init.lua

-- Lua config from this blog post:
-- https://vonheikemen.github.io/devlog/tools/simple-neovim-config/
-- Dependencies:
-- https://github.com/neovim/nvim-lspconfig
-- https://github.com/echasnovski/mini.nvim

vim.o.number = true
vim.o.tabstop = 2
vim.o.shiftwidth = 2
vim.o.smartcase = true
vim.o.ignorecase = true
vim.o.wrap = false
vim.o.hlsearch = false
vim.o.signcolumn = 'yes'

-- Space as the leader key
vim.g.mapleader = ' '

-- Basic clipboard interaction
vim.keymap.set({'n', 'x'}, 'gy', '"+y', {desc = 'Copy to clipboard'})
vim.keymap.set({'n', 'x'}, 'gp', '"+p', {desc = 'Paste clipboard text'})

-- Command shortcuts
vim.keymap.set('n', '<leader>w', '<cmd>write<cr>', {desc = 'Save file'})
vim.keymap.set('n', '<leader>q', '<cmd>quitall<cr>', {desc = 'Exit vim'})

local ok_theme = pcall(vim.cmd.colorscheme, 'retrobox')
if not ok_theme then
  vim.cmd.colorscheme('habamax')
end

require('mini.snippets').setup({})
require('mini.completion').setup({})

require('mini.files').setup({})
vim.keymap.set('n', '<leader>e', '<cmd>lua MiniFiles.open()<cr>', {desc = 'File explorer'})

require('mini.pick').setup({})
vim.keymap.set('n', '<leader><space>', '<cmd>Pick buffers<cr>', {desc = 'Search open files'})
vim.keymap.set('n', '<leader>ff', '<cmd>Pick files<cr>', {desc = 'Search all files'})
vim.keymap.set('n', '<leader>fh', '<cmd>Pick help<cr>', {desc = 'Search help tags'})

-- List of compatible language servers is here:
-- https://github.com/neovim/nvim-lspconfig/blob/master/doc/configs.md
require('lspconfig').gopls.setup({})
require('lspconfig').rust_analyzer.setup({})

vim.api.nvim_create_autocmd('LspAttach', {
  desc = 'LSP actions',
  callback = function(event)
    local opts = {buffer = event.buf}

    -- Display documentation of the symbol under the cursor
    vim.keymap.set('n', 'K', '<cmd>lua vim.lsp.buf.hover()<cr>', opts)

    -- Jump to the definition
    vim.keymap.set('n', 'gd', '<cmd>lua vim.lsp.buf.definition()<cr>', opts)

    -- Format current file
    vim.keymap.set({'n', 'x'}, 'gq', '<cmd>lua vim.lsp.buf.format({async = true})<cr>', opts)

    -- Displays a function's signature information
    vim.keymap.set('i', '<C-s>', '<cmd>lua vim.lsp.buf.signature_help()<cr>', opts)

    -- Jump to declaration
    vim.keymap.set('n', '<leader>ld', '<cmd>lua vim.lsp.buf.declaration()<cr>', opts)

    -- Lists all the implementations for the symbol under the cursor
    vim.keymap.set('n', '<leader>li', '<cmd>lua vim.lsp.buf.implementation()<cr>', opts)

    -- Jumps to the definition of the type symbol
    vim.keymap.set('n', '<leader>lt', '<cmd>lua vim.lsp.buf.type_definition()<cr>', opts)

    -- Lists all the references
    vim.keymap.set('n', '<leader>lr', '<cmd>lua vim.lsp.buf.references()<cr>', opts)

    -- Renames all references to the symbol under the cursor
    vim.keymap.set('n', '<leader>ln', '<cmd>lua vim.lsp.buf.rename()<cr>', opts)

    -- Selects a code action available at the current cursor position
    vim.keymap.set('n', '<leader>la', '<cmd>lua vim.lsp.buf.code_action()<cr>', opts)
  end,
})