WARNING: This software is no longer actively developed. We will still apply security fixes where reported, and do basic maintenance work, but no new features or will be worked on. We will try to consider and merge contributions where possible.
OpenKeychain (for Android)
OpenKeychain is an OpenPGP implementation for Android.
For a more detailed description and installation instructions go to https://www.openkeychain.org .
Branches
- The development of OpenKeychain happens in the "master" branch.
- For every release a new branch, e.g., "3.2-fixes" is created to backport fixes from "master"
How to help the project?
Translate the application
Translations are managed at Transifex, please contribute there at https://www.transifex.com/projects/p/open-keychain/
Contribute Code
- Lookout for interesting issues on Github. We have tagged issues were we explicitly like to see contributions: https://github.com/open-keychain/open-keychain/labels/help%20wanted
- Read this README, especially the notes about coding style
- Fork OpenKeychain and contribute code (the best part
đ ) - Open a pull request on Github. We will help with occurring problems and merge your changes back into the main project.
- PROFIT
For bigger changes
- Join the development mailinglist at https://lists.riseup.net/www/subscribe/openkeychain
- Propose bigger changes and discuss the consequences
I am happy about every code contribution and appreciate your effort to help us developing OpenKeychain!
Development
Development mailinglist at https://lists.riseup.net/www/subscribe/openkeychain
Build with Gradle
- Clone the project from GitHub
- Get all external submodules with
git submodule update --init --recursive - Have Android SDK "tools", "platform-tools", and "build-tools" directories in your PATH (http://developer.android.com/sdk/index.html)
- Open the Android SDK Manager (shell command:
android). Expand the Tools directory and select "Android SDK Build-tools (Version 27.0.3)". Expand the Extras directory and install "Android Support Library", as well as "Local Maven repository for Support Libraries" Select SDK Platform for API levels 27. - Export ANDROID_HOME pointing to your Android SDK
- Execute
./gradlew assembleFdroidDebug - You can install the app with
adb install -r OpenKeychain/build/outputs/apk/OpenKeychain-fdroid-debug.apk
The "google" flavor is only used to include donations via Play Store, for development the "fdroid" flavor should be used.
Run Tests
- Use OpenJDK instead of Oracle JDK
- Execute
./gradlew clean testFdroidDebugUnitTest --continue
Run Jacoco Test Coverage
- Use OpenJDK instead of Oracle JDK
- Execute
./gradlew clean testFdroidDebugUnitTest jacocoTestReport - Report is here: OpenKeychain/build/reports/jacoco/jacocoTestReport/html/index.html
Development with Android Studio
We are using the newest Android Studio for development. Development with Eclipse is currently not possible because we are using the new project structure.
- Clone the project from Github
- Get all external submodules with
git submodule update --init --recursive - From Android Studio: File -> Import Project -> Select the cloned top folder
Libraries
Bouncy Castle
OpenKeychain uses a forked version with some small changes. These changes will been sent to Bouncy Castle.
see
Bouncy Castle resources
- Repository: https://github.com/bcgit/bc-java
- Issue tracker: http://www.bouncycastle.org/jira/browse/BJA
Documentation
- Documentation project at http://www.cryptoworkshop.com/guide/
- Tests in https://github.com/bcgit/bc-java/tree/master/pg/src/test/java/org/bouncycastle/openpgp/test
- Examples in https://github.com/bcgit/bc-java/tree/master/pg/src/main/java/org/bouncycastle/openpgp/examples
- Mailinglist Archive at http://bouncy-castle.1462172.n4.nabble.com/Bouncy-Castle-Dev-f1462173.html
- Commit changelog of pg subpackage: https://github.com/bcgit/bc-java/commits/master/pg
Build System
We try to make our builds as reproducible/deterministic as possible.
Update Gradle version
- Always use a fixed Android Gradle plugin version not a dynamic one, e.g.
