5218d451dc
Highlights: * Add files/rpms/* * get_packages() only loads deps for services that are enabled 11Apr2012 * change mod_wsgi cwd to $HORIZON_DIR * fix horizon apache log file name and location Note: This superceeds https://review.openstack.org/4364 Change-Id: I95486584561e4418907a6a4feb0ffbe4f4ea1843
366 lines
10 KiB
Plaintext
366 lines
10 KiB
Plaintext
# functions - Common functions used by DevStack components
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#
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# ENABLED_SERVICES is used by is_service_enabled()
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# Save trace setting
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XTRACE=$(set +o | grep xtrace)
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set +o xtrace
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# apt-get wrapper to set arguments correctly
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# apt_get operation package [package ...]
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function apt_get() {
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[[ "$OFFLINE" = "True" || -z "$@" ]] && return
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local sudo="sudo"
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[[ "$(id -u)" = "0" ]] && sudo="env"
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$sudo DEBIAN_FRONTEND=noninteractive \
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http_proxy=$http_proxy https_proxy=$https_proxy \
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apt-get --option "Dpkg::Options::=--force-confold" --assume-yes "$@"
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}
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# Gracefully cp only if source file/dir exists
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# cp_it source destination
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function cp_it {
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if [ -e $1 ] || [ -d $1 ]; then
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cp -pRL $1 $2
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fi
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}
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# Prints "message" and exits
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# die "message"
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function die() {
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local exitcode=$?
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set +o xtrace
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echo $@
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exit $exitcode
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}
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# Checks an environment variable is not set or has length 0 OR if the
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# exit code is non-zero and prints "message" and exits
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# NOTE: env-var is the variable name without a '$'
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# die_if_not_set env-var "message"
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function die_if_not_set() {
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(
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local exitcode=$?
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set +o xtrace
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local evar=$1; shift
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if ! is_set $evar || [ $exitcode != 0 ]; then
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set +o xtrace
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echo $@
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exit -1
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fi
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)
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}
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# Grab a numbered field from python prettytable output
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# Fields are numbered starting with 1
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# Reverse syntax is supported: -1 is the last field, -2 is second to last, etc.
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# get_field field-number
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function get_field() {
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while read data; do
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if [ "$1" -lt 0 ]; then
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field="(\$(NF$1))"
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else
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field="\$$(($1 + 1))"
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fi
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echo "$data" | awk -F'[ \t]*\\|[ \t]*' "{print $field}"
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done
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}
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# Determine OS Vendor, Release and Update
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# Tested with OS/X, Ubuntu, RedHat, CentOS, Fedora
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# Returns results in global variables:
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# os_VENDOR - vendor name
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# os_RELEASE - release
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# os_UPDATE - update
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# os_PACKAGE - package type
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# os_CODENAME - vendor's codename for release
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# GetOSVersion
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GetOSVersion() {
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# Figure out which vendor we are
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if [[ -n "`which sw_vers 2>/dev/null`" ]]; then
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# OS/X
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os_VENDOR=`sw_vers -productName`
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os_RELEASE=`sw_vers -productVersion`
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os_UPDATE=${os_RELEASE##*.}
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os_RELEASE=${os_RELEASE%.*}
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os_PACKAGE=""
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if [[ "$os_RELEASE" =~ "10.7" ]]; then
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os_CODENAME="lion"
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elif [[ "$os_RELEASE" =~ "10.6" ]]; then
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os_CODENAME="snow leopard"
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elif [[ "$os_RELEASE" =~ "10.5" ]]; then
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os_CODENAME="leopard"
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elif [[ "$os_RELEASE" =~ "10.4" ]]; then
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os_CODENAME="tiger"
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elif [[ "$os_RELEASE" =~ "10.3" ]]; then
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os_CODENAME="panther"
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else
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os_CODENAME=""
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fi
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elif [[ -x $(which lsb_release 2>/dev/null) ]]; then
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os_VENDOR=$(lsb_release -i -s)
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os_RELEASE=$(lsb_release -r -s)
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os_UPDATE=""
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if [[ "Debian,Ubuntu" =~ $os_VENDOR ]]; then
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os_PACKAGE="deb"
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else
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os_PACKAGE="rpm"
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fi
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os_CODENAME=$(lsb_release -c -s)
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elif [[ -r /etc/redhat-release ]]; then
