reproducible Debian: vary the source dir name

This hapens for example when some builders use 'dpkg-source -x' and others
build out of a SCM.

Signed-off-by: Holger Levsen <holger@layer-acht.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/hosts/cbxi4a-armhf-rb/etc/pbuilder/rebuild-hooks/A01_modfiy_src_dir b/hosts/cbxi4a-armhf-rb/etc/pbuilder/rebuild-hooks/A01_modfiy_src_dir
new file mode 100755
index 00000000..7750fdfe
--- /dev/null
+++ b/hosts/cbxi4a-armhf-rb/etc/pbuilder/rebuild-hooks/A01_modfiy_src_dir
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -e
+
+# exit if we are in the same UTS namespace as init ( != 2nd build )
+[ "$(readlink /proc/1/ns/uts)" = "$(readlink /proc/self/ns/uts)" ] && exit 0
+
+cd $BUILDDIR
+
+if [ "$(basename $(pwd))" != "2nd" ]; then
+	# build path variation disabled, so do nothing
+	exit 0
+fi
+
+# There should be only one file, the source directory.
+src_dir=$(ls | head -n 1)
+
+# We want to keep the build path length to minimise the diff. So we just
+# replace the first char of the source dir.
+mv $src_dir _${src_dir:1}