neovim -> nixvim

home/programs/nixvim/plugins/conform.nix

@@ -0,0 +1,133 @@
+{ pkgs, ... }:
+
+{
+  home.packages = with pkgs; [
+    stylua
+    rustfmt
+    fourmolu
+    shellcheck
+    shellharden
+    shfmt
+    black
+    beamMinimal28Packages.elixir
+    clang-tools
+    prettierd
+    nixfmt-rfc-style
+    tex-fmt
+    hclfmt
+    topiary # TODO: Install https://github.com/blindFS/topiary-nushell somehow, e.g. clone languages.ncl to ~/.config/topiary/languages.ncl & nu.scm to ~/.config/topiary/topiary-queries/queries/nu.scm
+  ];
+
+  programs.nixvim.plugins = {
+    conform-nvim = {
+      enable = true;
+      settings = {
+        formatters_by_ft = {
+          lua = [ "stylua" ];
+          rust = [ "rustfmt" ];
+          python = [
+            "black"
+          ];
+          haskell = [ "fourmolu" ];
+          terraform = [ "hcl" ];
+          elixir = [ "mix" ];
+          bash = [
+            "shellcheck"
+            "shellharden"
+            "shfmt"
+          ];
+          sh = [
+            "shellcheck"
+            "shfmt"
+          ];
+          c = [ "clang-format" ];
+          cpp = [ "clang-format" ];
+          markdown = [ "prettierd" ];
+          json = [ "prettierd" ];
+          yaml = [ "prettierd" ];
+          nu = [ "topiary_nu" ];
+          nix = [ "nixfmt" ];
+          tex = [
+            "tex-fmt"
+          ];
+          "_" = [
+            "squeeze_blanks"
+            "trim_whitespace"
+            "trim_newlines"
+          ];
+        };
+        format_on_save = # Lua
+          ''
+            function(bufnr)
+              if vim.g.disable_autoformat or vim.b[bufnr].disable_autoformat then
+                return
+              end
+
+              return { lsp_fallback = true }
+             end
+          '';
+        format_after_save = # Lua
+          ''
+            function(bufnr)
+              if vim.g.disable_autoformat or vim.b[bufnr].disable_autoformat then
+                return
+              end
+
+              return { lsp_fallback = true }
+            end
+          '';
+        formatters = {
+          topiary_nu = {
+            command = "topiary";
+            args = [
+              "format"
+              "--language"
+              "nu"
+            ];
+          };
+          stylua = {
+            "inherit" = true;
+            prepend_args = [
+              "--indent-type"
+              "Spaces"
+              "--indent-width"
+              "2"
+            ];
+          };
+          tex-fmt = {
+            command = "tex-fmt";
+          };
+        };
+      };
+    };
+  };
+
+  programs.nixvim.userCommands = {
+    FormatDisable = {
+      bang = true;
+      desc = "Disable autoformat-on-save";
+      command.__raw = # Lua
+        ''
+          function(args)
+            if args.bang then
+              -- FormatDisable! will disable formatting just for this buffer
+              vim.b.disable_autoformat = true
+            else
+              vim.g.disable_autoformat = true
+            end
+          end
+        '';
+    };
+    FormatEnable = {
+      desc = "Re-enable autoformat-on-save";
+      command.__raw = # Lua
+        ''
+          function()
+            vim.b.disable_autoformat = false
+            vim.g.disable_autoformat = false
+          end
+        '';
+    };
+  };
+}
+