chore(mappings): add desc to all mappings

scripts/generate_default_keymaps.lua

@@ -3,8 +3,9 @@
 
 -- write DEFAULT_KEYMAPS in various formats
 
-local max_key_help = 0
-local max_short_help = 0
+local max_key = 0
+local max_short = 0
+local max_callback = 0
 local outs_help = {}
 
 for _, m in pairs(DEFAULT_KEYMAPS) do
@@ -13,22 +14,23 @@ for _, m in pairs(DEFAULT_KEYMAPS) do
   for _, key in ipairs(keys) do
     local out = {}
     out.key = key
-    max_key_help = math.max(#out.key, max_key_help)
+    max_key = math.max(#out.key, max_key)
     if first then
       out.short = m.desc.short
-      max_short_help = math.max(#out.short, max_short_help)
+      max_short = math.max(#out.short, max_short)
       out.long = m.desc.long
       first = false
     end
     table.insert(outs_help, out)
   end
+  max_callback = math.max(#m.callback, max_callback)
 end
 
 -- help
 local file = io.open("/tmp/DEFAULT_KEYMAPS.help", "w")
 io.output(file)
 io.write "\n"
-local fmt = string.format("%%-%d.%ds  %%-%d.%ds  %%s\n", max_key_help, max_key_help, max_short_help, max_short_help)
+local fmt = string.format("%%-%d.%ds  %%-%d.%ds  %%s\n", max_key, max_key, max_short, max_short)
 for _, m in pairs(outs_help) do
   if not m.short then
     io.write(string.format("%s\n", m.key))
@@ -42,12 +44,19 @@ io.close(file)
 -- lua on_attach
 file = io.open("/tmp/DEFAULT_KEYMAPS.on_attach.lua", "w")
 io.output(file)
-io.write "local function on_attach(bufnr, mode, opts)\n"
-io.write "local Api = require('nvim-tree.api')\n"
+io.write "local Api = require('nvim-tree.api')\n\n"
+io.write "local function on_attach(bufnr)\n"
+fmt = string.format(
+  "  vim.keymap.set('n', %%-%d.%ds %%-%d.%ds { buffer = bufnr, noremap = true, silent = true, nowait = true, desc = '%%s', })\n",
+  max_key + 3,
+  max_key + 3,
+  max_callback + 1,
+  max_callback + 1
+)
 for _, m in pairs(DEFAULT_KEYMAPS) do
   local keys = type(m.key) == "table" and m.key or { m.key }
   for _, key in ipairs(keys) do
-    io.write(string.format("  vim.keymap.set(mode, '%s', %s, opts)\n", key, m.callback))
+    io.write(string.format(fmt, "'" .. key .. "',", m.callback .. ",", m.desc.short))
   end
 end
 io.write "end\n"