# functions-common - Common functions used by DevStack components

#

# The canonical copy of this file is maintained in the DevStack repo.

# All modifications should be made there and then sync'ed to other repos

# as required.

#

# This file is sorted alphabetically within the function groups.

#

# - Config Functions

# - Control Functions

# - Distro Functions

# - Git Functions

# - OpenStack Functions

# - Package Functions

# - Process Functions

# - Python Functions

# - Service Functions

# - System Functions

#

# The following variables are assumed to be defined by certain functions:

#

# - ``ENABLED_SERVICES``

# - ``ERROR_ON_CLONE``

# - ``FILES``

# - ``OFFLINE``

# - ``PIP_DOWNLOAD_CACHE``

# - ``PIP_USE_MIRRORS``

# - ``RECLONE``

# - ``REQUIREMENTS_DIR``

# - ``STACK_USER``

# - ``TRACK_DEPENDS``

# - ``UNDO_REQUIREMENTS``

# - ``http_proxy``, ``https_proxy``, ``no_proxy``

# Save trace setting

XTRACE=$(set +o | grep xtrace)

set +o xtrace

# Config Functions

# ================

# Append a new option in an ini file without replacing the old value

# iniadd config-file section option value1 value2 value3 ...

function iniadd {

local xtrace=$(set +o | grep xtrace)

set +o xtrace

local file=$1

local section=$2

local option=$3

shift 3

local values="$(iniget_multiline $file $section $option) $@"

iniset_multiline $file $section $option $values

$xtrace

}

# Comment an option in an INI file

# inicomment config-file section option

function inicomment {

local xtrace=$(set +o | grep xtrace)

set +o xtrace

local file=$1

local section=$2

local option=$3

sed -i -e "/^\[$section\]/,/^\[.*\]/ s|^\($option[ \t]*=.*$\)|#\1|" "$file"

$xtrace

}

# Get an option from an INI file

# iniget config-file section option

function iniget {

local xtrace=$(set +o | grep xtrace)

set +o xtrace

local file=$1

local section=$2

local option=$3

local line

line=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ p; }" "$file")

echo ${line#*=}

$xtrace

}

# Get a multiple line option from an INI file

# iniget_multiline config-file section option

function iniget_multiline {

local xtrace=$(set +o | grep xtrace)

set +o xtrace

local file=$1

local section=$2

local option=$3

local values

values=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { s/^$option[ \t]*=[ \t]*//gp; }" "$file")

echo ${values}

$xtrace

}

# Determinate is the given option present in the INI file

# ini_has_option config-file section option

function ini_has_option {

local xtrace=$(set +o | grep xtrace)

set +o xtrace

local file=$1

local section=$2

local option=$3

local line

line=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ p; }" "$file")

$xtrace

[ -n "$line" ]

}

# Set an option in an INI file

# iniset config-file section option value

function iniset {

local xtrace=$(set +o | grep xtrace)

set +o xtrace

local file=$1

local section=$2

local option=$3

local value=$4

[[ -z $section || -z $option ]] && return

if ! grep -q "^\[$section\]" "$file" 2>/dev/null; then

# Add section at the end

echo -e "\n[$section]" >>"$file"

fi

if ! ini_has_option "$file" "$section" "$option"; then

# Add it

sed -i -e "/^\[$section\]/ a\\

$option = $value

" "$file"

else

local sep=$(echo -ne "\x01")

# Replace it

sed -i -e '/^\['${section}'\]/,/^\[.*\]/ s'${sep}'^\('${option}'[ \t]*=[ \t]*\).*$'${sep}'\1'"${value}"${sep} "$file"

fi

$xtrace

}

# Set a multiple line option in an INI file

# iniset_multiline config-file section option value1 value2 valu3 ...

function iniset_multiline {

local xtrace=$(set +o | grep xtrace)

set +o xtrace

local file=$1

local section=$2

local option=$3

shift 3

local values

for v in $@; do

# The later sed command inserts each new value in the line next to

# the section identifier, which causes the values to be inserted in

# the reverse order. Do a reverse here to keep the original order.

values="$v ${values}"

