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Shared Build Configuration for Android libraries

This repository contains common configuration to be used across our Android libraries. The advantage of sharing these configurations is mainly consistency of configuration among multiple libraries and reduction of boilerplate.

Kickstart

First add the submodule to your project:

$ cd my_project
$ git submodule add [email protected]:rakutentech/android-buildconfig.git config

Then modify your root build.gradle to apply the configuration:

buildscript {
  // This must be the first line of your buildscript closure
  apply from: "config/index.gradle"

  // …repositories, classpaths, etc…
}

From there, you can reference the global CONFIG object from any gradle file inside your project.

By default only versions is added to the project. You can apply configurations as desired.

Available configurations

Versioning Contract

This configuration's versions follow semantic versioning. We align all libraries that we bundle together on the same major version of this configuration. To clarify the semantics in the context of shared configurations here are a few examples of what are breaking changes (major version change), backwards compatible improvements (minor version change) and bug fixes (patch level):

Major Minor Patch
move gradle file to a different path add new configuration change minor or patch version of dependency
remove gradle file add new task in existing configuration refactor
change major version of dependencies add new dependency version
change of the versioning contract reduce boilerplate for consumer

To ensure usability we follow these rules:

  • Every version has a corresponding git tag of the format Major.Minor.Patch
  • Every version must describe the changes in versions section
  • Major version changes must also provide a migration guide from the previous major version

Versions

HEAD

  • Update versions:
    • AGP 4.0.2 (requires Gradle 6.1.1+).
    • Targets (and builds with) SDK 30.

6.1.0 (2021-03-05)

  • Feature: Added publication configuration for Java libraries.

6.0.0 (2021-03-03)

  • Feature: Added Maven Central publishing script.
  • Removed: Bintray/JCenter publishing script was removed because these services are being shutdown.
  • Updated: Target and compile versions bumped to 30.
  • Updated: AGP bumped to 4.0.2. This now requires your project to use Gradle 6.1.1+.

5.0.0 (2020-11-16)

  • Quality: replaced deprecated FindBugs with SpotBugs.

4.3.2 (2020-10-05)

  • Fixed: GitHub pages publishing would sometimes upload the incomplete documentation.

4.3.1 (2020-09-03)

  • Fixed: Bintray publishing was failing due to an impcompatibility of the Bintray Gradle plugin with the Android Maven Publish plugin. The Bintray Gradle plugin has been removed so you no longer need to add com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4 as a plugin dependency.

4.3.0 (2020-08-06)

4.2.0 (2020-07-31)

4.1.0 (2020-07-22)

  • Added support for using Gradle Property for repository details to handle different settings for snapshot and release repo.

4.0.0 (2020-07-17)

  • Breaking Change: Remove digital.wup.android-maven-publish plugin as it is deprecated and AGP now has built-in support for the maven-publish plugin. Due to this change, you now must configure your publications within a the afterEvaluate phase. See the [publishing readme](publish/README.md] for more details. You should also remove digital.wup.android-maven-publish from your dependencies.
  • Added support for [KDoc generation](documentation/README.md] using dokka.
  • Update target/compile SDK to 29 and update Min SDK to 21.
  • Update Android Gradle Plugin to 3.6.2. You must now update your Gradle version to 5.6.4+.
  • Add support for publishing to Bintray or Artifactory.
  • Fixed an issue with documentation generation where images sometimes weren't copied to the documentation folder.
  • Add property closure to CONFIG. This can be used to return a value that has been set as either an environment variable or gradle property. Use like this: CONFIG.property('PROPERTY_NAME').

3.0.0 (2018-04-13)

  • Remove Kotlin check style tool, Ktlint, to replace it by Detekt.

2.1.0 (2018-04-13)

  • Quality/jacoco: get rid of dependency of old unmaintained gradle plugin.

2.0.0 (2018-03-26)

  • Documentation/doclava: make image assets project local, i.e. not shared among subprojects.

1.2.0 (2018-03-23)

  • Documentation/doclava: add customization of javadoc source
  • Documentation/doclava: add customization of javadoc classpath
  • Documentation/doclava: simplified javadoc classpath setup
  • buildSrc/SnapshotCheck: only apply to projcets in release version (according to semver)
  • Quality/Pmd: Exclude AvoidFieldNameMatchingMethodName, JUnitTestContainsTooManyAsserts, CommentDefaultAccessModifier, MethodArgumentCouldBeFinal rules
  • Quality/Checkstyle: Add support for @SuppressWarnings("checkstyle:RuleName) suppression of checkstyle rules
  • Quality/Findbugs: Setup complete classpath for findbugs task, relying on android.libraryVariants. Note that this does not work on android applications, but can be adapted to that usecase if it becomes necessary

1.1.0 (2018-01-16)

  • Documantation: Add doclava javadoc generation
  • Quality/Checkstyl: Change checkstyle severity from warning to error so that non-compliant code fails the build (can still be disabled with ignoreFailues flag in quality task extensions)
  • Quality/jacocco: automatically make check depend on jacacoTestReport

1.0.0 (2017-12-26)

  • Add semantic versioning & documentation guidelines
  • Move all configurations into folders
  • Split up README into sub-READMEs and move to respective folders
  • Merge Kotlin into master