Copyright (c) 2019 Proton AG

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• Install sdk, ndk, cmake, swig
• Clone this repository
• ./gradlew assembleProductionVanillaOpenSourceDebug or open and build in Android Studio

To complete a release build signing keys need to be provided:

• ./gradlew assembleProductionVanillaOpenSourceRelease -PkeyStoreFilePath= -PkeyStoreKeyAlias= -PkeyStorePassword= -PkeyStoreKeyPassword=

Project uses agreed code style ProtonStyle.xml for java. Import it in Android studio via File>>Settings>>Editor>>Code style>>Import Scheme For kotlin's code style we use ktlint with default rules

If you would like to contribute, please keep in mind the following rules:

• Try to stick to the project's existing code style and naming conventions
• The code base is mostly written in Java, but we are transitioning to Kotlin, so new code should be written in Kotlin where possible
• Our preferred tech stack is Kotlin, MVVM, data-binding and coroutines, so any new features or large refactors should conform to this preferred tech stack
• After adding/updating open source dependencies run gradlew updateLicensesJson to update attributions.

Internally our CI automatically checks all pull requests for code style issues, and runs our tests. However you can run those locally as well.

gradlew checkstyle gradlew detekt gradlew test gradlew androidTest 

By making a contribution to this project you agree to the following:

1. I assign any and all copyright related to the contribution to Proton AG;
2. I certify that the contribution was created in whole by me;
3. I understand and agree that this project and the contribution are public and that a record of the contribution (including all personal information I submit with it) is maintained indefinitely and may be redistributed with this project or the open source license(s) involved.

All our builds (except for F-droid) will be signed with same key. SHA256 fingerprint for signing certificate

ch.protonvpn.android DC:C9:43:9E:C1:A6:C6:A8:D0:20:3F:34:23:EE:42:BC:C8:B9:70:62:8E:53:CB:73:A0:39:3F:39:8D:D5:B8:53 

• Version matches format: [major][minor][patch][hotfix]

The code and datafiles in this distribution are licensed under the terms of the GPLv3 as published by the Free Software Foundation. See https://www.gnu.org/licenses/ for a copy of this license.

Copyright (c) 2019 Proton AG