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languages/scala: Add scala language support ()

* 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>
This commit is contained in:
ksonj 2024-10-12 05:43:33 +02:00 committed by GitHub
parent c0790c5494
commit caaacbf59c
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6 changed files with 177 additions and 0 deletions

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@ -69,6 +69,7 @@ isMaximal: {
lsp.server = "clangd"; lsp.server = "clangd";
}; };
scala.enable = isMaximal;
rust = { rust = {
enable = isMaximal; enable = isMaximal;
crates.enable = isMaximal; crates.enable = isMaximal;

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@ -267,3 +267,7 @@ everyone.
- Add support for [base16 theming](https://github.com/RRethy/base16-nvim) under - Add support for [base16 theming](https://github.com/RRethy/base16-nvim) under
`vim.theme` `vim.theme`
- Fix internal breakage in `elixir-tools` setup. - Fix internal breakage in `elixir-tools` setup.
[ksonj](https://github.com/ksonj):
- Add LSP support for Scala via [nvim-metals](https://github.com/scalameta/nvim-metals)

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@ -1197,6 +1197,22 @@
"type": "github" "type": "github"
} }
}, },
"plugin-nvim-metals": {
"flake": false,
"locked": {
"lastModified": 1728295172,
"narHash": "sha256-ja/+MNxZ3H9io9jDwm5rhE6iKNi86a22eCOY75g19O8=",
"owner": "scalameta",
"repo": "nvim-metals",
"rev": "f861db9fda55939797ac1b05238c49b0dcdc3bdb",
"type": "github"
},
"original": {
"owner": "scalameta",
"repo": "nvim-metals",
"type": "github"
}
},
"plugin-nvim-navbuddy": { "plugin-nvim-navbuddy": {
"flake": false, "flake": false,
"locked": { "locked": {
@ -1898,6 +1914,7 @@
"plugin-nvim-docs-view": "plugin-nvim-docs-view", "plugin-nvim-docs-view": "plugin-nvim-docs-view",
"plugin-nvim-lightbulb": "plugin-nvim-lightbulb", "plugin-nvim-lightbulb": "plugin-nvim-lightbulb",
"plugin-nvim-lspconfig": "plugin-nvim-lspconfig", "plugin-nvim-lspconfig": "plugin-nvim-lspconfig",
"plugin-nvim-metals": "plugin-nvim-metals",
"plugin-nvim-navbuddy": "plugin-nvim-navbuddy", "plugin-nvim-navbuddy": "plugin-nvim-navbuddy",
"plugin-nvim-navic": "plugin-nvim-navic", "plugin-nvim-navic": "plugin-nvim-navic",
"plugin-nvim-neoclip": "plugin-nvim-neoclip", "plugin-nvim-neoclip": "plugin-nvim-neoclip",

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@ -206,6 +206,11 @@
flake = false; flake = false;
}; };
plugin-nvim-metals = {
url = "github:scalameta/nvim-metals";
flake = false;
};
# Copying/Registers # Copying/Registers
plugin-registers = { plugin-registers = {
url = "github:tversteeg/registers.nvim"; url = "github:tversteeg/registers.nvim";

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@ -20,6 +20,7 @@ in {
./python.nix ./python.nix
./r.nix ./r.nix
./rust.nix ./rust.nix
./scala.nix
./sql.nix ./sql.nix
./svelte.nix ./svelte.nix
./tailwind.nix ./tailwind.nix

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@ -0,0 +1,149 @@
{
config,
pkgs,
lib,
...
}: let
inherit (lib.generators) mkLuaInline;
inherit (lib.modules) mkIf mkMerge;
inherit (lib.nvim.binds) mkMappingOption;
inherit (lib.nvim.dag) entryAfter;
inherit (lib.nvim.lua) toLuaObject;
inherit (lib.nvim.types) mkGrammarOption luaInline;
inherit (lib.options) mkOption mkEnableOption mkPackageOption;
inherit (lib.strings) optionalString;
inherit (lib.types) attrsOf anything bool;
listCommandsAction =
if config.vim.telescope.enable
then ''require("telescope").extensions.metals.commands()''
else ''require("metals").commands()'';
cfg = config.vim.languages.scala;
usingDap = config.vim.debugger.nvim-dap.enable && cfg.dap.enable;
usingLualine = config.vim.statusline.lualine.enable;
in {
options.vim.languages.scala = {
enable = mkEnableOption "Scala language support";
treesitter = {
enable = mkEnableOption "Scala treesitter" // {default = config.vim.languages.enableTreesitter;};
package = mkGrammarOption pkgs "scala";
};
lsp = {
enable = mkEnableOption "Scala LSP support (metals)" // {default = config.vim.languages.enableLSP;};
package = mkPackageOption pkgs "metals" {
default = ["metals"];
};
extraMappings = {
listCommands = mkMappingOption "List Metals commands" "<leader>lc";
};
extraSettings = mkOption {
type = attrsOf anything;
description = "Extra settings passed to the metals config. Check nvim-metals docs for available options";
default = {
showImplicitArguments = true;
showImplicitConversionsAndClasses = true;
showInferredType = true;
excludedPackages = [
"akka.actor.typed.javadsl"
"com.github.swagger.akka.javadsl"
];
};
};
};
dap = {
enable = mkEnableOption "Scala Debug Adapter support (metals)" // {default = config.vim.languages.enableDAP;};
config = mkOption {
description = "Lua configuration for dap";
type = luaInline;
default = mkLuaInline ''
dap.configurations.scala = {
{
type = "scala",
request = "launch",
name = "RunOrTest",
metals = {
runType = "runOrTestFile",
--args = { "firstArg", "secondArg", "thirdArg" }, -- here just as an example
},
},
{
type = "scala",
request = "launch",
name = "Test Target",
metals = {
runType = "testTarget",
},
},
}
'';
};
};
fixShortmess = mkOption {
type = bool;
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";
default = true;
};
};
config = mkIf cfg.enable (
mkMerge [
(mkIf cfg.treesitter.enable {
vim.treesitter.enable = true;
vim.treesitter.grammars = [cfg.treesitter.package];
})
(mkIf (cfg.lsp.enable || cfg.dap.enable) {
vim = {
startPlugins = ["nvim-metals"];
pluginRC.nvim-metals = entryAfter ["lsp-setup"] ''
local metals_caps = capabilities -- from lsp-setup
local attach_metals_keymaps = function(client, bufnr)
attach_keymaps(client, bufnr) -- from lsp-setup
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'})
end
metals_config = require('metals').bare_config()
${optionalString usingLualine "metals_config.init_options.statusBarProvider = 'on'"}
metals_config.capabilities = metals_caps
metals_config.on_attach = function(client, bufnr)
${optionalString usingDap "require('metals').setup_dap()"}
attach_metals_keymaps(client, bufnr)
end
metals_config.settings = ${toLuaObject cfg.lsp.extraSettings}
metals_config.settings.metalsBinaryPath = "${cfg.lsp.package}/bin/metals"
metals_config.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
vim.lsp.diagnostic.on_publish_diagnostics, {
virtual_text = {
prefix = '',
}
}
)
${optionalString cfg.fixShortmess ''vim.opt_global.shortmess:remove("F")''}
local lsp_group = vim.api.nvim_create_augroup('lsp', { clear = true })
vim.api.nvim_create_autocmd('FileType', {
group = lsp_group,
pattern = {'java', 'scala', 'sbt'},
callback = function()
require('metals').initialize_or_attach(metals_config)
end,
})
'';
};
})
]
);
}