Untitled

#!/bin/bash
#
# An example hook script to prepare the commit log message.
# Called by "git commit" with the name of the file that has the
# commit message, followed by the description of the commit
# message's source.  The hook's purpose is to edit the commit
# message file.  If the hook fails with a non-zero status,
# the commit is aborted.
#
# To enable this hook, rename this file to "prepare-commit-msg".

COMMIT_MSG_FILE=$1
COMMIT_SOURCE=$2
SHA1=$3

# Only add custom message when there is no commit source
# ($COMMIT_SOURCE is empty). Otherwise, keep the default message
# proposed by Git. Possible commit source: message, template,
# merge, squash or commit. See https://git-scm.com/docs/githooks
if [ "$COMMIT_SOURCE" == "message" ] || [ -z "$COMMIT_SOURCE" ]
then
  ref=$(git rev-parse --abbrev-ref HEAD)
  if [[ $ref =~ ^.*((MLA)-[0-9]+).* ]]
  then
    hint=$(cat "$COMMIT_MSG_FILE")
    ticket="${BASH_REMATCH[1]}"
    if [ "$COMMIT_SOURCE" == "message" ]
    then
      echo "${ticket}: ${hint}" > "$COMMIT_MSG_FILE"
    else
      echo "${ticket}: " > "$COMMIT_MSG_FILE"
      echo "$hint" >> "$COMMIT_MSG_FILE"
    fi
  fi
fi

exit 0;