feat: added a LazyDev debugging command that shows libraries and se…

…ttings for the current buffer

lua/lazydev/cmd.lua

@@ -0,0 +1,62 @@
+local Util = require("lazydev.util")
+local Workspace = require("lazydev.workspace")
+
+local M = {}
+
+---@type table<string, fun(args: string[])>
+M.commands = {
+  debug = function()
+    local buf = vim.api.nvim_get_current_buf()
+    local ws = Workspace.find(buf)
+    if not ws then
+      return Util.warn("No **LuaLS** workspace found.\nUse `:LazyDev lsp` to see settings of attached LSP clients.")
+    end
+    ws:debug({ details = true })
+  end,
+  lsp = function()
+    local clients = vim.lsp.get_clients({ bufnr = 0 })
+    local lines = {} ---@type string[]
+    for _, client in ipairs(clients) do
+      lines[#lines + 1] = "## " .. client.name
+      lines[#lines + 1] = "```lua"
+      lines[#lines + 1] = "settings = " .. vim.inspect(client.settings)
+      lines[#lines + 1] = "```"
+    end
+    Util.info(lines)
+  end,
+}
+
+function M.execute(input)
+  local prefix, args = M.parse(input.args)
+  prefix = prefix and prefix ~= "" and prefix or "debug"
+  if not M.commands[prefix or ""] then
+    return Util.error("Invalid command")
+  end
+  M.commands[prefix](args)
+end
+
+function M.complete(_, line)
+  local prefix, args = M.parse(line)
+  if #args > 0 then
+    return {}
+  end
+
+  ---@param key string
+  return vim.tbl_filter(function(key)
+    return key:find(prefix, 1, true) == 1
+  end, vim.tbl_keys(M.commands))
+end
+
+---@return string, string[]
+function M.parse(args)
+  local parts = vim.split(vim.trim(args), "%s+")
+  if parts[1]:find("LazyDev") then
+    table.remove(parts, 1)
+  end
+  if args:sub(-1) == " " then
+    parts[#parts + 1] = ""
+  end
+  return table.remove(parts, 1) or "", parts
+end
+
+return M

lua/lazydev/config.lua

@@ -75,6 +75,16 @@ function M.setup(opts)
     end
   end
 
+  vim.api.nvim_create_user_command("LazyDev", function(...)
+    require("lazydev.cmd").execute(...)
+  end, {
+    nargs = "*",
+    complete = function(...)
+      return require("lazydev.cmd").complete(...)
+    end,
+    desc = "lazydev.nvim",
+  })
+
   vim.schedule(function()
     require("lazydev.buf").setup()
     require("lazydev.cmp").setup()

lua/lazydev/workspace.lua

@@ -165,7 +165,9 @@ function M:update()
   end
 end
 
-function M:debug()
+---@param opts? {details: boolean}
+function M:debug(opts)
+  opts = opts or {}
   local root = M.is_special(self.root) and "[" .. self.root .. "]" or vim.fn.fnamemodify(self.root, ":~")
   local lines = { "## " .. root }
   ---@type string[]
@@ -175,6 +177,11 @@ function M:debug()
     local plugin = Pkg.get_plugin_name(lib .. "/")
     table.insert(lines, "- " .. (plugin and "**" .. plugin .. "** " or "") .. ("`" .. lib .. "`"))
   end
+  if opts.details then
+    lines[#lines + 1] = "```lua"
+    lines[#lines + 1] = "settings = " .. vim.inspect(self.settings)
+    lines[#lines + 1] = "```"
+  end
   Util.info(lines)
 end