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🦀🔐 Statically prevent deadlocks crates.io/crates/surelock
typesafe utility deadlock-freedom library
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203{ description = "surelock — no_std deadlock-free locks for Rust";
inputs = { nixpkgs.url = "nixpkgs/nixos-25.11";
command-utils.url = "git+https://codeberg.org/expede/nix-command-utils"; flake-utils.url = "github:numtide/flake-utils";
rust-overlay = { url = "github:oxalica/rust-overlay"; inputs.nixpkgs.follows = "nixpkgs"; }; };
outputs = { self, flake-utils, nixpkgs, rust-overlay, command-utils, } @ inputs: flake-utils.lib.eachDefaultSystem ( system: let overlays = [ (import rust-overlay) ];
pkgs = import nixpkgs { inherit system overlays; };
rustVersion = "1.90.0";
rust-toolchain = (pkgs.rust-bin.stable.${rustVersion}.default.override { extensions = [ "cargo" "clippy" "llvm-tools-preview" "rust-src" "rust-std" "rustfmt" ];
targets = [ "aarch64-apple-darwin" "x86_64-apple-darwin"
"x86_64-unknown-linux-musl" "aarch64-unknown-linux-musl"
"wasm32-unknown-unknown" "thumbv6m-none-eabi" ]; }).overrideAttrs (old: { meta = (old.meta or {}) // {mainProgram = "cargo";}; });
# Nightly rustfmt for unstable formatting options (imports_granularity, etc.) # We need a combined nightly toolchain (rustc + rustfmt) because rustfmt # links against librustc_driver, which lives in the rustc component. # On macOS, symlinks break @rpath resolution, so we wrap the binary # with DYLD_LIBRARY_PATH pointing to the combined toolchain's lib/. nightly-rustfmt-unwrapped = pkgs.rust-bin.nightly.latest.minimal.override { extensions = ["rustfmt"]; };
nightly-rustfmt = pkgs.writeShellScriptBin "rustfmt" '' export DYLD_LIBRARY_PATH="${nightly-rustfmt-unwrapped}/lib''${DYLD_LIBRARY_PATH:+:$DYLD_LIBRARY_PATH}" export LD_LIBRARY_PATH="${nightly-rustfmt-unwrapped}/lib''${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}" exec "${nightly-rustfmt-unwrapped}/bin/rustfmt" "$@" '';
format-pkgs = with pkgs; [ alejandra nixpkgs-fmt taplo ];
cargo-installs = with pkgs; [ cargo-criterion cargo-deny cargo-expand cargo-hack cargo-nextest cargo-semver-checks cargo-sort cargo-watch typos ];
# Built-in command modules from nix-command-utils rust = command-utils.rust.${system}; cmd = command-utils.cmd.${system}; asModule = command-utils.asModule.${system};
# Project-specific commands projectCommands = import ./nix/commands.nix { inherit pkgs system cmd; };
command_menu = command-utils.commands.${system} [ (rust.build {cargo = rust-toolchain;}) (rust.test { cargo = rust-toolchain; cargo-watch = pkgs.cargo-watch; }) (rust.lint {cargo = rust-toolchain;}) (rust.fmt {cargo = rust-toolchain;}) (rust.doc {cargo = rust-toolchain;}) (rust.bench { cargo = rust-toolchain; cargo-criterion = pkgs.cargo-criterion; xdg-open = pkgs.xdg-utils; }) (rust.watch {cargo-watch = pkgs.cargo-watch;}) (rust.audit {cargo-audit = pkgs.cargo-audit;}) (rust.semver {cargo-semver-checks = pkgs.cargo-semver-checks;}) (rust.ci {cargo = rust-toolchain;})
# Project-specific commands (asModule projectCommands) ];
# Minimal CI toolchain — no llvm-tools, no rust-src, fewer targets ci-rust-toolchain = (pkgs.rust-bin.stable.${rustVersion}.default.override { extensions = [ "cargo" "clippy" "rustfmt" ];
targets = [ "wasm32-unknown-unknown" "thumbv6m-none-eabi" ]; }).overrideAttrs (old: { meta = (old.meta or {}) // {mainProgram = "cargo";}; });
# Stub so tools that probe for rustup (e.g. cargo-semver-checks) # silently succeed instead of failing with "No such file or directory". rustup-shim = pkgs.writeShellScriptBin "rustup" '' if [ "$1" = "--version" ]; then echo "rustup-nix-shim" elif [ "$1" = "toolchain" ]; then exit 0 elif [ "$1" = "which" ]; then command -v "$2" 2>/dev/null || echo "$2" else exit 0 fi '';
ci-cargo-installs = with pkgs; [ cargo-deny cargo-hack cargo-semver-checks typos ]; in rec { devShells.default = pkgs.mkShell { name = "surelock_shell";
nativeBuildInputs = [ command_menu rust-toolchain nightly-rustfmt
pkgs.rust-analyzer ] ++ format-pkgs ++ cargo-installs ++ pkgs.lib.optionals pkgs.stdenv.isLinux [ pkgs.clang pkgs.llvmPackages.libclang ];
shellHook = '' unset SOURCE_DATE_EPOCH export WORKSPACE_ROOT="$(pwd)" export RUSTFMT="${nightly-rustfmt}/bin/rustfmt" menu ''; };
devShells.ci = pkgs.mkShell { name = "surelock_ci";
nativeBuildInputs = [ ci-rust-toolchain rustup-shim ] ++ ci-cargo-installs; };
formatter = pkgs.alejandra; } );}