[OSSTEST PATCH 29/49] mg-debian-installer-update: support overlay-intramfs-SUITE

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

This lets us patch the installer more easily.

No uses yet.

Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---
 mg-debian-installer-update | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/mg-debian-installer-update b/mg-debian-installer-update
index f1e682f9..fb4fe2ab 100755
--- a/mg-debian-installer-update
+++ b/mg-debian-installer-update
@@ -33,6 +33,8 @@ sbase=$site/dists/$suite
 
 src=$sbase/main/installer-$arch/current/images/netboot/
 
+osstest_dir="$(pwd)"
+
 case ${suite}_${arch} in
     lenny_armhf|squeeze_armhf|lenny_arm64|squeeze_arm64|wheezy_arm64)
         # No such thing.
@@ -188,6 +190,24 @@ if [ "x$specialkernel" != x ]; then
     rm -rf x
 fi
 
+overlay_initrd=$osstest_dir/overlay-initrd-$suite
+if [ -e "$overlay_initrd" ]; then
+    for f in $files; do
+        s=${f/:*} ; d=${f/*:}
+        case "$d" in
+            *initrd*)
+                echo "adding $overlay_initrd to $d"
+                (
+                    set -e
+                    cd "$overlay_initrd"
+                    find -print0 | cpio -0 -Hnewc -o \
+                        | gzip -9nf
+                ) >>$d.new
+                ;;
+        esac
+    done
+fi
+
 for f in $files; do
         s=${f/:*} ; d=${f/*:}
         mv -f $d.new $d
-- 
2.20.1