From 946323f0cad17e511ab0cf5052506e4f565edfe0 Mon Sep 17 00:00:00 2001
From: qaristote <quentin.aristote@ens.fr>
Date: Tue, 14 Mar 2023 12:23:56 +0100
Subject: home & nixos: git: add config for system flake directory

---
 modules/home-manager/personal/programs/git.nix | 11 ++++++++++-
 modules/nixos/personal/nix.nix                 |  8 ++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/modules/home-manager/personal/programs/git.nix b/modules/home-manager/personal/programs/git.nix
index 85ce0e4..a34b1b3 100644
--- a/modules/home-manager/personal/programs/git.nix
+++ b/modules/home-manager/personal/programs/git.nix
@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ config, lib, pkgs, ... }@extraArgs:
 
 let
   primaryEmail = let
@@ -28,5 +28,14 @@ in {
           result
         ''
       ];
+
+    extraConfig = {
+      safe.directory = lib.mkIf (extraArgs ? osConfig) (
+        let 
+          flake = extraArgs.osConfig.system.autoUpgrade.flake;
+          flakeIsValid = flake != null && lib.hasPrefix "git+file://" flake;
+          flakePath = lib.removePrefix "git+file://" flake;
+         in lib.optional flakeIsValid flakePath);
+    };
   };
 }
diff --git a/modules/nixos/personal/nix.nix b/modules/nixos/personal/nix.nix
index 156f045..a4948f4 100644
--- a/modules/nixos/personal/nix.nix
+++ b/modules/nixos/personal/nix.nix
@@ -45,5 +45,13 @@ in {
         wantedBy = lib.mkIf config.nix.gc.automatic [ "nix-gc.service" ];
       };
     };
+    programs.git = lib.mkIf (cfg.flake != null 
+                            && lib.hasPrefix "git+file" cfg.flake) {
+      enable = true;
+      config.user =  {
+        name = "Root user of ${config.networking.hostName}";
+        email = "root@${config.networking.hostName}";
+      };
+    };
   };
 }
-- 
cgit v1.2.3