post-receive

#!/bin/sh

PJ_NAME="my_project"
DP_BRANCH="master"

HTDOCS_ROOT="/var/www/scripts/dev"
GIT_ROOT="/opt/git"
LOG_DIR="/tmp"

GIT_BIN="/usr/bin/git"

PJ_DIR=$HTDOCS_ROOT/$PJ_NAME
GIT_DIR=$GIT_ROOT/$PJ_NAME.git
LOG_PATH=$LOG_DIR/$PJ_NAME"_deploy.log"


# Base check

# Check all work directories
if [ -d $PJ_DIR ]; then
  if [ ! -w $PJ_DIR ]; then
    echo "ERROR: PROJECT DIR not writable!"
    exit 1
  fi
else
  echo "ERROR: PROJECT DIR not found!"
  exit 1
fi

# Check all work directories
if [ -d $GIT_DIR ]; then
  if [ ! -w $GIT_DIR ]; then
    echo "ERROR: GIT DIR not writable!"
    exit 1
  fi
else
  echo "ERROR: GIT DIR not found!"
  exit 1
fi

if [ -d $LOG_DIR ]; then
  if [ ! -w $LOG_DIR ]; then
    echo "ERROR: LOG DIR not writable!"
    exit 1
  fi
else
  echo "ERROR: LOG DIR not found!"
  exit 1
fi

# Check exe files
if [ ! -f $GIT_BIN ]; then
  echo "ERROR: GIT bin file not found!"
  exit 1
fi


# Function logger
logger(){
  if [ ! $LOG_PATH ]; then
    touch $LOG_PATH
  fi
  mess=[$(date '+%Y-%m-%d %H:%M:%S')]" "$1
  echo $mess >> $LOG_PATH
  echo $mess
}

# Function info
branch_name=""
branch_rev=""
info(){
  while read oldrev newrev refname; do
    branch_name=$(echo $refname | sed 's/.*\///')
    branch_rev=$newrev
  done
}

# Function erase
erase(){
  logger "ERASE: cleaning the working directory..."
  find $PJ_DIR -mindepth 1 -type f -exec rm -f {} \;
  find $PJ_DIR -mindepth 1 -type d -empty -delete
  if [ "$(ls -A $PJ_DIR)" ]; then
    logger "ERASE: сleaning attempt failed! Exiting..."
    exit 1
  else
    logger "ERASE: success!"
  fi
}

# Function deploy
deploy(){
  logger "DEPLOY: deploying "$DP_BRANCH" branch to production..."
  $GIT_BIN --work-tree=$PJ_DIR --git-dir=$GIT_DIR checkout -f
  logger "DEPLOY: success!"
}

# Launcher do deploy
do_deploy(){
  info
  if [ "$branch_name" = "$DP_BRANCH" ]; then
    logger "DO DEPLOY: updating project \""$PJ_NAME"\" to commit "$branch_rev
    erase
    deploy
    logger "DO DEPLOY: done!"
  fi
}

do_deploy