From b9ef74b412c2406b2f64f589aa8388e4778c4ce0 Mon Sep 17 00:00:00 2001
From: Felipe Contreras <felipe.contreras.s@gmail.com>
Date: Mon, 13 Dec 2021 22:04:05 -0300
Subject: [PATCH] Agragados mappings para los LSP

---
 init.lua | 46 ++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 42 insertions(+), 4 deletions(-)

diff --git a/init.lua b/init.lua
index 688c98c..fca2ae4 100644
--- a/init.lua
+++ b/init.lua
@@ -66,10 +66,47 @@ ts.setup {ensure_installed = 'maintained', highlight = {enable = true, indent =
 
 ---- LSP ----
 local lsp = require 'lspconfig'
--- Golang --
-require'lspconfig'.golangci_lint_ls.setup{on_attach=require'completion'.on_attach}
--- Rust --
-require'lspconfig'.rust_analyzer.setup{on_attach=require'completion'.on_attach}
+
+-- Use an on_attach function to only map the following keys
+-- after the language server attaches to the current buffer
+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
+
+  -- Enable completion triggered by <c-x><c-o>
+  buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')
+
+  -- Mappings.
+  local opts = { noremap=true, silent=true }
+
+  -- See `:help vim.lsp.*` for documentation on any of the below functions
+  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', '<Leader>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
+  buf_set_keymap('n', '<Leader>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
+  buf_set_keymap('n', '<Leader>ca', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
+  buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
+  buf_set_keymap('n', '<Leader>e', '<cmd>lua vim.diagnostic.open_float()<CR>', opts)
+  buf_set_keymap('n', '[d', '<cmd>lua vim.diagnostic.goto_prev()<CR>', opts)
+  buf_set_keymap('n', ']d', '<cmd>lua vim.diagnostic.goto_next()<CR>', opts)
+  buf_set_keymap('n', '<Leader>q', '<cmd>lua vim.diagnostic.setloclist()<CR>', opts)
+  buf_set_keymap('n', '<F3>', '<cmd>lua vim.lsp.buf.formatting()<CR>', opts)
+end
+
+-- Use a loop to conveniently call 'setup' on multiple servers and
+-- map buffer local keybindings when the language server attaches
+local servers = { 'gopls', 'rust_analyzer' }
+for _, server in ipairs(servers) do
+  lsp[server].setup {
+    on_attach = on_attach,
+    flags = {
+      debounce_text_changes = 150,
+    }
+  }
+end
 
 ---- Plugins ----
 ---- ale
@@ -78,6 +115,7 @@ g.ale_linters = {
 	c    = {},
 	cpp  = {},
 	css  = {'stylelint'},
+	go   = {'gobuild', 'golangci-lint'},
 	html = {'tidy'},
 	javascript = {'eslint'},
 	python = {'flake8'},