Lua config for nvim

nvim.lua

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+local Plug = vim.fn['plug#']
+
+-- PLUGINS
+vim.call('plug#begin')
+
+-- General plugins
+Plug('vim-airline/vim-airline')
+Plug('vim-airline/vim-airline-themes')
+Plug('tpope/vim-abolish')
+Plug('lambdalisue/suda.vim')
+Plug('https://gitea.tforgione.fr/tforgione/peach.git')
+
+-- Language specific plugins
+Plug('rust-lang/rust.vim')
+Plug('ElmCast/elm-vim')
+Plug('cespare/vim-toml')
+Plug('kaarmu/typst.vim')
+
+vim.call('plug#end')
+
+-- INDENTATION
+vim.opt.expandtab = true
+vim.opt.tabstop = 4
+vim.opt.shiftwidth = 4
+vim.opt.autoindent = true
+vim.opt.textwidth = 120
+
+-- UI
+vim.opt.number = true
+vim.opt.showcmd = true
+vim.opt.wildmenu = true
+vim.opt.lazyredraw = true
+vim.opt.encoding = 'utf8'
+vim.opt.clipboard = 'unnamedplus'
+vim.opt.updatecount = 50
+vim.opt.mouse = 'a'
+vim.opt.guicursor = nil
+vim.opt.updatetime = 300
+
+vim.opt.list = true
+vim.opt.listchars:append({ trail = '·' })
+
+-- Auto remove trailing spaces
+vim.api.nvim_create_autocmd({'BufWritePre'}, {
+  pattern = {'*'},
+  callback = function(ev)
+      vim.cmd('%s/\\s\\+$//e')
+  end
+})
+
+-- COLOR --
+pcall(vim.cmd.colorscheme, 'peach')
+vim.cmd.highlight({'BadWhitespace', 'ctermbg=red', 'guibg=red'})
+vim.g.airline_powerline_fonts = 1
+vim.g.airline_theme = 'dark'
+
+-- SEARCHING
+vim.opt.title = true
+vim.opt.showmatch = true
+vim.opt.hlsearch = true
+vim.opt.incsearch = true
+
+-- BACKUPS
+vim.opt.undofile = true
+vim.opt.undolevels = 1000
+vim.opt.undoreload = 10000
+vim.opt.undodir = os.getenv('HOME') .. '/.nvim/undo'
+
+vim.g.backup_dir = os.getenv('HOME') .. '/.nvim/backups'
+
+vim.api.nvim_create_autocmd({'BufWritePost'}, {
+    pattern = {'*'},
+    callback = function(ev)
+        local backup_path = vim.g.backup_dir .. '/' .. vim.api.nvim_buf_get_name(0):gsub('/', '\\%%')
+        vim.cmd('silent w! ' .. backup_path)
+    end
+})
+
+-- LSPs
+-- Config
+vim.opt.completeopt = { 'menuone', 'noselect' }
+
+vim.diagnostic.config {
+    signs = {
+        text = {
+            [vim.diagnostic.severity.ERROR] = '',
+            [vim.diagnostic.severity.WARN] = '',
+            [vim.diagnostic.severity.HINT] = '',
+        },
+        color = {},
+    },
+    float = {
+      header = false,
+      border = 'rounded',
+  }
+}
+
+-- Show diagnostics on hover
+vim.api.nvim_create_autocmd({'CursorHold'}, {
+    pattern = {'*'},
+    callback = function(ev)
+        vim.diagnostic.open_float()
+    end
+})
+
+
+
+-- Shortcuts for mapping shortcuts
+local map = function(type, key, value)
+    vim.api.nvim_buf_set_keymap(0, type, key, value, { noremap = true, silent = true });
+end
+
+vim.api.nvim_create_autocmd("LspAttach", {
+    callback = function(args)
+        local client = vim.lsp.get_client_by_id(args.data.client_id)
+
+        -- Enable auto-completion. Note: Use CTRL-Y to select an item.
+        if client:supports_method('textDocument/completion') then
+
+            -- Trigger autocompletion on EVERY keypress. May be slow!
+            local chars = {}; for i = 32, 126 do table.insert(chars, string.char(i)) end
+            client.server_capabilities.completionProvider.triggerCharacters = chars
+
+            vim.lsp.completion.enable(true, client.id, args.buf, {
+                autotrigger = true,
+                convert = function(item)
+                    return { abbr = item.label:gsub('%b()', '') }
+                end,
+            })
+        end
+
+        -- Auto-format on save.
+        if not client:supports_method('textDocument/willSaveWaitUntil') and client:supports_method('textDocument/formatting') then
+            vim.api.nvim_create_autocmd('BufWritePre', {
+                group = vim.api.nvim_create_augroup('my.lsp', {clear=false}),
+                buffer = args.buf,
+                callback = function()
+                    vim.lsp.buf.format({ bufnr = args.buf, id = client.id, timeout_ms = 1000 })
+                end,
+            })
+        end
+
+        -- Don't use lsp to manage colorscheme
+        client.server_capabilities.semanticTokensProvider = nil
+
+        -- Some nice shortcuts
+        map('n','gD','<cmd>lua vim.lsp.buf.declaration()<CR>')
+        map('n','gd','<cmd>lua vim.lsp.buf.definition()<CR>')
+        map('n','K','<cmd>lua vim.lsp.buf.hover()<CR>')
+        map('n','gr','<cmd>lua vim.lsp.buf.references()<CR>')
+        map('n','gs','<cmd>lua vim.lsp.buf.signature_help()<CR>')
+        map('n','gi','<cmd>lua vim.lsp.buf.implementation()<CR>')
+        map('n','gt','<cmd>lua vim.lsp.buf.type_definition()<CR>')
+        map('n','<leader>gw','<cmd>lua vim.lsp.buf.document_symbol()<CR>')
+        map('n','<leader>gW','<cmd>lua vim.lsp.buf.workspace_symbol()<CR>')
+        map('n','<leader>ah','<cmd>lua vim.lsp.buf.hover()<CR>')
+        map('n','<leader>af','<cmd>lua vim.lsp.buf.code_action()<CR>')
+        map('n','<leader>ee','<cmd>lua vim.lsp.util.show_line_diagnostics()<CR>')
+        map('n','<leader>rn','<cmd>lua vim.lsp.buf.rename()<CR>')
+        map('n','<leader>=', '<cmd>lua vim.lsp.buf.formatting()<CR>')
+        map('n','<leader>ai','<cmd>lua vim.lsp.buf.incoming_calls()<CR>')
+        map('n','<leader>ao','<cmd>lua vim.lsp.buf.outgoing_calls()<CR>')
+    end,
+});
+
+-- Rust
+vim.lsp.config['rust'] = {
+    cmd = { 'rustup', 'run', 'stable', 'rust-analyzer' },
+    filetypes = { 'rust' },
+    root_markers = { 'Cargo.toml' },
+}
+
+vim.lsp.enable('rust')
+
+-- Elm
+vim.lsp.config['elm'] = {
+    cmd = { 'elm-language-server' },
+    filetypes = { 'elm' },
+    root_markers = { 'elm.json' },
+}
+
+vim.lsp.enable('elm')
+
+-- Python
+vim.lsp.config['python'] = {
+    cmd = { 'pylsp' },
+    filetypes = { 'python' },
+}
+
+vim.lsp.enable('python')