fix error reporting

README.md

@@ -15,12 +15,12 @@ process with lazy.nvim a tiny bit.
 Setup:
 ```lua
 require("taolf").setup({
-    default_cmd = "lf", -- The Command to start lf with
-    dir = "", -- The dir to start lf in. "gwd" expands to the git working directory
+    default_cmd = "lf", -- The Command to start lf with.
+    dir = "", -- The dir to start lf in. "gwd" expands to the git working directory.
 }
 
 vim.keymap.set("n", "a<Leader>el", require("lf").start, { desc = "Open Lf" })
-vim.keymap.set("n", "<Leader>ec", function() require("lf").start({ dir = "cwd" }) end,
+vim.keymap.set("n", "<Leader>ec", function() require("lf").start() end,
     { desc = "Open Lf in directory of open file" })
 vim.keymap.set("n", "<Leader>eg", function() require("lf").start({ dir = "gwd" }) end,
     { desc = "Open Lf in git working directory" })
@@ -37,7 +37,6 @@ lazy.nvim setup:
 
         -- The path to start lf in.
         -- "gwd" expands to the git working directory
-        -- "cwd" expands to the directory of the open file
         dir = "", -- The path to start lf in.
     },
     dependencies = { "akinsho/toggleterm.nvim" },

lua/taolf.lua

@@ -95,6 +95,7 @@ function M.start(cfg)
 
         cfg = vim.tbl_deep_extend("keep", cfg or {}, Config.data)
         Lf:new(cfg or M.__conf):start()
+
 end
 
 return M

lua/taolf/config.lua

@@ -1,5 +1,3 @@
-local api = vim.api
-
 ---@class Lf.Container
 ---@field data Lf.Config
 ---@field group integer Autocmd id
@@ -18,10 +16,10 @@ local default = {
 ---Validate configuration values
 ---@param cfg Lf.Config existing configuration options
 local function validate(cfg)
-    vim.validate({
+    assert(vim.validate({
         default_cmd = { cfg.default_cmd, "s", false },
         dir = { cfg.dir, "s", false },
-    })
+    }))
 end
 
 ---Set a configuration passed as a function argument (not through `setup`)
@@ -65,6 +63,6 @@ return setmetatable(Config, {
     end,
     ---@diagnostic disable-next-line: unused-local
     __newindex = function(self, key, val)
-        api.nvim_err_writeln(("do not set invalid config values: %s => %s"):format(key, val))
+        vim.echo(("do not set invalid config values: %s => %s"):format(key, val))
     end,
 })

lua/taolf/main.lua

@@ -6,7 +6,6 @@ local o = vim.o
 
 local ok, terminal = pcall(require, "toggleterm")
 if not ok then
-    api.nvim_err_writeln("toggleterm.nvim must be installed to use this program")
     return
 end
 
@@ -82,16 +81,17 @@ function Lf:__open_in(path)
         local gitdir = fn.system(("git -C %s rev-parse --show-toplevel"):format(fn.expand("%:p:h")))
 
         if gitdir:match("^fatal:.*") then
-            api.nvim_out_write("Failed to get git directory")
-            return
+            require("util").error("Failed to find git working directory.")
+            path = nil
         end
+
         path = vim.trim(gitdir)
     end
 
-    if type(path) == "string" and path ~= "cwd" then
-        path = fn.expand(path)
-    else
+    if path == nil then
         path = fn.expand("%:p:h")
+    else
+        path = fn.expand(path)
     end
 
     local stat = uv.fs_stat(path)

lua/taolf/util.lua

@@ -1,4 +1,12 @@
----@meta
+local api = vim.api
+
+local M = {}
+
+function M.error(msg)
+    api.nvim_echo({{msg, "WarningMsg"}}, true, {})
+end
+
+return M
 
 ---@alias Mode "n" | "i" | "?"
 
@@ -61,7 +69,7 @@
 ---@class Lf.Config
 ---@field default_cmd? string Default `lf` command
 ---@field default_action? string Default action when `Lf` opens a file
----@field dir? Lf.directory Directory where `lf` starts ('gwd' is git-working-directory, ""/nil is CWD)
+---@field dir? Lf.directory Directory where `lf` starts ('gwd' is git-working-directory, nil is CWD)
 
 ---@class Lf
 ---@field cfg Lf.Config Configuration options