plugin: lsp: use LspAttach for lsp sepcifc maps

Signed-off-by: Brahmajit Das <listout@listout.xyz>

1 files changed, 31 insertions, 0 deletions

diff --git a/plugin/lsp.lua b/plugin/lsp.lua
index e1bae06..92d0119 100644
--- a/plugin/lsp.lua
+++ b/plugin/lsp.lua
@@ -2,6 +2,37 @@ vim.lsp.enable({
 	"lua_ls"
 })
 
+-- Use LspAttach autocommand to only map the following keys
+-- after the language server attaches to the current buffer
+vim.api.nvim_create_autocmd('LspAttach', {
+	group = vim.api.nvim_create_augroup('UserLspConfig', {}),
+	callback = function(ev)
+		-- Enable completion triggered by <c-x><c-o>
+		vim.bo[ev.buf].omnifunc = 'v:lua.vim.lsp.omnifunc'
+
+		-- Buffer local mappings.
+		-- See `:help vim.lsp.*` for documentation on any of the below functions
+		local opts = { buffer = ev.buf }
+		vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, opts)
+		vim.keymap.set('n', 'gd', vim.lsp.buf.definition, opts)
+		vim.keymap.set('n', 'K', vim.lsp.buf.hover, opts)
+		vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, opts)
+		vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, opts)
+		vim.keymap.set('n', '<leader>wa', vim.lsp.buf.add_workspace_folder, opts)
+		vim.keymap.set('n', '<leader>wr', vim.lsp.buf.remove_workspace_folder, opts)
+		vim.keymap.set('n', '<leader>wl', function()
+			print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
+		end, opts)
+		vim.keymap.set('n', '<leader>D', vim.lsp.buf.type_definition, opts)
+		vim.keymap.set('n', '<leader>rn', vim.lsp.buf.rename, opts)
+		vim.keymap.set({ 'n', 'v' }, '<leader>ca', vim.lsp.buf.code_action, opts)
+		vim.keymap.set('n', 'gr', vim.lsp.buf.references, opts)
+		vim.keymap.set({ 'n', 'v' }, '<leader>f', function()
+			vim.lsp.buf.format { async = true }
+		end, opts)
+	end,
+})
+
 local signs = { Error = "󰅚 ", Warn = " ", Hint = " ", Info = " " }
 vim.diagnostic.config({
 	signs = {