Forked to automatically append git commit with a branch name instead prepend

prepare-commit-msg.sh

#!/bin/bash

#
# Appends a message to every comit. Usefull for linking issues back
# from bug track systems.
#

# This way you can customize which branches should be skipped when
# apending commit message. 
if [ -z "$BRANCHES_TO_SKIP" ]; then
  BRANCHES_TO_SKIP=(master develop test)
fi

BRANCH_NAME=$(git symbolic-ref --short HEAD)
BRANCH_NAME="${BRANCH_NAME##*/}"

BRANCH_EXCLUDED=$(printf "%s\n" "${BRANCHES_TO_SKIP[@]}" | grep -c "^$BRANCH_NAME$")
BRANCH_IN_COMMIT=$(grep -c "\[$BRANCH_NAME\]" $1)

if [ -n "$BRANCH_NAME" ] && ! [[ $BRANCH_EXCLUDED -eq 1 ]] && ! [[ $BRANCH_IN_COMMIT -ge 1 ]]; then
  sed -i.back "1s/^/\n\nRelates: $BRANCH_NAME/" "$1"
fi