done

if ! grep -q "^\[$section\]" "$file"; then

# Add section at the end

echo -e "\n[$section]" >>"$file"

else

# Remove old values

sed -i -e "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ d; }" "$file"

fi

# Add new ones

for v in $values; do

sed -i -e "/^\[$section\]/ a\\

$option = $v

" "$file"

done

$xtrace

}

# Uncomment an option in an INI file

# iniuncomment config-file section option

function iniuncomment {

local xtrace=$(set +o | grep xtrace)

set +o xtrace

local file=$1

local section=$2

local option=$3

sed -i -e "/^\[$section\]/,/^\[.*\]/ s|[^ \t]*#[ \t]*\($option[ \t]*=.*$\)|\1|" "$file"

$xtrace

}

# Normalize config values to True or False

# Accepts as False: 0 no No NO false False FALSE

# Accepts as True: 1 yes Yes YES true True TRUE

# VAR=$(trueorfalse default-value test-value)

function trueorfalse {

local xtrace=$(set +o | grep xtrace)

set +o xtrace

local default=$1

local testval=$2

[[ -z "$testval" ]] && { echo "$default"; return; }

[[ "0 no No NO false False FALSE" =~ "$testval" ]] && { echo "False"; return; }

[[ "1 yes Yes YES true True TRUE" =~ "$testval" ]] && { echo "True"; return; }

echo "$default"

$xtrace

}

# Control Functions

# =================

# Prints backtrace info

# filename:lineno:function

# backtrace level

function backtrace {

local level=$1

local deep=$((${#BASH_SOURCE[@]} - 1))

echo "[Call Trace]"

while [ $level -le $deep ]; do

echo "${BASH_SOURCE[$deep]}:${BASH_LINENO[$deep-1]}:${FUNCNAME[$deep-1]}"

deep=$((deep - 1))

done

}

# Prints line number and "message" then exits

# die $LINENO "message"

function die {

local exitcode=$?

set +o xtrace

local line=$1; shift

if [ $exitcode == 0 ]; then

exitcode=1

fi

backtrace 2

err $line "$*"

# Give buffers a second to flush

sleep 1

exit $exitcode

}

# Checks an environment variable is not set or has length 0 OR if the

# exit code is non-zero and prints "message" and exits

# NOTE: env-var is the variable name without a '$'

# die_if_not_set $LINENO env-var "message"

function die_if_not_set {

local exitcode=$?

FXTRACE=$(set +o | grep xtrace)

set +o xtrace

local line=$1; shift

local evar=$1; shift

if ! is_set $evar || [ $exitcode != 0 ]; then

die $line "$*"

fi

$FXTRACE

}

# Prints line number and "message" in error format

# err $LINENO "message"

function err {

local exitcode=$?

errXTRACE=$(set +o | grep xtrace)

set +o xtrace

local msg="[ERROR] ${BASH_SOURCE[2]}:$1 $2"

echo $msg 1>&2;

if [[ -n ${SCREEN_LOGDIR} ]]; then

echo $msg >> "${SCREEN_LOGDIR}/error.log"

fi

$errXTRACE

return $exitcode

}

# Checks an environment variable is not set or has length 0 OR if the

# exit code is non-zero and prints "message"

# NOTE: env-var is the variable name without a '$'

# err_if_not_set $LINENO env-var "message"

function err_if_not_set {

local exitcode=$?

errinsXTRACE=$(set +o | grep xtrace)

set +o xtrace

local line=$1; shift

local evar=$1; shift

if ! is_set $evar || [ $exitcode != 0 ]; then

err $line "$*"

fi

$errinsXTRACE

return $exitcode

}

# Exit after outputting a message about the distribution not being supported.

# exit_distro_not_supported [optional-string-telling-what-is-missing]

function exit_distro_not_supported {

if [[ -z "$DISTRO" ]]; then

GetDistro

fi

if [ $# -gt 0 ]; then

die $LINENO "Support for $DISTRO is incomplete: no support for $@"

else

die $LINENO "Support for $DISTRO is incomplete."

