Move lua config to its own lua files

Embedding lua in vimscript using lua here doc is not ideal for
editing.

1 files changed, 144 insertions, 0 deletions

diff --git a/lua/lsp/init.lua b/lua/lsp/init.lua
new file mode 100644
index 0000000..57b7392
--- /dev/null
+++ b/lua/lsp/init.lua
@@ -0,0 +1,144 @@
+local on_attach = function(client, bufnr)
+  local function buf_set_keymap(...) vim.api.nvim_buf_set_keymap(bufnr, ...) end
+  local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end
+
+  buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')
+
+  -- Mappings.
+  local opts = { noremap=true, silent=true }
+  buf_set_keymap('n', 'gD', '<Cmd>lua vim.lsp.buf.declaration()<CR>', opts)
+  buf_set_keymap('n', 'gd', '<Cmd>lua vim.lsp.buf.definition()<CR>', opts)
+  buf_set_keymap('n', 'K', '<Cmd>lua vim.lsp.buf.hover()<CR>', opts)
+  buf_set_keymap('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
+  buf_set_keymap('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
+  buf_set_keymap('n', '<space>wa', '<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>', opts)
+  buf_set_keymap('n', '<space>wr', '<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>', opts)
+  buf_set_keymap('n', '<space>wl', '<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>', opts)
+  buf_set_keymap('n', '<space>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
+  buf_set_keymap('n', '<space>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
+  buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
+  buf_set_keymap('n', '<space>e', '<cmd>lua vim.lsp.diagnostic.show_line_diagnostics()<CR>', opts)
+  buf_set_keymap('n', '[d', '<cmd>lua vim.lsp.diagnostic.goto_prev()<CR>', opts)
+  buf_set_keymap('n', ']d', '<cmd>lua vim.lsp.diagnostic.goto_next()<CR>', opts)
+  buf_set_keymap('n', '<space>q', '<cmd>lua vim.lsp.diagnostic.set_loclist()<CR>', opts)
+
+  -- Show diagnostic automatically when cursor is on hold.
+  vim.api.nvim_command('autocmd CursorHold <buffer> lua vim.lsp.diagnostic.show_line_diagnostics()')
+
+  -- Set some keybinds conditional on server capabilities
+  if client.resolved_capabilities.document_formatting then
+    buf_set_keymap("n", "<space>f", "<cmd>lua vim.lsp.buf.formatting()<CR>", opts)
+  end
+  if client.resolved_capabilities.document_range_formatting then
+    buf_set_keymap("x", "<space>f", "<cmd>lua vim.lsp.buf.range_formatting()<CR><ESC>", opts)
+  end
+
+  -- Set autocommands conditional on server_capabilities
+  if client.resolved_capabilities.document_highlight then
+    vim.api.nvim_exec([[
+      hi link LspReferenceRead Visual
+      hi link LspReferenceText Visual
+      hi link LspReferenceWrite Visual
+      augroup lsp_document_highlight
+        autocmd! * <buffer>
+        autocmd CursorHold <buffer> lua vim.lsp.buf.document_highlight()
+        autocmd CursorMoved <buffer> lua vim.lsp.buf.clear_references()
+      augroup END
+    ]], false)
+  end
+
+  local msg = string.format('Language server %s started!' , client.name)
+  vim.api.nvim_echo({{msg, 'MoreMsg'}, }, false, {})
+end
+
+local lspconfig = require("lspconfig")
+lspconfig.pyls.setup {
+    on_attach = on_attach,
+    settings = {
+        pyls = {
+            plugins = {
+                flake8 = {enabled = false},
+                pylint = {enabled = true, executable = "pylint"},
+                pyflakes = {enabled = false},
+                pycodestyle = {enabled = false},
+                jedi_completion = {fuzzy = true},
+                pyls_isort = {enabled = true},
+                pyls_mypy = {enabled = true}
+            }
+        }
+    }
+}
+
+-- set up ccls, see https://github.com/neovim/nvim-lspconfig/blob/master/CONFIG.md#ccls
+if vim.fn.executable('ccls') then
+  lspconfig.ccls.setup {
+    on_attach = on_attach,
+    root_dir = lspconfig.util.root_pattern("compile_commands.json", ".ccls", ".git"),
+    init_options = {
+      highlight = { lsRanges = true }
+    }
+  }
+end
+
+-- set up vim-language-server
+lspconfig.vimls.setup{ on_attach = on_attach }
+
+-- Change diagnostic signs.
+vim.fn.sign_define('LspDiagnosticsSignError', { text = "✗", texthl = "LspDiagnosticsDefaultError" })
+vim.fn.sign_define('LspDiagnosticsSignWarning', { text = "!", texthl = "LspDiagnosticsDefaultWarning" })
+vim.fn.sign_define('LspDiagnosticsSignInformation', { text = "", texthl = "LspDiagnosticsDefaultInformation" })
+vim.fn.sign_define('LspDiagnosticsSignHint', { text = "", texthl = "LspDiagnosticsDefaultHint" })
+
+vim.lsp.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
+  vim.lsp.diagnostic.on_publish_diagnostics, {
+    underline = false,
+    virtual_text = false,
+    signs = true,
+    update_in_insert = false,
+  }
+)
+
+-- The following settings works with the bleeding edge neovim.
+-- See https://github.com/neovim/neovim/pull/13998.
+-- vim.lsp.handlers["textDocument/hover"] = vim.lsp.with(
+--   vim.lsp.handlers.hover, {
+--     border = 'single'
+--     }
+-- )
+
+-- nvim-compe settings
+require'compe'.setup {
+  enabled = true;
+  autocomplete = true;
+  debug = false;
+  min_length = 1;
+  preselect = 'always';
+  throttle_time = 80;
+  source_timeout = 200;
+  incomplete_delay = 400;
+  max_abbr_width = 100;
+  max_kind_width = 100;
+  max_menu_width = 100;
+  documentation = true;
+
+  source = {
+    path = true;
+    buffer = true;
+    spell = true;
+    emoji = true;
+    nvim_lsp = true;
+    nvim_lua = true;
+    ultisnips = true;
+    calc = false;
+    vsnip = false;
+  };
+}
+
+vim.o.completeopt = "menuone,noselect"
+
+-- nvim-comple mappings
+vim.api.nvim_set_keymap('i', '<C-Space>', 'compe#complete()', {expr = true})
+vim.api.nvim_set_keymap('i', '<CR>', "compe#confirm('<CR>')", {expr = true})
+vim.api.nvim_set_keymap('i', '<C-e>', "compe#close('<C-e>')", {expr = true})
+vim.api.nvim_set_keymap('i', '<C-f>', "compe#scroll({'delta': +4})", {expr = true})
+vim.api.nvim_set_keymap('i', '<C-d>', "compe#scroll({'delta': -4})", {expr = true})