From 015fe5bc9e7f373013b16b18f09f109646af1787 Mon Sep 17 00:00:00 2001
From: Ritesh Raj Sarraf <rrs@debian.org>
Date: Sat, 3 Oct 2015 16:09:43 +0530
Subject: Add debdelta support, enable optionally via pbuilderrc or the command
 line.

Closes: #602711

Signed-off-by: Ritesh Raj Sarraf <rrs@debian.org>
---
 pbuilder-checkparams    | 4 ++++
 pbuilder-updatebuildenv | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/pbuilder-checkparams b/pbuilder-checkparams
index 07534ba..15f26cc 100755
--- a/pbuilder-checkparams
+++ b/pbuilder-checkparams
@@ -217,6 +217,10 @@ while [ -n "$1" ]; do
 	    ALLOWUNTRUSTED=yes;
 	    shift;
 	    ;;
+	--debdelta)
+	    DEBDELTA=yes;
+	    shift;
+	    ;;
 	--keyring)
 	    APTKEYRINGS[${#APTKEYRINGS[@]}]="$2";
 	    shift; shift;
diff --git a/pbuilder-updatebuildenv b/pbuilder-updatebuildenv
index 13dd043..713ad6e 100755
--- a/pbuilder-updatebuildenv
+++ b/pbuilder-updatebuildenv
@@ -41,6 +41,11 @@ log "I: Refreshing the base.tgz "
 log "I: upgrading packages"
 $CHROOTEXEC /usr/bin/apt-get -q update
 
+if [ "$DEBDELTA" = "yes" ]; then
+	log "I: Using debdelta-upgrade for available deltas"
+	$CHROOTEXEC /usr/bin/debdelta-upgrade
+fi
+
 case "$(readlink -e "$PBUILDERSATISFYDEPENDSCMD")" in
   *-aptitude)
     EXTRAPACKAGES="$EXTRAPACKAGES aptitude"
-- 
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