From 15bd330b068cab4ec207db11dd7fc53ebe27732a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Forsman?= <bjorn.forsman@gmail.com>
Date: Sat, 1 Jul 2023 08:19:44 +0200
Subject: [PATCH] nixos: show which files are related to "not applying GID/UID
 change"

I initially thought it was related to /var/lib/nixos/{gid-map,uid-map},
but it seems that to migrate GID/UID you have to edit
/etc/{group,passwd} (and update GID/UID in all files). So mention those
files in the warning messages.
---
 nixos/modules/config/update-users-groups.pl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/nixos/modules/config/update-users-groups.pl b/nixos/modules/config/update-users-groups.pl
index 54352a517a24..75c343523e27 100644
--- a/nixos/modules/config/update-users-groups.pl
+++ b/nixos/modules/config/update-users-groups.pl
@@ -147,7 +147,7 @@ foreach my $g (@{$spec->{groups}}) {
     if (defined $existing) {
         $g->{gid} = $existing->{gid} if !defined $g->{gid};
         if ($g->{gid} != $existing->{gid}) {
-            dry_print("warning: not applying", "warning: would not apply", "GID change of group ‘$name’ ($existing->{gid} -> $g->{gid})");
+            dry_print("warning: not applying", "warning: would not apply", "GID change of group ‘$name’ ($existing->{gid} -> $g->{gid}) in /etc/group");
             $g->{gid} = $existing->{gid};
         }
         $g->{password} = $existing->{password}; # do we want this?
@@ -209,7 +209,7 @@ foreach my $u (@{$spec->{users}}) {
     if (defined $existing) {
         $u->{uid} = $existing->{uid} if !defined $u->{uid};
         if ($u->{uid} != $existing->{uid}) {
-            dry_print("warning: not applying", "warning: would not apply", "UID change of user ‘$name’ ($existing->{uid} -> $u->{uid})");
+            dry_print("warning: not applying", "warning: would not apply", "UID change of user ‘$name’ ($existing->{uid} -> $u->{uid}) in /etc/passwd");
             $u->{uid} = $existing->{uid};
         }
     } else {