From 885a43f6e7cabf0b3a281b479314b26bf119dd96 Mon Sep 17 00:00:00 2001
From: Mihai Fufezan <fufexan@protonmail.com>
Date: Tue, 7 Feb 2023 14:03:21 +0200
Subject: [PATCH] flake.nix: transition to flake-parts

---
 extra.nix  | 168 ++++++++++++++++++++++++++++++++
 flake.lock |  37 +++++++
 flake.nix  | 275 ++++++++++-------------------------------------------
 3 files changed, 255 insertions(+), 225 deletions(-)
 create mode 100644 extra.nix

diff --git a/extra.nix b/extra.nix
new file mode 100644
index 0000000..bd5e705
--- /dev/null
+++ b/extra.nix
@@ -0,0 +1,168 @@
+inputs: let
+  modulesWithInputs = import ./modules {inherit inputs;};
+
+  neovimConfiguration = {
+    modules ? [],
+    pkgs,
+    lib ? pkgs.lib,
+    check ? true,
+    extraSpecialArgs ? {},
+  }:
+    modulesWithInputs {
+      inherit pkgs lib check extraSpecialArgs;
+      configuration = {...}: {
+        imports = modules;
+      };
+    };
+
+  mainConfig = isMaximal: {
+    config = {
+      vim = {
+        viAlias = true;
+        vimAlias = true;
+      };
+
+      vim.lsp = {
+        enable = true;
+        formatOnSave = true;
+        lightbulb.enable = true;
+        lspsaga.enable = false;
+        nvimCodeActionMenu.enable = true;
+        trouble.enable = true;
+        lspSignature.enable = true;
+        rust.enable = isMaximal;
+        python = isMaximal;
+        clang.enable = isMaximal;
+        sql = isMaximal;
+        ts = isMaximal;
+        go = isMaximal;
+        zig.enable = isMaximal;
+        nix = {
+          enable = true;
+          formatter = "alejandra";
+        };
+      };
+
+      vim.visuals = {
+        enable = true;
+        nvimWebDevicons.enable = true;
+        scrollBar.enable = true;
+        smoothScroll.enable = true;
+        cellularAutomaton.enable = true;
+        lspkind.enable = true;
+        indentBlankline = {
+          enable = true;
+          fillChar = "";
+          eolChar = "";
+          showCurrContext = true;
+        };
+        cursorWordline = {
+          enable = true;
+          lineTimeout = 0;
+        };
+      };
+
+      vim.statusline.lualine = {
+        enable = true;
+        theme = "catppuccin";
+      };
+
+      vim.theme = {
+        enable = true;
+        name = "catppuccin";
+        style = "mocha";
+      };
+      vim.autopairs.enable = true;
+
+      vim.autocomplete = {
+        enable = true;
+        type = "nvim-cmp";
+      };
+
+      vim.filetree = {
+        nvimTreeLua = {
+          enable = true;
+          view = {
+            width = 25;
+          };
+        };
+      };
+
+      vim.tabline = {
+        nvimBufferline.enable = true;
+      };
+
+      vim.treesitter = {
+        enable = true;
+        context.enable = true;
+      };
+
+      vim.binds = {
+        whichKey.enable = true;
+        cheatsheet.enable = true;
+      };
+
+      vim.telescope = {
+        enable = true;
+      };
+
+      vim.markdown = {
+        enable = true;
+        glow.enable = true;
+      };
+
+      vim.git = {
+        enable = true;
+        gitsigns.enable = true;
+      };
+
+      vim.minimap = {
+        minimap-vim.enable = false;
+        codewindow.enable = true; # lighter, faster, and uses lua for configuration
+      };
+
+      vim.dashboard = {
+        dashboard-nvim.enable = false;
+        alpha.enable = true;
+      };
+
+      vim.notify = {
+        nvim-notify.enable = true;
+      };
+
+      vim.utility = {
+        colorizer.enable = true;
+        icon-picker.enable = true;
+        venn-nvim.enable = false; # FIXME throws an error when its commands are ran manually
+      };
+
+      vim.notes = {
+        obsidian.enable = false; # FIXME neovim fails to build if obsidian is enabled
+        orgmode.enable = true;
+      };
+
+      vim.terminal = {
+        toggleterm.enable = true;
+      };
+
+      vim.ui = {
+        noice.enable = true;
+      };
+
+      vim.assistant = {
+        copilot.enable = false;
+        tabnine.enable = false; # FIXME: this is not working because the plugin depends on an internal script to be ran by the package manager
+      };
+
+      vim.session = {
+        nvim-session-manager.enable = false;
+      };
+
+      vim.gestures = {
+        gesture-nvim.enable = false;
+      };
+    };
+  };
+in {
+  inherit neovimConfiguration mainConfig;
+}
diff --git a/flake.lock b/flake.lock
index 0c74fd2..97fc37c 100644
--- a/flake.lock
+++ b/flake.lock
@@ -305,6 +305,24 @@
         "type": "github"
       }
     },
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1675295133,
+        "narHash": "sha256-dU8fuLL98WFXG0VnRgM00bqKX6CEPBLybhiIDIgO45o=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "bf53492df08f3178ce85e0c9df8ed8d03c030c9f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "locked": {
         "lastModified": 1667395993,
@@ -557,6 +575,24 @@
         "type": "github"
       }
     },
+    "nixpkgs-lib": {
+      "locked": {
+        "dir": "lib",
+        "lastModified": 1672350804,
+        "narHash": "sha256-jo6zkiCabUBn3ObuKXHGqqORUMH27gYDIFFfLq5P4wg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "677ed08a50931e38382dbef01cba08a8f7eac8f6",
+        "type": "github"
+      },
+      "original": {
+        "dir": "lib",
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs_2": {
       "locked": {
         "lastModified": 1656753965,
@@ -1014,6 +1050,7 @@
         "dashboard-nvim": "dashboard-nvim",
         "discord-nvim": "discord-nvim",
         "dressing-nvim": "dressing-nvim",
+        "flake-parts": "flake-parts",
         "flake-utils": "flake-utils",
         "gesture-nvim": "gesture-nvim",
         "gitsigns-nvim": "gitsigns-nvim",
diff --git a/flake.nix b/flake.nix
index 18cdb89..287688d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,26 +2,11 @@
   description = "A neovim flake with a modular configuration";
   outputs = {
     nixpkgs,
-    flake-utils,
+    flake-parts,
     ...
   } @ inputs: let
-    modulesWithInputs = import ./modules {inherit inputs;};
-
-    neovimConfiguration = {
-      modules ? [],
-      pkgs,
-      lib ? pkgs.lib,
-      check ? true,
-      extraSpecialArgs ? {},
-    }:
-      modulesWithInputs {
-        inherit pkgs lib check extraSpecialArgs;
-        configuration = {...}: {
-          imports = modules;
-        };
-      };
-
-    nvimBin = pkg: "${pkg}/bin/nvim";
+    inherit (nixpkgs) lib;
+    inherit (import ./extra.nix inputs) neovimConfiguration mainConfig;
 
