Jenkins Build script for Drupal - multistep with changelogs

cd /var/www/

# there should be any changes on the server - but stash them just in case
git stash

# get the latest code from upstream - but don't change our version yet
git fetch

# check what branch we are on - in case this build also changes the test server to a new release
current_branch="$(git symbolic-ref HEAD 2>/dev/null)"
current_branch=${current_branch##refs/heads/}

# get the commit we are on and the one we will be on at the end
current_id=$(git rev-parse --short origin/develop)
new_id=$(git rev-parse --short origin/branch)

# email a nice log to myself (TODO - pull this back into jenkins)
git log --oneline --graph ${current_branch}..origin/$branch | mail -s "updating $(hostname) from $current_branch $current_id to $branch $new_id"   me@example.com

# update the code to the latest on the dev branch
git checkout $branch
git merge origin/branch

# now build
./build.sh ${intermediate}

#!/bin/bash -ex

export COLUMNS=80
cd $(dirname $0)/www

# drop and reload the database

drush -y sql-drop
type -P zcat &>/dev/null && {

# if we have zcat leave db dump compressed

zcat ../database_backups/www-latest.sql.gz | drush sqlc
} || {

# otherwise unzip

gunzip ../database_backups/www-latest.sql.gz
drush sqlc < ../database_backups/www-latest.sql

}

# get rid of production watchdog messages - so we can see any new ones easily

drush watchdog-delete all -y

# put site offline

drush -y vset maintenance_mode 1

# delete user files and replace with fresh ones from live - checking user permissions

# NB I use umask and groups to ensure the files remain writable by apache and CLI

if [ -d ../files_from_live/www ]
then
rm -Rf sites/default/files

cp -R ../files_from_live/www/sites/default/files sites/default

# cater for debian, ubuntu or mac

groups | grep www-data > /dev/null && find sites/default/files/ ! -group www-data -exec chgrp www-data {} \;
groups | grep apache > /dev/null && find sites/default/files/ ! -group apache -exec chgrp apache {} \;
groups | grep \_www > /dev/null && find sites/default/files/ ! -group \_www -exec chgrp \_www {} \;
fi

# put code version info online so we can easily check what is in the test site

echo "$(git describe)" > CODE-VERSION.TXT
echo "$(git log --oneline -n 1 | sed 's/ .\*//')" > CODE-HASH.TXT

# if this script is passed a intermediate version, check that out - upgrade and then checkout back to where we were

if ! [ -z "$1" ]
 then
branch_name="$(git symbolic-ref HEAD 2>/dev/null)"
  branch_name=${branch_name##refs/heads/}
git checkout $1
drush -y updb

#

git checkout $branch_name
fi

# take site fully offline

mv index.php bak-index.php
drush -y updb

# if the current user is a member of the www-data group we can make the files owned by this group

# as long as apache has umask 002 files should now be writeable by us and apache

groups | grep www-data > /dev/null && find sites/default/files/ ! -group www-data -exec chgrp www-data {} \;
groups | grep apache > /dev/null && find sites/default/files/ ! -group apache -exec chgrp apache {} \;
groups | grep \_www > /dev/null && find sites/default/files/ ! -group apache -exec chgrp \_www {} \;

drush cc all

# any tasks that have to be done at the end of each deploy go in this drush hook

drush helper-post-deploy

# on dev sites rewrite any user emails so we can't spam customers by mistake

drush helper-rewrite-emails
#set the admin password to one the devs know
drush upwd admin --password=secret

# put the site online again

drush -y vset maintenance_mode 0
mv bak-index.php index.php
drush cc all

# final permission reset just in case the last commands changed anything

find sites/default/files/ -user $USER -type d -exec chmod 775 {} \;
find sites/default/files/ -user $USER -type f -exec chmod 664 {} \;