Add a task that creates a tar.gz of the javadoc

Author: kcooney

build.gradle

@@ -25,4 +25,19 @@ allprojects {
             }
         }
     }
-}
+}
+
+// Create a "copyJavadoc" task that copies the Javadoc to one place
+tasks.register('tarJavadoc', Tar) {
+    archiveFileName = 'javadoc.tar.gz'
+    compression = Compression.GZIP
+    destinationDirectory = layout.buildDirectory.dir("docs/javadoc/${gradle.lib_version}")
+
+    subprojects.forEach { sub ->
+        sub.tasks.withType(Javadoc).configureEach { javadocTask ->
+            from(javadocTask.destinationDir) {
+                into sub.name
+            }
+        }
+    }
+}

buildSrc/src/main/groovy/publishing-conventions.gradle

@@ -3,7 +3,7 @@ plugins {
 }
 
 group = 'com.team2813.lib2813'
-version = "2.0.0"
+version = gradle.lib_version
 
 mavenPublishing {
 

settings.gradle

@@ -8,5 +8,6 @@
  */
 
 rootProject.name = 'lib2813'
+gradle.ext.lib_version = "2.0.0"
 include 'core', 'limelight', 'vision', 'testing'
 include 'vendor:ctre', 'vendor:rev'