neovim-config/lua/plugins/lint.lua

return {
	{
		"mfussenegger/nvim-lint",
		event = "VeryLazy",
		config = function()
			local lint = require("lint")
			-- sqlfluff --
			lint.linters.sqlfluff.args = {
				"lint",
				"--format=json",
				"--dialect=postgres",
			}

			-- yamllint --
			lint.linters.yamllint.args = {
				args = { "--format=parsable", "-d relaxed" },
			}
			-- actionlint --
			---- Set custom filetype to not lint everything
			--- https://github.com/mfussenegger/nvim-lint/issues/591#issuecomment-2142162704
			vim.filetype.add({
				pattern = {
					['.*/.github/workflows/.*%.yml'] = 'yaml.ghaction',
					['.*/.github/workflows/.*%.yaml'] = 'yaml.ghaction',
				},
			})

			local linters = {
				bash = { "shellcheck" },
				dockerfile = { "hadolint" },
				ghaction = { "actionlint" },
				go = { "golangcilint" },
				sql = { "sqlfluff" },
				yaml = { "yamllint" },
				zsh = { "zsh" },
			}
			-- set linters --
			lint.linters_by_ft = linters
			-- set autocommands --
			for ft, ft_linters in pairs(linters) do
				local on_change = false
				local on_write = false
				for _, l in ipairs(ft_linters) do
					if lint.linters[l].stdin then
						on_change = true
					else
						on_write = true
					end
				end
				if on_change then
					vim.api.nvim_create_autocmd({ "FileType" }, {
						pattern = ft,
						callback = function()
							vim.api.nvim_create_autocmd({ "TextChanged" }, {
								callback = function()
									lint.try_lint(nil, { ignore_errors = true })
								end,
							})
						end,
					})
				end
				if on_write then
					vim.api.nvim_create_autocmd({ "FileType" }, {
						pattern = ft,
						callback = function()
							vim.api.nvim_create_autocmd({ "BufWritePost" }, {
								callback = function()
									lint.try_lint(nil, { ignore_errors = true })
								end,
							})
							-- we want to also call linters here so we don't wait
							-- for the first write to happen
							lint.try_lint(nil, { ignore_errors = true })
						end,
					})
				end
			end
		end
	},
}