load("@bazel_skylib//rules:write_file.bzl", "write_file")
load("//cargo:defs.bzl", "cargo_build_script")
load("//rust:defs.bzl", "rust_library", "rust_test")

write_file(
    name = "generate_rustc_env_file",
    out = "rustc_env_file",
    content = [
        "GREETING=Howdy",
        "",
    ],
)

cargo_build_script(
    name = "cargo_build_script",
    srcs = ["build.rs"],
    edition = "2018",
    rustc_env_files = [":generate_rustc_env_file"],
)

rust_library(
    name = "test_lib",
    srcs = ["test_lib.rs"],
    edition = "2018",
    deps = [":cargo_build_script"],
)

rust_test(
    name = "consume_build_script",
    crate = ":test_lib",
)