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languages/scala: Add scala language support (#399)
* languages/scala: Add scala language support Adds LSP support for Scala via nvim-metals * Fix luaInline import * Add changelog entry for Scala support to 0.7 release notes --------- Co-authored-by: raf <raf@notashelf.dev>
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6 changed files with 177 additions and 0 deletions
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@ -69,6 +69,7 @@ isMaximal: {
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lsp.server = "clangd";
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lsp.server = "clangd";
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};
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};
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scala.enable = isMaximal;
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rust = {
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rust = {
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enable = isMaximal;
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enable = isMaximal;
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crates.enable = isMaximal;
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crates.enable = isMaximal;
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@ -267,3 +267,7 @@ everyone.
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- Add support for [base16 theming](https://github.com/RRethy/base16-nvim) under
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- Add support for [base16 theming](https://github.com/RRethy/base16-nvim) under
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`vim.theme`
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`vim.theme`
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- Fix internal breakage in `elixir-tools` setup.
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- Fix internal breakage in `elixir-tools` setup.
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[ksonj](https://github.com/ksonj):
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- Add LSP support for Scala via [nvim-metals](https://github.com/scalameta/nvim-metals)
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17
flake.lock
17
flake.lock
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@ -1197,6 +1197,22 @@
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"type": "github"
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"type": "github"
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}
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}
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},
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},
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"plugin-nvim-metals": {
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"flake": false,
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"locked": {
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"lastModified": 1728295172,
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"narHash": "sha256-ja/+MNxZ3H9io9jDwm5rhE6iKNi86a22eCOY75g19O8=",
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"owner": "scalameta",
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"repo": "nvim-metals",
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"rev": "f861db9fda55939797ac1b05238c49b0dcdc3bdb",
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"type": "github"
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},
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"original": {
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"owner": "scalameta",
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"repo": "nvim-metals",
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"type": "github"
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}
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},
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"plugin-nvim-navbuddy": {
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"plugin-nvim-navbuddy": {
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"flake": false,
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"flake": false,
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"locked": {
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"locked": {
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@ -1898,6 +1914,7 @@
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"plugin-nvim-docs-view": "plugin-nvim-docs-view",
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"plugin-nvim-docs-view": "plugin-nvim-docs-view",
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"plugin-nvim-lightbulb": "plugin-nvim-lightbulb",
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"plugin-nvim-lightbulb": "plugin-nvim-lightbulb",
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"plugin-nvim-lspconfig": "plugin-nvim-lspconfig",
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"plugin-nvim-lspconfig": "plugin-nvim-lspconfig",
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"plugin-nvim-metals": "plugin-nvim-metals",
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"plugin-nvim-navbuddy": "plugin-nvim-navbuddy",
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"plugin-nvim-navbuddy": "plugin-nvim-navbuddy",
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"plugin-nvim-navic": "plugin-nvim-navic",
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"plugin-nvim-navic": "plugin-nvim-navic",
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"plugin-nvim-neoclip": "plugin-nvim-neoclip",
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"plugin-nvim-neoclip": "plugin-nvim-neoclip",
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@ -206,6 +206,11 @@
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flake = false;
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flake = false;
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};
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};
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plugin-nvim-metals = {
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url = "github:scalameta/nvim-metals";
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flake = false;
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};
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# Copying/Registers
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# Copying/Registers
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plugin-registers = {
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plugin-registers = {
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url = "github:tversteeg/registers.nvim";
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url = "github:tversteeg/registers.nvim";
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@ -20,6 +20,7 @@ in {
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./python.nix
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./python.nix
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./r.nix
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./r.nix
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./rust.nix
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./rust.nix
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./scala.nix
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./sql.nix
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./sql.nix
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./svelte.nix
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./svelte.nix
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./tailwind.nix
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./tailwind.nix
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149
modules/plugins/languages/scala.nix
Normal file
149
modules/plugins/languages/scala.nix
Normal file
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@ -0,0 +1,149 @@
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{
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config,
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pkgs,
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lib,
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...
