archbuild.in: set pacman cache dir to /var/cache/archbuild32 in case of non-x86_64-build, so we do not use any-packages from x86_64 mirrors, and cross-mount inside to /var/cache/pacman/pkg

2 files changed, 11 insertions, 2 deletions

diff --git a/arch-nspawn.in b/arch-nspawn.in
index 93d3bf7..cf6c236 100644
--- a/arch-nspawn.in
+++ b/arch-nspawn.in
@@ -92,6 +92,7 @@ copy_hostconf () {
 	done
 
 	sed -r "s|^#?\\s*CacheDir.+|CacheDir = ${cache_dirs[*]}|g" -i "$working_dir/etc/pacman.conf"
+	eval "$(grep -a '^CARCH=' "$working_dir/etc/makepkg.conf")"
 	sed -i '/^Architecture = /s| auto$| '"$CARCH|" "$working_dir/etc/pacman.conf"
 }
 # }}}
@@ -108,8 +109,6 @@ fi
 build_mount_args
 copy_hostconf
 
-eval "$(grep -a '^CARCH=' "$working_dir/etc/makepkg.conf")"
-
 [[ -z $nosetarch ]] || unset CARCH
 
 exec ${CARCH:+setarch "$CARCH"} systemd-nspawn -q \
diff --git a/archbuild.in b/archbuild.in
index 0ac3c29..0a84687 100644
--- a/archbuild.in
+++ b/archbuild.in
@@ -41,6 +41,14 @@ done
 
 check_root SOURCE_DATE_EPOCH
 
+if [ "${arch}" = "x86_64" ]; then
+	cache_dir=''
+else
+	mkdir -p '/var/cache/archbuild32'
+	cache_dir='-c/var/cache/archbuild32'
+	makechrootpkg_args+=('-d/var/cache/archbuild32:/var/cache/pacman/pkg')
+fi
+
 # Pass all arguments after -- right to makepkg
 makechrootpkg_args+=("${@:$OPTIND}")
 
@@ -63,6 +71,7 @@ if ${clean_first} || [[ ! -d "${chroots}/${repo}-${arch}" ]]; then
 	setarch "${arch}" mkarchroot \
 		-C "@pkgdatadir@/pacman-${repo}.conf" \
 		-M "@pkgdatadir@/makepkg-${arch}.conf" \
+		${cache_dir} \
 		"${chroots}/${repo}-${arch}/root" \
 		"${base_packages[@]}" || abort
 else
@@ -70,6 +79,7 @@ else
 	arch-nspawn \
 		-C "@pkgdatadir@/pacman-${repo}.conf" \
 		-M "@pkgdatadir@/makepkg-${arch}.conf" \
+		${cache_dir} \
 		"${chroots}/${repo}-${arch}/root" \
 		pacman --arch ${arch} -Syu --noconfirm || abort
 fi