nvim/ftplugin/java.lua

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vim.opt_local.shiftwidth = 2
vim.opt_local.tabstop = 2
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-- vim.opt_local.cmdheight = 2 -- more space in the neovim command line for displaying messages
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local status, jdtls = pcall(require, 'jdtls')
if not status then
return
end
-- Determine OS
local home = os.getenv 'HOME'
if vim.fn.has 'mac' == 1 then
WORKSPACE_PATH = home .. '/workspace/'
CONFIG = 'mac'
elseif vim.fn.has 'unix' == 1 then
WORKSPACE_PATH = home .. '/workspace/'
CONFIG = 'linux'
else
print 'Unsupported system'
end
-- Find root of project
local root_markers = { '.git', 'mvnw', 'gradlew', 'pom.xml', 'build.gradle' }
local root_dir = require('jdtls.setup').find_root(root_markers)
if root_dir == '' then
return
end
local extendedClientCapabilities = jdtls.extendedClientCapabilities
extendedClientCapabilities.resolveAdditionalTextEditsSupport = true
local project_name = vim.fn.fnamemodify(vim.fn.getcwd(), ':p:h:t')
local workspace_dir = WORKSPACE_PATH .. project_name
JAVA_DAP_ACTIVE = true
local bundles = {
vim.fn.glob(
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home
.. '/.local/share/nvim/mason/packages/java-debug-adapter/extension/server/com.microsoft.java.debug.plugin-*.jar'
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),
}
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vim.list_extend(
bundles,
vim.split(vim.fn.glob(home .. '/.local/share/nvim/mason/packages/java-test/extension/server/*.jar'), '\n')
)
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local function lsp_keymaps(bufnr)
local opt = { noremap = true, silent = true }
local keymap = vim.api.nvim_buf_set_keymap
keymap(bufnr, 'n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<CR>', opt)
keymap(bufnr, 'n', 'gd', '<cmd>lua vim.lsp.buf.definition()<CR>', opt)
keymap(bufnr, 'n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>', opt)
keymap(bufnr, 'n', 'gI', '<cmd>lua vim.lsp.buf.implementation()<CR>', opt)
keymap(bufnr, 'n', 'gr', '<cmd>TroubleToggle lsp_references<CR>', opt)
keymap(bufnr, 'n', 'gl', '<cmd>lua vim.diagnostic.open_float()<CR>', opt)
keymap(bufnr, 'n', '<leader>lf', '<cmd>lua vim.lsp.buf.format { async = true }<cr>', opt)
keymap(bufnr, 'n', '<leader>li', '<cmd>LspInfo<cr>', opt)
keymap(bufnr, 'n', '<leader>lI', '<cmd>LspInstallInfo<cr>', opt)
keymap(bufnr, 'n', '<leader>la', '<cmd>lua vim.lsp.buf.code_action()<cr>', opt)
keymap(bufnr, 'n', '<leader>lj', '<cmd>lua vim.diagnostic.goto_next({buffer=0})<cr>', opt)
keymap(bufnr, 'n', '<leader>lk', '<cmd>lua vim.diagnostic.goto_prev({buffer=0})<cr>', opt)
keymap(bufnr, 'n', '<leader>lr', '<cmd>lua vim.lsp.buf.rename()<cr>', opt)
keymap(bufnr, 'n', '<leader>ls', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opt)
keymap(bufnr, 'n', '<leader>lq', '<cmd>lua vim.diagnostic.setloclist()<CR>', opt)
keymap(bufnr, 'n', '<leader>e', '<cmd>lua vim.diagnostic.open_float()<CR>', opt)
end
local on_attach = function(client, bufnr)
--[[ vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc') ]]
lsp_keymaps(bufnr)
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if client.name == 'jdtls' or client.name == 'jdt.ls' then
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client.server_capabilities.documentFormattingProvider = false
vim.lsp.codelens.refresh()
if JAVA_DAP_ACTIVE then
require('jdtls').setup_dap { hotcodereplace = 'auto' }
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require('jdtls.setup').add_commands()
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require('jdtls.dap').setup_dap_main_class_configs()
end
end
local ft = vim.api.nvim_buf_get_option(bufnr, 'filetype')
local nls = require 'plugins.null-ls'
local enable = false
if nls.has_formatter(ft) then
enable = client.name == 'null-ls'
else
enable = not (client.name == 'null-ls')
end
-- util.info(client.name .. " " .. (enable and "yes" or "no"), "format")
client.server_capabilities.documentFormattingProvider = enable
end
local cmp_nvim_lsp = require 'cmp_nvim_lsp'
local capabilities = vim.lsp.protocol.make_client_capabilities()
capabilities.textDocument.completion.completionItem.snippetSupport = true
capabilities = cmp_nvim_lsp.default_capabilities(capabilities)
-- See `:help vim.lsp.start_client` for an overview of the supported `config` options.
local config = {
-- The command that starts the language server
-- See: https://github.com/eclipse/eclipse.jdt.ls#running-from-the-command-line
cmd = {
-- 💀
'java', -- or '/path/to/java11_or_newer/bin/java'
-- depends on if `java` is in your $PATH env variable and if it points to the right version.
