build(nix): do crane EZA style

This is essentailly taken from the work of 9glenda
https://github.com/eza-community/eza/pull/462

Signed-off-by: Christina Sørensen <christina@cafkafk.com>

.envrc

@@ -0,0 +1,3 @@
+if has nix; then
+  use flake .
+fi

Cargo.toml

@@ -3,7 +3,7 @@ name = "seidr"
 version = "0.2.0"
 authors = ["Christina Sørensen"]
 edition = "2021"
-rust-version = "1.69.0"
+rust-version = "1.70.0"
 description = "A Rust GitOps/symlinkfarm orchestrator inspired by GNU Stow."
 documentation = "https://github.com/cafkafk/seidr"
 readme = "./README.org"

benches/basic_bench.rs

@@ -1,6 +1,6 @@
 use criterion::{black_box, criterion_group, criterion_main, Criterion};
-use seidr::git::Config;
 use relative_path::RelativePath;
+use seidr::git::Config;
 
 pub fn criterion_benchmark(c: &mut Criterion) {
     c.bench_function("config loading time", |b| {

flake.lock

@@ -1,81 +1,5 @@
 {
   "nodes": {
-    "advisory-db": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1695296241,
-        "narHash": "sha256-t3SBLTqXyMlloAC0qSTHRAlWweiww6rmp0gSotDy1yo=",
-        "owner": "rustsec",
-        "repo": "advisory-db",
-        "rev": "81594d9fd5b32c3eaa199812475498b47fc98742",
-        "type": "github"
-      },
-      "original": {
-        "owner": "rustsec",
-        "repo": "advisory-db",
-        "type": "github"
-      }
-    },
-    "crane": {
-      "inputs": {
-        "flake-compat": "flake-compat",
-        "flake-utils": "flake-utils",
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "rust-overlay": "rust-overlay"
-      },
-      "locked": {
-        "lastModified": 1695511445,
-        "narHash": "sha256-mnE14re43v3/Jc50Jv0BKPMtEk7FEtDSligP6B5HwlI=",
-        "owner": "ipetkov",
-        "repo": "crane",
-        "rev": "3de322e06fc88ada5e3589dc8a375b73e749f512",
-        "type": "github"
-      },
-      "original": {
-        "owner": "ipetkov",
-        "repo": "crane",
-        "type": "github"
-      }
-    },
-    "fenix": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "rust-analyzer-src": []
-      },
-      "locked": {
-        "lastModified": 1695622936,
-        "narHash": "sha256-3bnz0FxC/x3K2/E2b2OBG+Iexyh/Fcpq2hZU+lxtLdA=",
-        "owner": "nix-community",
-        "repo": "fenix",
-        "rev": "4fa09c7203bef57254bb1cb1d4bab76fdae34dd5",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "fenix",
-        "type": "github"
-      }
-    },
-    "flake-compat": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1673956053,
-        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
-        "type": "github"
-      },
-      "original": {
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "type": "github"
-      }
-    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
@@ -99,11 +23,11 @@
         "systems": "systems_2"
       },
       "locked": {
-        "lastModified": 1694529238,
+        "lastModified": 1681202837,
-        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
         "type": "github"
       },
       "original": {
@@ -112,13 +36,44 @@
         "type": "github"
       }
     },
+    "naersk": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1694081375,
+        "narHash": "sha256-vzJXOUnmkMCm3xw8yfPP5m8kypQ3BhAIRe4RRCWpzy8=",
+        "owner": "nix-community",
+        "repo": "naersk",
+        "rev": "3f976d822b7b37fc6fb8e6f157c2dd05e7e94e89",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "naersk",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1695318763,
+        "lastModified": 1696019113,
-        "narHash": "sha256-FHVPDRP2AfvsxAdc+AsgFJevMz5VBmnZglFUMlxBkcY=",
+        "narHash": "sha256-X3+DKYWJm93DRSdC5M6K5hLqzSya9BjibtBsuARoPco=",
+        "path": "/nix/store/r88zkfh22shcgj0c4zh9jj2q5r1z9wjn-source",
+        "rev": "f5892ddac112a1e9b3612c39af1b72987ee5783a",
+        "type": "path"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1696419054,