     buildPkg = pkgs: modules:
       (neovimConfiguration {
@@ -30,179 +15,42 @@
       .neovim;
 
     tidalConfig = {
-      config = {
-        vim.tidal.enable = true;
-      };
-    };
-
-    mainConfig = isMaximal: {
-      config = {
-        vim = {
-          viAlias = true;
-          vimAlias = true;
-        };
-
-        vim.lsp = {
-          enable = true;
-          formatOnSave = true;
-          lightbulb.enable = true;
-          lspsaga.enable = false;
-          nvimCodeActionMenu.enable = true;
-          trouble.enable = true;
-          lspSignature.enable = true;
-          rust.enable = isMaximal;
-          python = isMaximal;
-          clang.enable = isMaximal;
-          sql = isMaximal;
-          ts = isMaximal;
-          go = isMaximal;
-          zig.enable = isMaximal;
-          nix = {
-            enable = true;
-            formatter = "alejandra";
-          };
-        };
-
-        vim.visuals = {
-          enable = true;
-          nvimWebDevicons.enable = true;
-          scrollBar.enable = true;
-          smoothScroll.enable = true;
-          cellularAutomaton.enable = true;
-          lspkind.enable = true;
-          indentBlankline = {
-            enable = true;
-            fillChar = "";
-            eolChar = "";
-            showCurrContext = true;
-          };
-          cursorWordline = {
-            enable = true;
-            lineTimeout = 0;
-          };
-        };
-
-        vim.statusline.lualine = {
-          enable = true;
-          theme = "catppuccin";
-        };
-
-        vim.theme = {
-          enable = true;
-          name = "catppuccin";
-          style = "mocha";
-        };
-        vim.autopairs.enable = true;
-
-        vim.autocomplete = {
-          enable = true;
-          type = "nvim-cmp";
-        };
-
-        vim.filetree = {
-          nvimTreeLua = {
-            enable = true;
-            view = {
-              width = 25;
-            };
-          };
-        };
-
-        vim.tabline = {
-          nvimBufferline.enable = true;
-        };
-
-        vim.treesitter = {
-          enable = true;
-          context.enable = true;
-        };
-
-        vim.binds = {
-          whichKey.enable = true;
-          cheatsheet.enable = true;
-        };
-
-        vim.telescope = {
-          enable = true;
-        };
-
-        vim.markdown = {
-          enable = true;
-          glow.enable = true;
-        };
-
-        vim.git = {
-          enable = true;
-          gitsigns.enable = true;
-        };
-
-        vim.minimap = {
-          minimap-vim.enable = false;
-          codewindow.enable = true; # lighter, faster, and uses lua for configuration
-        };
-
-        vim.dashboard = {
-          dashboard-nvim.enable = false;
-          alpha.enable = true;
-        };
-
-        vim.notify = {
-          nvim-notify.enable = true;
-        };
-
-        vim.utility = {
-          colorizer.enable = true;
-          icon-picker.enable = true;
-          venn-nvim.enable = false; # FIXME throws an error when its commands are ran manually
-        };
-
-        vim.notes = {
-          obsidian.enable = false; # FIXME neovim fails to build if obsidian is enabled
-          orgmode.enable = true;
-        };
-
-        vim.terminal = {
-          toggleterm.enable = true;
-        };
-
-        vim.ui = {
-          noice.enable = true;
-        };
-
-        vim.assistant = {
-          copilot.enable = false;
-          tabnine.enable = false; # FIXME: this is not working because the plugin depends on an internal script to be ran by the package manager
-        };
-
-        vim.session = {
-          nvim-session-manager.enable = false;
-        };
-
-        vim.gestures = {
-          gesture-nvim.enable = false;
-        };
-      };
+      config.vim.tidal.enable = true;
     };
 
