#!/bin/sh
#
# Automatically adds jira id to commit message.
# The branch name must contains valid ticket prefix, eg. AT-[0-9]{1,}
#
# to support multiple projects edit $projects variable

projects="AT IT TEST GIT"
content="$(cat "$1")"
ticket=""
for p in $projects; do
  pattern="$p-[0-9]*"
  ticket=$(git symbolic-ref --short HEAD | sed 's/.*\('$pattern'\).*/\1/')
  if [[ "$jira" =~ $pattern ]]; then
    break
  else
    ticket=""
  fi
done
 
if [[ $ticket == "" ]]; then
  echo "${content}" > "$1"
  exit 0
fi
 
prefix="[${ticket}]"
 
if [[ $content == "${prefix}"* ]]; then
  echo "${content}" > "$1"
else
  echo "${prefix} "' '"${content}" > "$1"
fi