Optional) Add context of your application arb-translate-context: {your-app-context} eg. "sporting goods store app"

All other required parameters match flutter_localizations parameters and will be read from l10n.yaml file. You can override them using command arguments if necessary. See arb_translate --help for more information.

Without l10n.yaml configuration file #

1. Generate your Gemini API token by following https://ai.google.dev/tutorials/setup
2. Save your API token in the environment variable ARB_TRANSLATE_API_KEY or specify as command argument --api-key {your-api-key}
3. Specify other option as command arguments:
   1. --arb-dir The directory where the template and translated ARB files are located
   2. --template-arb-file The template ARB file that will be used as the basis for translation
   3. (Optional) Add context of your application --context {your-app-context} eg. "sporting goods store app"

See arb_translate --help for more information.

Configuration in regions where Gemini API is unavailable #

Gemini API is not available in all regions such as EU. You can strill use arb_translate but you need to access Gemini via Vertex AI service from Google Cloud Platform. Because of that configuration is a bit longer:

1. Create your GCP project and enable Vertex AI by following https://cloud.google.com/vertex-ai/docs/generative-ai/start/quickstarts/api-quickstart
2. Generate your API token using gcloud CLI

   $ gcloud auth print-access-token
   

3. Save your API token in the environment variable ARB_TRANSLATE_API_KEY or add arb-translate-api-key: {your-api-key} to l10n.yaml or specify as command argument --api-key {your-api-key}
4. Add arb-translate-vertex-ai-project-url: {your-project-url} to l10n.yaml or specify as command argument --vertex-ai-project-url {your-project-url}. Project url should look like this https://{region}-aiplatform.googleapis.com/v1/projects/{your-project-id}/locations/{region}/publishers/google/models
5. Add arb-translate-model-provider: vertex-ai to l10n.yaml or specify as command argument --model-provider: vertex-ai

Usage #

To generate translations, simply call arb_translate. All messages included in the template ARB file but missing from other files will be translated. To add a new locale, simply add an empty ARB file.

$ arb_translate

Or without l10n.yaml file

$ arb_translate --arb-dir...

Read more #

If you want to know how we made this tool and what challenges we had, read the story.

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Built with ☕️ by LeanCode