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path: root/.config/nvim/plugin/10-treesitter.lua
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--
-- 10-treesitter.lua
--
-- * Installs treesitter parsers.
-- * Sets up an autocommand to parse the tree synchronously on 'FileType'.
--   This file should sort early (alphabetically) in plugin/ so that this autcommand triggers before other autcommands
--   that use the tree.
--

require("nvim-treesitter").install({
	"bash",
	"diff",
	"gitcommit",
	"git_rebase",
	"ini",
	"json",
	"lua",
	"python",
	"readline",
	"vim",
	"vimdoc",
})

-- Parse the tree synchronously as early as possible (which is as soon as we know the filetype)
-- This can be useful for example so that the tree is ready before any other code calls vim.treesitter.get_node(), which
-- returns nil when the tree is not parsed.
-- TODO actually test it
vim.api.nvim_create_autocmd("FileType", {
	desc = "Start treesitter",
	group = vim.g.dotfiles.augroup,
	callback = function()
		local parser = vim.treesitter.get_parser(0)
		if parser == nil then
			return
		end
		parser:parse()
		vim.treesitter.start()
	end,
})