diskimage-builder/diskimage_builder/elements/debootstrap/root.d/08-debootstrap
Ian Wienand 97c01e48ed Move elements & lib relative to diskimage_builder package
Currently we have all our elements and library files in a top-level
directory and install them into
<root>/share/diskimage-builder/[elements|lib] (where root is either /
or the root of a virtualenv).

The problem with this is that editable/development installs (pip -e)
do *not* install data_files.  Thus we have no canonical location to
look for elements -- leading to the various odd things we do such as a
whole bunch of guessing at the top of disk-image-create and having a
special test-loader in tests/test_elements.py so we can run python
unit tests on those elements that have it.

data_files is really the wrong thing to use for what are essentially
assets of the program.  data_files install works well for things like
config-files, init.d files or dropping documentation files.

By moving the elements under the diskimage_builder package, we always
know where they are relative to where we import from.  In fact,
pkg_resources has an api for this which we wrap in the new
diskimage_builder/paths.py helper [1].

We use this helper to find the correct path in the couple of places we
need to find the base-elements dir, and for the paths to import the
library shell functions.

Elements such as svc-map and pkg-map include python unit-tests, which
we do not need tests/test_elements.py to special-case load any more.
They just get found automatically by the normal subunit loader.

I have a follow-on change (I69ca3d26fede0506a6353c077c69f735c8d84d28)
to move disk-image-create to a regular python entry-point.

Unfortunately, this has to move to work with setuptools.  You'd think
a symlink under diskimage_builder/[elements|lib] would work, but it
doesn't.

[1] this API handles stuff like getting files out of .zip archive
modules, which we don't do.  Essentially for us it's returning
__file__.

Change-Id: I5e3e3c97f385b1a4ff2031a161a55b231895df5b
2016-11-01 17:27:41 -07:00

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#!/bin/bash
#
# Copyright 2014 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
if [ ${DIB_DEBUG_TRACE:-1} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
if [ -f ${TARGET_ROOT}/.extra_settings ] ; then
. ${TARGET_ROOT}/.extra_settings
fi
[ -n "$DISTRO_NAME" ]
[ -n "$DIB_RELEASE" ]
[ -n "$DIB_DISTRIBUTION_MIRROR" ]
if [ $DISTRO_NAME = 'ubuntu' ] ; then
KERNEL='generic'
else
case $ARCH in
amd64) KERNEL='amd64' ;;
i386) KERNEL='686' ;;
arm7)
[ -n "$DIB_ARM_KERNEL" ]
KERNEL="$DIB_ARM_KERNEL"
;;
esac
fi
KERNEL_PACKAGE="linux-image-$KERNEL"
DIB_DEBIAN_COMPONENTS=${DIB_DEBIAN_COMPONENTS:-main}
DIB_DEBOOTSTRAP_EXTRA_ARGS=${DIB_DEBOOTSTRAP_EXTRA_ARGS:-}
DEBOOTSTRAP_TARBALL=$DIB_IMAGE_CACHE/debootstrap-${DISTRO_NAME}-${DIB_RELEASE}-${ARCH}-${KERNEL}.tar.gz
http_proxy=${http_proxy:-}
no_proxy=${no_proxy:-}
if [ -n "$DIB_OFFLINE" -o -n "${DIB_DEBIAN_USE_DEBOOTSTRAP_CACHE:-}" ] && [ -f $DEBOOTSTRAP_TARBALL ] ; then
echo $DEBOOTSTRAP_TARBALL found in cache. Using.
sudo tar -C $TARGET_ROOT --numeric-owner -xzf $DEBOOTSTRAP_TARBALL
else
KEYRING_OPT=
if [ -n "${DIB_APT_KEYRING:-${DIB_DEBIAN_KEYRING:-}}" ] ; then
KEYRING_OPT="--keyring=${DIB_APT_KEYRING:-${DIB_DEBIAN_KEYRING:-}}"
fi
# Have to --include=python because of dib-run-parts
# Have to --include=sudo for pre-install.d use of sudoers files
# Have to --include=busybox because initramfs needs it
sudo sh -c "http_proxy=$http_proxy no_proxy=$no_proxy debootstrap --verbose \
--variant=minbase \
--include=python,sudo,busybox,$KERNEL_PACKAGE \
--components=${DIB_DEBIAN_COMPONENTS} \
--arch=${ARCH} \
$KEYRING_OPT \
$DIB_DEBOOTSTRAP_EXTRA_ARGS \
$DIB_RELEASE \
$TARGET_ROOT \
$DIB_DISTRIBUTION_MIRROR \
${DIB_DEBIAN_DEBOOTSTRAP_SCRIPT:-}"
# debootstrap creates sometimes a not-usable
# /etc/apt/sources.list: DIB wants to set up its own anyway
# and the old has to go.
sudo rm -fr ${TARGET_ROOT}/etc/apt/sources.list \
${TARGET_ROOT}/etc/apt/sources.list.d
echo Caching debootstrap result in $DEBOOTSTRAP_TARBALL
if [ "${DIB_DEBOOTSTRAP_CACHE:-0}" != "0" ]; then
sudo tar --numeric-owner -C $TARGET_ROOT -zcf $DEBOOTSTRAP_TARBALL --exclude='./tmp/*' .
fi
fi
sudo rm -f ${TARGET_ROOT}/.extra_settings