Initial commit of an empty crate which can be built as a flake

.gitignore

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+/target
+/result

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "bespoke"
+version = "0.1.0"

Cargo.toml

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+[package]
+name = "bespoke"
+description = "bespoke webservices for personal use"
+homepage = "vvn.space"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

default.nix

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+# default.nix
+{ lib
+, naersk
+, stdenv
+, clangStdenv
+, hostPlatform
+, targetPlatform
+, pkg-config
+, libiconv
+, rustfmt
+, cargo
+, rustc
+  # , llvmPackages # Optional
+  # , protobuf     # Optional
+}:
+
+let
+  cargoToml = (builtins.fromTOML (builtins.readFile ./Cargo.toml));
+in
+
+naersk.lib."${targetPlatform.system}".buildPackage rec {
+  src = ./.;
+
+  buildInputs = [
+    rustfmt
+    pkg-config
+    cargo
+    rustc
+    libiconv
+  ];
+  checkInputs = [ cargo rustc ];
+
+  doCheck = true;
+  CARGO_BUILD_INCREMENTAL = "false";
+  RUST_BACKTRACE = "full";
+  copyLibs = true;
+
+  # Optional things you might need:
+  #
+  # If you depend on `libclang`:
+  # LIBCLANG_PATH = "${llvmPackages.libclang}/lib";
+  #
+  # If you depend on protobuf:
+  # PROTOC = "${protobuf}/bin/protoc";
+  # PROTOC_INCLUDE = "${protobuf}/include";
+
+  name = cargoToml.package.name;
+  version = cargoToml.package.version;
+
+  meta = with lib; {
+    description = cargoToml.package.description;
+    homepage = cargoToml.package.homepage;
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ ];
+  };
+}
+
+

flake.lock

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+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1659877975,
+        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "locked": {
+        "lastModified": 1656928814,
+        "narHash": "sha256-RIFfgBuKz6Hp89yRr7+NR5tzIAbn52h8vT6vXkYjZoM=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "7e2a3b3dfd9af950a856d66b0a7d01e3c18aa249",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "naersk": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1662220400,
+        "narHash": "sha256-9o2OGQqu4xyLZP9K6kNe1pTHnyPz0Wr3raGYnr9AIgY=",
+        "owner": "nmattia",
+        "repo": "naersk",
+        "rev": "6944160c19cb591eb85bbf9b2f2768a935623ed3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nmattia",
+        "repo": "naersk",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1664556388,
+        "narHash": "sha256-04xEtpc0AqLhgDtJ/kT+aZGPrXOI+1a3obf6iWrJQXs=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "511213e0ece88be30a4bd73488f7d1cd85879654",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1664538465,
+        "narHash": "sha256-EnlC7dDKX7X1wlnXkB1gmn9rBZQ0J9+biVTZHw//8us=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "10ecda252ce1b3b1d6403caeadbcc8f30d5ab796",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1659102345,
+        "narHash": "sha256-Vbzlz254EMZvn28BhpN8JOi5EuKqnHZ3ujFYgFcSGvk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "11b60e4f80d87794a2a4a8a256391b37c59a1ea7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "naersk": "naersk",
+        "nixpkgs": "nixpkgs_2",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1664593374,
+        "narHash": "sha256-FIXW0voU/fZ4XSenAAcFmmng1YEgxHRqhQPpW5r9W94=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "f48045bb46f6eef8314b9fe01b7db9dcdbca1e10",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "bespoke web service 'framework'";
+
+  inputs = {
+    nixpkgs.url      = "github:NixOS/nixpkgs/nixos-unstable";
+    naersk.url       = "github:nmattia/naersk";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    flake-utils.url  = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, naersk, rust-overlay, flake-utils, ... }:
+    let 
+      cargoToml = (builtins.fromTOML (builtins.readFile ./Cargo.toml));
+    in flake-utils.lib.eachDefaultSystem (system:
+      let
+        # overlay containing a package built from this repo's Cargo.toml
+        mypkgoverlay = final: prev: {
+          "${cargoToml.package.name}" = final.callPackage ./. { inherit naersk; };
+        };
+        overlays = [ (import rust-overlay) mypkgoverlay ];
+        pkgs = import nixpkgs {
+          inherit system overlays;
+        };
+      in
+      with pkgs;
+      {
+        devShells.default = mkShell {
+          buildInputs = [
+            openssl
+            pkg-config
+            rust-bin.stable.latest.default
+          ];
+
+          shellHook = ''
+          '';
+        };
+
+        packages = {
+          "${cargoToml.package.name}" = pkgs."${cargoToml.package.name}";
+        };
+        defaultPackage = (import nixpkgs {
+          inherit system overlays;
+        })."${cargoToml.package.name}";
+        
+      }
+    );
+}
+

src/main.rs

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+fn main() {
+    println!("Hello, world!");
+}