diff --git a/scripts/combo-layer-hook-default.sh b/scripts/combo-layer-hook-default.sh
new file mode 100755
index 0000000..1e3a3b9
--- /dev/null
+++ b/scripts/combo-layer-hook-default.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+# Hook to add source component/revision info to commit message
+# Parameter:
+#   $1 patch-file
+#   $2 revision
+#   $3 reponame
+
+patchfile=$1
+rev=$2
+reponame=$3
+
+sed -i -e "0,/^Subject:/s#^Subject: \[PATCH\] \($reponame: \)*\(.*\)#Subject: \[PATCH\] $reponame: \2#" $patchfile
+if grep -q '^Signed-off-by:' $patchfile; then
+    # Insert before Signed-off-by.
+    sed -i -e "0,/^Signed-off-by:/s#\(^Signed-off-by:.*\)#\(From $reponame rev: $rev\)\n\n\1#" $patchfile
+else
+    # Insert before final --- separator, with extra blank lines removed.
+    perl -e "\$_ = join('', <>); s/^(.*\S[ \t]*)(\n|\n\s*\n)---\n/\$1\n\nFrom $reponame rev: $rev\n---\n/s; print;" $patchfile >$patchfile.tmp
+    mv $patchfile.tmp $patchfile
+fi