+        "narHash": "sha256-EdR+dIKCfqL3voZUDYwcvgRDOektQB9KbhBVcE0/3Mo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "e12483116b3b51a185a33a272bf351e357ba9a99",
+        "rev": "7131f3c223a2d799568e4b278380cd9dac2b8579",
         "type": "github"
       },
       "original": {
@@ -128,32 +83,58 @@
         "type": "github"
       }
     },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1681358109,
+        "narHash": "sha256-eKyxW4OohHQx9Urxi7TQlFBTDWII+F+x2hklDOQPB50=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "96ba1c52e54e74c3197f4d43026b3f3d92e83ff9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_4": {
+      "locked": {
+        "lastModified": 1695644571,
+        "narHash": "sha256-asS9dCCdlt1lPq0DLwkVBbVoEKuEuz+Zi3DG7pR/RxA=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "6500b4580c2a1f3d0f980d32d285739d8e156d92",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
-        "advisory-db": "advisory-db",
+        "flake-utils": "flake-utils",
-        "crane": "crane",
+        "naersk": "naersk",
-        "fenix": "fenix",
+        "nixpkgs": "nixpkgs_2",
-        "flake-utils": "flake-utils_2",
+        "rust-overlay": "rust-overlay",
-        "nixpkgs": "nixpkgs"
+        "treefmt-nix": "treefmt-nix"
       }
     },
     "rust-overlay": {
       "inputs": {
-        "flake-utils": [
+        "flake-utils": "flake-utils_2",
-          "crane",
+        "nixpkgs": "nixpkgs_3"
-          "flake-utils"
-        ],
-        "nixpkgs": [
-          "crane",
-          "nixpkgs"
-        ]
       },
       "locked": {
-        "lastModified": 1695003086,
+        "lastModified": 1696558324,
-        "narHash": "sha256-d1/ZKuBRpxifmUf7FaedCqhy0lyVbqj44Oc2s+P5bdA=",
+        "narHash": "sha256-TnnP4LGwDB8ZGE7h2n4nA9Faee8xPkMdNcyrzJ57cbw=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "b87a14abea512d956f0b89d0d8a1e9b41f3e20ff",
+        "rev": "fdb37574a04df04aaa8cf7708f94a9309caebe2b",
         "type": "github"
       },
       "original": {
@@ -191,6 +172,24 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "treefmt-nix": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_4"
+      },
+      "locked": {
+        "lastModified": 1695822946,
+        "narHash": "sha256-IQU3fYo0H+oGlqX5YrgZU3VRhbt2Oqe6KmslQKUO4II=",
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "rev": "720bd006d855b08e60664e4683ccddb7a9ff614a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -1,154 +1,113 @@
 {
-  description = "Build a cargo project";
+  description = "Hon hafði um sik hnjóskulinda, ok var þar á skjóðupungr mikill, ok varðveitti hon þar í töfr sín, þau er hon þurfti til fróðleiks at hafa.";
 
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
-
-    crane = {
-      url = "github:ipetkov/crane";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-
-    fenix = {
-      url = "github:nix-community/fenix";
-      inputs.nixpkgs.follows = "nixpkgs";
-      inputs.rust-analyzer-src.follows = "";
-    };
-
     flake-utils.url = "github:numtide/flake-utils";
-
+    naersk.url = "github:nix-community/naersk";
-    advisory-db = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
-      url = "github:rustsec/advisory-db";
+    treefmt-nix.url = "github:numtide/treefmt-nix";
-      flake = false;
+    rust-overlay.url = "github:oxalica/rust-overlay";
-    };
   };
 
-  outputs = { self, nixpkgs, crane, fenix, flake-utils, advisory-db, ... }:
+  outputs = {
-    flake-utils.lib.eachDefaultSystem (system:
+    self,
-      let
+    flake-utils,
-        pkgs = import nixpkgs {
+    naersk,
-          inherit system;
+    nixpkgs,
+    treefmt-nix,
+    rust-overlay,
+  }:
+    flake-utils.lib.eachDefaultSystem (
+      system: let
+        overlays = [(import rust-overlay)];
+
+        pkgs = (import nixpkgs) {
+          inherit system overlays;
         };
 
