From 21e5060b4dfa5b0ac9f5b053412c4a5039b6d046 Mon Sep 17 00:00:00 2001
From: bartus <szczepaniak.bartek+github@gmail.com>
Date: Wed, 3 Mar 2021 21:41:56 +0100
Subject: [PATCH] Remove redundant cache_dirs, fix read only cache_dirs issue

Fix #57
---
 arch-nspawn.in | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/arch-nspawn.in b/arch-nspawn.in
index cde1f60d..e665a59a 100644
--- a/arch-nspawn.in
+++ b/arch-nspawn.in
@@ -70,7 +70,7 @@ for host_mirror in "${host_mirrors[@]}"; do
 	if [[ $host_mirror == *file://* ]]; then
 		host_mirror=$(echo "$host_mirror" | sed -r 's#file://(/.*)/\$repo/os/\$arch#\1#g')
 		for m in "$host_mirror"/pool/*/; do
-			in_array "$m" "${cache_dirs[@]}" || cache_dirs+=("$m")
+			in_array "$m" "${cache_dirs[@]}" || extra_cache_dirs+=("$m")
 		done
 	fi
 done
@@ -81,14 +81,14 @@ while read -r line; do
 	for line in "${lines[@]}"; do
 		if [[ $line = file://* ]]; then
 			line=${line#file://}
-			in_array "$line" "${cache_dirs[@]}" || cache_dirs+=("$line")
+			in_array "$line" "${cache_dirs[@]}" || extra_cache_dirs+=("$line")
 		fi
 	done
 done < <($pacconf_cmd --config "${pac_conf:-$working_dir/etc/pacman.conf}" --repo-list)
 
 mount_args+=("--bind=${cache_dirs[0]//:/\\:}")
 
-for cache_dir in "${cache_dirs[@]:1}"; do
+for cache_dir in "${cache_dirs[@]:1}" "${extra_cache_dirs[@]}"; do
 	mount_args+=("--bind-ro=${cache_dir//:/\\:}")
 done
 
@@ -99,7 +99,12 @@ copy_hostconf () {
 
 	printf 'Server = %s\n' "${host_mirrors[@]}" >"$working_dir/etc/pacman.d/mirrorlist"
 
-	[[ -n $pac_conf ]] && cp "$pac_conf" "$working_dir/etc/pacman.conf"
+	if [[ -n $pac_conf ]]; then 
+		cp "$pac_conf" "$working_dir/etc/pacman.conf"
+		if (( ${#extra_cache_dirs[@]} != 0 )); then
+			sed -r "/^#?\\s*CacheDir.+/a CacheDir = ${extra_cache_dirs[*]}" -i "$working_dir/etc/pacman.conf"
+		fi
+	fi
 	[[ -n $makepkg_conf ]] && cp "$makepkg_conf" "$working_dir/etc/makepkg.conf"
 
 	local file
@@ -108,7 +113,6 @@ copy_hostconf () {
 		cp -T "$file" "$working_dir$file"
 	done
 
-	sed -r "s|^#?\\s*CacheDir.+|CacheDir = ${cache_dirs[*]}|g" -i "$working_dir/etc/pacman.conf"
 }
 # }}}