Forrest Deployer Shell

deploy.sh

#!/bin/bash

APP_DIR=/var/local/apps/app
RAILS_ENV=production

function step
{
  if [ "$step_count" = "" ]; then
    step_count=0
  fi
  step_count=`expr $step_count + 1`
  last_step="#$step_count $1"
  echo ""
  echo $last_step
}

function step_done
{
  echo "$last_step [DONE]"
}

function run
{
  echo "$ $1"
  $1

  if [ $? -ne 0 ]; then
    echo "$last_step [FAIL]"
    exit -1;
  fi
}

function usage
{
  echo "usage: script/deploy -t tag [-h | --skip \"db gems assets\"]"
}

tag=""
skip=""
while [ "$1" != "" ]; do
  case $1 in
    -t | --tag  )           shift
                            tag=$1
                            ;;
    -s | --skip )           shift
                            skip=$1
                            ;;
    -h | --help )           usage
                            exit
                            ;;
    * )                     usage
                            exit 1
  esac
  shift
done

if [ "$tag" = "" ]; then
  usage
  exit 1
fi

skip_db=false
if [[ $skip =~ db ]]; then
  skip_db=true
fi
skip_gems=false
if [[ $skip =~ gems ]]; then
  skip_gems=true
fi
skip_assets=false
if [[ $skip =~ assets ]]; then
  skip_assets=true
fi

## Main

step "Deploying Application tag $tag $RAILS_ENV"
run "cd $APP_DIR"
run "export RAILS_ENV=$RAILS_ENV"
step_done

if ! $skip_db ; then
  step "Backup... "
  run "script/backup $tag"
  step_done
fi

step "Updating code version $tag"
run "git fetch origin master --tags"
run "git reset --hard $tag"
step_done

step "Enabling maintenance page"
run "touch public/maintenance.html"
step_done

step "Stopping services..."
run "sudo service app-web stop"
run "sudo service app-worker stop"
run "sudo service app-memcached stop"
step_done

if ! $skip_gems ; then
  step "Installing gems"
  run "bundle install --deployment --without development test"
  step_done
fi

if ! $skip_db ; then
  step "Migrating database"
  run "bundle exec rake db:migrate"
  step_done
fi

if ! $skip_assets ; then
  step "Pre-compiling Assets"
  run "bundle exec rake assets:clean assets:precompile"
  step_done
fi

step "Starting services..."
run "sudo service app-memcached start"
run "sudo service app-worker start"
run "sudo service app-web start"
step_done

step "Disabling maintenance page"
run "rm public/maintenance.html"
step_done

echo "Have fun! [D O N E]"

forrest.sh

#!/bin/bash
#
# Executa o script/deploy no servidor do http://minhaapp.com
# $ script/forrest -t tag1
#
# Skip options:
# $ script/forrest -t tag1 --skip db  # nao executa backup e rake db:migrate
# $ scritp/forrest -t tag1 --skip gems # nao executa bundle install ...
# $ scritp/forrest -t tag1 --skip assets # nao executa rake assets precompile ...
#
# Voce pode passar mais de um skip, usando a "trick":
# $ script/forrest -t tag1 --skip db-gems-assets # ou --skip gems-assets ... etc.

echo "Deploying on Application Server"
echo "$ ssh user@minhaapp.com.br \"/var/local/apps/app/script/deploy $@\""

ssh user@minhaapp.com.br "/var/local/apps/app/script/deploy $@"