Bash Example Pre-Receive

pre-receive.sh

#!/usr/bin/env bash

zero_commit="0000000000000000000000000000000000000000"
excludeExisting="--not --all"

while read oldrev newrev refname; do
  echo $refname $oldrev $newrev

  # branch or tag get deleted
  if [ "$newrev" = "$zero_commit" ]; then
    continue
  fi

  # Check for new branch or tag
  if [ "$oldrev" = "$zero_commit" ]; then
    span=`git rev-list $newrev $excludeExisting`
  else
    span=`git rev-list $oldrev..$newrev $excludeExisting`
  fi

  for COMMIT in $span;
  do
    commit_message=`git log -1 --format=%s $COMMIT`;        
    echo $commit_message
    
    if ! [[ $commit_message =~ ^[[:alnum:]\#\.\'\/[:space:][:blank:]]+$ ]]; then
	    echo "================================================================= "
	    echo "██████╗ ███████╗     ██╗███████╗ ██████╗████████╗███████╗██████╗  "
	    echo "██╔══██╗██╔════╝     ██║██╔════╝██╔════╝╚══██╔══╝██╔════╝██╔══██╗ "
	    echo "██████╔╝█████╗       ██║█████╗  ██║        ██║   █████╗  ██║  ██║ "
	    echo "██╔══██╗██╔══╝  ██   ██║██╔══╝  ██║        ██║   ██╔══╝  ██║  ██║ "
	    echo "██║  ██║███████╗╚█████╔╝███████╗╚██████╗   ██║   ███████╗██████╔╝ "
	    echo "╚═╝  ╚═╝╚══════╝ ╚════╝ ╚══════╝ ╚═════╝   ╚═╝   ╚══════╝╚═════╝  "
	    echo "================================================================= "
	    echo " rule: carateres não permitidos					                "
	    echo " São permitidos apenas  [[:alnum:]\#\.\'\/[:space:][:blank:]]     "
	    echo "================================================================= "
	    exit 1
    fi

    if ! [[ $commit_message =~ [[:alnum:]\#\.\'\/[:space:][:blank:]]{10,50} ]]; then
	    echo "================================================================= "
	    echo "██████╗ ███████╗     ██╗███████╗ ██████╗████████╗███████╗██████╗  "
	    echo "██╔══██╗██╔════╝     ██║██╔════╝██╔════╝╚══██╔══╝██╔════╝██╔══██╗ "
	    echo "██████╔╝█████╗       ██║█████╗  ██║        ██║   █████╗  ██║  ██║ "
	    echo "██╔══██╗██╔══╝  ██   ██║██╔══╝  ██║        ██║   ██╔══╝  ██║  ██║ "
	    echo "██║  ██║███████╗╚█████╔╝███████╗╚██████╗   ██║   ███████╗██████╔╝ "
	    echo "╚═╝  ╚═╝╚══════╝ ╚════╝ ╚══════╝ ╚═════╝   ╚═╝   ╚══════╝╚═════╝  "
	    echo "================================================================= "
	    echo " rule: mensagem de commite deve entre 10 e 50 caracteres          "
	    echo "================================================================= "
	    exit 1
    fi

    multiples=$(echo $commit_message | grep -ohc "[[:blank:][:punct:][:space:]][[:blank:][:punct:][:space:]][[:blank:][:punct:][:space:]]")

    if ! [[ $multiples -eq 0 ]]; then
	    echo "================================================================= "
	    echo "██████╗ ███████╗     ██╗███████╗ ██████╗████████╗███████╗██████╗  "
	    echo "██╔══██╗██╔════╝     ██║██╔════╝██╔════╝╚══██╔══╝██╔════╝██╔══██╗ "
	    echo "██████╔╝█████╗       ██║█████╗  ██║        ██║   █████╗  ██║  ██║ "
	    echo "██╔══██╗██╔══╝  ██   ██║██╔══╝  ██║        ██║   ██╔══╝  ██║  ██║ "
	    echo "██║  ██║███████╗╚█████╔╝███████╗╚██████╗   ██║   ███████╗██████╔╝ "
	    echo "╚═╝  ╚═╝╚══════╝ ╚════╝ ╚══════╝ ╚═════╝   ╚═╝   ╚══════╝╚═════╝  "
	    echo "================================================================= "
	    echo " rule: não são permitidos multiplos caracteres de pontuação ou    "
	    echo " espaço seguidos.                                                 "
	    echo "================================================================= "
	    exit 1
    fi
  done
done
exit 0