lua help - add pushd command

[eggbean]

Hi. I don't know lua and I always have trouble with it when I need to do something in a nvim plugin (I am totally fine with vimscript).

I am using this zoxide.lua script to add zoxide support to clink/cmd, but I also use CD Deluxe, which I really like and find very convenient.

For zoxide.lua to work with CD Deluxe I need to add a pushd %cd% command before zoxide changes directory. How can I insert that here?

-- =============================================================================
--
-- Define aliases.
--

-- 'z' alias
local function __zoxide_z(keywords)
  if #keywords == 0 then
    return __zoxide_cd(os.getenv 'USERPROFILE')
  elseif #keywords == 1 then
    local keyword = keywords[1]
    if keyword == '-' then
      return __zoxide_cd '-'
    elseif os.isdir(keyword) then
      return __zoxide_cd(keyword)
    end
  end

  local cwd = '"' .. os.getcwd() .. '"'
  return __zoxide_query({ '--exclude', cwd }, keywords)
end

-- 'zi' alias
local function __zoxide_zi(keywords)
  return __zoxide_query({ '--interactive' }, keywords)
end

-- =============================================================================

I think there needs to be a pushd %cd% before each of the two return __zoxide_cd commands as well as the return __zoxide_query command.

I thought that adding this line before those command would work, but it breaks the whole thing:

return pushd(os.getenv 'CD')

[chrisant996]

Oh, it looks like you're trying to use Lua as though it's a shell scripting language. It is not. pushd is a shell command, not a Lua function.

And __zoxide_query and __zoxide_cd are functions defined in the Lua script, and they return a string. The string is returned to Clink, and Clink returns it to CMD, which executes the string as though the user typed it into the command prompt.

And __zoxide_query calls __zoxide_cd.

So you probably just need to change the __zoxide_cd function to return whatever command line you want to be executed. It sounds like you want to put two commands in the command line, something like " pushd %cd% & " .. preceding whatever normally gets returned.

[eggbean]

Ah, I see. When compounding cmd command with % how do I stop doskey macros from expanding? Now I am back to this problem. Thanks.

local function __zoxide_cd(dir)
  if os.getenv '_ZO_ECHO' == '1' then
    print(dir)
  end

  -- 'cd /d -' doesn't work for clink versions before v1.2.41 (https://github.com/chrisant996/clink/issues/191)
  -- lastest cmder release (v1.3.18) uses clink v1.1.45
  if dir == '-' and (clink.version_encoded or 0) < 10020042 then
    return ' pushd %cd% & cd -'
  end

  return ' pushd %cd% & cd /d ' .. dir
end

[chrisant996]

Add a space.

Since it's typical to put a space after &, a second space is needed to avoid doskey expansion.

(It's mentioned in passing here. I thought the enhanced doskey expansion rules were documented somewhere, but maybe not; I'll add that.)

Or another way is to use a semicolon to disable doskey expansion.

[eggbean]

Oh, I just needed to add another space after the &. Thanks for the help.