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flake.nix
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flake.nix
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{
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
crane = {
url = "github:ipetkov/crane";
inputs.nixpkgs.follows = "nixpkgs";
};
dfinity-sdk = {
url = "github:paulyoung/nixpkgs-dfinity-sdk?rev=28bb54dc1912cd723dc15f427b67c5309cfe851e";
flake = false;
};
flake-utils.url = "github:numtide/flake-utils";
ic-repl-src = {
url = "github:chenyan2002/ic-repl";
flake = false;
};
rust-overlay = {
url = "github:oxalica/rust-overlay";
inputs = {
nixpkgs.follows = "nixpkgs";
flake-utils.follows = "flake-utils";
};
};
};
outputs = {
self,
nixpkgs,
crane,
dfinity-sdk,
flake-utils,
ic-repl-src,
rust-overlay,
}:
let
supportedSystems = [
flake-utils.lib.system.aarch64-darwin
flake-utils.lib.system.x86_64-darwin
];
in
flake-utils.lib.eachSystem supportedSystems (system:
let
pkgs = import nixpkgs {
inherit system;
overlays = [
(final: prev: (import dfinity-sdk) final prev)
(import rust-overlay)
];
};
dfinitySdk = (pkgs.dfinity-sdk {
acceptLicenseAgreement = true;
sdkSystem = system;
}).makeVersion {
systems = {
"x86_64-darwin" = {
sha256 = "sha256-HZ6CZijd4PAAagVoRgxtSkVPwwT1jpPKvghBwwlz3Vw=";
};
};
version = "0.12.1";
};
rust = pkgs.rust-bin.stable.latest.default;
# rust = pkgs.rust-bin.nightly."2022-06-01".default;
# NB: we don't need to overlay our custom toolchain for the *entire*
# pkgs (which would require rebuilding anything else which uses rust).
# Instead, we just want to update the scope that crane will use by
# appending our specific toolchain there.
craneLib = (crane.mkLib pkgs).overrideToolchain rust;
# craneLib = crane.lib."${system}";
cdk-swift-build = pkgs.writeShellApplication {
name = "cdk-swift-build";
runtimeInputs = [
ic-wasm
pkgs.gnused
swift-wasm
wasm-snip-wasi
];
text = ''
BUILD_DIR=.build/release
swift-wasm build -c release -Xswiftc -Osize
# TODO: use walrus crate instead of wat and sed
wasm2wat "$BUILD_DIR/$1.wasm" --generate-names --output "$BUILD_DIR/$1.wat"
sed --in-place --null-data --regexp-extended "s/(call \\\$(_start|__wasilibc_populate_preopens|__stdio_exit|_GLOBAL__sub_I_GlobalObjects.cpp))/(; \1 ;)/g" "$BUILD_DIR/$1.wat"
sed --in-place --null-data --regexp-extended "s/(call \\\$(__imported_wasi_snapshot_preview1_environ_sizes_get|__imported_wasi_snapshot_preview1_environ_get))/(; \1 ;)\n drop\n drop\n i32.const 0/g" "$BUILD_DIR/$1.wat"
sed --in-place --null-data --regexp-extended "s/\(export \"(_start|memory)\"[^\n]+/\(; \0 ;\)/gm" "$BUILD_DIR/$1.wat"
sed --in-place --null-data --regexp-extended "s/(i32\.const 71\n\s+)(call \\\$_Exit\n\s+unreachable)(\n?\s*\))/\1\(; \2 ;\)\3/g" "$BUILD_DIR/$1.wat"
sed --in-place --null-data --regexp-extended "s/(call \\\$(_Exit|__wasi_proc_exit|__imported_wasi_snapshot_preview1_proc_exit)\n\s+)(unreachable)(\n?\s*\))/\1\(; \3 ;\)\4/g" "$BUILD_DIR/$1.wat"
wat2wasm "$BUILD_DIR/$1.wat" --debug-names --output "$BUILD_DIR/$1.wasm"
