From ac756a3a8208a18e764f87016a04fc8212dcc275 Mon Sep 17 00:00:00 2001
From: Rohit Singh <rsrohitsingh682@gmail.com>
Date: Fri, 13 Dec 2024 09:57:53 +0530
Subject: [PATCH] feat: add priority to hooks.

---
 modules/hook.nix       | 11 ++++++++++-
 modules/pre-commit.nix | 16 +++++++++++++++-
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/modules/hook.nix b/modules/hook.nix
index ab58c52b..3fa9f7ff 100644
--- a/modules/hook.nix
+++ b/modules/hook.nix
@@ -135,6 +135,15 @@ in
       default = true;
     };
 
+    priority = mkOption {
+      type = types.number;
+      description = ''
+        Defines the priority order in which hooks are executed.
+        Lower the number, the higher the precedence.
+      '';
+      default = 0;
+    };
+
     fail_fast = mkOption {
       type = types.bool;
       description = ''
@@ -189,7 +198,7 @@ in
   config = {
     raw =
       {
-        inherit (config) name entry language files types types_or exclude_types pass_filenames fail_fast require_serial stages verbose always_run args;
+        inherit (config) name entry language files types types_or exclude_types pass_filenames priority fail_fast require_serial stages verbose always_run args;
         id = config.name;
         exclude = mergeExcludes config.excludes;
       };
diff --git a/modules/pre-commit.nix b/modules/pre-commit.nix
index d3578d1c..905f9c91 100644
--- a/modules/pre-commit.nix
+++ b/modules/pre-commit.nix
@@ -30,7 +30,21 @@ let
   enabledHooks = filterAttrs (id: value: value.enable) cfg.hooks;
   enabledExtraPackages = builtins.concatLists (mapAttrsToList (_: value: value.extraPackages) enabledHooks);
   processedHooks =
-    mapAttrsToList (id: value: value.raw // { inherit id; }) enabledHooks;
+    let
+      # Sort the list of hooks by priority (lower number = higher priority)
+      sortedHooks = builtins.sort
+        (a: b: a.priority < b.priority)
+        (mapAttrsToList
+          (id: value:
+            value.raw // {
+              inherit id;
+              priority = value.raw.priority;
+            }
+          )
+          enabledHooks
+        );
+    in
+    sortedHooks;
 
   configFile =
     performAssertions (