From e6407986535c5f17fff79315e7b541d8258d64e0 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Fri, 23 Jun 2017 15:43:39 +0200
Subject: bin/common-functions: bin/mksrcinfo new and used via systemd-nspawn
 with overlayfs to generate .SRCINFO

---
 bin/common-functions | 31 ++++++++++++++++++++++++++-----
 1 file changed, 26 insertions(+), 5 deletions(-)

(limited to 'bin/common-functions')

diff --git a/bin/common-functions b/bin/common-functions
index b07e75d..714a05a 100755
--- a/bin/common-functions
+++ b/bin/common-functions
@@ -194,15 +194,36 @@ generate_package_metadata() {
     exit 1
   fi
 
+  overlays_dir="$(mktemp -d)"
+
+  sudo mount -t tmpfs none "${overlays_dir}"
+
+  mkdir \
+    "${overlays_dir}/upper" \
+    "${overlays_dir}/work" \
+    "${overlays_dir}/merged"
+
+  sudo mount -t overlay overlay -o lowerdir="${PKGBUILD%/*}":"/",upperdir="${overlays_dir}/upper",workdir="${overlays_dir}/work" "${overlays_dir}/merged"
+
   (
-    cd "${PKGBUILD%/*}"
+    cd "${overlays_dir}/merged"
     apply_package_customizations
-    grep -q '\$CARCH' 'PKGBUILD' && \
-      CARCH=i686 makepkg --printsrcinfo > \
-        "${file_prefix}.SRCINFO" || \
-      mksrcinfo -o "${file_prefix}.SRCINFO"
   )
 
+  sudo systemd-nspawn -q \
+    -D "${overlays_dir}/merged" \
+    --register=no \
+    ${base_dir}/bin/mksrcinfo
+
+  sudo umount -f "${overlays_dir}/merged"
+
+  mv \
+    "${overlays_dir}/upper/.SRCINFO" \
+    "${file_prefix}.SRCINFO"
+
+  sudo umount -f "${overlays_dir}"
+  rmdir "${overlays_dir}"
+
   # otherwise this just calls for trouble
   sed -i '/=\s*$/d' "${file_prefix}.SRCINFO"
 
-- 
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