1 files changed, 37 insertions, 0 deletions

diff --git a/packages/create-turbo/src/utils/isFolderEmpty.ts b/packages/create-turbo/src/utils/isFolderEmpty.ts
new file mode 100644
index 0000000..4de2d58
--- /dev/null
+++ b/packages/create-turbo/src/utils/isFolderEmpty.ts
@@ -0,0 +1,37 @@
+import fs from "fs-extra";
+
+const VALID_FILES = [
+  ".DS_Store",
+  ".git",
+  ".gitattributes",
+  ".gitignore",
+  ".gitlab-ci.yml",
+  ".hg",
+  ".hgcheck",
+  ".hgignore",
+  ".idea",
+  ".npmignore",
+  ".travis.yml",
+  "LICENSE",
+  "Thumbs.db",
+  "docs",
+  "mkdocs.yml",
+  "npm-debug.log",
+  "yarn-debug.log",
+  "yarn-error.log",
+  "yarnrc.yml",
+  ".yarn",
+];
+
+export function isFolderEmpty(root: string): {
+  isEmpty: boolean;
+  conflicts: Array<string>;
+} {
+  const conflicts = fs
+    .readdirSync(root)
+    .filter((file) => !VALID_FILES.includes(file))
+    // Support IntelliJ IDEA-based editors
+    .filter((file) => !/\.iml$/.test(file));
+
+  return { isEmpty: conflicts.length === 0, conflicts };
+}