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}: let
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inherit (lib.generators) mkLuaInline;
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inherit (lib.modules) mkIf mkMerge;
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inherit (lib.nvim.binds) mkMappingOption;
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inherit (lib.nvim.dag) entryAfter;
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inherit (lib.nvim.lua) toLuaObject;
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inherit (lib.nvim.types) mkGrammarOption luaInline;
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inherit (lib.options) mkOption mkEnableOption mkPackageOption;
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inherit (lib.strings) optionalString;
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inherit (lib.types) attrsOf anything bool;
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listCommandsAction =
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if config.vim.telescope.enable
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then ''require("telescope").extensions.metals.commands()''
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else ''require("metals").commands()'';
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cfg = config.vim.languages.scala;
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usingDap = config.vim.debugger.nvim-dap.enable && cfg.dap.enable;
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usingLualine = config.vim.statusline.lualine.enable;
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in {
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options.vim.languages.scala = {
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enable = mkEnableOption "Scala language support";
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treesitter = {
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enable = mkEnableOption "Scala treesitter" // {default = config.vim.languages.enableTreesitter;};
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package = mkGrammarOption pkgs "scala";
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};
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lsp = {
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enable = mkEnableOption "Scala LSP support (metals)" // {default = config.vim.languages.enableLSP;};
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package = mkPackageOption pkgs "metals" {
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default = ["metals"];
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};
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extraMappings = {
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listCommands = mkMappingOption "List Metals commands" "<leader>lc";
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};
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extraSettings = mkOption {
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type = attrsOf anything;
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description = "Extra settings passed to the metals config. Check nvim-metals docs for available options";
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default = {
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showImplicitArguments = true;
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showImplicitConversionsAndClasses = true;
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showInferredType = true;
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excludedPackages = [
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"akka.actor.typed.javadsl"
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"com.github.swagger.akka.javadsl"
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];
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};
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};
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};
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dap = {
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enable = mkEnableOption "Scala Debug Adapter support (metals)" // {default = config.vim.languages.enableDAP;};
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config = mkOption {
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description = "Lua configuration for dap";
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type = luaInline;
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default = mkLuaInline ''
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dap.configurations.scala = {
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{
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type = "scala",
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request = "launch",
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name = "RunOrTest",
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metals = {
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runType = "runOrTestFile",
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--args = { "firstArg", "secondArg", "thirdArg" }, -- here just as an example
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},
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},
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{
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type = "scala",
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request = "launch",
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name = "Test Target",
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metals = {
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runType = "testTarget",
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},
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},
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}
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'';
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};
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};
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fixShortmess = mkOption {
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type = bool;
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description = "Remove the 'F' flag from shortmess to allow messages to be shown. Without doing this, autocommands that deal with filetypes prohibit messages from being shown";
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default = true;
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};
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};
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config = mkIf cfg.enable (
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mkMerge [
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(mkIf cfg.treesitter.enable {
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vim.treesitter.enable = true;
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vim.treesitter.grammars = [cfg.treesitter.package];
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})
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(mkIf (cfg.lsp.enable || cfg.dap.enable) {
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vim = {
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startPlugins = ["nvim-metals"];
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pluginRC.nvim-metals = entryAfter ["lsp-setup"] ''
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local metals_caps = capabilities -- from lsp-setup
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local attach_metals_keymaps = function(client, bufnr)
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attach_keymaps(client, bufnr) -- from lsp-setup
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vim.api.nvim_buf_set_keymap(bufnr, 'n', '${cfg.lsp.extraMappings.listCommands}', '<cmd>lua ${listCommandsAction}<CR>', {noremap=true, silent=true, desc='Show all Metals commands'})
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end
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metals_config = require('metals').bare_config()
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${optionalString usingLualine "metals_config.init_options.statusBarProvider = 'on'"}
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metals_config.capabilities = metals_caps
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metals_config.on_attach = function(client, bufnr)
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${optionalString usingDap "require('metals').setup_dap()"}
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attach_metals_keymaps(client, bufnr)
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end
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metals_config.settings = ${toLuaObject cfg.lsp.extraSettings}
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metals_config.settings.metalsBinaryPath = "${cfg.lsp.package}/bin/metals"
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metals_config.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
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vim.lsp.diagnostic.on_publish_diagnostics, {
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virtual_text = {
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prefix = '⚠',
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}
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}
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)
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${optionalString cfg.fixShortmess ''vim.opt_global.shortmess:remove("F")''}
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local lsp_group = vim.api.nvim_create_augroup('lsp', { clear = true })
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vim.api.nvim_create_autocmd('FileType', {
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group = lsp_group,
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pattern = {'java', 'scala', 'sbt'},
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callback = function()
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require('metals').initialize_or_attach(metals_config)
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end,
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})
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'';
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};
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})
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]
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);
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}
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