feat: add treesitter query formatter (#425)

* [feat]: add treesitter query formatter

* [docgen] Update docs
skip-checks: true

* lint

* refactor: fix condition and simplify some logic

* [docgen] Update docs
skip-checks: true

---------

Co-authored-by: Magnus Larsen <mzla@topsoe.com>
Co-authored-by: Github Actions <actions@github>
Co-authored-by: Steven Arcangeli <stevearc@stevearc.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/lua/conform/formatters/format-queries.lua b/lua/conform/formatters/format-queries.lua
new file mode 100644
index 0000000..6f7da25
--- /dev/null
+++ b/lua/conform/formatters/format-queries.lua
@@ -0,0 +1,21 @@
+---@return nil|string
+local function get_format_script()
+  return vim.api.nvim_get_runtime_file("scripts/format-queries.lua", false)[1]
+end
+
+---@type conform.FileFormatterConfig
+return {
+  meta = {
+    url = "https://github.com/nvim-treesitter/nvim-treesitter/blob/main/CONTRIBUTING.md#formatting",
+    description = "Tree-sitter query formatter.",
+  },
+  condition = function()
+    local ok = pcall(vim.treesitter.language.inspect, "query")
+    return ok and get_format_script() ~= nil
+  end,
+  command = "nvim",
+  args = function()
+    return { "-l", get_format_script(), "$FILENAME" }
+  end,
+  stdin = false,
+}