-        inherit (pkgs) lib;
+        toolchain = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
 
-        craneLib = crane.lib.${system};
+        naersk' = pkgs.callPackage naersk {
-
+          cargo = toolchain;
-        # When filtering sources, we want to allow assets other than .rs files
+          rustc = toolchain;
-        src = lib.cleanSourceWith {
+          clippy = toolchain;
-          src = ./.; # The original, unfiltered source
-          filter = path: type:
-            (lib.hasSuffix "\.yaml" path) ||
-            # (lib.hasSuffix "\.scss" path) ||
-            # Example of a folder for images, icons, etc
-            #(lib.hasInfix "test" path) ||
-            # Default filter from crane (allow .rs files)
-            (craneLib.filterCargoSources path type)
-          ;
         };
 
-        # Common arguments can be set here to avoid repeating them later
+        treefmtEval = treefmt-nix.lib.evalModule pkgs ./treefmt.nix;
-        commonArgs = {
+        buildInputs = with pkgs; [zlib] ++ lib.optionals stdenv.isDarwin [libiconv darwin.apple_sdk.frameworks.Security];
-          inherit src;
+      in rec {
-
+        # For `nix fmt`
-          buildInputs = [
+        formatter = treefmtEval.config.build.wrapper;
-            # test-directory
-            # Add additional build inputs here
-          ] ++ lib.optionals pkgs.stdenv.isDarwin [
-            # Additional darwin specific inputs can be set here
-            pkgs.libiconv
-          ];
-
-          # Additional environment variables can be set directly
-          # MY_CUSTOM_VAR = "some value";
-          RUST_BACKTRACE = 1;
-        };
-
-        craneLibLLvmTools = craneLib.overrideToolchain
-          (fenix.packages.${system}.complete.withComponents [
-            "cargo"
-            "llvm-tools"
-            "rustc"
-          ]);
-
-        # Build *just* the cargo dependencies, so we can reuse
-        # all of that work (e.g. via cachix) when running in CI
-        cargoArtifacts = craneLib.buildDepsOnly commonArgs;
-
-        # Build the actual crate itself, reusing the dependency
-        # artifacts from above.
-        my-crate = craneLib.buildPackage (commonArgs // {
-          inherit cargoArtifacts;
-        });
-      in
-      {
-        checks = {
-          # Build the crate as part of `nix flake check` for convenience
-          inherit my-crate;
-
-          # Run clippy (and deny all warnings) on the crate source,
-          # again, resuing the dependency artifacts from above.
-          #
-          # Note that this is done as a separate derivation so that
-          # we can block the CI if there are issues here, but not
-          # prevent downstream consumers from building our crate by itself.
-          my-crate-clippy = craneLib.cargoClippy (commonArgs // {
-            inherit cargoArtifacts;
-            cargoClippyExtraArgs = "--all-targets -- --deny warnings";
-          });
-
-          my-crate-doc = craneLib.cargoDoc (commonArgs // {
-            inherit cargoArtifacts;
-          });
-
-          # Check formatting
-          my-crate-fmt = craneLib.cargoFmt {
-            inherit src;
-          };
-
-          # Audit dependencies
-          my-crate-audit = craneLib.cargoAudit {
-            inherit src advisory-db;
-          };
-
-          # Run tests with cargo-nextest
-          # Consider setting `doCheck = false` on `my-crate` if you do not want
-          # the tests to run twice
-          my-crate-nextest = craneLib.cargoNextest (commonArgs // {
-            inherit cargoArtifacts;
-            partitions = 1;
-            partitionType = "count";
-          });
-        } // lib.optionalAttrs (system == "x86_64-linux") {
-          # NB: cargo-tarpaulin only supports x86_64 systems
-          # Check code coverage (note: this will not upload coverage anywhere)
-          # my-crate-coverage = craneLib.cargoTarpaulin (commonArgs // {
-          #   inherit cargoArtifacts;
-          # });
-        };
 
