fix(mappings): add global entry-point keymaps and correct <Leader>ww/<Leader>wt targets

Two bugs prevented keymaps from working after a Dein install:

1. <Leader>ww and <Leader>wt both called diary_today() instead of
   wiki_index() / wiki_tab_index(). Fixed in keymaps.lua (Neovim)
   and ftplugin/vimwiki.vim (Vim).

2. All keymaps were buffer-local (<buffer> / buffer=bufnr), so they
   only activated inside an already-open .wiki file. Users had no way
   to reach the wiki from any other buffer, making the plugin appear
   broken on a fresh Vim start.

   Fix: register the eight <Leader>w* entry-point mappings globally —
   in setup() for Neovim (lua/nuwiki/init.lua) and in plugin/nuwiki.vim
   for plain Vim. To avoid a chicken-and-egg LSP dependency, the global
   mappings open files directly from config (wiki_root, diary_rel_path,
   file_extension); the LSP auto-starts via the FileType autocmd once
   the vimwiki buffer loads. Three new autoload helpers
   (open_wiki_path, open_diary_path, open_diary_index_path) provide the
   LSP-free path for the Vim side.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

autoload/nuwiki/commands.vim

@@ -342,6 +342,36 @@ function! nuwiki#commands#diary_generate_index() abort
   call s:exec('nuwiki.diary.generateIndex', [{ 'uri': s:buf_uri() }])
 endfunction
 
+" ===== Global entry-point helpers (no LSP required) =====
+"
+" These are used by the global mappings in plugin/nuwiki.vim so users can
+" open their wiki from any buffer. Files are opened directly from config;
+" the LSP auto-starts via the FileType autocmd once the buffer loads.
+
+function! nuwiki#commands#open_wiki_path(tab) abort
+  let l:root = expand(get(g:, 'nuwiki_wiki_root', '~/vimwiki'))
+  let l:ext  = get(g:, 'nuwiki_file_extension', '.wiki')
+  if l:ext[0] !=# '.' | let l:ext = '.' . l:ext | endif
+  execute (a:tab ? 'tabedit' : 'edit') . ' ' . fnameescape(l:root . '/index' . l:ext)
+endfunction
+
+function! nuwiki#commands#open_diary_path(day_offset) abort
+  let l:root  = expand(get(g:, 'nuwiki_wiki_root', '~/vimwiki'))
+  let l:ext   = get(g:, 'nuwiki_file_extension', '.wiki')
+  if l:ext[0] !=# '.' | let l:ext = '.' . l:ext | endif
+  let l:diary = get(g:, 'nuwiki_diary_rel_path', 'diary')
+  let l:date  = strftime('%Y-%m-%d', localtime() + a:day_offset * 86400)
+  execute 'edit ' . fnameescape(l:root . '/' . l:diary . '/' . l:date . l:ext)
+endfunction
+
+function! nuwiki#commands#open_diary_index_path() abort
+  let l:root  = expand(get(g:, 'nuwiki_wiki_root', '~/vimwiki'))
+  let l:ext   = get(g:, 'nuwiki_file_extension', '.wiki')
+  if l:ext[0] !=# '.' | let l:ext = '.' . l:ext | endif
+  let l:diary = get(g:, 'nuwiki_diary_rel_path', 'diary')
+  execute 'edit ' . fnameescape(l:root . '/' . l:diary . '/diary' . l:ext)
+endfunction
+
 " ===== List + heading editing =====
 
 function! s:exec_pos(cmd) abort

ftplugin/vimwiki.vim

@@ -115,8 +115,8 @@ if !has('nvim')
 
   if !get(g:, 'nuwiki_no_default_mappings', 0)
     " Wiki prefix
-    nnoremap <silent><buffer> <Leader>ww  :call nuwiki#commands#diary_today()<CR>
+    nnoremap <silent><buffer> <Leader>ww  :call nuwiki#commands#wiki_index(0)<CR>
-    nnoremap <silent><buffer> <Leader>wt  :call nuwiki#commands#diary_today()<CR>
+    nnoremap <silent><buffer> <Leader>wt  :call nuwiki#commands#wiki_tab_index(0)<CR>
     nnoremap <silent><buffer> <Leader>ws  :call nuwiki#commands#wiki_ui_select()<CR>
     nnoremap <silent><buffer> <Leader>wi  :call nuwiki#commands#diary_index()<CR>
     nnoremap <silent><buffer> <Leader>w<Leader>w  :call nuwiki#commands#diary_today()<CR>

lua/nuwiki/init.lua

@@ -13,6 +13,58 @@ local M = {}
 local config = require('nuwiki.config')
 local lsp = require('nuwiki.lsp')
 