fi

}

# Test if the named environment variable is set and not zero length

# is_set env-var

function is_set {

local var=\$"$1"

eval "[ -n \"$var\" ]" # For ex.: sh -c "[ -n \"$var\" ]" would be better, but several exercises depends on this

}

# Prints line number and "message" in warning format

# warn $LINENO "message"

function warn {

local exitcode=$?

errXTRACE=$(set +o | grep xtrace)

set +o xtrace

local msg="[WARNING] ${BASH_SOURCE[2]}:$1 $2"

echo $msg 1>&2;

if [[ -n ${SCREEN_LOGDIR} ]]; then

echo $msg >> "${SCREEN_LOGDIR}/error.log"

fi

$errXTRACE

return $exitcode

}

# Distro Functions

# ================

# Determine OS Vendor, Release and Update

# Tested with OS/X, Ubuntu, RedHat, CentOS, Fedora

# Returns results in global variables:

# os_VENDOR - vendor name

# os_RELEASE - release

# os_UPDATE - update

# os_PACKAGE - package type

# os_CODENAME - vendor's codename for release

# GetOSVersion

function GetOSVersion {

# Figure out which vendor we are

if [[ -x "`which sw_vers 2>/dev/null`" ]]; then

# OS/X

os_VENDOR=`sw_vers -productName`

os_RELEASE=`sw_vers -productVersion`

os_UPDATE=${os_RELEASE##*.}

os_RELEASE=${os_RELEASE%.*}

os_PACKAGE=""

if [[ "$os_RELEASE" =~ "10.7" ]]; then

os_CODENAME="lion"

elif [[ "$os_RELEASE" =~ "10.6" ]]; then

os_CODENAME="snow leopard"

elif [[ "$os_RELEASE" =~ "10.5" ]]; then

os_CODENAME="leopard"

elif [[ "$os_RELEASE" =~ "10.4" ]]; then

os_CODENAME="tiger"

elif [[ "$os_RELEASE" =~ "10.3" ]]; then

os_CODENAME="panther"

else

os_CODENAME=""

fi

elif [[ -x $(which lsb_release 2>/dev/null) ]]; then

os_VENDOR=$(lsb_release -i -s)

os_RELEASE=$(lsb_release -r -s)

os_UPDATE=""

os_PACKAGE="rpm"

if [[ "Debian,Ubuntu,LinuxMint" =~ $os_VENDOR ]]; then

os_PACKAGE="deb"

elif [[ "SUSE LINUX" =~ $os_VENDOR ]]; then

lsb_release -d -s | grep -q openSUSE

if [[ $? -eq 0 ]]; then

os_VENDOR="openSUSE"

fi

elif [[ $os_VENDOR == "openSUSE project" ]]; then

os_VENDOR="openSUSE"

elif [[ $os_VENDOR =~ Red.*Hat ]]; then

os_VENDOR="Red Hat"

fi

os_CODENAME=$(lsb_release -c -s)

elif [[ -r /etc/redhat-release ]]; then

# Red Hat Enterprise Linux Server release 5.5 (Tikanga)

# Red Hat Enterprise Linux Server release 7.0 Beta (Maipo)

# CentOS release 5.5 (Final)

# CentOS Linux release 6.0 (Final)

# Fedora release 16 (Verne)

# XenServer release 6.2.0-70446c (xenenterprise)

os_CODENAME=""

for r in "Red Hat" CentOS Fedora XenServer; do

os_VENDOR=$r

if [[ -n "`grep \"$r\" /etc/redhat-release`" ]]; then

ver=`sed -e 's/^.* \([0-9].*\) (\(.*\)).*$/\1\|\2/' /etc/redhat-release`

os_CODENAME=${ver#*|}

os_RELEASE=${ver%|*}

os_UPDATE=${os_RELEASE##*.}

os_RELEASE=${os_RELEASE%.*}

break

fi

os_VENDOR=""

done

os_PACKAGE="rpm"

elif [[ -r /etc/SuSE-release ]]; then

for r in openSUSE "SUSE Linux"; do

if [[ "$r" = "SUSE Linux" ]]; then

os_VENDOR="SUSE LINUX"

