# Copyright 2021 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.

# This build definition exists in order to define an allow-list of users of
# the nix third-party crate.  Currently and for the foreseeable future, the
# allow-list is limited to the fuchsia_nix in-tree crate, which selectively
# reexports (and provides test coverage for) those nix interfaces which:
#
# * have a concrete fuchsia use-case
# * have been shown to work on fuchsia
#
# In-tree users of the nix crate must do so indirectly through re-exported
# interfaces in fuchsia_nix. fuchsia_nix exists so that nix interfaces can be
# vetted as appropriate to Fuchsia OS principles, and validated as working on
# Fuchsia. For example, we do not want nix interfaces to POSIX signals to be
# available in-tree because signals do not exist on Fuchsia.

# TODO(https://fxbug.dev/72581) move this to GN config for visibility under
# cfg(fuchsia)
if (is_fuchsia) {
  rust_library("nix") {
    visibility = [ "//src/lib/network/fuchsia_nix" ]

    # The contents of this build defintion are copied from the
    # //third_party/rust_crates/BUILD.gn definition which is generated by
    # cargo-gnaw from //third_party/rust_crates/Cargo.toml.
    #
    # Until https://fxbug.dev/72581 is resolved, this definition must be updated
    # manually as follows:
    #
    # 1. Increment the nix version number in
    #    //third_party/rust_crates/Cargo.toml.
    # 2. Run `fx update-rustc-third-party`.
    # 3. Copy below this comment the contents of the generated
    #    `rust_library("nix-v*")` definition found in
    #    //third_party/rust_crates/BUILD.gn.
    # 4. Run `fx build`.
    # 5. If GN asks for an explicit `sources` value, copy the GN generated value
    #    into the definition.

    crate_name = "nix"
    crate_root = "//third_party/rust_crates/vendor/nix/src/lib.rs"
    output_name = "nix-212f6cb0e58efa58"
    configs -= [
      "//build/config/rust:edition_2018",
      "//build/config/rust:2018_idioms",
    ]

    deps = []
    deps += [ "../..:bitflags-v1_2_1" ]
    deps += [ "../..:cfg-if-v1_0_0" ]
    deps += [ "../..:libc-v0_2_88" ]

    rustenv = []

    rustflags = [
      "--cap-lints=allow",
      "--edition=2018",
      "-Cmetadata=212f6cb0e58efa58",
      "-Cextra-filename=-212f6cb0e58efa58",
    ]
    sources = [
      "//third_party/rust_crates/vendor/nix/src/dir.rs",
      "//third_party/rust_crates/vendor/nix/src/env.rs",
      "//third_party/rust_crates/vendor/nix/src/errno.rs",
      "//third_party/rust_crates/vendor/nix/src/fcntl.rs",
      "//third_party/rust_crates/vendor/nix/src/features.rs",
      "//third_party/rust_crates/vendor/nix/src/lib.rs",
      "//third_party/rust_crates/vendor/nix/src/macros.rs",
      "//third_party/rust_crates/vendor/nix/src/net/if_.rs",
      "//third_party/rust_crates/vendor/nix/src/net/mod.rs",
      "//third_party/rust_crates/vendor/nix/src/poll.rs",
      "//third_party/rust_crates/vendor/nix/src/sched.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/mman.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/mod.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/pthread.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/select.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/signal.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/socket/addr.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/socket/mod.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/socket/sockopt.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/stat.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/statvfs.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/termios.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/time.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/uio.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/utsname.rs",
      "//third_party/rust_crates/vendor/nix/src/sys/wait.rs",
      "//third_party/rust_crates/vendor/nix/src/time.rs",
      "//third_party/rust_crates/vendor/nix/src/unistd.rs",
    ]
  }
}