dotfiles/vim/lua/helpers.lua

-- Return the node_modules path for this project. If the project root contains a
-- frontend/ directory, assume node_modules lives there.
function Get_project_node_modules_path()
	local root_path = vim.fn.getcwd()
	local frontend_path = root_path .. "/frontend"
	local is_frontend = vim.fn.isdirectory(frontend_path) ~= 0
	local base_path = root_path
	if is_frontend then
		base_path = frontend_path
	end
	return base_path .. "/node_modules"
end

-- Return the project's go module path from go.mod, or an empty string if the file cannot be read.
function Get_project_go_module_path()
	local root_path = vim.fn.getcwd()
	local mod_path = root_path .. "/go.mod"
	if vim.fn.filereadable(mod_path) == 0 then
		return ""
	end

	local file = io.open(mod_path, "r")
	if file == nil then
		return ""
	end

	io.input(file)
	-- The first line of go.mod, something like:
	-- module github.com/username/repo
	local line = io.read()
	io.close(file)

	local match = string.match(line, "^module (.+)")
	if match == nil then
		return ""
	end

	return match
end