Cwtch UI

A Flutter based Cwtch UI.

This README covers build instructions, for information on Cwtch itself please go to https://cwtch.im

Installing

• Android: Available from the Google Play Store (currently patrons only) or from https://cwtch.im/download/ as an APK
• Windows: Available from https://cwtch.im/download/ as an installer or .zip file
• Linux: Available from https://cwtch.im/download/ as a .tar.gz
  • install.home.sh installs the app into your home directory
  • install.sys.sh as root to install system wide
  • or run out of the unziped directory
• MacOS: Cwtch.dmg coming soon...

Running

Cwtch processes the following environment variables:

• CWTCH_HOME= overrides the default storage path of ~/.cwtch with what ever you choose
• LOG_FILE= will reroute all of libcwtch-go's logging to the specified file instead of the console
• LOG_LEVEL=debug will set the log level to debug instead of info

Building

Getting Started

First you will need a valid flutter sdk installation and run flutter pub get to fetch dependencies.

You will probably want to disable Analytics on the Flutter Tool: flutter config --no-analytics

Building on Linux (for Linux)

• run fetch-libcwtch-go.shlibCwtch-go to fetch a prebuild version of libCwtch-go.so go to ./linux. Include ./linux in LD_LIBRARY_PATH
• run fetch-tor.sh and/or ensure that tor is in $PATH
• run flutter run -d linux

Building on Windows (for Windows)

• run fetch-libcwtch-go.ps1 to fetch a prebuild version of libCwtch.dll
• run fetch-tor-win.ps1 to fetch Tor for windows
• run flutter run -d windows

Building on Linux/Windows (for Android)

• Follow the steps above to fetch libCwtch-go and tor (these will fetch Android versions of these binaries also)
• run flutter run with an Android phone connect via USB (or some other valid debug mode)

Building on MacOS

• Navigate to https://git.openprivacy.ca/cwtch.im/libcwtch-go/releases and download the latest libCwtch.dylib into this folder
• Download and install Tor Browser (it's currently the only way to get tor for macos)
• flutter build macos
• ./macos/package-release.sh

results in a Cwtch.dmg that has libCwtch.dylib and tor in it as well and can be installed into Applications

Known Platform Issues

• Windows: Flutter engine has a known bug around the Right Shift key being sticky. We have implemented a partial workaround, if this happens, tap left shift and it will reset.

l10n Instructions

Adding a new string

Strings are managed directly from our Lokalise(url?) project. Keys should be valid Dart variable names in lowerCamelCase. After adding a new key and providing/obtaining translations for it, follow the next step to update your local copy.

Updating translations

Only Open Privacy staff members can update translations.

In Lokalise, hit Download and make sure:

• Format is set to "Flutter (.arb)
• Output filename is set to l10n/intl_%LANG_ISO%.%FORMAT%
• Empty translations is set to "Replace with base language"
• Order "Last Update"

Build, download and unzip the output, overwriting lib/l10n. The next time Flwtch is built, Flutter will notice the changes and update app_localizations.dart accordingly (thanks to generate:true in pubspec.yaml).

Adding a language

If a new language has been added to the Lokalise project, two additional manual steps need to be done:

• Create a new key called localeXX for the name of the language
• Add it to the settings pane by updating getLanguageFull() in lib/views/globalsettingsview.dart

Then rebuild as normal.

Using a string

Any widget underneath the main MaterialApp should be able to:

import 'package:flutter_gen/gen_l10n/app_localizations.dart';

and then use:

Text(AppLocalizations.of(context)!.stringIdentifer),

Configuration

With generate: true in pubspec.yaml, the Flutter build process checks l10n.yaml for input/output filenames.