         packages = {
-          default = my-crate;
+          # For `nix build` `nix run`, & `nix profile install`:
-          my-crate-llvm-coverage = craneLibLLvmTools.cargoLlvmCov (commonArgs // {
+          default = naersk'.buildPackage rec {
-            inherit cargoArtifacts;
+            pname = "seidr";
-          });
+            version = "git";
-        };
+
-
+            src = ./.;
-        apps.default = flake-utils.lib.mkApp {
+            doCheck = true; # run `cargo test` on build
-          drv = my-crate;
+
+            inherit buildInputs;
+
+            nativeBuildInputs = with pkgs; [cmake pkg-config installShellFiles];
+
+            # buildNoDefaultFeatures = true;
+            # buildFeatures = "git";
+
+            # outputs = [ "out" "man" ];
+
+            meta = with pkgs.lib; {
+              description = "A Rust GitOps/symlinkfarm orchestrator inspired by GNU Stow";
+              longDescription = ''
+                A Rust GitOps/symlinkfarm orchestrator inspired by GNU Stow.
+                Useful for dealing with "dotfiles", and with git support as a
+                first class feature. Configuration is done through a single yaml
+                file, giving it a paradigm that should bring joy to those that
+                use declarative operating systems and package managers.
+              '';
+              homepage = "https://github.com/cafkafk/seidr";
+              license = licenses.gpl3;
+              mainProgram = "seidr";
+              maintainers = with maintainers; [cafkafk];
+            };
+          };
+
+          # Run `nix build .#check` to check code
+          check = naersk'.buildPackage {
+            src = ./.;
+            mode = "check";
+            inherit buildInputs;
+          };
+
+          # Run `nix build .#test` to run tests
+          test = naersk'.buildPackage {
+            src = ./.;
+            mode = "test";
+            inherit buildInputs;
+          };
+
+          # Run `nix build .#clippy` to lint code
+          clippy = naersk'.buildPackage {
+            src = ./.;
+            mode = "clippy";
+            inherit buildInputs;
+          };
         };
 
+        # For `nix develop`:
         devShells.default = pkgs.mkShell {
-          inputsFrom = builtins.attrValues self.checks.${system};
+          nativeBuildInputs = with pkgs; [rustup toolchain just convco];
-
-          # Additional dev-shell environment variables can be set directly
-          # MY_CUSTOM_DEVELOPMENT_VAR = "something else";
-
-          # Extra inputs can be added here
-          nativeBuildInputs = with pkgs; [
-            cargo
-            rustc
-          ];
         };
-      });
+
+        # For `nix flake check`
+        checks = {
+          formatting = treefmtEval.config.build.check self;
+          build = packages.check;
+          default = packages.default;
+          test = packages.test;
+          lint = packages.clippy;
+        };
+      }
+    );
 }