else

os_VENDOR=$r

fi

if [[ -n "`grep \"$r\" /etc/SuSE-release`" ]]; then

os_CODENAME=`grep "CODENAME = " /etc/SuSE-release | sed 's:.* = ::g'`

os_RELEASE=`grep "VERSION = " /etc/SuSE-release | sed 's:.* = ::g'`

os_UPDATE=`grep "PATCHLEVEL = " /etc/SuSE-release | sed 's:.* = ::g'`

break

fi

os_VENDOR=""

done

os_PACKAGE="rpm"

# If lsb_release is not installed, we should be able to detect Debian OS

elif [[ -f /etc/debian_version ]] && [[ $(cat /proc/version) =~ "Debian" ]]; then

os_VENDOR="Debian"

os_PACKAGE="deb"

os_CODENAME=$(awk '/VERSION=/' /etc/os-release | sed 's/VERSION=//' | sed -r 's/\"|\(|\)//g' | awk '{print $2}')

os_RELEASE=$(awk '/VERSION_ID=/' /etc/os-release | sed 's/VERSION_ID=//' | sed 's/\"//g')

fi

export os_VENDOR os_RELEASE os_UPDATE os_PACKAGE os_CODENAME

}

# Translate the OS version values into common nomenclature

# Sets global ``DISTRO`` from the ``os_*`` values

function GetDistro {

GetOSVersion

if [[ "$os_VENDOR" =~ (Ubuntu) || "$os_VENDOR" =~ (Debian) ]]; then

# 'Everyone' refers to Ubuntu / Debian releases by the code name adjective

DISTRO=$os_CODENAME

elif [[ "$os_VENDOR" =~ (Fedora) ]]; then

# For Fedora, just use 'f' and the release

DISTRO="f$os_RELEASE"

elif [[ "$os_VENDOR" =~ (openSUSE) ]]; then

DISTRO="opensuse-$os_RELEASE"

elif [[ "$os_VENDOR" =~ (SUSE LINUX) ]]; then

# For SLE, also use the service pack

if [[ -z "$os_UPDATE" ]]; then

DISTRO="sle${os_RELEASE}"

else

DISTRO="sle${os_RELEASE}sp${os_UPDATE}"

fi

elif [[ "$os_VENDOR" =~ (Red Hat) || "$os_VENDOR" =~ (CentOS) ]]; then

# Drop the . release as we assume it's compatible

DISTRO="rhel${os_RELEASE::1}"

elif [[ "$os_VENDOR" =~ (XenServer) ]]; then

DISTRO="xs$os_RELEASE"

else

# Catch-all for now is Vendor + Release + Update

DISTRO="$os_VENDOR-$os_RELEASE.$os_UPDATE"

fi

export DISTRO

}

# Utility function for checking machine architecture

# is_arch arch-type

function is_arch {

ARCH_TYPE=$1

[[ "$(uname -m)" == "$ARCH_TYPE" ]]

}

# Determine if current distribution is a Fedora-based distribution

# (Fedora, RHEL, CentOS, etc).

# is_fedora

function is_fedora {

if [[ -z "$os_VENDOR" ]]; then

GetOSVersion

fi

[ "$os_VENDOR" = "Fedora" ] || [ "$os_VENDOR" = "Red Hat" ] || [ "$os_VENDOR" = "CentOS" ]

}

# Determine if current distribution is a SUSE-based distribution

# (openSUSE, SLE).

# is_suse

function is_suse {

if [[ -z "$os_VENDOR" ]]; then

GetOSVersion

fi

[ "$os_VENDOR" = "openSUSE" ] || [ "$os_VENDOR" = "SUSE LINUX" ]

}

# Determine if current distribution is an Ubuntu-based distribution

# It will also detect non-Ubuntu but Debian-based distros

# is_ubuntu

function is_ubuntu {

if [[ -z "$os_PACKAGE" ]]; then

GetOSVersion

fi

[ "$os_PACKAGE" = "deb" ]