     nixConfig = mainConfig false;
     maximalConfig = mainConfig true;
   in
-    {
-      lib = {
-        nvim = (import ./lib/stdlib-extended.nix nixpkgs.lib).nvim;
-        inherit neovimConfiguration;
+    flake-parts.lib.mkFlake {inherit inputs;} {
+      systems = ["x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin"];
+
+      flake = {
+        lib = {
+          nvim = (import ./lib/stdlib-extended.nix nixpkgs.lib).nvim;
+          inherit neovimConfiguration;
+        };
+
+        overlays.default = final: prev: {
+          inherit neovimConfiguration;
+          neovim-nix = buildPkg prev [nixConfig];
+          neovim-maximal = buildPkg prev [maximalConfig];
+          neovim-tidal = buildPkg prev [tidalConfig];
+        };
+
+        nixosModules.hm-module = {
+          imports = [
+            ./lib/hm.nix
+            # {nixpkgs.overlays = [inputs.self.overlays.default];} what?
+          ];
+        };
       };
 
-      overlays.default = final: prev: {
-        inherit neovimConfiguration;
-        neovim-nix = buildPkg prev [nixConfig];
-        neovim-maximal = buildPkg prev [maximalConfig];
-        neovim-tidal = buildPkg prev [tidalConfig];
-      };
-    }
-    // (flake-utils.lib.eachDefaultSystem (
-      system: let
-        pkgs = import nixpkgs {
+      perSystem = {
+        system,
+        self',
+        ...
+      }: {
+        legacyPackages = import nixpkgs {
           inherit system;
           overlays = [
             inputs.tidalcycles.overlays.default
@@ -213,42 +61,28 @@
           ];
         };
 
-        docs = import ./docs {
-          inherit pkgs;
-          nmdSrc = inputs.nmd;
-        };
-
-        # Available Configurations
-        tidalPkg = buildPkg pkgs [tidalConfig];
-        nixPkg = buildPkg pkgs [nixConfig];
-        maximalPkg = buildPkg pkgs [maximalConfig];
-      in {
         apps =
-          rec {
-            nix = {
-              type = "app";
-              program = nvimBin nixPkg;
-            };
-            maximal = {
-              type = "app";
-              program = nvimBin maximalPkg;
-            };
-            default = nix;
+          {
+            nix.program = lib.getExe self'.packages.nix;
+            maximal.program = lib.getExe self'.packages.maximal;
+            default = self'.apps.nix;
           }
           // (
             if !(builtins.elem system ["aarch64-darwin" "x86_64-darwin"])
             then {
-              tidal = {
-                type = "app";
-                program = nvimBin tidalPkg;
-              };
+              tidal.program = lib.getExe self'.packages.tidal;
             }
             else {}
           );
 
-        devShells.default = pkgs.mkShell {nativeBuildInputs = [nixPkg];};
+        devShells.default = self'.legacyPackages.mkShell {nativeBuildInputs = [self'.packages.nix];};
 
-        packages =
+        packages = let
+          docs = import ./docs {
+            pkgs = self'.legacyPackages;
+            nmdSrc = inputs.nmd;
+          };
+        in
           {
             # Documentation
             docs = docs.manual.html;
@@ -257,31 +91,22 @@
             docs-json = docs.options.json;
 
             # Available Configurations
-            default = nixPkg;
-            nix = nixPkg;
-            maximal = maximalPkg;
+            nix = buildPkg self'.legacyPackages [nixConfig];
+            maximal = buildPkg self'.legacyPackages [maximalConfig];
           }
           // (
             if !(builtins.elem system ["aarch64-darwin" "x86_64-darwin"])
-            then {
-              tidal = tidalPkg;
-            }
+            then {tidal = buildPkg self'.legacyPackages [tidalConfig];}
             else {}
           );
-
-        nixosModules.hm-module = {
-          imports = [
-            ./lib/hm.nix
-            # {nixpkgs.overlays = [inputs.self.overlays.default];} what?
-          ];
-        };
-      }
-    ));
+      };
+    };
 
   # Flake inputs
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
     flake-utils.url = "github:numtide/flake-utils";
+    flake-parts.url = "github:hercules-ci/flake-parts";
 
     # For generating documentation website
     nmd = {