[meta]
    title = cycling period change
    description = """change cycle points"""

[scheduler]
   UTC mode = True
   [[events]]
       stall timeout = PT0S
       abort on stall timeout = True

[scheduling]
    initial cycle point = 20100101T00
    final cycle point = 20100101T18
    [[graph]]
        T00 = reloader => a
        T00,T12 = a[-PT12H] => a
[runtime]
    [[reloader]]
        script = """
            # I should only run once.
            if ((CYLC_TASK_SUBMIT_NUMBER != 1)); then
                exit 1
            fi
            sed -i 's/T00,T12 = a\[-PT12H\]/T00,T06,T12,T18 = a[-PT6H]/'\
                 "${CYLC_WORKFLOW_RUN_DIR}/flow.cylc"
            cylc reload "${CYLC_WORKFLOW_ID}"
            cylc__job__poll_grep_workflow_log -F 'Reload completed'
        """
    [[a]]
        script = true
