1 files changed, 26 insertions, 0 deletions
diff --git a/buildSrc/src/main/kotlin/org/jetbrains/DokkaVersion.kt b/buildSrc/src/main/kotlin/org/jetbrains/DokkaVersion.kt
new file mode 100644
index 00000000..2a5c21a7
--- /dev/null
+++ b/buildSrc/src/main/kotlin/org/jetbrains/DokkaVersion.kt
@@ -0,0 +1,26 @@
+package org.jetbrains
+
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.extra
+import org.gradle.kotlin.dsl.provideDelegate
+
+fun Project.configureDokkaVersion(): String {
+    var dokka_version: String? by this.extra
+    if (dokka_version == null) {
+        val dokka_version_base: String by this
+        dokka_version = dokkaVersionFromBase(dokka_version_base)
+    }
+    return checkNotNull(dokka_version)
+}
+
+private fun dokkaVersionFromBase(baseVersion: String): String {
+    val buildNumber = System.getenv("BUILD_NUMBER")
+    val forceSnapshot = System.getenv("FORCE_SNAPSHOT") != null
+    if (forceSnapshot || buildNumber == null) {
+        return "$baseVersion-SNAPSHOT"
+    }
+    return "$baseVersion-$buildNumber"
+}
+
+val Project.dokkaVersion: String
+    get() = configureDokkaVersion()