build(nix): configure flake for dcr project

- Set package name/version from Cargo.toml (dcr 0.6.9) - Add cmake and perl for vendored libgit2/openssl builds - Switch to stable toolchain (complete was overkill) - Generate flake.lock
2026-10-21 11:48:36 +00:00 · 2026-05-31 22:37:57 +03:00
parent ea1546b13a
commit 772d50811f
2 changed files with 247 additions and 0 deletions
--- a/flake.lock
+++ b/flake.lock
@@ -0,0 +1,135 @@
+{
+  "nodes": {
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1780218205,
+        "narHash": "sha256-c4MSlBQw5MIDRkad9UNUUnBaOHAHnhuCXrDt90FDVrg=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "96e0fc9f1a9b37f6477fa11c3fd48575354773ed",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1779560665,
+        "narHash": "sha256-tpyBcxPpcQb8ukyNF7DoCwfSY3VPsxHoYwj00Cayv5o=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "64c08a7ca051951c8eae34e3e3cb1e202fe36786",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1770107345,
+        "narHash": "sha256-tbS0Ebx2PiA1FRW8mt8oejR0qMXmziJmPaU1d4kYY9g=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "4533d9293756b63904b7238acb84ac8fe4c8c2c4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "fenix": "fenix",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "treefmt-nix": "treefmt-nix"
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1780179631,
+        "narHash": "sha256-61A3gj4V1DyPP6lVHTdui4+dvG66pkMZSMd1Kke3Rz8=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "cce33f2f1565958787bb763ae751a6a5f56b95e3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "treefmt-nix": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1780220602,
+        "narHash": "sha256-eynAfOmbmxJnkp7YewvCEbShNnnYJ9gLLqkzsYtBPeM=",
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "rev": "db947814a175b7ca6ded66e21383d938df01c227",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
--- a/flake.nix
+++ b/flake.nix
@@ -0,0 +1,112 @@
+{
+  description = "DCR — Cargo-like utility for managing C/C++ projects";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+
+    flake-utils.url = "github:numtide/flake-utils";
+
+    treefmt-nix.url = "github:numtide/treefmt-nix";
+
+    fenix = {
+      url = "github:nix-community/fenix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+    treefmt-nix,
+    fenix,
+  }:
+    flake-utils.lib.eachDefaultSystem (system: let
+      pkgs = import nixpkgs {
+        inherit system;
+      };
+
+      packageName = "dcr";
+
+      rustToolchain = fenix.packages.${system}.stable.toolchain;
+
+      rustPlatform = pkgs.makeRustPlatform {
+        cargo = rustToolchain;
+        rustc = rustToolchain;
+      };
+
+      treefmtEval = treefmt-nix.lib.evalModule pkgs {
+        projectRootFile = "flake.nix";
+
+        programs.alejandra.enable = true;
+        programs.rustfmt.enable = true;
+        programs.taplo.enable = true;
+      };
+
+      app = rustPlatform.buildRustPackage {
+        pname = packageName;
+        version = "0.6.9";
+
+        src = ./.;
+
+        cargoLock.lockFile = ./Cargo.lock;
+
+        nativeBuildInputs = [
+          pkgs.pkg-config
+          pkgs.cmake
+          pkgs.perl
+        ];
+
+        buildInputs = pkgs.lib.optionals pkgs.stdenv.isDarwin [
+          pkgs.darwin.apple_sdk.frameworks.Security
+          pkgs.darwin.apple_sdk.frameworks.SystemConfiguration
+        ];
+
+        # Tests require external services; run separately.
+        doCheck = false;
+      };
+    in {
+      packages = {
+        default = app;
+        dcr = app;
+      };
+
+      apps = let
+        defaultApp =
+          (flake-utils.lib.mkApp {
+            drv = app;
+          })
+          // {
+            meta.description = "Run ${packageName}";
+          };
+      in {
+        default = defaultApp;
+        dcr = defaultApp;
+      };
+
+      checks = {
+        dcr = app;
+        formatting = treefmtEval.config.build.check self;
+      };
+
+      formatter = treefmtEval.config.build.wrapper;
+
+      devShells.default = pkgs.mkShell {
+        inputsFrom = [app];
+
+        packages = [
+          rustToolchain
+
+          pkgs.rust-analyzer
+          pkgs.just
+          pkgs.podman-compose
+
+          treefmtEval.config.build.wrapper
+        ];
+
+        shellHook = ''
+          export RUST_SRC_PATH="${rustToolchain}/lib/rustlib/src/rust/library"
+        '';
+      };
+    });
+}