From 1283bf6ebbdee4d980b7551bed4c6596805e812c Mon Sep 17 00:00:00 2001
From: novenary <novenary@kwak.zip>
Date: Thu, 7 Mar 2024 12:16:58 +0200
Subject: [PATCH] xdg-user-dirs: check for existing symlink
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When a non-directory, such as a file or a dead symlink, already exists,
mkdir -p fails with "cannot create directory ‘...’: File exists".

This is a problem when, for example, a symlink points to a directory on
a filesystem that isn't mounted yet.
---
 modules/misc/xdg-user-dirs.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/misc/xdg-user-dirs.nix b/modules/misc/xdg-user-dirs.nix
index c9912812..1198ea03 100644
--- a/modules/misc/xdg-user-dirs.nix
+++ b/modules/misc/xdg-user-dirs.nix
@@ -137,7 +137,8 @@ in {
 
     home.activation.createXdgUserDirectories = mkIf cfg.createDirectories (let
       directoriesList = attrValues directories;
-      mkdir = (dir: ''run mkdir -p $VERBOSE_ARG "${dir}"'');
+      mkdir =
+        (dir: ''[[ -L "${dir}" ]] || run mkdir -p $VERBOSE_ARG "${dir}"'');
     in lib.hm.dag.entryAfter [ "linkGeneration" ]
     (strings.concatMapStringsSep "\n" mkdir directoriesList));
   };