}

# Git Functions

# =============

# Returns openstack release name for a given branch name

# ``get_release_name_from_branch branch-name``

function get_release_name_from_branch {

local branch=$1

if [[ $branch =~ "stable/" ]]; then

echo ${branch#*/}

else

echo "master"

fi

}

# git clone only if directory doesn't exist already. Since ``DEST`` might not

# be owned by the installation user, we create the directory and change the

# ownership to the proper user.

# Set global RECLONE=yes to simulate a clone when dest-dir exists

# Set global ERROR_ON_CLONE=True to abort execution with an error if the git repo

# does not exist (default is False, meaning the repo will be cloned).

# Uses global ``OFFLINE``

# git_clone remote dest-dir branch

function git_clone {

GIT_REMOTE=$1

GIT_DEST=$2

GIT_REF=$3

RECLONE=$(trueorfalse False $RECLONE)

local orig_dir=`pwd`

if [[ "$OFFLINE" = "True" ]]; then

echo "Running in offline mode, clones already exist"

# print out the results so we know what change was used in the logs

cd $GIT_DEST

git show --oneline | head -1

cd $orig_dir

return

fi

if echo $GIT_REF | egrep -q "^refs"; then

# If our branch name is a gerrit style refs/changes/...

if [[ ! -d $GIT_DEST ]]; then

[[ "$ERROR_ON_CLONE" = "True" ]] && \

die $LINENO "Cloning not allowed in this configuration"

git_timed clone $GIT_REMOTE $GIT_DEST

fi

cd $GIT_DEST

git_timed fetch $GIT_REMOTE $GIT_REF && git checkout FETCH_HEAD

else

# do a full clone only if the directory doesn't exist

if [[ ! -d $GIT_DEST ]]; then

[[ "$ERROR_ON_CLONE" = "True" ]] && \

die $LINENO "Cloning not allowed in this configuration"

git_timed clone $GIT_REMOTE $GIT_DEST

cd $GIT_DEST

# This checkout syntax works for both branches and tags

git checkout $GIT_REF

elif [[ "$RECLONE" = "True" ]]; then

# if it does exist then simulate what clone does if asked to RECLONE

cd $GIT_DEST

# set the url to pull from and fetch

git remote set-url origin $GIT_REMOTE

git_timed fetch origin

# remove the existing ignored files (like pyc) as they cause breakage

# (due to the py files having older timestamps than our pyc, so python

# thinks the pyc files are correct using them)

find $GIT_DEST -name '*.pyc' -delete

# handle GIT_REF accordingly to type (tag, branch)

if [[ -n "`git show-ref refs/tags/$GIT_REF`" ]]; then

git_update_tag $GIT_REF

elif [[ -n "`git show-ref refs/heads/$GIT_REF`" ]]; then

git_update_branch $GIT_REF

elif [[ -n "`git show-ref refs/remotes/origin/$GIT_REF`" ]]; then

git_update_remote_branch $GIT_REF

else

die $LINENO "$GIT_REF is neither branch nor tag"

fi

fi

fi

# print out the results so we know what change was used in the logs

cd $GIT_DEST

git show --oneline | head -1

cd $orig_dir

}

# git can sometimes get itself infinitely stuck with transient network

# errors or other issues with the remote end. This wraps git in a

# timeout/retry loop and is intended to watch over non-local git

# processes that might hang. GIT_TIMEOUT, if set, is passed directly

# to timeout(1); otherwise the default value of 0 maintains the status

# quo of waiting forever.

# usage: git_timed <git-command>

function git_timed {

local count=0

local timeout=0

if [[ -n "${GIT_TIMEOUT}" ]]; then

timeout=${GIT_TIMEOUT}

fi

until timeout -s SIGINT ${timeout} git "$@"; do

# 124 is timeout(1)'s special return code when it reached the

# timeout; otherwise assume fatal failure

if [[ $? -ne 124 ]]; then

die $LINENO "git call failed: [git $@]"

fi

count=$(($count + 1))

warn "timeout ${count} for git call: [git $@]"

