SSURGO_BatchDownload.py 文件源码

def GetTabularDate(newFolder):
    # Get string for SAVEREST date from tabular/sacatlog.txt file
    # Use it to compare with the date from the WSS dataset
    # If the existing database is same or newer, it will be kept and the WSS version skipped
    # The original string looks like this: 12/05/2013 23:44:00
    #
    # Return YYYYMMDD as integer

    try:
        tabDate = 0

        # Try finding the text file in the tabular folder and reading SAVEREST from that file.
        saCatalog = os.path.join(newFolder, r"tabular\sacatlog.txt")

        if arcpy.Exists(saCatalog):
            fh = open(saCatalog, "r")
            rec = fh.readline()
            fh.close()
            # Example date (which is index 3 in pipe-delimited file):  9/23/2014 6:49:27
            vals = rec.split("|")
            recDate = vals[3]
            wssDate = "%m/%d/%Y %H:%M:%S"  # string date format used for SAVEREST in text file
            intDate = "%Y%m%d"             # YYYYMMDD format for comparison
            dateObj = datetime.strptime(recDate, wssDate)
            tabDate = int(dateObj.strftime(intDate))

        else:
            AddMsgAndPrint(" \nUnable to find file: " + saCatalog, 1)

        return tabDate

    except:
        errorMsg()
        return tabDate

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