Add TensorFlow deps to bazel build, allowing us to pull in RUY and LLVM/MLIR snapshots.
Long term, we'd like to sever these dependencies, but that is going to take a while.
This gets the iree/hal/... package building. Next up is compiler/... which needs the glslang dep added.
PiperOrigin-RevId: 274040448
diff --git a/repo_utils.bzl b/repo_utils.bzl
new file mode 100644
index 0000000..9f6b997
--- /dev/null
+++ b/repo_utils.bzl
@@ -0,0 +1,15 @@
+# TODO(laurenzo): This is available upstream as of 0.28. Remove when ready.
+# See: https://docs.bazel.build/versions/master/repo/utils.html#maybe
+def maybe(repo_rule, name, **kwargs):
+ """Utility function for only adding a repository if it's not already present.
+ This is to implement safe repositories.bzl macro documented in
+ https://docs.bazel.build/versions/master/skylark/deploying.html#dependencies.
+ Args:
+ repo_rule: repository rule function.
+ name: name of the repository to create.
+ **kwargs: remaining arguments that are passed to the repo_rule function.
+ Returns:
+ Nothing, defines the repository when needed as a side-effect.
+ """
+ if not native.existing_rule(name):
+ repo_rule(name = name, **kwargs)
