o1-labs/graphql_ppx

GraphQL PPX rewriter for Bucklescript/ReasonML

graphql_ppx's Issues

Bazel: make schema json file access workspace-independent

Schema file access needs to be workspace-independent. Currently the logic is sensitive to whether the reference is from an external repo or not. For example, for tests_native the schema file is //tests_native/graphql_schema.json, and our build rules look like this:

GRAPHQL_SCHEMA_FILE = "graphql_schema.json"
GRAPHQL_SCHEMA_PATH = "tests_native/" + GRAPHQL_SCHEMA_FILE
# GRAPHQL_SCHEMA_PATH = "external/graphql_ppx/tests_native/" + GRAPHQL_SCHEMA_FILE
GRAPHQL_SCHEMA_JSON = "//tests_native:" + GRAPHQL_SCHEMA_FILE
...
ocaml_module(
    name = "_Arg_named_query",
    src = "arg_named_query.ml",
    opts = GRAPHQL_PPX_TEST_MODULE_OPTS,
    ppx = ":ppx1.exe",
    ppx_args = [
        "-schema", GRAPHQL_SCHEMA_PATH
    ],
    ppx_data = [GRAPHQL_SCHEMA_JSON],
    deps = GRAPHQL_PPX_TEST_DEPS + [
        # do not sort (buildifier)
        ":_Test_shared",
    ],
)

To build this in "standalone mode" (i.e. from the graphql_ppx root dir) the first GRAPHQL_SCHEMA_PATH must be used. But if this repo is imported, as it is for Mina, then the second path must be used, which accounts for the way Bazel sets things up internally for external repos.

So the task is to figure out a way to refer to the schema files that is independent of such Bazel implementation details.