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Only attach after parser is installed

This commit is contained in:
orip 2025-12-11 22:25:24 +02:00
parent 2442c57b0b
commit 714d9c1825
1 changed files with 14 additions and 14 deletions
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28
init.lua
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@ -947,11 +947,10 @@ require('lazy').setup({
config = function() config = function()
---@param buf integer ---@param buf integer
---@param language string ---@param language string
---@return boolean local function treesitter_try_attach(buf, language)
local function treesitter_attach(buf, language) -- check if parser exists and load it
-- check if parser exists before starting highlighter
if not vim.treesitter.language.add(language) then if not vim.treesitter.language.add(language) then
return false return
end end
-- enables syntax highlighting and other treesitter features -- enables syntax highlighting and other treesitter features
vim.treesitter.start(buf, language) vim.treesitter.start(buf, language)
@ -962,10 +961,9 @@ require('lazy').setup({
-- enables treesitter based indentation -- enables treesitter based indentation
vim.bo.indentexpr = "v:lua.require'nvim-treesitter'.indentexpr()" vim.bo.indentexpr = "v:lua.require'nvim-treesitter'.indentexpr()"
return true
end end
local available_parsers = require('nvim-treesitter.config').get_available() local available_parsers = require('nvim-treesitter').get_available()
vim.api.nvim_create_autocmd('FileType', { vim.api.nvim_create_autocmd('FileType', {
callback = function(args) callback = function(args)
local buf, filetype = args.buf, args.match local buf, filetype = args.buf, args.match
@ -974,17 +972,19 @@ require('lazy').setup({
return return
end end
if not (treesitter_attach(buf, language) or vim.tbl_contains(available_parsers, language)) then -- try to enable treesitter features in case the parser exists but is not available from `nvim-treesitter`
if not vim.tbl_contains(available_parsers, language) then
treesitter_try_attach(buf, language)
return return
end end
-- automaically install parser for missing languages -- if a parser is available in `nvim-treesitter` enable it after ensuring it is installed
-- attempt to install even if it is available accoring to `vim.treesitter.langauge.add()`, local installed_parsers = require('nvim-treesitter').get_installed 'parsers'
-- to ensure the latest version is installed using `nvim-treesitter`, instead of the outdated vendored parser if vim.tbl_contains(installed_parsers, language) then
if not vim.tbl_contains(require('nvim-treesitter.config').get_installed 'parsers', language) then treesitter_try_attach(buf, language)
-- attempt to start highlighter after installing missing language else
require('nvim-treesitter.install').install(language):await(function() require('nvim-treesitter').install(language):await(function()
treesitter_attach(buf, language) treesitter_try_attach(buf, language)
end) end)
end end
end, end,