92 lines
3.0 KiB
Plaintext
92 lines
3.0 KiB
Plaintext
# functions - Common functions used by DevStack components
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# apt-get wrapper to set arguments correctly
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# apt_get package [package ...]
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function apt_get() {
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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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$sudo DEBIAN_FRONTEND=noninteractive \
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http_proxy=$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 $2
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fi
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}
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# git clone only if directory doesn't exist already. Since ``DEST`` might not
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# be owned by the installation user, we create the directory and change the
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# ownership to the proper user.
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# Set global RECLONE=yes to simulate a clone when dest-dir exists
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# git_clone remote dest-dir branch
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function git_clone {
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[[ "$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 $GIT_BRANCH
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fi
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fi
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}
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# pip install wrapper to set cache and proxy environment variables
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# pip_install package [package ...]
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function pip_install {
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[[ "$OFFLINE" = "True" ]] && return
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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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pip install --use-mirrors $@
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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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