+-- Open a file directly, expanding ~ / env vars in the path.
+local function _open(path, open_cmd)
+  vim.cmd((open_cmd or 'edit') .. ' ' .. vim.fn.fnameescape(vim.fn.expand(path)))
+end
+
+-- Compute the wiki index path for wiki #n (0-based) from config.
+local function _wiki_index_path(n)
+  local opts = config.options
+  local w   = opts.wikis and opts.wikis[(n or 0) + 1]
+  local root = (w and w.root) or opts.wiki_root or '~/vimwiki'
+  local idx  = (w and w.index) or 'index'
+  local ext  = (w and w.file_extension) or opts.file_extension or '.wiki'
+  if not ext:match('^%.') then ext = '.' .. ext end
+  return root .. '/' .. idx .. ext
+end
+
+-- Compute a diary file path from config. day_offset=0 → today.
+-- Pass nil for the diary index file itself.
+local function _diary_path(day_offset)
+  local opts = config.options
+  local w    = opts.wikis and opts.wikis[1]
+  local root = (w and w.root) or opts.wiki_root or '~/vimwiki'
+  local rel  = (w and w.diary_rel_path) or 'diary'
+  local ext  = (w and w.file_extension) or opts.file_extension or '.wiki'
+  if not ext:match('^%.') then ext = '.' .. ext end
+  if day_offset == nil then
+    local didx = (w and w.diary_index) or 'diary'
+    return root .. '/' .. rel .. '/' .. didx .. ext
+  end
+  local t = os.time() + day_offset * 86400
+  return root .. '/' .. rel .. '/' .. os.date('%Y-%m-%d', t) .. ext
+end
+
+-- Register global (non-buffer-local) entry-point keymaps so users can open
+-- their wiki from any buffer, not just from inside a .wiki file. Files are
+-- opened directly from config — no LSP client required; the server auto-starts
+-- once the vimwiki FileType fires on the newly opened buffer.
+local function _setup_global_mappings()
+  if vim.g.nuwiki_no_default_mappings then return end
+  local kmap = vim.keymap.set
+  local function o(d) return { silent = true, desc = 'nuwiki: ' .. d } end
+
+  kmap('n', '<Leader>ww',         function() _open(_wiki_index_path(0)) end,             o('wiki index'))
+  kmap('n', '<Leader>wt',         function() _open(_wiki_index_path(0), 'tabedit') end,  o('wiki index (tab)'))
+  kmap('n', '<Leader>ws',         function() require('nuwiki.commands').wiki_ui_select() end, o('pick wiki'))
+  kmap('n', '<Leader>wi',         function() _open(_diary_path(nil)) end,                o('diary index'))
+  kmap('n', '<Leader>w<Leader>w', function() _open(_diary_path(0)) end,                  o('today diary'))
+  kmap('n', '<Leader>w<Leader>y', function() _open(_diary_path(-1)) end,                 o('yesterday diary'))
+  kmap('n', '<Leader>w<Leader>t', function() _open(_diary_path(1)) end,                  o('tomorrow diary'))
+  kmap('n', '<Leader>w<Leader>i', function() require('nuwiki.commands').diary_generate_index() end, o('rebuild diary index'))
+end
+
 function M.setup(opts)
   config.apply(opts or {})
 
@@ -30,6 +82,7 @@ function M.setup(opts)
   end
 
   lsp.register()
+  _setup_global_mappings()
 end
 
 function M.install()

lua/nuwiki/keymaps.lua

@@ -160,8 +160,8 @@ function M.attach(bufnr, mappings)
 
   -- ===== Wiki prefix (`<Leader>w*`) =====
   if on('wiki_prefix') then
-    map('n', '<Leader>ww', cmd.diary_today,    { desc = 'nuwiki: open default wiki / today' }, bufnr)
+    map('n', '<Leader>ww', function() cmd.wiki_index(0) end,     { desc = 'nuwiki: open wiki index' }, bufnr)
-    map('n', '<Leader>wt', cmd.diary_today,    { desc = 'nuwiki: open today\'s diary' }, bufnr)
+    map('n', '<Leader>wt', function() cmd.wiki_tab_index(0) end, { desc = 'nuwiki: open wiki index (tab)' }, bufnr)
     map('n', '<Leader>ws', cmd.wiki_ui_select, { desc = 'nuwiki: pick wiki' }, bufnr)
     map('n', '<Leader>wi', cmd.diary_index,    { desc = 'nuwiki: open diary index' }, bufnr)
     map('n', '<Leader>w<Leader>w', cmd.diary_today,     { desc = 'nuwiki: today' }, bufnr)

plugin/nuwiki.vim

@@ -27,3 +27,17 @@ augroup END
 " :NuwikiInstall — convenience wrapper around scripts/download_bin.vim, so
 " users don't have to invoke a plugin-manager build hook by hand.
 command! -nargs=0 NuwikiInstall execute 'source' fnamemodify(resolve(expand('<sfile>:p')), ':h:h') . '/scripts/download_bin.vim'
+
+" Global entry-point mappings — work from any buffer, not just .wiki files.
+" Files are opened directly from config (no LSP required); the server
+" auto-starts via the FileType autocmd once the vimwiki buffer loads.
+if !get(g:, 'nuwiki_no_default_mappings', 0)
+  nnoremap <silent> <Leader>ww         :call nuwiki#commands#open_wiki_path(0)<CR>
+  nnoremap <silent> <Leader>wt         :call nuwiki#commands#open_wiki_path(1)<CR>
+  nnoremap <silent> <Leader>ws         :call nuwiki#commands#wiki_ui_select()<CR>
+  nnoremap <silent> <Leader>wi         :call nuwiki#commands#open_diary_index_path()<CR>
+  nnoremap <silent> <Leader>w<Leader>w :call nuwiki#commands#open_diary_path(0)<CR>
+  nnoremap <silent> <Leader>w<Leader>y :call nuwiki#commands#open_diary_path(-1)<CR>
+  nnoremap <silent> <Leader>w<Leader>t :call nuwiki#commands#open_diary_path(1)<CR>
+  nnoremap <silent> <Leader>w<Leader>i :call nuwiki#commands#diary_generate_index()<CR>
+endif