Add nvim config

home/.config/nvim/ftplugin/java.lua

@@ -0,0 +1,111 @@
+local nvim_local_dir = vim.fn.expand("~/.local/share/nvim")
+local mason_packages = nvim_local_dir .. "/mason/packages"
+local lombok_jar = mason_packages .. "/jdtls/lombok.jar"
+local project_name = vim.fn.fnamemodify(vim.fn.getcwd(), ":p:h:t")
+local workspace_dir = nvim_local_dir .. "/jdtls-workspaces/" .. project_name
+local lsp_utils = require("lsp_utils")
+local jvm = "/usr/lib/jvm"
+local java_version = 21
+
+require("jdtls").start_or_attach({
+  cmd = {
+    jvm .. "/java-" .. java_version .. "-openjdk-amd64/bin/java",
+    "-Declipse.application=org.eclipse.jdt.ls.core.id1",
+    "-Dosgi.bundles.defaultStartLevel=4",
+    "-Declipse.product=org.eclipse.jdt.ls.core.product",
+    "-Dlog.protocol=true",
+    "-Dlog.level=ALL",
+    "-Xms1g",
+    "--add-modules=ALL-SYSTEM",
+    "--add-opens",
+    "java.base/java.util=ALL-UNNAMED",
+    "--add-opens",
+    "java.base/java.lang=ALL-UNNAMED",
+    "-javaagent:" .. lombok_jar,
+    "-jar",
+    vim.fn.glob(mason_packages .. "/jdtls/plugins/org.eclipse.equinox.launcher_*.jar"),
+    "-configuration",
+    nvim_local_dir .. "/mason/packages/jdtls/config_linux",
+    "-data",
+    workspace_dir,
+  },
+  settings = {
+    java = {
+      signatureHelp = { enabled = true },
+      autobuild = { enabled = false },
+      configuration = {
+        runtimes = {
+          {
+            name = "JavaSE-1.8",
+            path = jvm .. "/java-8-openjdk-amd64/",
+          },
+          {
+            name = "JavaSE-11",
+            path = jvm .. "/java-11-openjdk-amd64/",
+          },
+          {
+            name = "JavaSE-17",
+            path = jvm .. "/java-17-openjdk-amd64/",
+          },
+          {
+            name = "JavaSE-21",
+            path = jvm .. "/java-21-openjdk-amd64/",
+          },
+        },
+      },
+    },
+  },
+  completion = { favoriteStaticMembers = { "java.text.MessageFormat.format" } },
+  handlers = {
+    ["language/status"] = function() end,
+  },
+  init_options = {
+    bundles = {
+      vim.fn.glob(mason_packages .. "/java-debug-adapter/extension/server/com.microsoft.java.debug.plugin-*.jar"),
+    },
+  },
+  capabilities = lsp_utils.get_capabilities(),
+  on_attach = lsp_utils.map_keys,
+})
+
+function RunJava()
+  local function show_output(output)
+    vim.cmd("split")
+    vim.cmd("enew")
+    vim.fn.append(0, output)
+    --vim.cmd("1d") -- Remove the empty first line
+    vim.bo[0].modifiable = false
+  end
+
+  local filename = vim.fn.expand("%") -- Get the current file name
+  local class_name = vim.fn.fnamemodify(filename, ":r") -- Extract the class name
+  local compile_cmd = "javac " .. filename
+  local run_cmd = "java " .. class_name
+
+  -- Create a temporary file to capture the compile output
+  local temp_file = vim.fn.tempname()
+
+  -- Run the compilation command and save the output to the temporary file
+  local compile_exit_code = vim.fn.system(compile_cmd .. " > " .. temp_file .. " 2>&1")
+
+  -- Check the exit code of the compile command
+  if compile_exit_code == 0 then
+    -- Compilation was successful, run the Java program
+    show_output(vim.fn.systemlist(run_cmd))
+  else
+    -- Compilation failed, display the error output from the temporary file
+    show_output(vim.fn.readfile(temp_file))
+  end
+
+  -- Clean up the temporary file and class file
+  vim.fn.delete(temp_file)
+  vim.fn.delete(vim.fn.expand("%:p:h") .. "/" .. class_name .. ".class")
+end
+
+-- Define a VimScript command to execute the Lua function
+vim.api.nvim_exec(
+  [[
+  command! RunJava lua RunJava()
+]],
+  false
+)