Add note on using a case-sensitive filesystem

Closes google#2783 RELNOTES=n/a PiperOrigin-RevId: 397187722
dmbrechko · Sep 16, 2021 · 85e0f6b · 85e0f6b
1 parent 342f7da
commit 85e0f6b
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -28,6 +28,10 @@ information on using pull requests.
 
 Dagger is built with [`bazel`](https://bazel.build).
 
+Ensure that Dagger is checked out on a case-sensitive filesystem. On a
+case-insensitive file system (e.g. Windows or MacOS by default) some tasks that
+attempt to delete the `build/` folder will also delete the bazel `BUILD` files.
+
 ### Building Dagger from the command line
 
 *   [Install Bazel](https://docs.bazel.build/versions/master/install.html)