if [ $count -eq 3 ]; then

die $LINENO "Maximum of 3 git retries reached"

fi

sleep 5

done

}

# git update using reference as a branch.

# git_update_branch ref

function git_update_branch {

GIT_BRANCH=$1

git checkout -f origin/$GIT_BRANCH

# a local branch might not exist

git branch -D $GIT_BRANCH || true

git checkout -b $GIT_BRANCH

}

# git update using reference as a branch.

# git_update_remote_branch ref

function git_update_remote_branch {

GIT_BRANCH=$1

git checkout -b $GIT_BRANCH -t origin/$GIT_BRANCH

}

# git update using reference as a tag. Be careful editing source at that repo

# as working copy will be in a detached mode

# git_update_tag ref

function git_update_tag {

GIT_TAG=$1

git tag -d $GIT_TAG

# fetching given tag only

git_timed fetch origin tag $GIT_TAG

git checkout -f $GIT_TAG

}

# OpenStack Functions

# ===================

# Get the default value for HOST_IP

# get_default_host_ip fixed_range floating_range host_ip_iface host_ip

function get_default_host_ip {

local fixed_range=$1

local floating_range=$2

local host_ip_iface=$3

local host_ip=$4

# Find the interface used for the default route

host_ip_iface=${host_ip_iface:-$(ip route | sed -n '/^default/{ s/.*dev \(\w\+\)\s\+.*/\1/; p; }' | head -1)}

# Search for an IP unless an explicit is set by ``HOST_IP`` environment variable

if [ -z "$host_ip" -o "$host_ip" == "dhcp" ]; then

host_ip=""

host_ips=`LC_ALL=C ip -f inet addr show ${host_ip_iface} | awk '/inet/ {split($2,parts,"/"); print parts[1]}'`

for IP in $host_ips; do

# Attempt to filter out IP addresses that are part of the fixed and

# floating range. Note that this method only works if the ``netaddr``

# python library is installed. If it is not installed, an error

# will be printed and the first IP from the interface will be used.

# If that is not correct set ``HOST_IP`` in ``localrc`` to the correct

# address.

if ! (address_in_net $IP $fixed_range || address_in_net $IP $floating_range); then

host_ip=$IP

break;

fi

done

fi

echo $host_ip

}

# Grab a numbered field from python prettytable output

# Fields are numbered starting with 1

# Reverse syntax is supported: -1 is the last field, -2 is second to last, etc.

# get_field field-number

function get_field {

while read data; do

if [ "$1" -lt 0 ]; then

field="(\$(NF$1))"

else

field="\$$(($1 + 1))"

fi

echo "$data" | awk -F'[ \t]*\\|[ \t]*' "{print $field}"

done

}

# Add a policy to a policy.json file

# Do nothing if the policy already exists

# ``policy_add policy_file policy_name policy_permissions``

function policy_add {

local policy_file=$1

local policy_name=$2

local policy_perm=$3

if grep -q ${policy_name} ${policy_file}; then

echo "Policy ${policy_name} already exists in ${policy_file}"

return

fi

# Add a terminating comma to policy lines without one

# Remove the closing '}' and all lines following to the end-of-file

local tmpfile=$(mktemp)

uniq ${policy_file} | sed -e '

s/]$/],/

/^[}]/,$d

' > ${tmpfile}

# Append policy and closing brace

echo " \"${policy_name}\": ${policy_perm}" >>${tmpfile}

echo "}" >>${tmpfile}

mv ${tmpfile} ${policy_file}

}

# Package Functions

# =================

# _get_package_dir

function _get_package_dir {

local pkg_dir

if is_ubuntu; then

pkg_dir=$FILES/apts

elif is_fedora; then

pkg_dir=$FILES/rpms

elif is_suse; then

pkg_dir=$FILES/rpms-suse

else

exit_distro_not_supported "list of packages"

fi

echo "$pkg_dir"

}

# Wrapper for ``apt-get`` to set cache and proxy environment variables

# Uses globals ``OFFLINE``, ``*_proxy``

# apt_get operation package [package ...]

function apt_get {

local xtrace=$(set +o | grep xtrace)

set +o xtrace

[[ "$OFFLINE" = "True" || -z "$@" ]] && return

local sudo="sudo"

