Add a buildd subproject.

debian/changelog

@@ -1,3 +1,9 @@
+livecd-rootfs (2.525+lp1) UNRELEASED; urgency=medium
+
+  * Add a buildd subproject.
+
+ -- Colin Watson <cjwatson@ubuntu.com>  Thu, 26 Apr 2018 14:22:27 +0100
+
 livecd-rootfs (2.525) bionic; urgency=medium
 
   * Don't fail to build CPC images if /lib/modules already exists in the

live-build/auto/build

@@ -460,6 +460,15 @@ if [ -e "binary/$INITFS/filesystem.dir" ]; then
 	chmod 644 "$PREFIX.rootfs.tar.gz"
 elif [ -e binary-tar.tar.gz ]; then
 	cp -a binary-tar.tar.gz "$PREFIX.rootfs.tar.gz"
+elif [ "$SUBPROJECT" = buildd ]; then
+	# A few things (launchpad-buildd, sbuild-launchpad-chroot) rely on
+	# the top-level directory being "chroot-autobuild", so we have to do
+	# this ourselves.
+	# gzip was chosen for fastest decompression speed: it decompresses
+	# buildd chroots about twice as fast as xz and about five times as
+	# fast as bzip2.
+	tar --transform 's,^binary,chroot-autobuild,' \
+		-czf "$PREFIX.rootfs.tar.gz" binary
 fi
 
 if [ "$PROJECT:${SUBPROJECT:-}" = "ubuntu-core:system-image" ]; then

live-build/auto/config

@@ -668,6 +668,56 @@ case $PROJECT in
 		;;
 esac
 
+case $SUBPROJECT in
+	buildd)
+		OPTS="${OPTS:+$OPTS }--archive-areas main"
+		COMPONENTS='main restricted universe multiverse'
+		KERNEL_FLAVOURS=none
+		OPTS="${OPTS:+$OPTS }--apt-recommends false"
+		OPTS="${OPTS:+$OPTS }--apt-secure false"
+		OPTS="${OPTS:+$OPTS }--linux-packages=none --initramfs=none"
+		INITRAMFS_COMPRESSION=none
+		OPTS="${OPTS:+$OPTS }--mirror-binary ${MIRROR}"
+		# XXX cjwatson 2018-04-27: We need to work out how to make
+		# this conditional so that we can do things like building
+		# buildd chroots with -updates.  This probably involves
+		# either extending the PROPOSED hack or fixing the strange
+		# way that SUITE is in fact a series; in either case it's
+		# likely to involve work both here and in launchpad-buildd.
+		OPTS="${OPTS:+$OPTS }--security false --volatile false"
+		OPTS="${OPTS:+$OPTS }--binary-images none"
+
+		add_package install adduser
+		add_package install policyrcd-script-zg2
+		add_package install pkgbinarymangler
+		add_package install ca-certificates
+		add_package install gpg
+		add_package install gpg-agent
+		case $SUITE in
+			precise|trusty|xenial)
+				# no longer needed in >= artful
+				add_package install pkg-create-dbgsym
+				# no longer needed in >= bionic
+				add_package install apt-transport-https
+				# no longer needed in >= CC
+				add_package install tzdata
+				;;
+			artful)
+				# no longer needed in >= bionic
+				add_package install apt-transport-https
+				# no longer needed in >= CC
+				add_package install tzdata
+				;;
+			bionic)
+				# no longer needed in >= CC
+				add_package install tzdata
+				;;
+		esac
+		add_package install fakeroot
+		add_package install build-essential
+		;;
+esac
+
 # we'll expand the base seed given here according to the STRUCTURE file, and
 # then look in all of the seeds found to see which snaps are seeded
 case $PROJECT:${SUBPROJECT:-} in
@@ -977,6 +1027,12 @@ EOF
 		;;
 esac
 
