Prepend commit message with ticket number in case your branch is of format 'branch#123` where 123 is a number.

prepare-commit-msg

# based on https://medium.com/@nicklee1/prepending-your-git-commit-messages-with-user-story-ids-3bfea00eab5a

# Include any branches for which you wish to disable this script
if [ -z "$BRANCHES_TO_SKIP" ]; then
  BRANCHES_TO_SKIP=(master develop staging test)
fi

# Get the current branch name and check if it is excluded
BRANCH_NAME=$(git symbolic-ref --short HEAD)
BRANCH_EXCLUDED=$(printf "%s\n" "${BRANCHES_TO_SKIP[@]}" | grep -c "^$BRANCH_NAME$")
TRIMMED=$(echo $BRANCH_NAME | sed -n -r -e "s/.+(\#.+)$/\1/p")

# If it isn't excluded, preprend the trimmed branch identifier to the given message
if [ -n "$BRANCH_NAME" ] &&  ! [[ $BRANCH_EXCLUDED -eq 1 ]]; then
  sed -i.bak -e "1s/^/$TRIMMED /" $1
fi