flake.nix.old

@@ -0,0 +1,154 @@
+{
+  description = "Build a cargo project";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+
+    crane = {
+      url = "github:ipetkov/crane";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    fenix = {
+      url = "github:nix-community/fenix";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.rust-analyzer-src.follows = "";
+    };
+
+    flake-utils.url = "github:numtide/flake-utils";
+
+    advisory-db = {
+      url = "github:rustsec/advisory-db";
+      flake = false;
+    };
+  };
+
+  outputs = { self, nixpkgs, crane, fenix, flake-utils, advisory-db, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+        };
+
+        inherit (pkgs) lib;
+
+        craneLib = crane.lib.${system};
+
+        # When filtering sources, we want to allow assets other than .rs files
+        src = lib.cleanSourceWith {
+          src = ./.; # The original, unfiltered source
+          filter = path: type:
+            (lib.hasSuffix "\.yaml" path) ||
+            # (lib.hasSuffix "\.scss" path) ||
+            # Example of a folder for images, icons, etc
+            #(lib.hasInfix "test" path) ||
+            # Default filter from crane (allow .rs files)
+            (craneLib.filterCargoSources path type)
+          ;
+        };
+
+        # Common arguments can be set here to avoid repeating them later
+        commonArgs = {
+          inherit src;
+
+          buildInputs = [
+            # test-directory
+            # Add additional build inputs here
+          ] ++ lib.optionals pkgs.stdenv.isDarwin [
+            # Additional darwin specific inputs can be set here
+            pkgs.libiconv
+          ];
+
+          # Additional environment variables can be set directly
+          # MY_CUSTOM_VAR = "some value";
+          RUST_BACKTRACE = 1;
+        };
+
+        craneLibLLvmTools = craneLib.overrideToolchain
+          (fenix.packages.${system}.complete.withComponents [
+            "cargo"
+            "llvm-tools"
+            "rustc"
+          ]);
+
+        # Build *just* the cargo dependencies, so we can reuse
+        # all of that work (e.g. via cachix) when running in CI
+        cargoArtifacts = craneLib.buildDepsOnly commonArgs;
+
+        # Build the actual crate itself, reusing the dependency
+        # artifacts from above.
+        my-crate = craneLib.buildPackage (commonArgs // {
+          inherit cargoArtifacts;
+        });
+      in
+      {
+        checks = {
+          # Build the crate as part of `nix flake check` for convenience
+          inherit my-crate;
+
+          # Run clippy (and deny all warnings) on the crate source,
+          # again, resuing the dependency artifacts from above.
+          #
+          # Note that this is done as a separate derivation so that
+          # we can block the CI if there are issues here, but not
+          # prevent downstream consumers from building our crate by itself.
+          my-crate-clippy = craneLib.cargoClippy (commonArgs // {
+            inherit cargoArtifacts;
+            cargoClippyExtraArgs = "--all-targets -- --deny warnings";
+          });
+
+          my-crate-doc = craneLib.cargoDoc (commonArgs // {
+            inherit cargoArtifacts;
+          });
+
+          # Check formatting
+          my-crate-fmt = craneLib.cargoFmt {
+            inherit src;
+          };
+
+          # Audit dependencies
+          my-crate-audit = craneLib.cargoAudit {
+            inherit src advisory-db;
+          };
+
+          # Run tests with cargo-nextest
+          # Consider setting `doCheck = false` on `my-crate` if you do not want
+          # the tests to run twice
+          my-crate-nextest = craneLib.cargoNextest (commonArgs // {
+            inherit cargoArtifacts;
+            partitions = 1;
+            partitionType = "count";
+          });
+        } // lib.optionalAttrs (system == "x86_64-linux") {
+          # NB: cargo-tarpaulin only supports x86_64 systems
+          # Check code coverage (note: this will not upload coverage anywhere)
+          # my-crate-coverage = craneLib.cargoTarpaulin (commonArgs // {
+          #   inherit cargoArtifacts;
+          # });
+        };
+
+        packages = {
+          default = my-crate;
+          my-crate-llvm-coverage = craneLibLLvmTools.cargoLlvmCov (commonArgs // {
+            inherit cargoArtifacts;
+          });
+        };
+
+        apps.default = flake-utils.lib.mkApp {
+          drv = my-crate;
+        };
+
+        devShells.default = pkgs.mkShell {
+          inputsFrom = builtins.attrValues self.checks.${system};
+
+          # Additional dev-shell environment variables can be set directly
+          # MY_CUSTOM_DEVELOPMENT_VAR = "something else";
+
+          # Extra inputs can be added here
+          nativeBuildInputs = with pkgs; [
+            cargo
+            rustc
+          ];
+        };
+      });
+}

rust-toolchain.toml

@@ -0,0 +1,11 @@
+[toolchain]
+channel = "1.70"
+components = [
+  "rustfmt",
+  "rustc",
+  "rust-src",
+  "rust-analyzer",
+  "cargo",
+  "clippy",
+]
+profile = "minimal"

treefmt.nix

@@ -0,0 +1,11 @@
+{
+  projectRootFile = "Cargo.toml";
+  programs = {
+    alejandra.enable = true; # nix
+    rustfmt.enable = true; # rust
+    shellcheck.enable = true; # bash/shell
+    deadnix.enable = true; # find dead nix code
+    taplo.enable = true; # toml
+    yamlfmt.enable = true; # yaml
+  };
+}