buildhuman.sh

#!/bin/bash -l

shopt -s nullglob

enqueue() {
    for rev; do
        echo -n "$rev" > "$(mktemp "$queuedir/$(date +%s).XXXXXX")"
    done
}

run_tests_for() {
    local name=$1 command=$2
    local previous_logs=("$LOGSDIR"/*-"$revision"-"$name".log)

    if ! ((${#previous_logs[@]})); then
        bundle exec 'rake db:reset && rake db:test:prepare' || exit

        echo "running $name"
        { bundle exec "$command" 2>"$lockdir/stderr"
          echo; echo; echo "STDERR:"; echo
          cat "$lockdir/stderr"; echo
        } | tee "$lockdir/$date-$revision-$name.log"
        echo "done"

        mv "$lockdir/$date-$revision-$name.log" "$LOGSDIR/$date-$revision-$name.log"
        echo "  log: $LOGSDIR/$date-$revision-$name.log"
    else
        echo "logs for $name on revision $revision already exist, skipping."
    fi
}

echo "starting..."
echo "  pid: $$"

# setup rvm and cwd to project's dir
rvm rvmrc trust "$WORKSPACE" && cd "$WORKSPACE" || exit

echo "  saving logs to: ${LOGSDIR:=$PWD}"

lockdir=/tmp/monaqasat_tests.lock
queuedir=$lockdir/queue

# atomic lock acquisition
if mkdir "$lockdir"; then
    # remove lock on exit
    trap 'rm -rf "$lockdir"' 0

    # dir to save scheduled runs
    mkdir -p "$queuedir"

    # enqueue current args or schedule master
    enqueue "${@:-origin/master}"

    while true; do
        queue=("$queuedir"/*)

        if ((${#queue[@]})); then
            rev=$(<"${queue[0]}")

            # refresh repository
            GIT_SSH=ssh-wrapper git fetch && git checkout -f "$rev" || exit

            # update gems
            bundle install || exit

            # run tests
            date=$(date +%Y-%m-%d) revision=$(git rev-parse HEAD)

            run_tests_for rspec 'rspec spec'
            run_tests_for cucumber 'cucumber --require features'

            # remove scheduled run and search again
            rm "${queue[0]}"
        else
            break
        fi
    done
else
    if (($#)); then
        echo "lock found, scheduling..."
        enqueue "$@"
    else
        echo "cannot acquire lock, aborting." >&2
    fi
    exit
fi

echo "finished."