git_hook_post-receive

#!/bin/bash

# This file is a copy of production file .git/hooks/post-receive
# Used to deploy on `git push production`

set -e

export PORT=80
export AMBER_ENV=production

if [ "$GIT_DIR" = "." ]; then
  # The script has been called as a hook; chdir to the working copy
  cd ..
  unset GIT_DIR
fi

# try to obtain the usual system PATH
if [ -f /etc/profile ]; then
  PATH=$(source /etc/profile; echo $PATH)
  export PATH
fi

# get the current branch
head="$(git symbolic-ref HEAD)"

# read the STDIN to detect if this push changed the current branch
while read oldrev newrev refname
do
  [ "$refname" = "$head" ] && break
done

# abort if there's no update, or in case the branch is deleted
if [ -z "${newrev//0}" ]; then
  exit
fi

# check out the latest code into the working copy
umask 002
git reset --hard

logfile=log/deploy.log

if [ -z "${oldrev//0}" ]; then
  # this is the first push; this branch was just created
  mkdir -p log tmp bin
  chmod 0775 log tmp bin
  touch $logfile
  chmod 0664 $logfile

  # init submodules
  git submodule update --recursive --init 2>&1 | tee -a $logfile
else
  # log timestamp
  echo ==== $(date) ==== >> $logfile

  ################################################################################
  ####  BEGIN: Amberframework specific Code                                  #####
  ################################################################################

  shards install

  if [ -f bin/amber ]; then
    echo "amber already installed"
  else
    crystal build lib/amber/src/amber/cli.cr -o bin/amber --stats
  fi

  echo "Migrating..."
  ./bin/amber db create migrate || true
  echo "Building application in release mode"
  crystal build src/amberframework.cr -o bin/amberframework --release --stats

  systemctl status amberframework
  sudo systemctl restart amberframework
  systemctl status amberframework

  ## Code below is NOT required, now we're using an amberframework.sevice at /etc/systemd/system

  #old_pid=`cat tmp/amberframework.pid`
  #echo "Killing old process..."
  #kill -9 $old_pid || true # Move after start line if PORT_REUSE is on.
  #echo "Starting application..."
  #nohup ./bin/amberframework >> log/production.log 2>&1 & 
  #echo $! > tmp/amberframework.pid

  ################################################################################
  ####  END: Amberframework specific Code                                    #####
  ################################################################################
fi