Limit commits in git local repo to 5mb for file. (Preventing accidental commits DB_DUMP.sql fiels and so on...)

pre-commit

#!/usr/bin/env bash

# make it chmod a+x ./git/hooks/pre-commit

GITCMD=$(which git) # "/usr/bin/git"
NULLSHA="0000000000000000000000000000000000000000"
MAXSIZE="5242880" # 5MB limit on file size
EXIT=0
echo 'START PRECOMMIT CHECKING...'

# Get list of files to look at using git diff
for file in $($GITCMD diff --cached --name-only --diff-filter=ACMRT); do
    # Get the size of this file
    size=$($GITCMD cat-file -s ${newref}:${file})
    #echo "INFO: ${file} has size ${size}."
    # Check to see if for some reason we didn't get a size
    if [ ! -z ${size} ]; then
      # Compare filesize to MAXSIZE
      if [ "${size}" -gt "${MAXSIZE}" ]; then
        # Send output back to the user about oversized files.
        echo -e "\033[31m${file}\033[0m larger than ${MAXSIZE}" 1>&2
        EXIT=1
      fi # End size comparison
    fi   # End check for empty size
done   # End list of files

# If we have oversized files, write more information out to the user
if [ "${EXIT}" = "1" ]; then
  echo -e "ERROR: Your commit has been blocked due to certain files being oversized."
  echo -e "ERROR: Check output above for more information."
fi

exit ${EXIT}