From 4784e10266c49fad6d4353137642141dd722f275 Mon Sep 17 00:00:00 2001
From: Dmitry Bogatov <serenity@kaction.cc>
Date: Fri, 15 Mar 2024 21:21:34 -0400
Subject: [PATCH] treewide: Add treefmt.toml with configuration to format Nix
 files

---
 treefmt.toml | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 treefmt.toml

diff --git a/treefmt.toml b/treefmt.toml
new file mode 100644
index 000000000..fec0bf262
--- /dev/null
+++ b/treefmt.toml
@@ -0,0 +1,14 @@
+# One CLI to format the code tree - https://github.com/numtide/treefmt
+[formatter.nix]
+command = "alejandra"
+options = ["-q"]
+includes = ["*.nix"]
+excludes = [
+  # Naturally, I don't want to reformat vendored nixpkgs, otherwise no patch will ever
+  # apply.
+  "nixpkgs/*.nix",
+  # Despite the extension, this file is actually jinja2 tempate for nix file.
+  "cookiecutter/haskell/*/default.nix",
+  # Auto-generated by niv(1)
+  "nix/sources.nix",
+]