add github workflow for kotlin

.github/workflows/kotlin.yml

@@ -0,0 +1,47 @@
+name: Continuous Integration Checks - Kotlin
+
+on: [push, pull_request]
+
+jobs:
+  check-kotlin:
+    runs-on: ubuntu-latest
+
+    env:
+      LDK_NODE_JVM_DIR: bindings/kotlin/ldk-node-jvm
+      LDK_NODE_ANDROID_DIR: bindings/kotlin/ldk-node-android
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up JDK
+        uses: actions/setup-java@v3
+        with:
+          distribution: temurin
+          java-version: 11
+
+      - name: Run ktlintCheck on ldk-node-jvm
+        run: |
+          cd $LDK_NODE_JVM_DIR
+          ./gradlew ktlintCheck
+
+      - name: Run ktlintCheck on ldk-node-android
+        run: |
+          cd $LDK_NODE_ANDROID_DIR
+          ./gradlew ktlintCheck
+
+      - name: Generate Kotlin JVM
+        run: ./scripts/uniffi_bindgen_generate_kotlin.sh
+
+      - name: Start bitcoin and electrs
+        run: docker compose up -d
+
+      - name: Run ldk-node-jvm tests
+        run: |
+          cd $LDK_NODE_JVM_DIR
+          ./gradlew test -Penv=ci
+
+      - name: Run ldk-node-android tests
+        run: |
+          cd $LDK_NODE_ANDROID_DIR
+          ./gradlew test

bindings/kotlin/ldk-node-jvm/lib/.env.ci

@@ -0,0 +1,4 @@
+BITCOIN_CLI_BIN=docker exec ldk-node-bitcoin-1 bitcoin-cli
+BITCOIND_RPC_USER=user
+BITCOIND_RPC_PASSWORD=pass
+ESPLORA_ENDPOINT=http://127.0.0.1:3002

bindings/kotlin/ldk-node-jvm/lib/.env.local

@@ -0,0 +1,4 @@
+BITCOIN_CLI_BIN=bitcoin-cli
+BITCOIND_RPC_USER=
+BITCOIND_RPC_PASSWORD=
+ESPLORA_ENDPOINT=http://127.0.0.1:3002

bindings/kotlin/ldk-node-jvm/lib/build.gradle.kts

@@ -62,12 +62,24 @@ tasks.named<Test>("test") {
         showStackTraces = true
         showStandardStreams = true
     }
+}
+
+tasks.test {
+    doFirst {
+        val envFile = if (project.hasProperty("env") && project.property("env") == "ci") {
+            file(".env.ci")
+        } else {
+            file(".env.local")
+        }
 
-    // Adapt the variables to run the tests in your local environment
-    environment("BITCOIN_CLI_BIN", "bitcoin-cli")
-    environment("BITCOIND_RPC_USER", "user")
-    environment("BITCOIND_RPC_PASSWORD", "pass")
-    environment("ESPLORA_ENDPOINT", "http://127.0.0.1:3002")
+        if (envFile.exists()) {
+            envFile.forEachLine { line ->
+                val (key, value) = line.split("=")
+                println("Setting environment variable: $key=$value")
+                environment(key, value)
+            }
+        }
+    }
 }
 
 afterEvaluate {