explore workspace dir pusing oil.nvim to configure libraries manually

This reverts commit 6e9877e959.

lua/kickstart/plugins/lspconfig.lua

@@ -29,6 +29,9 @@ return {
 
       -- Allows extra capabilities provided by nvim-cmp
       'hrsh7th/cmp-nvim-lsp',
+
+      -- Needed to explore Workspace in Java
+      'stevearc/oil.nvim',
     },
     config = function()
       -- Brief aside: **What is LSP?**
@@ -224,54 +227,6 @@ return {
           -- set default config according to sysname
           local config_path = install_path .. '/config_' .. sysname
 
-          -- START SEARCH FOR PROCESSING --
-          -- detect install path based on system
-          local is_windows = vim.fn.has 'win32' == 1
-          local cmds = is_windows and {
-            '(gcm processing.exe).source',
-          } or {
-            'whereis',
-            'processing.exe',
-          }
-
-          -- run syscall and process output
-          local output = vim.system(cmds, { text = true }):wait()
-          local path = output.stdout or ''
-          if not is_windows then
-            -- on linux, get substr starting with path
-            local start_idx = string.find(path, '/')
-            path = (start_idx ~= nil) and string.sub(path, start_idx) or ''
-          end
-
-          -- for windows, remove backslashes
-          path = string.gsub(path, '\\', '/')
-          -- remove filename at end of path
-          local end_idx = string.find(path, '/[^/]*$')
-          path = string.sub(path, 1, end_idx)
-
-          -- in case of chocolatey install, navigate to binaries
-          local is_chocolatey = string.find(path, 'chocolatey')
-          if is_chocolatey then
-            path = path .. '../lib/processing/tools/'
-            -- list directories for program version
-            cmds = is_windows and {
-              'ls',
-              path,
-              '|select name',
-              '|Out-String',
-            } or {
-              'ls',
-              '-l',
-              path,
-            }
-
-            output = vim.system(cmds, { text = true }):wait()
-            local version = string.match(output.stdout, 'processing[^%s]*')
-            path = path .. version
-          end
-          -- set path to processing-core library
-          path = path .. '/core/library/core.jar'
-
           -- See `:help vim.lsp.start_client` for an overview of the supported `config` options.
           local config = {
             -- The command that starts the language server
@@ -308,13 +263,7 @@ return {
             -- See https://github.com/eclipse/eclipse.jdt.ls/wiki/Running-the-JAVA-LS-server-from-the-command-line#initialize-request
             -- for a list of options
             settings = {
-              java = {
+              java = {},
-                project = {
-                  referencedLibraries = {
-                    is_windows and string.gsub(path, '/', '\\') or path,
-                  },
-                },
-              },
             },
 
             -- Language server `initializationOptions`
@@ -327,11 +276,15 @@ return {
         end
         vim.api.nvim_create_autocmd('FileType', {
           pattern = 'java',
-          callback = function()
+          callback = function(opt)
             local project_name = vim.fn.fnamemodify(vim.fn.getcwd(), ':p:h:t')
             -- calculate workspace dir
             local workspace_dir = vim.fn.stdpath 'data' .. '/site/java/workspace-root/' .. project_name
             require('jdtls').start_or_attach(generate_config(workspace_dir))
+            vim.keymap.set('n', '<leader>we', '<cmd>Oil ' .. workspace_dir .. '<cr>', {
+              desc = '[W]orkspace [E]xplorer',
+              buffer = opt.buf,
+            })
           end,
         })
       end