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Source code for galaxy.job_metrics.instrumenters.hostname

"""The module describes the ``cpuinfo`` job metrics plugin."""
import logging

from . import InstrumentPlugin
from .. import formatting

log = logging.getLogger(__name__)


class HostnameFormatter(formatting.JobMetricFormatter):

    def format(self, key, value):
        return key, value


class HostnamePlugin(InstrumentPlugin):
    """ Gather hostname
    """
    plugin_type = "hostname"
    formatter = HostnameFormatter()

    def __init__(self, **kwargs):
        pass

    def pre_execute_instrument(self, job_directory):
        return "hostname -f > '%s'" % self.__instrument_hostname_path(job_directory)

    def job_properties(self, job_id, job_directory):
        with open(self.__instrument_hostname_path(job_directory)) as f:
            return {'hostname': f.read().strip()}

    def __instrument_hostname_path(self, job_directory):
        return self._instrument_file_path(job_directory, "hostname")


__all__ = ('HostnamePlugin', )