コード例 #1
0
ファイル: utils.py プロジェクト: ekeydar/OpenTrains
def download_gtfs_file():
    """ download gtfs zip file from mot, and put it in DATA_DIR in its own subfolder """
    local_dir = os.path.join(GTFS_DATA_DIR,ot_utils.get_utc_time_underscored())
    ot_utils.mkdir_p(local_dir)
    local_path = os.path.join(local_dir,FILE_NAME)
    ot_utils.ftp_get_file(MOT_FTP,FILE_NAME,local_path)
    ot_utils.unzip_file(local_path,local_dir)
コード例 #2
0
ファイル: utils.py プロジェクト: hasadna/OpenTrain2
def download_gtfs_file(force=False):
    """ download gtfs zip file from mot, and put it in DATA_DIR in its own subfolder """
    import shutil
    time_suffix = ot_utils.get_utc_time_underscored()
    if not os.path.exists(GTFS_DATA_DIR):
        ot_utils.mkdir_p(GTFS_DATA_DIR)
    tmp_file = '/tmp/{0}_tmp.zip'.format(time_suffix)
    LOGGER.info('downloading GTFS to tmp file')
    ot_utils.ftp_get_file(MOT_FTP, FILE_NAME, tmp_file)
    if not force:
        tmp_md5 = ot_utils.md5_for_file(tmp_file)
        last_dir = ot_utils.find_lastest_in_dir(GTFS_DATA_DIR)
        if last_dir:
            was_success = os.path.exists(os.path.join(last_dir, 'success'))
            if not was_success:
                LOGGER.info('Last time was not success')
            else:
                last_file = os.path.join(last_dir, FILE_NAME)
                try:
                    last_md5 = ot_utils.md5_for_file(last_file)
                except Exception as e:
                    LOGGER.exception('failed in md5 for last file - ignoring')
                    last_md5 = 'error_in_md5'
                if last_md5 == tmp_md5:
                    LOGGER.info('Checksum is identical - removing tmp file')
                    os.remove(tmp_file)
                    return None

    LOGGER.info('Checksum is different or force -- copying')
    local_dir = os.path.join(GTFS_DATA_DIR, time_suffix)
    ot_utils.mkdir_p(local_dir)
    try:
        os.remove(os.path.join(GTFS_DATA_DIR,'latest'))
    except (IOError, OSError):
        pass
    os.symlink(local_dir, os.path.join(GTFS_DATA_DIR,'latest'))
    local_file = os.path.join(local_dir, FILE_NAME)
    shutil.move(tmp_file, local_file)
    ot_utils.unzip_file(local_file, local_dir)
    LOGGER.info('All gtfs files are in %s' % local_dir)
    return local_dir
コード例 #3
0
ファイル: utils.py プロジェクト: habeanf/OpenTrain
    last_file = os.path.join(last_dir,FILE_NAME)
    try:
        last_md5 = ot_utils.md5_for_file(last_file)
    except Exception,e:
        print e
        last_md5 = 'error_in_md5'
    if last_md5 != tmp_md5:
        print 'Checksum is different- copying'
        ot_utils.mkdir_p(local_dir)
        local_file = os.path.join(local_dir,FILE_NAME)
        shutil.move(tmp_file,local_file)
    else:
        print 'Checksum is identical - removing tmp file'
        os.remove(tmp_file)
        return
    
    if not download_only:
        ot_utils.unzip_file(local_file,local_dir)   
    
        
def find_gtfs_data_dir():
    """ returns the lastest subfolder in DATA_DIR """
    dirnames = glob.glob("%s/*" % (GTFS_DATA_DIR))
    if not dirnames:
        raise Exception("No data dir found in %s" % (GTFS_DATA_DIR))
    # return the latest
    return sorted(dirnames)[-1]