luarocks-packages-updater: nixfmt-rfc-style output formatting

Author: khaneliman

pkgs/by-name/lu/luarocks-packages-updater/updater.py

@@ -50,15 +50,16 @@ def format(self, record):
 TMP_FILE = "$(mktemp)"
 GENERATED_NIXFILE = "pkgs/development/lua-modules/generated-packages.nix"
 
-HEADER = """/* {GENERATED_NIXFILE} is an auto-generated file -- DO NOT EDIT!
-Regenerate it with: nix run nixpkgs#luarocks-packages-updater
-You can customize the generated packages in pkgs/development/lua-modules/overrides.nix
+HEADER = """/*
+  {GENERATED_NIXFILE} is an auto-generated file -- DO NOT EDIT!
+  Regenerate it with: nix run nixpkgs#luarocks-packages-updater
+  You can customize the generated packages in pkgs/development/lua-modules/overrides.nix
 */
 """.format(GENERATED_NIXFILE=GENERATED_NIXFILE)
 
 FOOTER = """
 }
-/* GENERATED - do not edit this file */
+# GENERATED - do not edit this file
 """
 
 
@@ -118,10 +119,16 @@ def generate_nix(self, results: list[tuple[LuaPlugin, str]], outfilename: str):
         with tempfile.NamedTemporaryFile("w+") as f:
             f.write(HEADER)
             header2 = textwrap.dedent(
-                """
-                { stdenv, lib, fetchurl, fetchgit, callPackage, ... }:
-                final: prev:
-                {
+            """
+            {
+              stdenv,
+              lib,
+              fetchurl,
+              fetchgit,
+              callPackage,
+              ...
+            }:
+            final: prev: {
             """
             )
             f.write(header2)
@@ -231,7 +238,8 @@ def generate_pkg_nix(plug: LuaPlugin):
         log.debug("running %s", " ".join(cmd))
 
         output = subprocess.check_output(cmd, text=True)
-        output = "callPackage(" + output.strip() + ") {};\n\n"
+        ## FIXME: luarocks nix command output isn't formatted properly
+        output = "callPackage(\n" + output.strip() + ") {};\n\n"
         return (plug, output, None)
     except subprocess.CalledProcessError as e:
         log.error("Failed to generate nix expression for %s: %s", plug.name, e)