从零开始配置 Neovim(Nvim)

-- define common options
local opts = {
    noremap = true,      -- non-recursive
    silent = true,       -- do not show message
}

-----------------
-- Normal mode --
-----------------

-- Hint: see `:h vim.map.set()`
-- Better window navigation
vim.keymap.set('n', '<C-h>', '<C-w>h', opts)
vim.keymap.set('n', '<C-j>', '<C-w>j', opts)
vim.keymap.set('n', '<C-k>', '<C-w>k', opts)
vim.keymap.set('n', '<C-l>', '<C-w>l', opts)

-- Resize with arrows
-- delta: 2 lines
vim.keymap.set('n', '<C-Up>', ':resize -2<CR>', opts)
vim.keymap.set('n', '<C-Down>', ':resize +2<CR>', opts)
vim.keymap.set('n', '<C-Left>', ':vertical resize -2<CR>', opts)
vim.keymap.set('n', '<C-Right>', ':vertical resize +2<CR>', opts)

-----------------
-- Visual mode --
-----------------

-- Hint: start visual mode with the same area as the previous area and the same mode
vim.keymap.set('v', '<', '<gv', opts)
vim.keymap.set('v', '>', '>gv', opts)

... -- 省略其他行
require("lazy").setup({
    ... -- 省略其他行
    {
        "saghen/blink.cmp",
        -- optional: provides snippets for the snippet source
        dependencies = { "rafamadriz/friendly-snippets" },

        -- use a release tag to download pre-built binaries
        version = "*",
        -- AND/OR build from source, requires nightly: https://rust-lang.github.io/rustup/concepts/channels.html#working-with-nightly-rust
        -- build = 'cargo build --release',
        -- If you use nix, you can build from source using latest nightly rust with:
        -- build = 'nix run .#build-plugin',

        opts = {
            -- 'default' (recommended) for mappings similar to built-in completions (C-y to accept)
            -- 'super-tab' for mappings similar to vscode (tab to accept)
            -- 'enter' for enter to accept
            -- 'none' for no mappings
            --
            -- All presets have the following mappings:
            -- C-space: Open menu or open docs if already open
            -- C-n/C-p or Up/Down: Select next/previous item
            -- C-e: Hide menu
            -- C-k: Toggle signature help (if signature.enabled = true)
            --
            -- See :h blink-cmp-config-keymap for defining your own keymap
            keymap = {
                -- Each keymap may be a list of commands and/or functions
                preset = "enter",
                -- Select completions
                ["<Up>"] = { "select_prev", "fallback" },
                ["<Down>"] = { "select_next", "fallback" },
                ["<Tab>"] = { "select_next", "fallback" },
                ["<S-Tab>"] = { "select_prev", "fallback" },
                -- Scroll documentation
                ["<C-b>"] = { "scroll_documentation_up", "fallback" },
                ["<C-f>"] = { "scroll_documentation_down", "fallback" },
                -- Show/hide signature
                ["<C-k>"] = { "show_signature", "hide_signature", "fallback" },
            },

            appearance = {
                -- 'mono' (default) for 'Nerd Font Mono' or 'normal' for 'Nerd Font'
                -- Adjusts spacing to ensure icons are aligned
                nerd_font_variant = "mono",
            },

            sources = {
                -- `lsp`, `buffer`, `snippets`, `path` and `omni` are built-in
                -- so you don't need to define them in `sources.providers`
                default = { "lsp", "path", "snippets", "buffer" },

                -- Sources are configured via the sources.providers table
            },

            -- (Default) Rust fuzzy matcher for typo resistance and significantly better performance
            -- You may use a lua implementation instead by using `implementation = "lua"` or fallback to the lua implementation,
            -- when the Rust fuzzy matcher is not available, by using `implementation = "prefer_rust"`
            --
            -- See the fuzzy documentation for more information
            fuzzy = { implementation = "prefer_rust_with_warning" },
            completion = {
                -- The keyword should only matchh against the text before
                keyword = { range = "prefix" },
                menu = {
                    -- Use treesitter to highlight the label text for the given list of sources
                    draw = {
                        treesitter = { "lsp" },
                    },
                },
                -- Show completions after tying a trigger character, defined by the source
                trigger = { show_on_trigger_character = true },
                documentation = {
                    -- Show documentation automatically
                    auto_show = true,
                },
            },

            -- Signature help when tying
            signature = { enabled = true },
        },
        opts_extend = { "sources.default" },
    }
})

... -- 省略其他行
-- Set different settings for different languages' LSP
-- LSP list: https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md
-- How to use setup({}): https://github.com/neovim/nvim-lspconfig/wiki/Understanding-setup-%7B%7D
--     - the settings table is sent to the LSP
--     - on_attach: a lua callback function to run after LSP atteches to a given buffer
local lspconfig = require('lspconfig')

-- Customized on_attach function
-- See `:help vim.diagnostic.*` for documentation on any of the below functions
local opts = { noremap = true, silent = true }
vim.keymap.set('n', '<space>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', '<space>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')

    -- 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', '<space>wa', vim.lsp.buf.add_workspace_folder, bufopts)
    vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, bufopts)
    vim.keymap.set('n', '<space>wl', function()
        print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
    end, bufopts)
    vim.keymap.set('n', '<space>D', vim.lsp.buf.type_definition, bufopts)
    vim.keymap.set('n', '<space>rn', vim.lsp.buf.rename, bufopts)
    vim.keymap.set('n', '<space>ca', vim.lsp.buf.code_action, bufopts)
    vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts)
    vim.keymap.set("n", "<space>f", function()
        vim.lsp.buf.format({ async = true })
    end, bufopts)
end

-- Configure each language
-- How to add LSP for a specific language?
-- 1. use `:Mason` to install corresponding LSP
-- 2. add configuration below
lspconfig.pylsp.setup({
	on_attach = on_attach,
})