update.sh

#!/bin/bash

CHMOD_FILES=0460
CHMOD_DIRECTORIES=2570
CHMOD_PROJECT=0700
OWNER_USER=www-data
OWNER_GROUP=www-developer

CLI_USER=root
CLI_GROUP=root
CHMOD_CLI=0700

CLIENT_USER=root
CLIENT_GROUP=root
CHMOD_CLIENT=0700

function usageParam() {
  echo -e "  \e[32m$1\e[33m $2"
  echo -e "      \e[39m$3"
  if [ $4 != ".nodefault" ]; then
    echo -e "      Default: \e[94m$4"
  fi
  echo -e "\e[39m"
}

function usage() {
  echo -e "\e[41m --  DYNDNS UPDATER USAGE -- \e[49m"
  echo -e ""
  echo -e "Parameters:"
  usageParam "-ou|--ouser" "USER" "Owner user for web files and directories" $OWNER_USER
  usageParam "-og|--ogroup" "GROUP" "Owner group for web files and directories" $OWNER_GROUP
  usageParam "-cu|--cuser" "USER" "Owner user for CLI script files and directory" $CLI_USER
  usageParam "-cg|--cgroup" "GROUP" "Owner group for CLI script files and directory" $CLI_GROUP
  usageParam "-du|--duser" "USER" "Owner user for client script files and directory" $CLIENT_USER
  usageParam "-dg|--dgroup" "GROUP" "Owner group for client script files and directory" $CLIENT_GROUP
  usageParam "-mf|--mfile" "MODE" "Permission mode for web files" $CHMOD_FILES
  usageParam "-md|--mdir" "MODE" "Permission mode for web directories" $CHMOD_DIRECTORIES
  usageParam "-mp|--mproject" "MODE" "Permission mode for project files (e.g. .gitignore)" $CHMOD_PROJECT
  usageParam "-mc|--mcli" "MODE" "Permission mode for CLI scripts" $CHMOD_CLI
  usageParam "-md|--mclient" "MODE" "Permission mode for client scripts" $CHMOD_CLIENT
  usageParam "-h|--help" "" "Show this usage help" ".nodefault"
  echo -e ""
}

while [ "$1" != "" ]; do
    case $1 in
        -mf | --mfile )         shift
                                CHMOD_FILES=$1
                                ;;
        -md | --mdir )          shift
                                CHMOD_DIRECTORIES=$1
                                ;;
        -mp | --mproject )      shift
                                CHMOD_PROJECT=$1
                                ;;
        -mc | --mcli )          shift
                                CHMOD_CLI=$1
                                ;;
        -md | --mclient )       shift
                                CHMOD_CLIENT=$1
                                ;;
        -ou | --ouser )         shift
                                OWNER_USER=$1
                                ;;
        -og | --ogroup )        shift
                                OWNER_GROUP=$1
                                ;;
        -cu | --cuser )         shift
                                CLI_USER=$1
                                ;;
        -cg | --cgroup )        shift
                                CLI_GROUP=$1
                                ;;
        -du | --duser )         shift
                                CLIENT_USER=$1
                                ;;
        -dg | --dgroup )        shift
                                CLIENT_GROUP=$1
                                ;;
        -h | --help )           usage
                                exit
                                ;;
        * )                     usage
                                exit 1
    esac
    shift
done

# args: text, back, text
function printWithColor() {
  echo -e "\e[$2m\e[$3m[updater] $1\e[49m\e[39m"
}

function cdBack() {
  printWithColor "Switching back to $CW_DIR..." 46 30
  cd $CW_DIR
}

SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
CW_DIR=`pwd`

printWithColor "Switching to $SCRIPT_DIR..." 46 30
cd $SCRIPT_DIR
printWithColor "Checking differences from remote repository..." 45 30
WCL_LOG=`git log origin/master..HEAD | wc -l`
if [ $WCL_LOG -gt 0 ]; then
  printWithColor "Found pending commits." 41 30
  printWithColor "Please push them or reset branch before continuing the update." 41 30
  cdBack
  printWithColor "Exit." 41 30
  exit 1
fi
WCL_ADD=`git diff | egrep '^\+' | wc -l`
WCL_REMOVE=`git diff | egrep '^\-' | wc -l`
if [ $WCL_ADD -gt 0 ] || [ $WCL_REMOVE -gt 0 ]; then
  printWithColor "Found difference in the content of files." 41 30
  printWithColor "Please commit and push or reset them before continuing the update." 41 30
  cdBack
  printWithColor "Exit." 41 30
  exit 2
fi
WCL_GITDIFF=`git diff | wc -l`
if [ "$WCL_GITDIFF" -eq 0 ]; then
  printWithColor "No difference found." 42 30
else
  WCL_DIFF=`git diff | egrep '^diff' | wc -l`
  WCL_NEWMODE=`git diff | egrep '^new mode' | wc -l`
  WCL_OLDMODE=`git diff | egrep '^old mode' | wc -l`
  WCL_TOTAL=$((WCL_DIFF + WCL_NEWMODE + WCL_OLDMODE))
  if [ "$WCL_TOTAL" -eq "$WCL_GITDIFF" ]; then
    printWithColor "Difference only found in file modes." 42 30
    printWithColor "Reseting local repository..." 45 30
    git reset --hard
  else
    printWithColor "Unknown difference found or error occurred." 41 30
    printWithColor "Please check with 'git diff' and 'git status' before continuing the update." 41 30
    cdBack
    printWithColor "Exit." 41 30
    exit 3
  fi
fi

printWithColor "git pull" 45 30
git pull
printWithColor "Set owners" 45 30
printWithColor "Owner user: $OWNER_USER" 103 30
printWithColor "Owner group: $OWNER_GROUP" 103 30
printWithColor "Owner of CLI scripts: ${CLI_USER}:${CLI_GROUP}" 103 30
printWithColor "Owner of client scripts: ${CLIENT_USER}:${CLIENT_GROUP}" 103 30
chown -R $OWNER_USER:$OWNER_GROUP .
chown -R $CLI_USER:$CLI_GROUP ./cli
chown -R $CLIENT_USER:$CLIENT_GROUP ./client
printWithColor "Set permissions" 45 30
printWithColor "Mode for files: $CHMOD_FILES" 103 30
printWithColor "Mode for directories: $CHMOD_DIRECTORIES" 103 30
printWithColor "Mode for CLI scripts: $CHMOD_CLI" 103 30
printWithColor "Mode for client scripts: $CHMOD_CLIENT" 103 30
printWithColor "Mode for project files: $CHMOD_PROJECT" 103 30
find . -type f -exec chmod $CHMOD_FILES {} \;
find . -type d -exec chmod $CHMOD_DIRECTORIES {} \;
find cli -type f -exec chmod $CHMOD_CLI {} \;
find client -type f -exec chmod $CHMOD_CLIENT {} \;
chmod $CHMOD_PROJECT .gitignore update.sh
chmod +x update.sh
cdBack
printWithColor "Ready." 42 30
exit 0