diff options
Diffstat (limited to 'bzl_library.bzl')
| -rw-r--r-- | bzl_library.bzl | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/bzl_library.bzl b/bzl_library.bzl index 1b59440..9091894 100644 --- a/bzl_library.bzl +++ b/bzl_library.bzl @@ -26,6 +26,9 @@ StarlarkLibraryInfo = provider( def _bzl_library_impl(ctx): deps_files = [x.files for x in ctx.attr.deps] all_files = depset(ctx.files.srcs, order = "postorder", transitive = deps_files) + if not ctx.files.srcs and not deps_files: + fail("bzl_library rule '%s' has no srcs or deps" % ctx.label) + return [ # All dependent files should be listed in both `files` and in `runfiles`; # this ensures that a `bzl_library` can be referenced as `data` from @@ -46,11 +49,11 @@ bzl_library = rule( implementation = _bzl_library_impl, attrs = { "srcs": attr.label_list( - allow_files = [".bzl"], - doc = "List of `.bzl` files that are processed to create this target.", + allow_files = [".bzl", ".scl"], + doc = "List of `.bzl` and `.scl` files that are processed to create this target.", ), "deps": attr.label_list( - allow_files = [".bzl"], + allow_files = [".bzl", ".scl"], providers = [ [StarlarkLibraryInfo], ], @@ -58,7 +61,7 @@ bzl_library = rule( Starlark files listed in `srcs`.""", ), }, - doc = """Creates a logical collection of Starlark .bzl files. + doc = """Creates a logical collection of Starlark .bzl and .scl files. Example: Suppose your project has the following structure: |