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# Red Hat Enterprise Linux Server release 5.5 (Tikanga)
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# CentOS release 5.5 (Final)
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# CentOS Linux release 6.0 (Final)
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# Fedora release 16 (Verne)
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os_CODENAME=""
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for r in "Red Hat" CentOS Fedora; do
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os_VENDOR=$r
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if [[ -n "`grep \"$r\" /etc/redhat-release`" ]]; then
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ver=`sed -e 's/^.* \(.*\) (\(.*\)).*$/\1\|\2/' /etc/redhat-release`
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os_CODENAME=${ver#*|}
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os_RELEASE=${ver%|*}
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os_UPDATE=${os_RELEASE##*.}
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os_RELEASE=${os_RELEASE%.*}
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break
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fi
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os_VENDOR=""
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done
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os_PACKAGE="rpm"
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fi
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export os_VENDOR os_RELEASE os_UPDATE os_PACKAGE os_CODENAME
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}
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# git clone only if directory doesn't exist already. Since ``DEST`` might not
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# be owned by the installation user, we create the directory and change the
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# ownership to the proper user.
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# Set global RECLONE=yes to simulate a clone when dest-dir exists
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# git_clone remote dest-dir branch
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function git_clone {
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[[ "$OFFLINE" = "True" ]] && return
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GIT_REMOTE=$1
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GIT_DEST=$2
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GIT_BRANCH=$3
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if echo $GIT_BRANCH | egrep -q "^refs"; then
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# If our branch name is a gerrit style refs/changes/...
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if [[ ! -d $GIT_DEST ]]; then
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git clone $GIT_REMOTE $GIT_DEST
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fi
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cd $GIT_DEST
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git fetch $GIT_REMOTE $GIT_BRANCH && git checkout FETCH_HEAD
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else
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# do a full clone only if the directory doesn't exist
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if [[ ! -d $GIT_DEST ]]; then
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git clone $GIT_REMOTE $GIT_DEST
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cd $GIT_DEST
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# This checkout syntax works for both branches and tags
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git checkout $GIT_BRANCH
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elif [[ "$RECLONE" == "yes" ]]; then
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# if it does exist then simulate what clone does if asked to RECLONE
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cd $GIT_DEST
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# set the url to pull from and fetch
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git remote set-url origin $GIT_REMOTE
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git fetch origin
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# remove the existing ignored files (like pyc) as they cause breakage
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# (due to the py files having older timestamps than our pyc, so python
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# thinks the pyc files are correct using them)
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find $GIT_DEST -name '*.pyc' -delete
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git checkout -f origin/$GIT_BRANCH
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# a local branch might not exist
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git branch -D $GIT_BRANCH || true
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git checkout -b $GIT_BRANCH
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fi
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fi
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}
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# Comment an option in an INI file
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# iniset config-file section option
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function inicomment() {
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local file=$1
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local section=$2
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local option=$3
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sed -i -e "/^\[$section\]/,/^\[.*\]/ s|^\($option[ \t]*=.*$\)|#\1|" $file
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}
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# Get an option from an INI file
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# iniget config-file section option
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function iniget() {
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local file=$1
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local section=$2
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local option=$3
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local line
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line=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ p; }" $file)
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echo ${line#*=}
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}
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# Set an option in an INI file
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# iniset config-file section option value
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function iniset() {
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local file=$1
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local section=$2
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local option=$3
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local value=$4
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if ! grep -q "^\[$section\]" $file; then
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# Add section at the end
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echo -e "\n[$section]" >>$file
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fi
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if [[ -z "$(iniget $file $section $option)" ]]; then
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# Add it
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sed -i -e "/^\[$section\]/ a\\
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$option = $value
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" $file
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else
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# Replace it
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sed -i -e "/^\[$section\]/,/^\[.*\]/ s|^\($option[ \t]*=[ \t]*\).*$|\1$value|" $file
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fi
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}
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# is_service_enabled() checks if the service(s) specified as arguments are
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# enabled by the user in **ENABLED_SERVICES**.
