Add sources jar

matrix-sdk-android/gradle-publish.gradle

-apply plugin: 'java'
+apply plugin: 'com.android.library'
 apply plugin: 'maven-publish'
 
 def groupIdString = "org.matrix.android"
@@ -9,6 +9,11 @@ def publicationName = "release"
 def projectId = "16"
 def token = "e3yxa-_Duy7xLabSa7_z"
 
+task sourceJar(type: Jar) {
+    from android.sourceSets.main.java.srcDirs
+    classifier = "sources"
+}
+
 publishing {
     publications {
         "$publicationName"(MavenPublication) {
@@ -16,17 +21,16 @@ publishing {
             artifactId artifactIdString
             version versionName
             artifact artifactPath
+            artifact sourceJar
 
             // To include project dependencies
             pom.withXml {
                 def dependencies = asNode().appendNode('dependencies')
-                configurations.implementation.allDependencies.each {
-                    if (it.group != null) {
-                        def dependency = dependencies.appendNode('dependency')
-                        dependency.appendNode('groupId', it.moduleGroup)
-                        dependency.appendNode('artifactId', it.moduleName)
-                        dependency.appendNode('version', it.moduleVersion)
-                    }
+                configurations.getByName("${publicationName}CompileClasspath").getResolvedConfiguration().getFirstLevelModuleDependencies().each {
+                    def dependency = dependencies.appendNode('dependency')
+                    dependency.appendNode('groupId', it.moduleGroup)
+                    dependency.appendNode('artifactId', it.moduleName)
+                    dependency.appendNode('version', it.moduleVersion)
                 }
             }
         }
@@ -44,8 +48,4 @@ publishing {
             }
         }
     }
-}
-java {
-    sourceCompatibility = JavaVersion.VERSION_11
-    targetCompatibility = JavaVersion.VERSION_11
 }
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