run.sh

#!/bin/sh

set -e

###########################################################
#DEFINE ALL GLOBAL INDEPENDENT HELPER FUNCTIONS
###########################################################

l() {
  LEVEL="INFO"
  if [ -n "$2" ]; then
    LEVEL="$2"
  fi
  LEVEL="$(echo "$LEVEL" | tr [a-z] [A-Z])"
  echo "[$(date +"%Y-%m-%d %H:%M:%S")] [$LEVEL] $1"
}

task_dispatch_with_arguments() {
  if [ "$#" = 1 ] && [ "$1" != "dispatch_with_arguments" ]; then
    l "Trying to run task \"task_$1\"..."
    "task_$1"
    return
  fi
  REQUESTED_TASK="$1"
  shift
  if [ -n "$1" ] && [ "$1" != "dispatch_with_arguments" ]; then
    l "Trying to run task \"task_$REQUESTED_TASK\"..."
    "task_$REQUESTED_TASK" "$@"
  fi
}

###########################################################
#DEFINE ALL NEEDED VARS, SHOW SOME INFO
###########################################################

ENVIRONMENT="development"
DIR_ROOT="$(pwd)"
DIR_CONFIG="$DIR_ROOT"/.config/"$ENVIRONMENT"
TIMESTAMP="$(date +%s)"
TIMESTAMP_NICE=$(date +"%Y-%m-%d %H:%M:%S")
DIR_DIST="$DIR_ROOT/dist"
TAR_DIST="$DIR_ROOT/dist.$ENVIRONMENT.$TIMESTAMP.tar.gz"
DIR_DOCROOT="/var/www/docroot"
DIR_DEPLOY_ROOT="/var/deploy"
DIR_DEPLOY="$DIR_DEPLOY_ROOT/$TIMESTAMP"
GITHUB_TOKEN="TOKEN"
DOCROOT="/var/www/html"

l "Environment is set to \"$ENVIRONMENT\""
l "Root directory is set to \"$DIR_ROOT\""

if [ ! -d "$DIR_CONFIG" ]; then
  l "$DIR_CONFIG does not exist." "ERROR"
  return
fi

###########################################################
#DEFINE ALL TASKS
###########################################################

task_build() {
  BUILD_NECESSARY=0
  FILE_LIMIT="$DIR_ROOT/.build"
  touch -d "-5 minutes" "$FILE_LIMIT"
  for FILE in "$DIR_ROOT"/.docker/*; do
    if [ "$FILE" -nt "$FILE_LIMIT" ]; then
      BUILD_NECESSARY=1
    fi
  done
  rm -f "$FILE_LIMIT"
  if [ -z "$(docker image ls -q app/nginx:production)" ]; then
    BUILD_NECESSARY=1
  fi
  if [ -z "$(docker image ls -q app/php:production)" ]; then
    BUILD_NECESSARY=1
  fi
  if [ -z "$(docker image ls -q app/node:production)" ]; then
    BUILD_NECESSARY=1
  fi
  if [ -z "$(docker image ls -q app/php:development)" ]; then
    BUILD_NECESSARY=1
  fi
  if [ "$BUILD_NECESSARY" = 1 ]; then
    docker build -t "app/nginx:production" -f ".docker/nginx.production.dockerfile" .
    docker build -t "app/php:production" -f ".docker/php.production.dockerfile" .
    docker build -t "app/node:production" -f ".docker/node.production.dockerfile" .
    docker build -t "app/php:development" -f ".docker/php.development.dockerfile" .
  else
    l "Build is not necessary."
  fi
}

task_up() {
  if [ -z "$(docker-compose ps -q)" ]; then
    docker-compose up -d
    docker-compose exec php composer config --global github-oauth.github.com "$GITHUB_TOKEN"
  else
    l "docker-compose daemon is already running."
  fi
}

task_restart() {
  if [ -n "$(docker-compose ps -q)" ]; then
    docker-compose restart
  else
    l "docker-compose daemon is down."
  fi
}

task_down() {
  if [ -n "$(docker-compose ps -q)" ]; then
    docker-compose down
  else
    l "docker-compose daemon is down."
  fi
}

task_install() {
  task_up
  docker-compose exec php composer --no-interaction validate
  docker-compose run node npm install
  if [ "$ENVIRONMENT" = "development" ]; then
    docker-compose exec php composer --no-interaction install
    docker-compose run node npm run build:dev
  else
    docker-compose exec php composer --no-suggest --no-dev --classmap-authoritative --optimize-autoloader --no-interaction install
    docker-compose run node npm run build:prod
  fi
  cp -rf "$DIR_CONFIG"/* "$DIR_ROOT"
}

task_update() {
  task_up
  docker-compose run node npm update
  if [ "$ENVIRONMENT" = "development" ]; then
    docker-compose exec php composer --no-interaction update
    docker-compose run node npm run build:dev
  else
    docker-compose exec php composer --no-suggest --no-dev --classmap-authoritative --optimize-autoloader --no-interaction update
    docker-compose run node npm run build:prod
  fi
  cp -rf "$DIR_CONFIG"/* "$DIR_ROOT"
}

task_uninstall() {
  task_up
  docker-compose exec php rm -rf ./vendor
  docker-compose run node rm -rf ./node_modules
}

task_clean() {
  task_up
  docker-compose exec php rm -rf ./data
  docker-compose exec php mkdir -p ./data/cache
  find "$DIR_ROOT" -maxdepth 1 -name "dist*tar.gz" -type f -delete
  rm -rf "$DIR_DIST"
}

task_tar() {
  task_install
  task_clean
  rm -rf "$DIR_DIST"
  mkdir -p "$DIR_DIST"
  rsync -az --exclude-from ".buildignore" -- "$DIR_ROOT/" "$DIR_DIST"
  tar -C "$DIR_DIST" -zcf "$TAR_DIST" .
  rm -rf "$DIR_DIST"
}

task_deploy() {
  task_install
  task_clean
  mkdir -p "$DIR_DEPLOY"
  rsync -az --exclude-from ".buildignore" -- "$DIR_ROOT/" "$DIR_DEPLOY"
  if [ -e "$DIR_DOCROOT" ]; then
    rm -f "$DIR_DOCROOT"
  fi
  ln -sf "$DIR_DEPLOY" "$DIR_DOCROOT"
  l "\"$DIR_DOCROOT\" now symlinks to \"$DIR_DEPLOY\""
}

task_slim() {
  FOUND_PATHS=$(ls -1drtA "$DIR_DEPLOY_ROOT"/*)
  COUNT=$(echo "$FOUND_PATHS" | wc -l)
  l "Total $COUNT paths found."
  LIMIT=$((COUNT - 3))
  if [ "$LIMIT" -lt 1 ]; then
    l "Nothing to remove."
    return
  fi
  INDEX=0
  for FOUND_PATH in $FOUND_PATHS; do
    if [ "$INDEX" = "$LIMIT" ]; then
      break
    fi
    l "Removing \"$FOUND_PATH\"..."
    if [ -d "$FOUND_PATH" ]; then
      rm -rf "$FOUND_PATH"
    else
      rm -f "$FOUND_PATH"
    fi
    INDEX=$((INDEX + 1))
  done
}

###########################################################
#DISPATCH REQUESTED TASK
###########################################################

if [ $# -eq 0 ] || [ "$1" = "help" ]; then
  l "No task requested. Available tasks are: build up down install update uninstall clean tar deploy slim"
  l "Usage example: sh run.sh build"
  exit 0
fi

task_dispatch_with_arguments "$@"