2 files changed, 56 insertions, 0 deletions
diff --git a/integration-tests/src/main/kotlin/org/jetbrains/dokka/it/S3Project.kt b/integration-tests/src/main/kotlin/org/jetbrains/dokka/it/S3Project.kt
new file mode 100644
index 00000000..ee69ef62
--- /dev/null
+++ b/integration-tests/src/main/kotlin/org/jetbrains/dokka/it/S3Project.kt
@@ -0,0 +1,16 @@
+package org.jetbrains.dokka.it
+
+import org.junit.After
+import java.io.File
+
+interface S3Project {
+    val projectOutputLocation: File
+
+    @After
+    fun copyToLocation() {
+        System.getenv("DOKKA_IT_AWS_PATH")?.also { location ->
+            println("Copying to ${File(location).absolutePath}")
+            projectOutputLocation.copyRecursively(File(location))
+        } ?: println("No copy path provided, skipping")
+    }
+}
diff --git a/integration-tests/src/main/kotlin/org/jetbrains/dokka/it/gitSubmoduleUtils.kt b/integration-tests/src/main/kotlin/org/jetbrains/dokka/it/gitSubmoduleUtils.kt
new file mode 100644
index 00000000..312ff21f
--- /dev/null
+++ b/integration-tests/src/main/kotlin/org/jetbrains/dokka/it/gitSubmoduleUtils.kt
@@ -0,0 +1,40 @@
+package org.jetbrains.dokka.it
+
+import org.eclipse.jgit.api.Git
+import org.eclipse.jgit.storage.file.FileRepositoryBuilder
+import java.io.File
+import java.nio.file.Path
+
+fun AbstractIntegrationTest.copyAndApplyGitDiff(diffFile: File) =
+    copyGitDiffFileToParent(diffFile).let(::applyGitDiffFromFile)
+
+fun AbstractIntegrationTest.copyGitDiffFileToParent(originalDiffFile: File) =
+    originalDiffFile.copyTo(File(projectDir.parent, originalDiffFile.name))
+
+fun AbstractIntegrationTest.applyGitDiffFromFile(diffFile: File) {
+    val projectGitFile = projectDir.resolve(".git")
+    val git = if (projectGitFile.exists()) {
+        if (projectGitFile.isFile) {
+            println(".git file inside project directory exists, removing")
+            removeGitFile(projectDir.toPath())
+            Git.init().setDirectory(projectDir).call()
+        } else {
+            println(".git directory inside project directory exists, reusing")
+            FileRepositoryBuilder().apply {
+                isMustExist = true
+                gitDir = projectDir
+            }.let { Git(it.build()) }
+        }
+    } else {
+        Git.init().setDirectory(projectDir).call()
+    }
+    git.apply().setPatch(diffFile.inputStream()).call()
+}
+
+private fun removeGitFile(repository: Path) =
+    repository.toFile()
+        .listFiles().orEmpty()
+        .filter { it.name.toLowerCase() == ".git" }
+        .forEach { it.delete() }
+
+