added 'packadd' provider (closes issue #64)

README.md

@@ -176,6 +176,7 @@ nnoremap <c-P> <cmd>lua require('fzf-lua').files()<CR>
 |`spell_suggest`|spelling suggestions|
 |`tags`|project tags|
 |`btags`|buffer tags|
+|`packadd`|:packadd <package>|
 
 
 ## Customization

lua/fzf-lua/actions.lua

@@ -25,7 +25,8 @@ M.act = function(actions, selected)
   -- the table will contain the results directly
   -- otherwise 'selected[1]` will contain the keybind
   -- empty string in selected[1] represents default
-  if #selected>1 and #selected[1]>0 then action = selected[1] end
+  if actions and utils.tbl_length(actions) > 1 and
+    #selected>1 and #selected[1]>0 then action = selected[1] end
   if actions[action] then
     actions[action](selected)
   end
@@ -167,6 +168,13 @@ M.spell_apply = function(selected)
   vim.cmd("stopinsert")
 end
 
+M.packadd = function(selected)
+  if not selected then return end
+  for i = 1, #selected do
+    vim.cmd("packadd " .. selected[i])
+  end
+end
+
 M.help = function(selected)
   local vimcmd = "help"
   M.vimcmd(vimcmd, selected)

lua/fzf-lua/config.lua

@@ -417,6 +417,12 @@ M.globals.nvim = {
         ["default"]       = actions.spell_apply,
       },
     },
+    packadd = {
+      prompt              = 'packadd> ',
+      actions = {
+        ["default"]       = actions.packadd,
+      },
+    },
   }
 M.globals.file_icon_colors = {
     ["lua"]       = "blue",

lua/fzf-lua/init.lua

@@ -78,6 +78,7 @@ M.commands = require'fzf-lua.providers.nvim'.commands
 M.command_history = require'fzf-lua.providers.nvim'.command_history
 M.search_history = require'fzf-lua.providers.nvim'.search_history
 M.spell_suggest = require'fzf-lua.providers.nvim'.spell_suggest
+M.packadd = require'fzf-lua.providers.nvim'.packadd
 
 M.lsp_typedefs = require'fzf-lua.providers.lsp'.typedefs
 M.lsp_references = require'fzf-lua.providers.lsp'.references

lua/fzf-lua/providers/nvim.lua

@@ -252,4 +252,28 @@ M.spell_suggest = function(opts)
 
 end
 
+
+M.packadd = function(opts)
+
+  opts = config.normalize_opts(opts, config.globals.nvim.packadd)
+
+  coroutine.wrap(function ()
+
+    local entries = vim.fn.getcompletion('', 'packadd')
+
+    if vim.tbl_isempty(entries) then return end
+
+    opts.nomulti = false
+    opts.preview = nil
+    opts.preview_window = 'hidden:down:0'
+
+    local selected = core.fzf(opts, entries)
+
+    if not selected then return end
+    actions.act(opts.actions, selected)
+
+  end)()
+
+end
+
 return M