# Stack traces (at least in the browser) are much nicer without
# any of the post-processing that follows.
wasm-snip-wasi "$BUILD_DIR/$1.wasm" --output "$BUILD_DIR/$1.wasm"
ic-wasm --output "$BUILD_DIR/$1.wasm" "$BUILD_DIR/$1.wasm" shrink
wasm2wat "$BUILD_DIR/$1.wasm" --generate-names --output "$BUILD_DIR/$1.snipped.wat"
gzip --to-stdout --best "$BUILD_DIR/$1.wasm" > "$BUILD_DIR/$1.wasm.gz"
'';
};
ic-repl = craneLib.buildPackage {
src = ic-repl-src;
nativeBuildInputs = [
pkgs.libiconv
# https://nixos.wiki/wiki/Rust#Building_the_openssl-sys_crate
pkgs.openssl_1_1
pkgs.pkgconfig
] ++ pkgs.lib.optionals pkgs.stdenv.isDarwin [
pkgs.darwin.apple_sdk.frameworks.Security
];
};
ic-wasm = craneLib.buildPackage {
src = pkgs.stdenv.mkDerivation {
name = "ic-wasm-src";
src = pkgs.fetchFromGitHub {
owner = "dfinity";
repo = "ic-wasm";
rev = "2e876e84953e24e6a1820aa524f228c8edea4307";
sha256 = "sha256-0E7Qa0tOtFwV6pkZsjvkGE2TGaj/30+JSlNGtiU0xYo=";
};
installPhase = ''
cp -R --preserve=mode,timestamps . $out
'';
};
doCheck = false;
nativeBuildInputs = [
pkgs.libiconv
];
};
swift-wasm = pkgs.writeShellApplication {
name = "swift-wasm";
runtimeInputs = [];
text = ''
swift "$@" --triple wasm32-unknown-wasi
'';
};
wasm-snip = craneLib.buildPackage {
src = pkgs.stdenv.mkDerivation {
name = "wasm-snip-src";
src = pkgs.fetchCrate {
pname = "wasm-snip";
version = "0.4.0";
sha256 = "sha256-+oThqcy3H4/s2T+Uw0V/nnVzx7SW5xPghbaJxoub7yc=";
};
installPhase = ''
cp -R --preserve=mode,timestamps . $out
'';
};
doCheck = false;
nativeBuildInputs = [
pkgs.libiconv
];
};
# wasm-snip-wasi input.wasm --output output.wasm
wasm-snip-wasi = pkgs.runCommand "wasm-snip-wasi" {
buildInputs = [
pkgs.makeWrapper
];
} ''
makeWrapper ${wasm-snip}/bin/wasm-snip $out/bin/wasm-snip-wasi \
--append-flags "\
__exported_start \
__imported_wasi_snapshot_preview1_args_get \
__imported_wasi_snapshot_preview1_args_sizes_get \
__imported_wasi_snapshot_preview1_clock_res_get \
__imported_wasi_snapshot_preview1_clock_time_get \
__imported_wasi_snapshot_preview1_environ_get \
__imported_wasi_snapshot_preview1_environ_sizes_get \
__imported_wasi_snapshot_preview1_fd_advise \
__imported_wasi_snapshot_preview1_fd_allocate \
__imported_wasi_snapshot_preview1_fd_close \
__imported_wasi_snapshot_preview1_fd_datasync \
__imported_wasi_snapshot_preview1_fd_fdstat_get \
__imported_wasi_snapshot_preview1_fd_fdstat_set_flags \
__imported_wasi_snapshot_preview1_fd_fdstat_set_rights \
__imported_wasi_snapshot_preview1_fd_filestat_get \
__imported_wasi_snapshot_preview1_fd_filestat_set_size \
__imported_wasi_snapshot_preview1_fd_filestat_set_times \
__imported_wasi_snapshot_preview1_fd_pread \
__imported_wasi_snapshot_preview1_fd_prestat_dir_name \
__imported_wasi_snapshot_preview1_fd_prestat_get \
__imported_wasi_snapshot_preview1_fd_pwrite \
__imported_wasi_snapshot_preview1_fd_read \
__imported_wasi_snapshot_preview1_fd_readdir \
__imported_wasi_snapshot_preview1_fd_renumber \
__imported_wasi_snapshot_preview1_fd_seek \
__imported_wasi_snapshot_preview1_fd_sync \
__imported_wasi_snapshot_preview1_fd_tell \
__imported_wasi_snapshot_preview1_fd_write \
__imported_wasi_snapshot_preview1_path_create_directory \
__imported_wasi_snapshot_preview1_path_filestat_get \
__imported_wasi_snapshot_preview1_path_filestat_set_times \
__imported_wasi_snapshot_preview1_path_link \
__imported_wasi_snapshot_preview1_path_open \
__imported_wasi_snapshot_preview1_path_readlink \
__imported_wasi_snapshot_preview1_path_remove_directory \
__imported_wasi_snapshot_preview1_path_rename \
__imported_wasi_snapshot_preview1_path_symlink \
__imported_wasi_snapshot_preview1_path_unlink_file \
__imported_wasi_snapshot_preview1_poll_oneoff \
__imported_wasi_snapshot_preview1_proc_exit \
__imported_wasi_snapshot_preview1_proc_raise \
__imported_wasi_snapshot_preview1_random_get \
__imported_wasi_snapshot_preview1_sched_yield \
__imported_wasi_snapshot_preview1_sock_recv \
__imported_wasi_snapshot_preview1_sock_send \
__imported_wasi_snapshot_preview1_sock_shutdown \
"
'';
in
{
checks = {
# inherit ;
};
apps = {
# inherit ;
};
packages = {
# inherit ;
};
# defaultPackage = ;
devShell = pkgs.mkShell {
inputsFrom = builtins.attrValues self.checks;
nativeBuildInputs = [
cdk-swift-build
dfinitySdk
ic-wasm
pkgs.wabt
swift-wasm
wasm-snip-wasi
];
shellHook = ''
export PATH=/Library/Developer/Toolchains/swift-wasm-5.6.0-RELEASE.xctoolchain/usr/bin:"$PATH";
'';
};
}
);
}