commit da11a26008818b8bf64aa13709a1ee6b13fc8eba · pyrox.dev/nixpkgs

+39 -10

pkgs/development/tools/rust/bindgen/default.nix

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       { stdenv, fetchFromGitHub, rustPlatform, makeWrapper, llvmPackages }:

     

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       # Future work: Automatically communicate NIX_CFLAGS_COMPILE to bindgen's tests and the bindgen executable itself.

     

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       { stdenv, fetchFromGitHub, fetchpatch, rustPlatform, clang, llvmPackages, rustfmt, writeScriptBin }:

     

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       rustPlatform.buildRustPackage rec {

     

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         name = "rust-bindgen-${version}";

     
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           sha256 = "0cqjr7qspjrfgqcp4nqxljmhhbqyijb2jpw3lajgjj48y6wrnw93";

     

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         };

     

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         nativeBuildInputs = [ makeWrapper ];

     

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         buildInputs = [ llvmPackages.clang-unwrapped.lib ];

     

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         cargoSha256 = "0b8v6c7q1abibzygrigldpd31lyd5ngmj4vq5d7zni96m20mm85w";

     

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         libclang = llvmPackages.libclang.lib; #for substituteAll

     

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         buildInputs = [ libclang ];

     

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         propagatedBuildInputs = [ clang ]; # to populate NIX_CXXSTDLIB_COMPILE

     

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         patches = [

     

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           # https://github.com/rust-lang-nursery/rust-bindgen/pull/1376

     

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           (fetchpatch {

     

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             url = https://github.com/rust-lang-nursery/rust-bindgen/commit/c8b5406f08af82a92bf8faf852c21ba941d9c176.patch;

     

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             sha256 = "16ibr2rplh0qz8rsq6gir45xlz5nasad4y8fprwhrb7ssv8wfkss";

     

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           })

     

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         ];

     

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         configurePhase = ''

     

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           export LIBCLANG_PATH="${llvmPackages.clang-unwrapped.lib}/lib"

     

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           export LIBCLANG_PATH="${libclang}/lib"

     

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         '';

     

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         postInstall = ''

     

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           wrapProgram $out/bin/bindgen --set LIBCLANG_PATH "${llvmPackages.clang-unwrapped.lib}/lib"

     

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           mv $out/bin/{bindgen,.bindgen-wrapped};

     

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           substituteAll ${./wrapper.sh} $out/bin/bindgen

     

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           chmod +x $out/bin/bindgen

     

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         '';

     

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         cargoSha256 = "0b8v6c7q1abibzygrigldpd31lyd5ngmj4vq5d7zni96m20mm85w";

     

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         doCheck = false; # A test fails because it can't find standard headers in NixOS

     

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         doCheck = false; # half the tests fail because our rustfmt is not nightly enough

     

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         checkInputs =

     

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           let fakeRustup = writeScriptBin "rustup" ''

     

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             #!${stdenv.shell}

     

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             shift

     

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             shift

     

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             exec "$@"

     

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           '';

     

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         in [

     

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           rustfmt

     

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           fakeRustup # the test suite insists in calling `rustup run nightly rustfmt`

     

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           clang

     

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         ];

     

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         meta = with stdenv.lib; {

     

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           description = "C and C++ binding generator";

     

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           longDescription = ''

     

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             Bindgen takes a c or c++ header file and turns them into

     

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             rust ffi declarations.

     

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             As with most compiler related software, this will only work

     

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             inside a nix-shell with the required libraries as buildInputs.

     

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           '';

     

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           homepage = https://github.com/rust-lang-nursery/rust-bindgen;

     

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           license = with licenses; [ bsd3 ];

     

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           maintainers = [ maintainers.ralith ];

+36

pkgs/development/tools/rust/bindgen/wrapper.sh

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       #!/usr/bin/env bash

     

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       sep='--'   # whether to add -- before new options

     

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       cxx=0      # whether cxx was explicitly requested

     

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       lastWasx=0 # whether the last argument passed was -x

     

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       for e in "$@"; do

     

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         if [[ "$e" == "--" ]]; then

     

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           sep=

     

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         fi;

     

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         if [[ "$sep" == "" ]]; then

     

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           # we look for -x c++ after -- only

     

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           if [[ "$e" == "-x" ]]; then

     

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             lastWasx=1

     

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           fi;

     

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           if [[ $lastWasx -eq 1 && "$e" == "c++" ]]; then

     

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             lastWasx=0

     

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             cxx=1

     

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           fi;

     

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           if [[ "$e" == "-xc++" || "$e" == -std=c++* ]]; then

     

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             cxx=1

     

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           fi;

     

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         fi;

     

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       done;

     

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       cxxflags=

     

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       if [[ $cxx -eq 1 ]]; then

     

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         cxxflags=$NIX_CXXSTDLIB_COMPILE

     

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       fi;

     

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       if [[ -n "$NIX_DEBUG" ]]; then

     

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         set -x;

     

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       fi;

     

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       export LIBCLANG_PATH="@libclang@/lib"

     

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       # shellcheck disable=SC2086

     

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       # cxxflags and NIX_CFLAGS_COMPILE should be word-split

     

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       exec -a "$0" @out@/bin/.bindgen-wrapped "$@" $sep $cxxflags $NIX_CFLAGS_COMPILE

     

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       # note that we add the flags after $@ which is incorrect. This is only for the sake

     

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       # of simplicity.

     

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