check-mergify-merge

#!/usr/bin/env bash
# Everything that is normally printed to `stdout` in the script will be redirected to `stderr`
# which will be visible in tty/Travis log.
# Outputs that is printed to `fd 3` will be redirected to `stdout`,
# which will be finally assigned to a variable `$SKIP`
exec 3>&1 1>&2 # fd 3 = fd 1; fd 1 = fd 2

function return_to_travis {
    STRATEGY="${1}"
    echo "${STRATEGY}" >&3
    exit 0
}
function skip_travis { return_to_travis "skip" ; }
function noskip_travis { return_to_travis "noskip" ; }

echo "TRAVIS_EVENT_TYPE=${TRAVIS_EVENT_TYPE}"
echo "TRAVIS_BRANCH=${TRAVIS_BRANCH}"
echo "TRAVIS_COMMIT=${TRAVIS_COMMIT}"

set -xe

case ${TRAVIS_EVENT_TYPE} in
push)
    if [[ "${TRAVIS_BRANCH}" = master ]]
    then
        echo "Push on master"
    else
        echo "Don't skip testing for other than master"
        noskip_travis
    fi
    ;;
*)
    echo "Don't skip for PR, api, cron event"
    noskip_travis
    ;;
esac

MERGIFY_COMMITTER="mergify[bot] <mergify[bot]@users.noreply.github.com>"
COMMITTER=$(git show --format="%cN <%cE>" --no-patch "${TRAVIS_COMMIT}")
RESULT=$?
if [[ "$RESULT" -ne 0 ]]
then
    echo "Error: cannot get the committer"
    exit $RESULT
fi

if [[ "${COMMITTER}" = "${MERGIFY_COMMITTER}" ]]
then
    echo "Skip check since it was checked in other PR"
    skip_travis
else
    noskip_travis
fi