From 9dd178a0e5bf0a3d5f544aef83a840b02d6b1aa6 Mon Sep 17 00:00:00 2001
From: Balint Reczey <balint.reczey@canonical.com>
Date: Thu, 28 Sep 2017 09:38:23 -0400
Subject: [PATCH] Drop man pages and most of the documentation from minimized
 images

/usr/share/doc/*/copyright and changelog.Debian.gz files are still kept
---
 live-build/auto/build | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/live-build/auto/build b/live-build/auto/build
index 6307d283..a1a6b81f 100755
--- a/live-build/auto/build
+++ b/live-build/auto/build
@@ -37,6 +37,27 @@ Expire-Date: 0
 		rm -f chroot/etc/localtime chroot/etc/timezone
 	fi
 
+	if [ "$SUBPROJECT" = minimize ]; then
+		# set up dpkg filters to skip installing docs on minimized system
+		mkdir -p chroot/etc/dpkg/dpkg.cfg.d
+		cat > chroot/etc/dpkg/dpkg.cfg.d/excludes <<EOF
+# Drop all man pages
+path-exclude=/usr/share/man/*
+
+# Drop all documentation ...
+path-exclude=/usr/share/doc/*
+
+# ... except copyright files ...
+path-include=/usr/share/doc/*/copyright
+
+# ... and Debian changelogs
+path-include=/usr/share/doc/*/changelog.Debian.*
+EOF
+
+		# Remove docs installed by bootstrap
+		Chroot chroot dpkg-query -f '${binary:Package}\n' -W | Chroot chroot xargs apt-get install --reinstall
+        fi
+
 	Chroot chroot "dpkg-divert --quiet --add \
 		--divert /usr/sbin/update-initramfs.REAL --rename \
 		/usr/sbin/update-initramfs"