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#
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# If there are multiple services specified as arguments the test performs a
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# boolean OR or if any of the services specified on the command line
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# return true.
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#
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# There is a special cases for some 'catch-all' services::
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# **nova** returns true if any service enabled start with **n-**
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# **glance** returns true if any service enabled start with **g-**
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# **quantum** returns true if any service enabled start with **q-**
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function is_service_enabled() {
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services=$@
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for service in ${services}; do
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[[ ,${ENABLED_SERVICES}, =~ ,${service}, ]] && return 0
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[[ ${service} == "nova" && ${ENABLED_SERVICES} =~ "n-" ]] && return 0
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[[ ${service} == "glance" && ${ENABLED_SERVICES} =~ "g-" ]] && return 0
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[[ ${service} == "quantum" && ${ENABLED_SERVICES} =~ "q-" ]] && return 0
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done
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return 1
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}
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# Distro-agnostic package installer
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# install_package package [package ...]
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function install_package() {
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if [[ -z "$os_PACKAGE" ]]; then
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GetOSVersion
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fi
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if [[ "$os_PACKAGE" = "deb" ]]; then
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apt_get install "$@"
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else
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yum_install "$@"
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fi
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}
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# Test if the named environment variable is set and not zero length
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# is_set env-var
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function is_set() {
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local var=\$"$1"
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if eval "[ -z $var ]"; then
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return 1
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fi
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return 0
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}
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# pip install wrapper to set cache and proxy environment variables
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# pip_install package [package ...]
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function pip_install {
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[[ "$OFFLINE" = "True" || -z "$@" ]] && return
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if [[ -z "$os_PACKAGE" ]]; then
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GetOSVersion
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fi
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if [[ "$os_PACKAGE" = "deb" ]]; then
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CMD_PIP=/usr/bin/pip
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else
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CMD_PIP=/usr/bin/pip-python
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fi
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sudo PIP_DOWNLOAD_CACHE=/var/cache/pip \
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HTTP_PROXY=$http_proxy \
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HTTPS_PROXY=$https_proxy \
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$CMD_PIP install --use-mirrors $@
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}
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# Service wrapper to restart services
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# restart_service service-name
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function restart_service() {
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if [[ -z "$os_PACKAGE" ]]; then
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GetOSVersion
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fi
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if [[ "$os_PACKAGE" = "deb" ]]; then
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sudo /usr/sbin/service $1 restart
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else
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sudo /sbin/service $1 restart
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fi
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}
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# Service wrapper to start services
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# start_service service-name
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function start_service() {
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if [[ -z "$os_PACKAGE" ]]; then
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GetOSVersion
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fi
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if [[ "$os_PACKAGE" = "deb" ]]; then
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sudo /usr/sbin/service $1 start
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else
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sudo /sbin/service $1 start
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fi
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}
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# Service wrapper to stop services
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# stop_service service-name
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function stop_service() {
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if [[ -z "$os_PACKAGE" ]]; then
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GetOSVersion
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fi
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if [[ "$os_PACKAGE" = "deb" ]]; then
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sudo /usr/sbin/service $1 stop
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else
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sudo /sbin/service $1 stop
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fi
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}
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# Normalize config values to True or False
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# VAR=`trueorfalse default-value test-value`
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function trueorfalse() {
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local default=$1
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local testval=$2
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[[ -z "$testval" ]] && { echo "$default"; return; }
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[[ "0 no false False FALSE" =~ "$testval" ]] && { echo "False"; return; }
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[[ "1 yes true True TRUE" =~ "$testval" ]] && { echo "True"; return; }
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echo "$default"
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}
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# yum wrapper to set arguments correctly
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# yum_install package [package ...]
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function yum_install() {
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[[ "$OFFLINE" = "True" ]] && return
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local sudo="sudo"
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[[ "$(id -u)" = "0" ]] && sudo="env"
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$sudo http_proxy=$http_proxy https_proxy=$https_proxy \
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yum install -y "$@"
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}
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# Restore xtrace
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$XTRACE
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