From 236c6ec21420e44c38ec76de4fc3335bec1859b5 Mon Sep 17 00:00:00 2001
From: Sam Willcocks <sam@wlcx.cc>
Date: Sat, 16 Apr 2022 17:45:41 +0100
Subject: [PATCH] gpg: fix handling of multiple public keys

When processing `publicKeys` entries, handle entries that contain
multiple public keys (i.e. gpg --show-key returns multiple `pub`
lines) properly, setting the trust level for each key.

PR #2897

(cherry picked from commit 620ed197f3624dafa5f42e61d5c043f39b8df366)
---
 modules/programs/gpg.nix | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/modules/programs/gpg.nix b/modules/programs/gpg.nix
index 184c2516..f13873bb 100644
--- a/modules/programs/gpg.nix
+++ b/modules/programs/gpg.nix
@@ -109,14 +109,15 @@ let
     }
 
     function importTrust() {
-      local keyId trust
-      keyId="$(gpgKeyId "$1")"
+      local keyIds trust
+      IFS='\n' read -ra keyIds <<< "$(gpgKeyId "$1")"
       trust="$2"
-      if [[ -n $keyId ]] ; then
+      for id in "''${keyIds[@]}" ; do
         { echo trust; echo "$trust"; (( trust == 5 )) && echo y; echo quit; } \
-          | ${gpg} --no-tty --command-fd 0 --edit-key "$keyId"
-      fi
+          | ${gpg} --no-tty --command-fd 0 --edit-key "$id"
+      done
     }
+
   '';
 
   keyringFiles = let