diskimage-builder/diskimage_builder/elements/zypper/bin/install-packages
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 2013 SUSE Linux Products GmbH
#
# 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 [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
EXTRA_ARGS="--no-recommends"
MAP_ELEMENT=""
ACTION=install
SCRIPTNAME=$(basename $0)
function show_options () {
echo "Usage: $SCRIPTNAME [package ...]"
echo
echo "Options:"
echo " -u -- update all packages"
echo " -e -- erase/remove packages"
echo " -d -- download the packages only"
echo " -m -- use custom element package map (Example: -m nova)"
exit 0
}
function run_zypper() {
# TODO: Uncertain if this can ever block wanting input from user
zypper --non-interactive --gpg-auto-import-keys "$@"
}
TEMP=$(getopt -o hudem: -n $SCRIPTNAME -- "$@")
if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
eval set -- "$TEMP"
while true ; do
case "$1" in
-u) run_zypper dist-upgrade --no-recommends; exit 0;;
-e) ACTION="remove"; shift;;
-d) EXTRA_ARGS="--download-only"; shift;;
-m) MAP_ELEMENT=$2; shift 2;;
-h) show_options;;
--) shift; break ;;
*) echo "Error: unsupported option $1."; exit 1;;
esac
done
# Packages that aren't available in the distro but requested for installation
# can be ignored by adding them to the exclude list
BLACKLIST=('')
WHITELIST=('')
for i in "$@"
do
PKG_NAME=$i
if [ -n "$MAP_ELEMENT" ]; then
if ! PKG_NAME=$(pkg-map --element $MAP_ELEMENT $i); then
echo "bin/pkg-map error. $PKG_NAME"
exit 1
fi
fi
if [[ ! ${BLACKLIST[*]} =~ $PKG_NAME ]]; then
WHITELIST+="$i "
else
echo "The package $i is not available and will not be installed"
fi
done
if [ -n "$WHITELIST" ]; then
if [ -n "$MAP_ELEMENT" ]; then
if ! PKGS=$(pkg-map --element $MAP_ELEMENT $WHITELIST); then
echo "bin/pkg-map error. $PKGS"
exit 1
fi
else
PKGS=$(map-packages $WHITELIST)
fi
if [ -z "${PKGS}" ]; then
echo 'No packages need to be installed'
else
run_zypper $ACTION $EXTRA_ARGS $PKGS
fi
fi