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local nvim_lsp = require('lspconfig')
local trouble = require("trouble")
local capabilities = require("cmp_nvim_lsp").default_capabilities()
-- Redefine LSP diagnostic signs
local signs = { Error = 'E', Warning = 'W', Hint = 'H', Information = 'I' }
for type, icon in pairs(signs) do
local hl = 'DiagnosticSign' .. type
vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = '' })
end
local opts = { noremap=true, silent=true }
-- Setup lsp_signature for function signature help
require "lsp_signature".setup()
-- Common on_attach function to handle keymaps and settings for all LSPs
local common_on_attach = function(client, bufnr)
-- Key mappings
vim.api.nvim_buf_set_keymap(bufnr, "n", "gD", "<cmd>lua vim.lsp.buf.declaration()<CR>", opts)
vim.api.nvim_buf_set_keymap(bufnr, "n", "gd", "<cmd>lua vim.lsp.buf.definition()<CR>", opts)
vim.api.nvim_buf_set_keymap(bufnr, "n", "ga", "<cmd>lua vim.lsp.buf.code_action()<CR>", opts)
vim.api.nvim_buf_set_keymap(bufnr, "n", "K", "<cmd>lua vim.lsp.buf.hover()<CR>", opts)
vim.api.nvim_buf_set_keymap(bufnr, "n", "gr", "<cmd>lua vim.lsp.buf.references()<CR>", opts)
-- Use vim.diagnostic.open_float for showing line diagnostics (replacing deprecated call)
vim.api.nvim_buf_set_keymap(bufnr, "n", "<space>e", "<cmd>lua vim.diagnostic.open_float()<CR>", opts)
vim.keymap.set('n', '<A-f>', '<cmd>lua vim.lsp.buf.format {async = true}<cr>', opts)
-- Autoformat on save
vim.cmd("autocmd BufWritePre <buffer> lua vim.lsp.buf.format {async = true}")
end
-- LSP servers setup
local servers = {
'clangd',
'gopls',
'jdtls',
'metals',
'ocamllsp',
'ruff',
'rust_analyzer',
}
capabilities.offsetEncoding = { "utf-16" }
for _, lsp in ipairs(servers) do
nvim_lsp[lsp].setup {
capabilities = capabilities,
on_attach = common_on_attach,
flags = {
debounce_text_changes = 150,
}
}
end
nvim_lsp.ts_ls.setup {
capabilities = capabilities,
on_attach = common_on_attach,
filetypes = { "typescript", "typescriptreact", "typescript.tsx" },
cmd = { "typescript-language-server", "--stdio" }
}
nvim_lsp.pyright.setup {
settings = {
pyright = {
-- Using Ruff's import organizer
disableOrganizeImports = true,
},
python = {
analysis = {
-- Ignore all files for analysis to exclusively use Ruff for linting
ignore = { '*' },
},
},
},
}
vim.lsp.inlay_hint.enable(true, { 0 })
-- Trouble setup
trouble.setup({
use_diagnostic_signs = true,
auto_close = true,
auto_open = false
})
-- nvim-cmp setup for autocompletion
local luasnip = require 'luasnip'
local cmp = require 'cmp'
cmp.setup {
snippet = {
expand = function(args)
luasnip.lsp_expand(args.body)
end,
},
mapping = cmp.mapping.preset.insert({
['<C-d>'] = cmp.mapping.scroll_docs(-4),
['<C-f>'] = cmp.mapping.scroll_docs(4),
['<C-Space>'] = cmp.mapping.complete(),
['<CR>'] = cmp.mapping.confirm {
behavior = cmp.ConfirmBehavior.Replace,
select = true,
},
['<Tab>'] = cmp.mapping(function(fallback)
if cmp.visible() then
cmp.select_next_item()
elseif luasnip.expand_or_jumpable() then
luasnip.expand_or_jump()
else
fallback()
end
end, { 'i', 's' }),
['<S-Tab>'] = cmp.mapping(function(fallback)
if cmp.visible() then
cmp.select_prev_item()
elseif luasnip.jumpable(-1) then
luasnip.jump(-1)
else
fallback()
end
end, { 'i', 's' }),
}),
sources = {
{ name = 'nvim_lsp' },
{ name = 'luasnip' },
},
}
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