+case $SUBPROJECT in
+	buildd)
+		cp -af /usr/share/livecd-rootfs/live-build/buildd/* config/
+		;;
+esac
+
 if [ "$EXTRA_PPAS" ]; then
 	rm -f config/archives/extra-ppas.list.chroot \
 	      config/archives/extra-ppas.pref.chroot \

live-build/buildd/hooks/apt.chroot

@@ -0,0 +1,14 @@
+#! /bin/sh
+set -e
+
+# Configure APT.
+cat >/etc/apt/apt.conf.d/99buildd <<EOF
+DPkg::Options {"--force-unsafe-io";};
+DPkg::Use-Pty "false";
+EOF
+
+cat >/etc/apt/preferences.d/backports <<EOF
+Package: *
+Pin: release a=*-backports
+Pin-Priority: 500
+EOF

live-build/buildd/hooks/fstab.chroot

@@ -0,0 +1,5 @@
+#! /bin/sh
+set -e
+
+# Install a dummy fstab.
+echo /dev/root / ext2 noatime,errors=remount-ro 0 1 >/etc/fstab

live-build/buildd/hooks/kernel-img.chroot

@@ -0,0 +1,5 @@
+#! /bin/sh
+set -e
+
+# At one point, kernel builds needed this.
+echo do_initrd = Yes >>/etc/kernel-img.conf

live-build/buildd/hooks/pkgbinarymangler.chroot

@@ -0,0 +1,10 @@
+#! /bin/sh
+set -e
+
+# Configure pkgbinarymangler.
+sed -i /^enable/s/false/true/ \
+	/etc/pkgbinarymangler/maintainermangler.conf \
+	/etc/pkgbinarymangler/striptranslations.conf || true
+sed -i /^invalid_current/s/ignore/fail/ \
+	/etc/pkgbinarymangler/maintainermangler.conf \
+	/etc/pkgbinarymangler/striptranslations.conf || true

live-build/buildd/hooks/policy-rc.d.chroot

@@ -0,0 +1,20 @@
+#! /bin/sh
+set -e
+
+# Configure policy-rc.d.
+cat >/usr/local/sbin/policy-rc.d <<'EOF'
+#!/bin/sh
+
+# policy-rc.d script for chroots.
+# Copyright (c) 2007 Peter Palfrader <peter@palfrader.org>
+# License: <weasel> MIT, if you want one.
+
+while true; do
+  case "$1" in
+    -*)         shift ;;
+    makedev)    exit 0;;
+    *) echo "Not running services in chroot."; exit 101 ;;
+  esac
+done
+EOF
+chmod 755 /usr/local/sbin/policy-rc.d

live-build/buildd/hooks/user.chroot

@@ -0,0 +1,9 @@
+#! /bin/sh
+set -e
+
+# Create the buildd user and group.
+addgroup --gid 2501 buildd
+adduser --system --disabled-password --gecos 'Build Daemon user' \
+	--ingroup buildd --uid 2001 --shell /bin/bash buildd
+mkdir -p /build/buildd
+chown buildd:buildd /build/buildd

live-build/buildd/includes.chroot/etc/hostname

@@ -0,0 +1 @@
+INVALID

live-build/buildd/includes.chroot/etc/hosts

@@ -0,0 +1,9 @@
+127.0.0.1	localhost.localdomain	localhost
+
+# The following lines are desirable for IPv6 capable hosts
+::1     ip6-localhost ip6-loopback
+fe00::0 ip6-localnet
+ff00::0 ip6-mcastprefix
+ff02::1 ip6-allnodes
+ff02::2 ip6-allrouters
+ff02::3 ip6-allhosts

live-build/buildd/preseed/debconf.preseed

@@ -0,0 +1,2 @@
+# We never want debconf interaction.
+debconf debconf/frontend select Noninteractive

live-build/buildd/preseed/man-db.preseed

@@ -0,0 +1,3 @@
+# Avoid unnecessary manual page database builds (see
+# https://bugs.debian.org/554914).
+man-db man-db/auto-update boolean false

live-build/buildd/preseed/sun-java6.preseed

@@ -0,0 +1,3 @@
+# Pre-accept interactive EULA prompts.
+sun-java6-bin shared/accepted-sun-dlj-v1-1 boolean true
+sun-java6-jre shared/accepted-sun-dlj-v1-1 boolean true