LuaSnip problem

[gilfuser]

Hi there!
I use SCNvim for a while, but I had an outdated version and recently I'm catching up with the new stuff. Very cool stuff!

I'm trying to add LuaSnip to the SCNvim setup following this post and I'm changing the init.vim for the init.lua.

I put this in the end of the luasnip.lua config file I copy pasted from here:
ls.snippets.supercollider = require'scnvim/utils'.get_snippets()

I did the :SCNvimGenerateAssets which generate the assets here:

Generated tags file: /home/skmecs/.cache/nvim/scnvim/tags
Generated syntax file: /home/skmecs/.cache/nvim/scnvim/classes.vim
Generated snippets file: /home/skmecs/.cache/nvim/scnvim/scnvim_snippets.lua

I checked and they are really there, with their content and all.

but then, when I save the buffer and : source % or open a buffer I get this error.

Error detected while processing /home/skmecs/.config/nvim/lua/plugins/luasnip.lua:
E5113: Error while calling lua chunk: /home/skmecs/.config/nvim/lua/plugins/luasnip.lua:564: attempt to index field 'snippets' (a nil value)
stack traceback:
        /home/skmecs/.config/nvim/lua/plugins/luasnip.lua:564: in main chunk

In my scnvim.lua config file I put this:
vim.g.scnvim_snippet_format = 'luasnip'

If I try SinOsc.ar <C-k> nothing happens, as spected.
My brand new init.lua looks like this:

vim.cmd [[
    syntax enable
    filetype plugin on
]]
local o = vim.o
local g = vim.g
local set = vim.opt

require "paq" {
    "savq/paq-nvim";                  -- Let Paq manage itself

    "neovim/nvim-lspconfig";          -- Mind the semi-colons
    "hrsh7th/nvim-cmp";
    'hrsh7th/cmp-nvim-lsp';
    'hrsh7th/cmp-buffer';
    'hrsh7th/cmp-path';
    'hrsh7th/cmp-cmdline';
    'hrsh7th/nvim-cmp';

    'L3MON4D3/LuaSnip';
    'saadparwaiz1/cmp_luasnip';
    'windwp/nvim-autopairs';
    'numToStr/Comment.nvim';
    'karb94/neoscroll.nvim';

    'nvim-treesitter/nvim-treesitter';
    'JoosepAlviste/nvim-ts-context-commentstring';
    'nvim-treesitter/nvim-treesitter-context';
    'p00f/nvim-ts-rainbow';
    'nvim-treesitter/nvim-treesitter-refactor';
    'nvim-treesitter/playground';
    { 'junegunn/fzf', run = './install --bin', };
    'kyazdani42/nvim-web-devicons';
    -- {'ibhagwan/fzf-lua', branch = 'main' };
    'vijaymarupudi/nvim-fzf';
    'davidgranstrom/scnvim';
    'madskjeldgaard/fzf-sc';
    {"lervag/vimtex", opt=true};      -- Use braces when passing options

    "ellisonleao/gruvbox.nvim";
    "tidalcycles/vim-tidal";
    'zhou13/vim-easyescape';
    'nvim-lualine/lualine.nvim';
}

g.mapleader = 'ö'
g.maplocaleader = ','

g.python2_host_prog = "/usr/bin/python2"
g.python3_host_prog = "/usr/bin/python3"

require ('skmecs.settings')
require ('skmecs.themes')
require ('plugins.easy-escape')
require ('plugins.nvim-cpm')
require ('plugins.autopairs')
require ('plugins.comment')
require('plugins.neoscroll')
require('plugins.lualine')
require('plugins.treesitter')
require('plugins.scnvim')
require('plugins.luasnip')

Everything but LuaSnip, playground and fzf-sc work fine. I'll make another Q for the latter.

Thank you in advance for any direction pointed.
If I could give any info that could help undertand what's happening, please ask.

bests,
Gil

[davidgranstrom]

Hi,

I spotted two things from the config and error message.

1. vim.g.scnvim_snippet_format = 'luasnip' is no longer a supported option, instead specify snippet.engine.name in the config like this:

snippet = {
  engine = {
    name = 'luasnip',
  },
},

See this page for an overview off the default options, and check out the reference for detailed descriptions.

Error detected while processing /home/skmecs/.config/nvim/lua/plugins/luasnip.lua:
E5113: Error while calling lua chunk: /home/skmecs/.config/nvim/lua/plugins/luasnip.lua:564: attempt to index field 'snippets' (a nil value)
stack traceback:
        /home/skmecs/.config/nvim/lua/plugins/luasnip.lua:564: in main chunk

This error message is not related to scnvim but to luasnip. Possibly you are missing a require for luasnip at the beginning of your script?

local ls = require'luasnip'
ls.snippets.supercollider = require'scnvim/utils'.get_snippets()

[gilfuser]

/home/skmecs/.config/nvim/lua/plugins/luasnip.lua line 564 is exactly this line:

ls.snippets.supercollider = require'scnvim/utils'.get_snippets()

I tried it in the config file for scnvim and in the one for luasnip. With local ls = require'luasnip' at the beggining.

[davidgranstrom]

There seems to have been a breaking change in the LuaSnip API: L3MON4D3/LuaSnip#81 (comment)

This works for me:

ls.add_snippets('supercollider', {
  s('sb', { t('s.boot;') }),
}, {
  key = 'supercollider'
})

And

ls.add_snippets('supercollider', require'scnvim.utils'.get_snippets())

..to use the generated snippets. Note that this file is pretty big so adding the snippets it will affect the overall startup time of nvim. If you plan to use the generated snippets you might consider loading them by using an autocmd instead.