[[ "$(id -u)" = "0" ]] && sudo="env"

$xtrace

$sudo DEBIAN_FRONTEND=noninteractive \

http_proxy=$http_proxy https_proxy=$https_proxy \

no_proxy=$no_proxy \

apt-get --option "Dpkg::Options::=--force-confold" --assume-yes "$@"

}

# get_packages() collects a list of package names of any type from the

# prerequisite files in ``files/{apts|rpms}``. The list is intended

# to be passed to a package installer such as apt or yum.

#

# Only packages required for the services in 1st argument will be

# included. Two bits of metadata are recognized in the prerequisite files:

#

# - ``# NOPRIME`` defers installation to be performed later in `stack.sh`

# - ``# dist:DISTRO`` or ``dist:DISTRO1,DISTRO2`` limits the selection

# of the package to the distros listed. The distro names are case insensitive.

function get_packages {

local xtrace=$(set +o | grep xtrace)

set +o xtrace

local services=$@

local package_dir=$(_get_package_dir)

local file_to_parse

local service

if [[ -z "$package_dir" ]]; then

echo "No package directory supplied"

return 1

fi

if [[ -z "$DISTRO" ]]; then

GetDistro

echo "Found Distro $DISTRO"

fi

for service in ${services//,/ }; do

# Allow individual services to specify dependencies

if [[ -e ${package_dir}/${service} ]]; then

file_to_parse="${file_to_parse} $service"

fi

# NOTE(sdague) n-api needs glance for now because that's where

# glance client is

if [[ $service == n-api ]]; then

if [[ ! $file_to_parse =~ nova ]]; then

file_to_parse="${file_to_parse} nova"

fi

if [[ ! $file_to_parse =~ glance ]]; then

file_to_parse="${file_to_parse} glance"

fi

elif [[ $service == c-* ]]; then

if [[ ! $file_to_parse =~ cinder ]]; then

file_to_parse="${file_to_parse} cinder"

fi

elif [[ $service == ceilometer-* ]]; then

if [[ ! $file_to_parse =~ ceilometer ]]; then

file_to_parse="${file_to_parse} ceilometer"

fi

elif [[ $service == s-* ]]; then

if [[ ! $file_to_parse =~ swift ]]; then

file_to_parse="${file_to_parse} swift"

fi

elif [[ $service == n-* ]]; then

if [[ ! $file_to_parse =~ nova ]]; then

file_to_parse="${file_to_parse} nova"

fi

elif [[ $service == g-* ]]; then

if [[ ! $file_to_parse =~ glance ]]; then

file_to_parse="${file_to_parse} glance"

fi

elif [[ $service == key* ]]; then

if [[ ! $file_to_parse =~ keystone ]]; then

file_to_parse="${file_to_parse} keystone"

fi

elif [[ $service == q-* ]]; then

if [[ ! $file_to_parse =~ neutron ]]; then

file_to_parse="${file_to_parse} neutron"

fi

elif [[ $service == ir-* ]]; then

if [[ ! $file_to_parse =~ ironic ]]; then

file_to_parse="${file_to_parse} ironic"

fi

fi

done

for file in ${file_to_parse}; do

local fname=${package_dir}/${file}

local OIFS line package distros distro

[[ -e $fname ]] || continue

OIFS=$IFS

IFS=$'\n'

