Merge 24a7cc5627 into ef413736e9

configuration.nix

@@ -51,6 +51,7 @@ isMaximal: {
       css.enable = isMaximal;
       sql.enable = isMaximal;
       java.enable = isMaximal;
+      kotlin.enable = isMaximal;
       ts.enable = isMaximal;
       svelte.enable = isMaximal;
       go.enable = isMaximal;

docs/release-notes/rl-0.7.md

@@ -28,10 +28,11 @@ configuration formats.
 
 ### `vim.maps` rewrite {#sec-vim-maps-rewrite}
 
-Instead of specifying map modes using submodules (eg.: `vim.maps.normal`), a new `vim.keymaps`
+Instead of specifying map modes using submodules (eg.: `vim.maps.normal`), a new
-submodule with support for a `mode` option has been introduced. It can be either a string, or a
+`vim.keymaps` submodule with support for a `mode` option has been introduced. It
-list of strings, where a string represents the short-name of the map mode(s), that the mapping
+can be either a string, or a list of strings, where a string represents the
-should be set for. See `:help map-modes` for more information.
+short-name of the map mode(s), that the mapping should be set for. See
+`:help map-modes` for more information.
 
 For example:
 
@@ -62,7 +63,6 @@ Note that we are looking to add more alternatives in the future like
 dressing.nvim and actions-preview.nvim, in case fastaction doesn't work for
 everyone.
 
-
 ## Changelog {#sec-release-0.7-changelog}
 
 [ItsSorae](https://github.com/ItsSorae):
@@ -150,12 +150,15 @@ everyone.
 - Replace `vim.lsp.nvimCodeActionMenu` with `vim.ui.fastaction`, see the
   breaking changes section above for more details
 
-- Add a `setupOpts` option to nvim-surround, which allows modifying options that aren't defined in nvf. Move the alternate nvim-surround keybinds to use `setupOpts`.
+- Add a `setupOpts` option to nvim-surround, which allows modifying options that
+  aren't defined in nvf. Move the alternate nvim-surround keybinds to use
+  `setupOpts`.
 
 [Neovim documentation on `vim.cmd`]: https://neovim.io/doc/user/lua.html#vim.cmd()
 
 - Make Neovim's configuration file entirely Lua based. This comes with a few
   breaking changes:
+
   - `vim.configRC` has been removed. You will need to migrate your entries to
     Neovim-compliant Lua code, and add them to `vim.luaConfigRC` instead.
     Existing vimscript configurations may be preserved in `vim.cmd` functions.
@@ -242,10 +245,11 @@ everyone.
 - Add LSP and Treesitter support for R under `vim.languages.R`.
 - Add Otter support under `vim.lsp.otter` and an assert to prevent conflict with
   ccc
-  
+- Add LSP, diagnostics, formatter and Treesitter support for Kotlin under
+  `vim.languages.kotlin`
+
 [Bloxx12](https://github.com/Bloxx12)
 
 - Add support for [base16 theming](https://github.com/RRethy/base16-nvim) under
   `vim.theme`
 - Fix internal breakage in `elixir-tools` setup.
-

modules/plugins/languages/default.nix

@@ -8,6 +8,7 @@ in {
     ./css.nix
     ./elixir.nix
     ./go.nix
+    ./kotlin.nix
     ./html.nix
     ./java.nix
     ./lua.nix

modules/plugins/languages/kotlin.nix

@@ -0,0 +1,111 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}: let
+  inherit (lib.options) mkEnableOption mkOption;
+  inherit (lib.modules) mkIf mkMerge;
+  inherit (lib.meta) getExe;
+  inherit (lib.nvim.languages) diagnosticsToLua;
+  inherit (lib.types) package;
+  inherit (lib.nvim.types) mkGrammarOption diagnostics;
+  inherit (lib.lists) isList;
+  inherit (lib.nvim.lua) expToLua;
+
+  cfg = config.vim.languages.kotlin;
+
+  # Creating a version of the LSP with access to the kotlin binary.
+  # This is necessary for the LSP to load the standard library
+  kotlinLspWithRuntime = pkgs.symlinkJoin {
+    name = "kotlin-language-server-with-runtime";
+    paths = [
+      pkgs.kotlin-language-server
+      pkgs.kotlin
+    ];
+    buildInputs = [pkgs.makeWrapper];
+    postBuild = ''
+      wrapProgram $out/bin/kotlin-language-server \
+        --prefix PATH : ${pkgs.lib.makeBinPath [pkgs.kotlin]}
+    '';
+  };
+
+  defaultDiagnosticsProvider = ["ktlint"];
+  diagnosticsProviders = {
+    ktlint = {
+      package = pkgs.ktlint;
+      nullConfig = pkg: ''
+        table.insert(
+          ls_sources,
+          null_ls.builtins.diagnostics.ktlint.with({
+            command = "${getExe pkg}",
+          })
+        )
+      '';
+    };
+  };
+in {
+  options.vim.languages.kotlin = {
+    enable = mkEnableOption "Kotlin/HCL support";
+
+    treesitter = {
+      enable = mkEnableOption "Kotlin treesitter" // {default = config.vim.languages.enableTreesitter;};
+      package = mkGrammarOption pkgs "kotlin";
+    };
+
+    lsp = {
+      enable = mkEnableOption "Kotlin LSP support (kotlin_language_server)" // {default = config.vim.languages.enableLSP;};
+
+      package = mkOption {
+        description = "kotlin_language_server package with Kotlin runtime";
+        type = package;
+        default = kotlinLspWithRuntime;
+      };
+    };
+
+    extraDiagnostics = {
+      enable = mkEnableOption "extra Kotlin diagnostics" // {default = config.vim.languages.enableExtraDiagnostics;};
+
+      types = diagnostics {
+        langDesc = "Kotlin";
+        inherit diagnosticsProviders;
+        inherit defaultDiagnosticsProvider;
+      };
+    };
+  };
+  config = mkIf cfg.enable (mkMerge [
+    (mkIf cfg.treesitter.enable {
+      vim.treesitter.enable = true;
+      vim.treesitter.grammars = [cfg.treesitter.package];
+    })
+
+    (mkIf cfg.extraDiagnostics.enable {
+      vim.lsp.null-ls.enable = true;
+      vim.lsp.null-ls.sources = diagnosticsToLua {
+        lang = "ts";
+        config = cfg.extraDiagnostics.types;
+        inherit diagnosticsProviders;
+      };
+    })
+
+    (mkIf cfg.lsp.enable {
+      vim.lsp.lspconfig.enable = true;
+      vim.lsp.lspconfig.sources.kotlin_language_server = ''
+        lspconfig.kotlin_language_server.setup {
+          capabilities = capabilities,
+          root_dir = lspconfig.util.root_pattern("main.kt", ".git"),
+          on_attach=default_on_attach,
+          init_options = {
+          -- speeds up the startup time for the LSP
+            storagePath = vim.fn.stdpath('state') .. '/kotlin',
+          },
+          cmd = ${
+          if isList cfg.lsp.package
+          then expToLua cfg.lsp.package
+          else ''{"${cfg.lsp.package}/bin/kotlin-language-server"}''
+        },
+        }
+      '';
+    })
+  ]);
+}