Misc Changes

app/src/main/java/solutions/tretter/githugandroid/levels/SubmoduleLevel.kt

@@ -0,0 +1,21 @@
+package solutions.tretter.githugandroid
+
+/**
+ * Port of the upstream ruby-githug `submodule` level.
+ *
+ * Setup documents the repository shape the learner explores. Evaluation is kept
+ * state-based whenever the exercise changes repository objects; answer-only
+ * levels intentionally validate the answer entered at the prompt.
+ */
+internal fun submoduleLevel(): Level = level(
+    id = "submodule",
+    title = "Submodule",
+    description = "You want to include the files from the following repo: `https://github.com/jackmaney/githug-include-me` into the folder `./githug-include-me`. Do this without manually cloning the repo or copying the files from the repo into this repo.",
+    hints = listOf("Take a look at `git submodule`."),
+    commandSuggestions = listOf("git submodule add https://github.com/jackmaney/githug-include-me ./githug-include-me"),
+    setup = { RepoState(initialized = true, branches = mapOf("master" to 0)) },
+    validator = repoPredicate { repo -> repo.submodules["./githug-include-me"] == "https://github.com/jackmaney/githug-include-me" || repo.submodules["githug-include-me"] == "https://github.com/jackmaney/githug-include-me" },
+    testCases = listOf(
+        levelTestCase("add submodule", "git submodule add https://github.com/jackmaney/githug-include-me ./githug-include-me"),
+    ),
+)