| def _env_impl(rctx): | |
| rctx.file("BUILD.bazel") # So we can refer to the defs.bzl file we're about to create | |
| defs = ["%s = %s" % (k, repr(rctx.os.environ.get(k, "3.8"))) for k in rctx.attr.env_var] | |
| rctx.file("defs.bzl", "\n".join(defs)) | |
| env = repository_rule( | |
| implementation = _env_impl, | |
| attrs = { | |
| "env_var": attr.string_list(), | |
| }, | |
| ) |