From a2b1c19a51b2528af4a7e75e3e1546da56b4c96c Mon Sep 17 00:00:00 2001
From: Nick Hu <me@nickhu.co.uk>
Date: Sat, 12 Nov 2022 18:33:16 +0000
Subject: Nix feature: allow extra configuration of /etc/nix/nix.conf (#277)

---
 src/nix/install.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src/nix/install.sh')

diff --git a/src/nix/install.sh b/src/nix/install.sh
index 2fc4367..6141d7e 100755
--- a/src/nix/install.sh
+++ b/src/nix/install.sh
@@ -9,6 +9,7 @@ VERSION="${VERSION:-"latest"}"
 MULTIUSER="${MULTIUSER:-"true"}"
 PACKAGES="${PACKAGES//,/ }"
 FLAKEURI="${FLAKEURI:-""}"
+EXTRANIXCONFIG="${EXTRANIXCONFIG:-""}"
 USERNAME="${USERNAME:-"${_REMOTE_USER:-"automatic"}"}"
 
 # Nix keys for securly verifying installer download signature per https://nixos.org/download.html#nix-verify-installation
@@ -99,6 +100,16 @@ create_or_update_file /etc/nix/nix.conf 'sandbox = false'
 if  [ ! -z "${FLAKEURI}" ] && [ "${FLAKEURI}" != "none" ]; then
     create_or_update_file /etc/nix/nix.conf 'experimental-features = nix-command flakes'
 fi
+# Extra nix config
+if [ ! -z "${EXTRANIXCONFIG}" ]; then
+    OLDIFS=$IFS
+    IFS=","
+        read -a extra_nix_config <<< "$EXTRANIXCONFIG"
+        for line in "${extra_nix_config[@]}"; do
+            create_or_update_file /etc/nix/nix.conf "$line"
+        done
+    IFS=$OLDIFS
+fi
 
 # Create entrypoint if needed
 if [ ! -e "/usr/local/share/nix-entrypoint.sh" ]; then
-- 
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