Git hook to automatically create JIRA issues if not present in commit message

commit-msg

#!/usr/bin/env bash

#
# How to install:
#
#  cp commit-msg your-project/.git/hooks/
#  chmod 755 your-project/.git/hooks/commit-msg
#
# Then update the USER, PASS, PROJECT and JIRAURL variables in your-project/.git/hooks/commit-msg
#
# How to delete mis-created issues:
#   curl -u username:password -X DELETE https://jira.example.com/rest/api/2/issue/JIRAKEY-9999999
#
# Ref. https://gist.github.com/henrik242/958389b6c52e3fa50bf9
#

USER=myJiraUserName
PASS=myJiraPassword
PROJECT=JIRAKEY
JIRAURL=https://jira.example.com
LABELS='"some-label","some-other-label"'

COMMIT=$1

if grep -q ${PROJECT}- $COMMIT; then
  echo
  echo "Commit message already has issue number. Good!"
  echo
  exit 0
fi

RESULT=/tmp/commit-msg-result-$(date +%s)

TITLE=$(perl -0777 -pe 's/\n.*$//mg; s/"/\\"/g' $COMMIT)
SUMMARY=$(perl -0777 -pe 's/\n/\\n/g; s/\\n#.*$//; s/"/\\"/g' $COMMIT)

curl -s -u "$USER:$PASS" --data "{
  \"fields\": {
    \"project\":{\"key\":\"$PROJECT\"},
    \"summary\":\"$TITLE\",
    \"description\":\"$SUMMARY\",
    \"issuetype\":{\"name\":\"Task\"},
    \"labels\": [$LABELS]
  }
}" -H "Content-Type: application/json" $JIRAURL/rest/api/2/issue/ > $RESULT

if ! grep -q ${PROJECT}- $RESULT; then
  echo "Aborting: Could not create issue number!" 1>&2
  cat $RESULT 1>&2
  rm $RESULT
  exit 1
fi

NEWCOMMIT=/tmp/commit-msg-new-$(date +%s)

ISSUE=$(cut -d\" -f8 $RESULT)
echo -n "$ISSUE " > $NEWCOMMIT
cat $COMMIT >> $NEWCOMMIT
mv $NEWCOMMIT $COMMIT
rm $RESULT

echo
echo "Created issue $JIRAURL/browse/$ISSUE"
echo

exit 0