add copybara script & config

GitOrigin-RevId: 3f8e5453ae75ef5724c00131a55e1315cef70841

tools/copybara/copy.bara.sky

@@ -0,0 +1,25 @@
+sourceUrl = "git@github.com:mcmillen/sneak.git"
+destinationUrl = "git@github.com:mcmillen/sneak-public.git"
+
+core.workflow(
+    name = "default",
+    mode = "ITERATIVE",
+    origin = git.origin(
+        url = sourceUrl,
+        ref = "master",
+    ),
+    destination = git.destination(
+        url = destinationUrl,
+        fetch = "master",
+        push = "master",
+    ),
+    # Change path to the folder you want to publish publicly
+    origin_files = glob(["tools/**", "Shared/**", "Jumpy.Shared/**"]),
+
+    authoring = authoring.pass_thru("Unknown Author <nobody@semicolin.games>"),
+
+    # Change the path here to the folder you want to publish publicly
+    #transformations = [
+    #  core.move("", ""),
+    #],
+)

tools/copybara/copybara.sh

@@ -0,0 +1,6 @@
+#/bin/sh
+
+SCRIPT=$(readlink -f "$0")
+SCRIPTPATH=$(dirname "$SCRIPT")
+
+java -jar ~/bin/copybara_deploy.jar migrate $SCRIPTPATH/copy.bara.sky