The purpose of this directory is to host the Gradle plugins that add tasks for building the native binaries required by bdk-jvm and bdk-android, and building the language bindings files.

The plugins are applied to the specific build.gradle.kts files in bdk-jvm and bdk-android through the plugins block:

// bdk-jvm
plugins {
    id("org.bitcoindevkit.plugin.generate-jvm-bindings")
}

// bdk-android
plugins {
    id("org.bitcoindevkit.plugins.generate-android-bindings")
}

They add a series of tasks which are brought together into an aggregate task called buildJvmLib for bdk-jvm and buildAndroidLib for bdk-android.

This aggregate task:

Builds the native library(ies) using bdk-ffi
Places it in the correct resource directory
Builds the bindings file