'-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',
'-javaagent:' .. home .. '/.local/share/nvim/mason/packages/jdtls/lombok.jar',
'-Xms1g',
'--add-modules=ALL-SYSTEM',
'--add-opens',
'java.base/java.util=ALL-UNNAMED',
'--add-opens',
'java.base/java.lang=ALL-UNNAMED',
-- 💀
'-jar',
vim.fn.glob(home .. '/.local/share/nvim/mason/packages/jdtls/plugins/org.eclipse.equinox.launcher_*.jar'),
-- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^
-- Must point to the Change this to
-- eclipse.jdt.ls installation the actual version
-- 💀
'-configuration',
home .. '/.local/share/nvim/mason/packages/jdtls/config_' .. CONFIG,
-- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^
-- Must point to the Change to one of `linux`, `win` or `mac`
-- eclipse.jdt.ls installation Depending on your system.
-- 💀
-- See `data directory configuration` section in the README
'-data',
workspace_dir,
},
on_attach = on_attach,
capabilities = capabilities,
-- 💀
-- This is the default if not provided, you can remove it. Or adjust as needed.
-- One dedicated LSP server & client will be started per unique root_dir
root_dir = root_dir,
-- Here you can configure eclipse.jdt.ls specific settings
-- See https://github.com/eclipse/eclipse.jdt.ls/wiki/Running-the-JAVA-LS-server-from-the-command-line#initialize-request
-- or https://github.com/redhat-developer/vscode-java#supported-vs-code-settings
-- for a list of options
settings = {
java = {
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eclipse = { downloadSources = true },
configuration = { updateBuildConfiguration = 'interactive' },
maven = { downloadSources = true },
implementationsCodeLens = { enabled = true },
referencesCodeLens = { enabled = true },
references = { includeDecompiledSources = true },
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-- Set this to true to use jdtls as your formatter
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format = { enabled = true },
signatureHelp = { enabled = true },
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},
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-- signatureHelp = { enabled = true },
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completion = {
favoriteStaticMembers = {
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'org.assertj.core.api.Assertions.assertThat',
'org.assertj.core.api.Assertions.assertThatThrownBy',
'org.assertj.core.api.Assertions.assertThatExceptionOfType',
'org.assertj.core.api.Assertions.catchThrowable',
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'org.hamcrest.MatcherAssert.assertThat',
'org.hamcrest.Matchers.*',
'org.hamcrest.CoreMatchers.*',
'org.junit.jupiter.api.Assertions.*',
'java.util.Objects.requireNonNull',
'java.util.Objects.requireNonNullElse',
'org.mockito.Mockito.*',
},
},
contentProvider = { preferred = 'fernflower' },
extendedClientCapabilities = extendedClientCapabilities,
sources = {
organizeImports = {
starThreshold = 9999,
staticStarThreshold = 9999,
},
},
codeGeneration = {
toString = {
template = '${object.className}{${member.name()}=${member.value}, ${otherMembers}}',
},
useBlocks = true,
},
},
flags = {
allow_incremental_sync = true,
},
-- Language server `initializationOptions`
-- You need to extend the `bundles` with paths to jar files
-- if you want to use additional eclipse.jdt.ls plugins.
--
-- See https://github.com/mfussenegger/nvim-jdtls#java-debug-installation
--
-- If you don't plan on using the debugger or other eclipse.jdt.ls plugins you can remove this
init_options = {
-- bundles = {},
bundles = bundles,
},
}
vim.api.nvim_create_autocmd({ 'BufWritePost' }, {
pattern = { '*.java' },
callback = function()
vim.lsp.codelens.refresh()
end,
})
-- This starts a new client & server,
-- or attaches to an existing client & server depending on the `root_dir`.
require('jdtls').start_or_attach(config)
vim.cmd "command! -buffer -nargs=? -complete=custom,v:lua.require'jdtls'._complete_compile JdtCompile lua require('jdtls').compile(<f-args>)"
vim.cmd "command! -buffer -nargs=? -complete=custom,v:lua.require'jdtls'._complete_set_runtime JdtSetRuntime lua require('jdtls').set_runtime(<f-args>)"
vim.cmd "command! -buffer JdtUpdateConfig lua require('jdtls').update_project_config()"
vim.cmd "command! -buffer JdtBytecode lua require('jdtls').javap()"
-- Shorten function name
local keymap = vim.keymap.set
-- Silent keymap option
local opts = { silent = true }
keymap('n', '<leader>jo', "<Cmd>lua require'jdtls'.organize_imports()<CR>", opts)
keymap('n', '<leader>jv', "<Cmd>lua require('jdtls').extract_variable()<CR>", opts)
keymap('n', '<leader>jc', "<Cmd>lua require('jdtls').extract_constant()<CR>", opts)
keymap('n', '<leader>jt', "<Cmd>lua require'jdtls'.test_nearest_method()<CR>", opts)
keymap('n', '<leader>jT', "<Cmd>lua require'jdtls'.test_class()<CR>", opts)
keymap('n', '<leader>ju', '<Cmd>JdtUpdateConfig<CR>', opts)
keymap('v', '<leader>jv', "<Esc><Cmd>lua require('jdtls').extract_variable(true)<CR>", opts)
keymap('v', '<leader>jc', "<Esc><Cmd>lua require('jdtls').extract_constant(true)<CR>", opts)
keymap('v', '<leader>jm', "<Esc><Cmd>lua require('jdtls').extract_method(true)<CR>", opts)