Added java-jdtls code actions shortcut <leader>ca

Author: Knoppiix

ftplugin/java.lua

@@ -1,26 +1,53 @@
--- print 'Loaded ftplugin/java.lua'
+---- print 'Loaded ftplugin/java.lua'
+--local jdtls = require 'jdtls'
+--
+--local root_dir = require('jdtls.setup').find_root { '.git', 'mvnw', 'gradlew', 'pom.xml', '.project' }
+--if root_dir == '' then
+--  root_dir = vim.fn.getcwd()
+--end
+--
+---- print('JDTLS root_dir = ' .. root_dir)
+--
+--local workspace_dir = vim.fn.stdpath 'data' .. '/jdtls-workspace/' .. vim.fn.fnamemodify(root_dir, ':p:h:t')
+--
+--local config = {
+--  cmd = { vim.fn.stdpath 'data' .. '/mason/packages/jdtls/bin/jdtls' },
+--  root_dir = root_dir,
+--  workspace_folder = workspace_dir,
+--  settings = {
+--    java = {
+--      project = {
+--        sourcePaths = { 'src' },
+--      },
+--    },
+--  },
+--}
+--
+--jdtls.start_or_attach(config)
 local jdtls = require 'jdtls'
 
-local root_dir = require('jdtls.setup').find_root { '.git', 'mvnw', 'gradlew', 'pom.xml' }
+local root_dir = require('jdtls.setup').find_root { '.git', 'pom.xml', 'build.gradle' }
 if root_dir == '' then
   root_dir = vim.fn.getcwd()
 end
 
-print('JDTLS root_dir = ' .. root_dir)
-
 local workspace_dir = vim.fn.stdpath 'data' .. '/jdtls-workspace/' .. vim.fn.fnamemodify(root_dir, ':p:h:t')
 
 local config = {
-  cmd = { vim.fn.stdpath 'data' .. '/mason/packages/jdtls/bin/jdtls' }, -- 👈 absolute path
-  root_dir = root_dir,
-  workspace_folder = workspace_dir,
-  settings = {
-    java = {
-      project = {
-        sourcePaths = { 'src' }, -- 👈 tells jdtls where sources begin
-      },
-    },
+  cmd = {
+    vim.fn.stdpath 'data' .. '/mason/packages/jdtls/bin/jdtls',
+    '-data',
+    workspace_dir,
   },
+  root_dir = root_dir,
 }
 
 jdtls.start_or_attach(config)
+
+-- LSP keymaps (for rename, code actions, etc.)
+local opts = { buffer = true }
+vim.keymap.set('n', '<leader>rn', vim.lsp.buf.rename, vim.tbl_extend('force', opts, { desc = 'LSP: Rename' }))
+vim.keymap.set('n', '<leader>ca', vim.lsp.buf.code_action, vim.tbl_extend('force', opts, { desc = 'LSP: Code Action' }))
+vim.keymap.set('n', 'gd', vim.lsp.buf.definition, vim.tbl_extend('force', opts, { desc = 'LSP: Go to Definition' }))
+vim.keymap.set('n', 'gr', vim.lsp.buf.references, vim.tbl_extend('force', opts, { desc = 'LSP: Find References' }))
+vim.keymap.set('n', 'K', vim.lsp.buf.hover, vim.tbl_extend('force', opts, { desc = 'LSP: Hover Doc' }))

init.lua

@@ -89,7 +89,10 @@ P.S. You can delete this when you're done too. It's your config now! :)
 --  NOTE: Must happen before plugins are loaded (otherwise wrong leader will be used)
 vim.g.mapleader = ' '
 vim.g.maplocalleader = ' '
-
+-- vim.cmd [[
+-- syntax enable
+-- filetype plugin indent on
+-- ]]
 -- Set to true if you have a Nerd Font installed and selected in the terminal
 vim.g.have_nerd_font = false
 
@@ -256,7 +259,17 @@ require('lazy').setup({
     -- keys can be used to configure plugin behavior/loading/etc.
     --
     -- Use `opts = {}` to automatically pass options to a plugin's `setup()` function, forcing the plugin to be loaded.
-    --
+    {
+      'fatih/vim-go',
+      build = ':GoInstallBinaries',
+    },
+    {
+      'hrsh7th/nvim-cmp',
+      dependencies = {
+        'hrsh7th/cmp-nvim-lsp',
+        'neovim/nvim-lspconfig',
+      },
+    },
 
     -- Alternatively, use `config = function() ... end` for full control over the configuration.
     -- If you prefer to call `setup` explicitly, use:
@@ -950,11 +963,12 @@ require('lazy').setup({
       main = 'nvim-treesitter.configs', -- Sets main module to use for opts
       -- [[ Configure Treesitter ]] See `:help nvim-treesitter`
       opts = {
-        ensure_installed = { 'bash', 'c', 'diff', 'html', 'lua', 'luadoc', 'markdown', 'markdown_inline', 'query', 'vim', 'vimdoc' },
+        ensure_installed = { 'bash', 'java', 'c', 'diff', 'html', 'lua', 'luadoc', 'markdown', 'markdown_inline', 'query', 'vim', 'vimdoc' },
         -- Autoinstall languages that are not installed
         auto_install = true,
         highlight = {
           enable = true,
+          disable = { 'java' },
           -- Some languages depend on vim's regex highlighting system (such as Ruby) for indent rules.
           --  If you are experiencing weird indenting issues, add the language to
           --  the list of additional_vim_regex_highlighting and disabled languages for indent.