Add note on case-sensitivity in Directories. (#50)

1 files changed, 5 insertions, 0 deletions

diff --git a/build/bazel/remote/execution/v2/remote_execution.proto b/build/bazel/remote/execution/v2/remote_execution.proto
index 0499471..80d66dc 100644
--- a/build/bazel/remote/execution/v2/remote_execution.proto
+++ b/build/bazel/remote/execution/v2/remote_execution.proto
@@ -549,6 +549,11 @@ message Platform {
 // * Every child in the directory must have a path of exactly one segment.
 //   Multiple levels of directory hierarchy may not be collapsed.
 // * Each child in the directory must have a unique path segment (file name).
+//   Note that while the API itself is case-sensitive, the environment where
+//   the Action is executed may or may not be case-sensitive. That is, it is
+//   legal to call the API with a Directory that has both "Foo" and "foo" as
+//   children, but the Action may be rejected by the remote system upon
+//   execution.
 // * The files, directories and symlinks in the directory must each be sorted
 //   in lexicographical order by path. The path strings must be sorted by code
 //   point, equivalently, by UTF-8 bytes.