1 files changed, 105 insertions, 0 deletions
diff --git a/after/plugin/lsp.lua b/after/plugin/lsp.lua
new file mode 100644
index 0000000..50b6201
--- /dev/null
+++ b/after/plugin/lsp.lua
@@ -0,0 +1,105 @@
+local status_ok, lspconfig = pcall(require, "lspconfig")
+if not status_ok then
+	return
+end
+
+local function lsp_keymaps(bufnr)
+  local map = function(m, lhs, rhs)
+    local opts = {remap = false, silent = true, buffer = bufnr}
+    vim.keymap.set(m, lhs, rhs, opts)
+  end
+
+  -- LSP actions
+  map('n', 'K', '<cmd>lua vim.lsp.buf.hover()<cr>')
+  map('n', 'gd', '<cmd>lua vim.lsp.buf.definition()<cr>')
+  map('n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<cr>')
+  map('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<cr>')
+  map('n', 'go', '<cmd>lua vim.lsp.buf.type_definition()<cr>')
+  map('n', 'gr', '<cmd>lua vim.lsp.buf.references()<cr>')
+  map('n', '<S-Tab>', '<cmd>lua vim.lsp.buf.signature_help()<cr>')
+  map('n', '<F2>', '<cmd>lua vim.lsp.buf.rename()<cr>')
+  map('n', '<F4>', '<cmd>lua vim.lsp.buf.code_action()<cr>')
+
+  -- Diagnostics
+  map('n', '<Tab>', '<cmd>lua vim.diagnostic.open_float()<cr>')
+  map('n', '[d', '<cmd>lua vim.diagnostic.goto_prev()<cr>')
+  map('n', ']d', '<cmd>lua vim.diagnostic.goto_next()<cr>')
+end
+
+local function lsp_settings()
+  local sign = function(opts)
+    vim.fn.sign_define(opts.name, {
+      texthl = opts.name,
+      text = opts.text,
+      numhl = ''
+    })
+  end
+
+  sign({name = 'DiagnosticSignError', text = 'x'})
+  sign({name = 'DiagnosticSignWarn', text = '!'})
+  sign({name = 'DiagnosticSignHint', text = 'h'})
+  sign({name = 'DiagnosticSignInfo', text = 'i'})
+
+  vim.diagnostic.config({
+    virtual_text = false,
+    signs = true,
+    update_in_insert = false,
+    underline = true,
+    severity_sort = true,
+    float = {
+      focusable = false,
+      show_header = true,
+      style = 'minimal',
+      border = 'shadow',
+      source = 'always',
+      header = '',
+      prefix = '* ',
+    },
+  })
+
+  vim.lsp.handlers['textDocument/hover'] = vim.lsp.with( vim.lsp.handlers.hover,
+    { border = 'shadow', }
+  )
+
+  vim.lsp.handlers['textDocument/signatureHelp'] = vim.lsp.with(
+    vim.lsp.handlers.signature_help,
+    {border = 'shadow'}
+  )
+
+  local command = vim.api.nvim_create_user_command
+
+  command('LspWorkspaceAdd', function()
+    vim.lsp.buf.add_workspace_folder()
+  end, {desc = 'Add folder to workspace'})
+
+  command('LspWorkspaceList', function()
+    vim.notify(vim.inspect(vim.lsp.buf.list_workspace_folders()))
+  end, {desc = 'List workspace folders'})
+
+  command('LspWorkspaceRemove', function()
+    vim.lsp.buf.remove_workspace_folder()
+  end, {desc = 'Remove folder from workspace'})
+end
+
+local function lsp_attach(client, bufnr)
+  local buf_command = vim.api.nvim_buf_create_user_command
+
+  lsp_keymaps(bufnr)
+
+  buf_command(bufnr, 'LspFormat', function()
+    vim.lsp.buf.format()
+  end, {desc = 'Format buffer with language server'})
+end
+
+lsp_settings()
+
+require('mason').setup({})
+require('mason-lspconfig').setup({})
+
+local get_servers = require('mason-lspconfig').get_installed_servers
+for _, server_name in ipairs(get_servers()) do
+  lspconfig[server_name].setup({
+    on_attach = lsp_attach,
+    capabilities = require('cmp_nvim_lsp').default_capabilities(),
+  })
+end