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helix/flake.nix

198 lines
5.9 KiB
Nix

{
description = "A post-modern text editor.";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
flake-utils.url = "github:numtide/flake-utils";
rust-overlay = {
url = "github:oxalica/rust-overlay";
inputs = {
nixpkgs.follows = "nixpkgs";
flake-utils.follows = "flake-utils";
};
};
crane = {
url = "github:ipetkov/crane";
inputs.rust-overlay.follows = "rust-overlay";
inputs.flake-utils.follows = "flake-utils";
inputs.nixpkgs.follows = "nixpkgs";
};
};
outputs = {
self,
nixpkgs,
crane,
flake-utils,
rust-overlay,
...
}:
flake-utils.lib.eachDefaultSystem (system: let
pkgs = import nixpkgs {
inherit system;
overlays = [(import rust-overlay)];
};
mkRootPath = rel:
builtins.path {
path = "${toString ./.}/${rel}";
name = rel;
};
filteredSource = let
pathsToIgnore = [
".envrc"
".ignore"
".github"
".gitignore"
"logo.svg"
"logo_dark.svg"
"logo_light.svg"
"rust-toolchain.toml"
"rustfmt.toml"
"runtime"
"screenshot.png"
"book"
"contrib"
"docs"
"README.md"
"CHANGELOG.md"
"shell.nix"
"default.nix"
"grammars.nix"
"flake.nix"
"flake.lock"
];
ignorePaths = path: type: let
inherit (nixpkgs) lib;
# split the nix store path into its components
components = lib.splitString "/" path;
# drop off the `/nix/hash-source` section from the path
relPathComponents = lib.drop 4 components;
# reassemble the path components
relPath = lib.concatStringsSep "/" relPathComponents;
in
lib.all (p: ! (lib.hasPrefix p relPath)) pathsToIgnore;
in
builtins.path {
name = "helix-source";
path = toString ./.;
# filter out unnecessary paths
filter = ignorePaths;
};
makeOverridableHelix = old: config: let
grammars = pkgs.callPackage ./grammars.nix config;
runtimeDir = pkgs.runCommand "helix-runtime" {} ''
mkdir -p $out
ln -s ${mkRootPath "runtime"}/* $out
rm -r $out/grammars
ln -s ${grammars} $out/grammars
'';
helix-wrapped =
pkgs.runCommand
old.name
{
inherit (old) pname version;
meta = old.meta or {};
passthru =
(old.passthru or {})
// {
unwrapped = old;
};
nativeBuildInputs = [pkgs.makeWrapper];
makeWrapperArgs = config.makeWrapperArgs or [];
}
''
cp -rs --no-preserve=mode,ownership ${old} $out
wrapProgram "$out/bin/hx" ''${makeWrapperArgs[@]} --set HELIX_RUNTIME "${runtimeDir}"
'';
in
helix-wrapped
// {
override = makeOverridableHelix old;
passthru =
helix-wrapped.passthru
// {
wrapper = old: makeOverridableHelix old config;
};
};
stdenv =
if pkgs.stdenv.isLinux
then pkgs.stdenv
else pkgs.clangStdenv;
rustFlagsEnv =
if stdenv.isLinux
then ''$RUSTFLAGS -C link-arg=-fuse-ld=lld -C target-cpu=native -Clink-arg=-Wl,--no-rosegment''
else "$RUSTFLAGS";
rustToolchain = pkgs.pkgsBuildHost.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
craneLib = (crane.mkLib pkgs).overrideToolchain rustToolchain;
commonArgs =
{
inherit stdenv;
src = filteredSource;
# disable fetching and building of tree-sitter grammars in the helix-term build.rs
HELIX_DISABLE_AUTO_GRAMMAR_BUILD = "1";
buildInputs = [stdenv.cc.cc.lib];
# disable tests
doCheck = false;
meta.mainProgram = "hx";
}
// craneLib.crateNameFromCargoToml {cargoToml = ./helix-term/Cargo.toml;};
cargoArtifacts = craneLib.buildDepsOnly commonArgs;
in {
packages = {
helix-unwrapped = craneLib.buildPackage (commonArgs
// {
inherit cargoArtifacts;
});
helix = makeOverridableHelix self.packages.${system}.helix-unwrapped {};
default = self.packages.${system}.helix;
};
checks = {
# Build the crate itself
inherit (self.packages.${system}) helix;
clippy = craneLib.cargoClippy (commonArgs
// {
inherit cargoArtifacts;
cargoClippyExtraArgs = "--all-targets -- --deny warnings";
});
fmt = craneLib.cargoFmt commonArgs;
doc = craneLib.cargoDoc (commonArgs
// {
inherit cargoArtifacts;
});
test = craneLib.cargoTest (commonArgs
// {
inherit cargoArtifacts;
});
};
devShells.default = pkgs.mkShell {
inputsFrom = builtins.attrValues self.checks.${system};
nativeBuildInputs = with pkgs;
[lld_13 cargo-flamegraph rust-analyzer]
++ (lib.optional (stdenv.isx86_64 && stdenv.isLinux) pkgs.cargo-tarpaulin)
++ (lib.optional stdenv.isLinux pkgs.lldb)
++ (lib.optional stdenv.isDarwin pkgs.darwin.apple_sdk.frameworks.CoreFoundation);
shellHook = ''
export HELIX_RUNTIME="$PWD/runtime"
export RUST_BACKTRACE="1"
export RUSTFLAGS="${rustFlagsEnv}"
'';
};
})
// {
overlays.default = final: prev: {
inherit (self.packages.${final.system}) helix;
};
};
nixConfig = {
extra-substituters = ["https://helix.cachix.org"];
extra-trusted-public-keys = ["helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="];
};
}