Files
LazyVim/lua/lazyvim/plugins/extras/lang/java.lua

126 lines
6.0 KiB
Lua

return {
-- Add java to treesitter.
{
"nvim-treesitter/nvim-treesitter",
opts = function(_, opts)
if type(opts.ensure_installed) == "table" then
vim.list_extend(opts.ensure_installed, { "java" })
end
end,
},
-- Ensure java debugger and test packages are installed
{
"mfussenegger/nvim-dap",
optional = true,
dependencies = {
{
"williamboman/mason.nvim",
opts = function(_, opts)
opts.ensure_installed = opts.ensure_installed or {}
vim.list_extend(opts.ensure_installed, { "java-test", "java-debug-adapter" })
end,
},
},
},
-- Set up lsp with mfussenegger/nvim-jdtls instead of nvim-lspconfig.
{
"neovim/nvim-lspconfig",
dependencies = { "folke/which-key.nvim", "mfussenegger/nvim-jdtls" },
opts = {
-- make sure mason installs the server
servers = {
jdtls = {
-- stylua: ignore
keys = {
{ "<leader>co", function() require("jdtls").organize_imports() end, desc = "Organize Imports", },
{ "<leader>cR", function() require("jdtls").rename_file() end, desc = "Rename File", },
{ "<leader>cxv", function() require("jdtls").extract_variable() end, desc = "Extract Variable", },
{ "<leader>cxv", function() require("jdtls").extract_variable({ visual = true }) end, mode = "v", desc = "Extract Variable", },
{ "<leader>cxc", function() require("jdtls").extract_constant() end, desc = "Extract Constant", },
{ "<leader>cxc", function() require("jdtls").extract_constant({ visual = true }) end, mode = "v", desc = "Extract Constant", },
{ "<leader>cxm", function() require("jdtls").extract_method({ visual = true }) end, mode = "v", desc = "Extract Method", },
},
},
},
setup = {
-- Override the default jdtls server startup to use nvim-jdtls.
jdtls = function()
-- The lspconfig configuration for jdtls contains two useful items:
-- 1. The list of filetypes on which to match.
-- 2. Custom method for finding the root for a java project.
local lsp_config = require("lspconfig.server_configurations.jdtls").default_config
local find_java_project_root = lsp_config.root_dir
local filetypes = lsp_config.filetypes
-- lookup paths for java test and debugger package
local mason_registry = require("mason-registry")
local bundles = {}
if mason_registry.has_package("java-test") and mason_registry.has_package("java-debug-adapter") then
-- jdtls tools configuration for debugging support
local java_test_pkg = mason_registry.get_package("java-test")
local java_test_path = java_test_pkg:get_install_path()
local java_dbg_pkg = mason_registry.get_package("java-debug-adapter")
local java_dbg_path = java_dbg_pkg:get_install_path()
local jar_patterns = {
java_dbg_path .. "/extension/server/com.microsoft.java.debug.plugin-*.jar",
java_test_path .. "/extension/server/*.jar"
}
for _, jar_pattern in ipairs(jar_patterns) do
for _, bundle in ipairs(vim.split(vim.fn.glob(jar_pattern), '\n')) do
table.insert(bundles, bundle)
end
end
end
-- Attach jdtls for the proper filetypes (i.e. java).
-- Existing server will be reused if the root_dir matches.
vim.api.nvim_create_autocmd("FileType", {
group = vim.api.nvim_create_augroup("MyJdtls", { clear = true }),
pattern = filetypes,
callback = function()
local fname = vim.api.nvim_buf_get_name(0)
local root_dir = find_java_project_root(fname)
local project_name = root_dir and vim.fs.basename(root_dir)
local cmd = { "jdtls" }
if project_name then
local jdtls_cache_dir = vim.fs.joinpath(vim.fn.stdpath("cache"), "jdtls", project_name)
vim.list_extend(cmd, {
"-configuration",
vim.fs.joinpath(jdtls_cache_dir, "config"),
"-data",
vim.fs.joinpath(jdtls_cache_dir, "workspace"),
})
end
local jdtls_base_config = {
on_attach = require("lazyvim.util").on_attach(function(client, buffer)
if mason_registry.has_package("java-test") then
-- custom keymaps for Java test runner (not yet compatible with neotest)
vim.keymap.set("n", "<leader>tT", function() require("jdtls").pick_test({ bufnr = buffer }) end, { buffer = buffer, desc = "Run specific Test" })
vim.keymap.set("n", "<leader>tt", function() require("jdtls").test_class({ bufnr = buffer }) end, { buffer = buffer, desc = "Run File" })
vim.keymap.set("n", "<leader>tr", function() require("jdtls").test_nearest_method({ bufnr = buffer }) end, { buffer = buffer, desc = "Run nearest" })
end
if mason_registry.has_package("java-debug-adapter") then
-- custom init for Java debugger
require("jdtls").setup_dap({ hotcodereplace = "auto" })
require("jdtls.dap").setup_dap_main_class_configs()
end
require("jdtls.setup").add_commands()
end),
cmd = cmd,
root_dir = root_dir,
init_options = {
bundles = bundles,
}
}
local jdtls_opts = require("lazyvim.util").opts("nvim-jdtls")
require("jdtls").start_or_attach(vim.tbl_deep_extend("force", jdtls_opts or {}, jdtls_base_config))
require("which-key").register({ c = { x = { name = "Extract" } } }, { prefix = "<leader>" })
end,
})
return true -- avoid duplicate servers
end,
},
},
},
}