for line in $(<${fname}); do

if [[ $line =~ "NOPRIME" ]]; then

continue

fi

# Assume we want this package

package=${line%#*}

inst_pkg=1

# Look for # dist:xxx in comment

if [[ $line =~ (.*)#.*dist:([^ ]*) ]]; then

# We are using BASH regexp matching feature.

package=${BASH_REMATCH[1]}

distros=${BASH_REMATCH[2]}

# In bash ${VAR,,} will lowecase VAR

# Look for a match in the distro list

if [[ ! ${distros,,} =~ ${DISTRO,,} ]]; then

# If no match then skip this package

inst_pkg=0

fi

fi

# Look for # testonly in comment

if [[ $line =~ (.*)#.*testonly.* ]]; then

package=${BASH_REMATCH[1]}

# Are we installing test packages? (test for the default value)

if [[ $INSTALL_TESTONLY_PACKAGES = "False" ]]; then

# If not installing test packages the skip this package

inst_pkg=0

fi

fi

if [[ $inst_pkg = 1 ]]; then

echo $package

fi

done

IFS=$OIFS

done

$xtrace

}

# Distro-agnostic package installer

# install_package package [package ...]

function update_package_repo {

if [[ "NO_UPDATE_REPOS" = "True" ]]; then

return 0

fi

if is_ubuntu; then

local xtrace=$(set +o | grep xtrace)

set +o xtrace

if [[ "$REPOS_UPDATED" != "True" || "$RETRY_UPDATE" = "True" ]]; then

# if there are transient errors pulling the updates, that's fine.

# It may be secondary repositories that we don't really care about.

apt_get update || /bin/true

REPOS_UPDATED=True

fi

$xtrace

fi

}

function real_install_package {

if is_ubuntu; then

apt_get install "$@"

elif is_fedora; then

yum_install "$@"

elif is_suse; then

zypper_install "$@"

else

exit_distro_not_supported "installing packages"

fi

}

# Distro-agnostic package installer

# install_package package [package ...]

function install_package {

update_package_repo

real_install_package $@ || RETRY_UPDATE=True update_package_repo && real_install_package $@

}

# Distro-agnostic function to tell if a package is installed

# is_package_installed package [package ...]

function is_package_installed {

if [[ -z "$@" ]]; then

return 1

fi

if [[ -z "$os_PACKAGE" ]]; then

GetOSVersion

fi

if [[ "$os_PACKAGE" = "deb" ]]; then

dpkg -s "$@" > /dev/null 2> /dev/null

elif [[ "$os_PACKAGE" = "rpm" ]]; then

rpm --quiet -q "$@"

else

exit_distro_not_supported "finding if a package is installed"

fi

}

# Distro-agnostic package uninstaller

# uninstall_package package [package ...]

function uninstall_package {

if is_ubuntu; then

apt_get purge "$@"

elif is_fedora; then

sudo yum remove -y "$@"

elif is_suse; then

sudo zypper rm "$@"

else

exit_distro_not_supported "uninstalling packages"

fi

}

# Wrapper for ``yum`` to set proxy environment variables

# Uses globals ``OFFLINE``, ``*_proxy``

# yum_install package [package ...]

function yum_install {

[[ "$OFFLINE" = "True" ]] && return

local sudo="sudo"

[[ "$(id -u)" = "0" ]] && sudo="env"

# The manual check for missing packages is because yum -y assumes

# missing packages are OK. See

# https://bugzilla.redhat.com/show_bug.cgi?id=965567

$sudo http_proxy=$http_proxy https_proxy=$https_proxy \

no_proxy=$no_proxy \

yum install -y "$@" 2>&1 | \

awk '

BEGIN { fail=0 }

/No package/ { fail=1 }

{ print }

END { exit fail }' || \

die $LINENO "Missing packages detected"

# also ensure we catch a yum failure

if [[ ${PIPESTATUS[0]} != 0 ]]; then

die $LINENO "Yum install failure"

fi

}

# zypper wrapper to set arguments correctly

# zypper_install package [package ...]

function zypper_install {

[[ "$OFFLINE" = "True" ]] && return

local sudo="sudo"

[[ "$(id -u)" = "0" ]] && sudo="env"

$sudo http_proxy=$http_proxy https_proxy=$https_proxy \

zypper --non-interactive install --auto-agree-with-licenses "$@"

}

# Process Functions

# =================

# _run_process() is designed to be backgrounded by run_process() to simulate a

# fork. It includes the dirty work of closing extra filehandles and preparing log

# files to produce the same logs as screen_it(). The log filename is derived

# from the service name and global-and-now-misnamed SCREEN_LOGDIR

# _run_process service "command-line"