diff options
Diffstat (limited to 'use-cases/development/neovim')
| -rw-r--r-- | use-cases/development/neovim/default.nix | 29 | ||||
| -rw-r--r-- | use-cases/development/neovim/filetype.nix | 20 | ||||
| -rw-r--r-- | use-cases/development/neovim/lsp.nix | 89 |
3 files changed, 138 insertions, 0 deletions
diff --git a/use-cases/development/neovim/default.nix b/use-cases/development/neovim/default.nix new file mode 100644 index 0000000..5c265b8 --- /dev/null +++ b/use-cases/development/neovim/default.nix @@ -0,0 +1,29 @@ +# This file contains the HM configuration options for Neovim. + +{ pkgs, lib, ... }: + +{ + imports = + [ + ./lsp.nix + ./filetype.nix + ]; + + programs.neovim = { + enable = true; + + # Typing `vi`, `vim`, or `vimdiff` will also run neovim. + viAlias = true; + vimAlias = true; + vimdiffAlias = true; + }; + + # Set Neovim as the default editor. + home.sessionVariables.EDITOR = "nvim"; + home.sessionVariables.VISUAL = "nvim"; + + # Use neovim as man pager. + home.sessionVariables.MANPAGER = "nvim +Man!"; +} + +# vi: foldmethod=marker diff --git a/use-cases/development/neovim/filetype.nix b/use-cases/development/neovim/filetype.nix new file mode 100644 index 0000000..66d5e68 --- /dev/null +++ b/use-cases/development/neovim/filetype.nix @@ -0,0 +1,20 @@ +# This module configures various syntax/filetype plugins for Neovim. + +{ pkgs, ... }: + +let + vim-noweb = pkgs.vimUtils.buildVimPlugin { + pname = "vim-noweb"; + version = "26-08-2023"; # day of retrieval + src = pkgs.fetchzip { + url = "https://metaed.com/papers/vim-noweb/vim-noweb.tgz"; + hash = "sha256-c5eUZiKIjAfjJ33l821h5DjozMpMf0CaK03QIkSUfxg="; + }; + }; +in +{ + programs.neovim.plugins = with pkgs.vimPlugins; [ + vim-nix + vim-noweb + ]; +} diff --git a/use-cases/development/neovim/lsp.nix b/use-cases/development/neovim/lsp.nix new file mode 100644 index 0000000..0c7321d --- /dev/null +++ b/use-cases/development/neovim/lsp.nix @@ -0,0 +1,89 @@ +# This module sets up LSP server configurations for Neovim. It is waaay +# overcomplicated as it kind of turned into an experiment in generating Lua +# code from a Nix attrset. + +{ pkgs, lib, ... }: + +let + servers = { + pyright.cmd = [ "${pkgs.pyright}/bin/pyright-langserver" ]; + }; + defaultConfig = { + flags.debounce_text_changes = 150; + }; + combinedConfig = lib.mapAttrs (name: value: value // defaultConfig) servers; + + nixToLua = s: + if builtins.isAttrs s then + let + renderAttr = name: value: "[ [==========[" + name + "]==========] ] = " + (nixToLua value); + attrsList = map (name: renderAttr name s.${name}) (lib.attrNames s); + attrsListStr = lib.concatStringsSep ", " attrsList; + in + "{ ${attrsListStr} }" + else if builtins.isList s then + "{ " + (lib.concatStringsSep ", " (map nixToLua s)) + " }" + else if builtins.isString s then + # Oh boy I sure hope `s` doesn't contain "]==========]". + "[==========[" + s + "]==========]" + else if builtins.isInt s || builtins.isFloat s then + toString s + else + throw "Cannot convert ${builtins.typeOf s} to Lua value!"; + combinedConfigStr = nixToLua combinedConfig; +in +{ + programs.neovim.plugins = [ + { + plugin = pkgs.vimPlugins.nvim-lspconfig; + type = "lua"; + config = '' + local lspconfig = require("lspconfig") + local util = require("lspconfig.util") + + -- Mappings. + -- See `:help vim.diagnostic.*` for documentation on any of the below functions + local opts = { noremap=true, silent=true } + vim.keymap.set('n', '<leader>e', vim.diagnostic.open_float, opts) + vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, opts) + vim.keymap.set('n', ']d', vim.diagnostic.goto_next, opts) + vim.keymap.set('n', '<leader>q', vim.diagnostic.setloclist, opts) + + -- Use an on_attach function to only map the following keys + -- after the language server attaches to the current buffer + local on_attach = function(client, bufnr) + -- Enable completion triggered by <c-x><c-o> + vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc') + + -- Mappings. + -- See `:help vim.lsp.*` for documentation on any of the below functions + local bufopts = { noremap=true, silent=true, buffer=bufnr } + vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, bufopts) + vim.keymap.set('n', 'gd', vim.lsp.buf.definition, bufopts) + vim.keymap.set('n', 'K', vim.lsp.buf.hover, bufopts) + vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, bufopts) + vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, bufopts) + vim.keymap.set('n', '<leader>wa', vim.lsp.buf.add_workspace_folder, bufopts) + vim.keymap.set('n', '<leader>wr', vim.lsp.buf.remove_workspace_folder, bufopts) + vim.keymap.set('n', '<leader>wl', function() + print(vim.inspect(vim.lsp.buf.list_workspace_folders())) + end, bufopts) + vim.keymap.set('n', '<leader>D', vim.lsp.buf.type_definition, bufopts) + vim.keymap.set('n', '<leader>rn', vim.lsp.buf.rename, bufopts) + vim.keymap.set('n', '<leader>ca', vim.lsp.buf.code_action, bufopts) + vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts) + vim.keymap.set('n', '<leader>f', function() vim.lsp.buf.format { async = true } end, bufopts) + vim.keymap.set('n', '<leader>s', function() vim.cmd[[ClangdSwitchSourceHeader]] end, bufopts) + end + + -- Use a loop to conveniently call 'setup' on multiple servers and + -- map buffer local keybindings when the language server attaches + local servers = ${combinedConfigStr}; + for server, config in pairs(servers) do + config.on_attach = on_attach; -- inject lua event handler; not elegant! + lspconfig[server].setup(config) + end + ''; + } + ]; +} |