diskimage-builder/elements/yum/bin/install-packages
Ian Wienand e42066d685 Cleanup yum downloading
Using "yum --downloadonly" breaks the abstraction of
"install-packages" because it downloads to the yum cache.  It also
acts funny if the package is already there.

Add an argument to "-d" which is the directory to download to.  dnf
has "download" built in, and for the old case use yumdownloader which
acts about the same.  Ensure it is installed, since it comes in
yum-utils.

Also a slight cleanup of the getopt parsing so it's easier to have the
required argument for -d

Thus we can remove most of the stuff in 15-remove-grub.  The check for
centos6 and it's lack of grub2 is clarified.  All the stuff about
having to remove the package, purging the cache etc so yum gets the
right thing is no longer relevant.  The long section of commented out
code at the end is also removed for clarity.

I tested this with an F21, F22 & centos (6) build

Change-Id: Id1e430e7d050a0b99ac449e2ea435e06cda1c4e6
2015-07-20 09:08:06 +10:00

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#!/bin/bash
# Copyright 2012 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 [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
EXTRA_ARGS=
ACTION=install
MAP_ELEMENT=
# allow override for dnf, as shipped by default with >=F22
YUM=${YUM:-yum}
SCRIPTNAME=$(basename $0)
function show_options () {
echo "Usage: $SCRIPTNAME [package ...]"
echo
echo "Options:"
echo " -u -- update all packages"
echo " -d dir -- download the packages to directory"
echo " -e -- erase/remove packages"
echo " -m map -- use custom element package map (Example: -m nova)"
exit 0
}
while getopts "hud:em:" opt; do
case "$opt" in
u)
${YUM} -y update;
exit 0
;;
d)
ACTION="download"
DOWNLOAD_PATH=$OPTARG
;;
e)
ACTION="erase"
;;
m)
MAP_ELEMENT=$OPTARG
;;
h)
show_options
;;
*)
exit 1
;;
esac
done
shift $((OPTIND-1))
# Packages that aren't available in the distro but requested for installation
# can be ignored by adding them to the exclude list
BLACKLIST=$(cat /tmp/yum-blacklist 2>/dev/null || echo "")
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[*]} =~ $PKG_NAME ]]; then
WHITELIST="$WHITELIST $i"
else
echo "The package $i is not available and will not be installed"
fi
done
if [ -n "$WHITELIST" ]; then
if [ -f /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release ]; then
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
fi
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 "Not running install-packages $ACTION with empty packages list"
exit 0
fi
echo "Running install-packages ${ACTION}. Package list: $PKGS"
if [ "$ACTION" == "download" ]; then
mkdir -p $DOWNLOAD_PATH
if [ ${YUM} == "dnf" ]; then
dnf download --destdir=$DOWNLOAD_PATH $PKGS
else
# note; you don't want to use yum --download only here.
# Firstly that only puts things in the yum cache
# directory, and secondly it acts funny if old versions
# are already in the cache.
if [ ! -f /usr/bin/yumdownloader ]; then
yum install -y yum-utils
fi
yumdownloader --destdir=$DOWNLOAD_PATH $PKGS
fi
exit 0
fi
${YUM} -v -y $ACTION $EXTRA_ARGS $PKGS
# probably not the right place for this; but python-pip package on
# fedora/rh calls pip "pip-python" while the rest of the work
# expects it to be just called "pip"
for pkg in "$@"; do
if [ "$pkg" = "python-pip" ] ; then
alternatives --install /usr/bin/pip pip /usr/bin/pip-python 10
fi
done
fi