0.7.3instead of0.7.+(allows offline builds without lookups for new versions, also some minor Android plugin versions had serious issues, i.e. 0.7.2 and 0.8.1) - Update every build.gradle file with the new gradle version and/or gradle plugin version
- build.gradle
- OpenKeychain/build.gradle
- run ./gradlew wrapper twice to update gradle and download the new gradle jar file
- commit the corresponding Gradle wrapper to the repository (allows easy building for new contributors without the need to install the required Gradle version using a package manager)
Update SDK and Build Tools
- Change SDK and Build Tools in git submodules "openkeychain-api-lib" and "openpgp-api-lib" manually. They should also build on their own without the ext variables.
Update library
- You can check for library updates with ``./gradlew dependencyUpdates -Drevision=release
Add new library
- You can add the library as a Maven dependency or as a git submodule (if patches are required) in the "extern" folder.
- You can get all transitive dependencies with
./gradlew -q dependencies OpenKeychain:dependencies - If added as a git submodule, change the
compileSdkVersionin build.gradle to use the variables from the root project:
android {
compileSdkVersion rootProject.ext.compileSdkVersion
}
- You can check for wrong
compileSdkVersionbyfind -name build.gradle | xargs grep compileSdkVersion
Slow Gradle?
- https://www.timroes.de/2013/09/12/speed-up-gradle/
- Disable Lint checking if it is enabled in build.gradle
Error:Configuration with name 'default' not found.
Gradle project dependencies are missing. Do a git submodule init && git submodule update
Build on Mac OS X fails?
Try exporting JAVA_TOOL_OPTIONS="-Dfile.encoding=UTF8"
Translations
Translations are hosted on Transifex, which is configured by ".tx/config".
- To pull newest translations install transifex client (e.g.
apt-get install transifex-client) - Config Transifex client with "~/.transifexrc"
- Go into root folder of git repo
- execute
tx pull -af --skip
see http://help.transifex.net/features/client/index.html#user-client
Coding Style
Code
- Indentation: 4 spaces, no tabs.
- Maximum line width for code and comments: 100.
- Opening braces don't go on their own line.
- Field names: Non-public, non-static fields start with m.
- Acronyms are words: Treat acronyms as words in names, yielding !XmlHttpRequest, getUrl(), etc.
- Fully Qualify Imports: Do not use wildcard-imports such as
import foo.*; - Android Studio warnings should be fixed, or suppressed if they are incorrect.
The full coding style can be found at http://source.android.com/source/code-style.html
Automated syntax check with CheckStyle
Linux
- Paste the
tools/checkstyle.xmlfile to~/.AndroidStudioPreview/config/codestyles/ - Go to Settings > Code Style > Java, select OpenPgpChecker, as well as Code Style > XML and select OpenPgpChecker again.
- Start code inspection and see the results by selecting Analyze > Inspect Code from Android-Studio or you can directly run checkstyle via cli with
.tools/checkstyle. Make sure it's executable first.
Mac OSX
- Paste the
tools/checkstyle.xmlfile to~/Library/Preferences/AndroidStudioPreview/codestyles - Go to Preferences > Code Style > Java, select OpenPgpChecker, as well as Code Style > XML and select OpenPgpChecker again.
- Start code inspection and see the results by selecting Analyze > Inspect Code from Android-Studio or you can directly run checkstyle via cli with
.tools/checkstyle. Make sure it's executable first.
Windows
- Paste the
tools/checkstyle.xmlfile toC:\Users\<UserName>\.AndroidStudioPreview\config\codestyles - Go to File > Settings > Code Style > Java, select OpenPgpChecker, as well as Code Style > XML and select OpenPgpChecker again.
- Start code inspection and see the results by selecting Analyze > Inspect Code from Android-Studio.
Licenses
Copyright 2017 SchĂŒrmann & Breitmoser GbR
Licensed under the GPLv3.
Google Play and the Google Play logo are trademarks of Google Inc.
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