mirror of
https://github.com/neovim/nvim-lspconfig.git
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100 lines
2.5 KiB
Lua
100 lines
2.5 KiB
Lua
---@brief
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---
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--- https://github.com/golang/tools/tree/master/gopls
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---
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--- Google's lsp server for golang.
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--- @class go_dir_custom_args
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---
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--- @field envvar_id string
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---
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--- @field custom_subdir string?
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local mod_cache = nil
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local std_lib = nil
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---@param custom_args go_dir_custom_args
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---@param on_complete fun(dir: string | nil)
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local function identify_go_dir(custom_args, on_complete)
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local cmd = { 'go', 'env', custom_args.envvar_id }
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vim.system(cmd, { text = true }, function(output)
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local res = vim.trim(output.stdout or '')
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if output.code == 0 and res ~= '' then
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if custom_args.custom_subdir and custom_args.custom_subdir ~= '' then
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res = res .. custom_args.custom_subdir
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end
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on_complete(res)
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else
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vim.schedule(function()
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vim.notify(
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('[gopls] identify ' .. custom_args.envvar_id .. ' dir cmd failed with code %d: %s\n%s'):format(
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output.code,
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vim.inspect(cmd),
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output.stderr
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)
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)
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end)
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on_complete(nil)
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end
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end)
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end
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---@return string?
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local function get_std_lib_dir()
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if std_lib and std_lib ~= '' then
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return std_lib
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end
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identify_go_dir({ envvar_id = 'GOROOT', custom_subdir = '/src' }, function(dir)
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if dir then
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std_lib = dir
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end
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end)
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return std_lib
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end
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---@return string?
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local function get_mod_cache_dir()
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if mod_cache and mod_cache ~= '' then
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return mod_cache
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end
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identify_go_dir({ envvar_id = 'GOMODCACHE' }, function(dir)
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if dir then
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mod_cache = dir
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end
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end)
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return mod_cache
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end
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---@param fname string
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---@return string?
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local function get_root_dir(fname)
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if mod_cache and fname:sub(1, #mod_cache) == mod_cache then
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local clients = vim.lsp.get_clients({ name = 'gopls' })
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if #clients > 0 then
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return clients[#clients].config.root_dir
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end
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end
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if std_lib and fname:sub(1, #std_lib) == std_lib then
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local clients = vim.lsp.get_clients({ name = 'gopls' })
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if #clients > 0 then
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return clients[#clients].config.root_dir
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end
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end
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return vim.fs.root(fname, 'go.work') or vim.fs.root(fname, 'go.mod') or vim.fs.root(fname, '.git')
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end
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---@type vim.lsp.Config
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return {
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cmd = { 'gopls' },
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filetypes = { 'go', 'gomod', 'gowork', 'gotmpl' },
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root_dir = function(bufnr, on_dir)
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local fname = vim.api.nvim_buf_get_name(bufnr)
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get_mod_cache_dir()
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get_std_lib_dir()
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-- see: https://github.com/neovim/nvim-lspconfig/issues/804
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on_dir(get_root_dir(fname))
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end,
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}
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