third_party/rust_crates/BUILD.gn

# Copyright 2018 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/config/clang/clang.gni")
import("//build/rust/rustc_artifact.gni") # for rustc_third_party_artifact
import("//build/rust/config.gni") # for rust_build_{args,deps,inputs}

third_party_lock = "//third_party/rust_crates/Cargo.lock"
third_party_toml = "//third_party/rust_crates/Cargo.toml"

fuchsia_cprng_dir = "//garnet/public/rust/fuchsia-cprng"

fuchsia_cprng_src = exec_script(
  "//build/rust/list_files_in_dir.py",
  ["--dir", rebase_path("${fuchsia_cprng_dir}/src")],
  "list lines",
  # lib.rs will contain `mod` statements for all top-level files
  [rebase_path("${fuchsia_cprng_dir}/src/lib.rs")]
)

third_party_crate_names = exec_script(
  "//build/rust/list_3p_crates.py",
  [
    "--cargo-toml", rebase_path(third_party_toml),
  ],
  "list lines",
  [third_party_toml]
)

foreach(crate_name, third_party_crate_names) {
  rustc_third_party_artifact(crate_name) {
    crate_name = crate_name
  }
}

# This target is implicitly depended upon by every
# rustc_artifact (rustc_binary or rustc_library) target
action("build-third-party") {
  script = "//build/rust/compile_3p_crates.py"

  inputs = [ third_party_lock, third_party_toml ]
  inputs += fuchsia_cprng_src

  out_dir = "${root_out_dir}/rust_third_party_crates"
  out_deps_data = "${out_dir}/deps_data.json"
  args = [
    "--cargo", rebase_path("${rustc_prefix}/cargo"),
    "--crate-root", rebase_path("//third_party/rust_crates"),
    "--out-dir", rebase_path(out_dir),
    "--out-deps-data", rebase_path(out_deps_data),
  ]

  args += rust_build_args
  deps = rust_build_deps
  inputs += rust_build_inputs

  outputs = [ out_deps_data ]
}