diskimage-builder/elements/yum/bin/install-packages
Ian Wienand 36b59c001c Standarise tracing for scripts
There is a wide variety of tracing options through the various shell
scripts.  Some use "set -eux", others explicity set xtrace and others
do nothing.  There is a "-x" option to bin/disk-image-create but it
doesn't flow down to the many scripts it calls.

This adds a global integer variable set by disk-image-create
DIB_DEBUG_TRACE.  All scripts have a stanza added to detect this and
turn on tracing.  Any other tracing methods are rolled into this.  So
the standard header is

---
if [ "${DIB_DEBUG_TRACE:-0}" -gt 0 ]; then
    set -x
fi
set -eu
set -o pipefail
---

Multiple -x options can be specified to dib-create-image, which
increases the value of DIB_DEBUG_TRACE.  If script authors feel their
script should only trace at higher levels, they should modify the
"-gt" value.  If they feel it should trace by default, they can modify
the default value also.

Changes to pachset 16 : scripts which currently trace themselves by
default have retained this behaviour with DIB_DEBUG_TRACE defaulting
to "1".  This was done by running [1] on patch set 15.  See the thread
beginning at [2]

dib-lint is also updated to look for the variable being matched.

[1] https://gist.github.com/ianw/71bbda9e6acc74ccd0fd
[2] http://lists.openstack.org/pipermail/openstack-dev/2014-November/051575.html

Change-Id: I6c5a962260741dcf6f89da9a33b96372a719b7b0
2015-02-12 10:41:32 +11:00

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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 [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
EXTRA_ARGS=
ACTION=install
MAP_ELEMENT=
SCRIPTNAME=$(basename $0)
function show_options () {
echo "Usage: $SCRIPTNAME [package ...]"
echo
echo "Options:"
echo " -u -- update all packages"
echo " -d -- download the packages only"
echo " -e -- erase/remove packages"
echo " -m -- use custom element package map (Example: -m nova)"
exit 0
}
TEMP=$(getopt -o hudem: -n $SCRIPTNAME -- "$@")
if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
eval set -- "$TEMP"
while true ; do
case "$1" in
-u) yum -y update; exit 0;;
-d) EXTRA_ARGS="--downloadonly"; shift;;
-e) ACTION="erase"; shift;;
-m) MAP_ELEMENT=$2; shift 2;;
-h) show_options;;
--) shift; break ;;
*) echo "Error: unsupported option $1."; exit 1;;
esac
done
# Packages that aren't available in the distro but requested for installation
# can be ignored by adding them to the exclude list
BLACKLIST=$(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"
else
echo "Running install-packages ${ACTION}. Package list: $PKGS"
yum -y $ACTION $EXTRA_ARGS $PKGS
for pkg in "$@"; do
if [ "$pkg" = "python-pip" ] ; then
alternatives --install /usr/bin/pip pip /usr/bin/pip-python 10
fi
done
fi
fi