1 | #!/usr/bin/env python |
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2 | |
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3 | """ |
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4 | SYNOPSIS |
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5 | |
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6 | mk_AVAILABLE.py: [-s,--startdate] [-e,--enddate] [-m,--model /ECWMF/ERAI/GFS] [-p, --path] [-a, --avpath] [-i, --interval] [-h] [-v,--verbose] [--version] |
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7 | |
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8 | DESCRIPTION |
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9 | |
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10 | mk_AVAIL is a script to create AVAILABLE files for FLEXPART windfields. |
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11 | |
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12 | Example usage: |
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13 | %mk_AVAIL.py -s 200601 -e 200701 -m ECMWF -p . -h |
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14 | |
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15 | would create a file: AVAIALABLE that contained paths |
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16 | of all files available in the current directory between 200601 and 200701. |
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17 | The default start date is 197001 and the default end date is TODAY. |
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18 | |
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19 | adapted and simplified version / Petra Seibert |
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20 | v.004: add ERA-Interim with EI as model, proper sorting of dates if year 2000 included, option to define a path for AVAILABLE / Petra Seibert 2015-10-21 |
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21 | v.005: check whether any files are found before opening AVAILABLE, if not issue warning and stop. / Petra Seibert 2015-12-07 |
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22 | |
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23 | QUESTIONS |
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24 | |
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25 | JFB: <jfb@nilu.no> |
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26 | v.003: petra.seibert at boku.ac.at |
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27 | v.004: petra.seibert at boku.ac.at |
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28 | v.005: petra.seibert at boku.ac.at |
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29 | |
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30 | LICENSE |
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31 | |
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32 | This script follows creative commons usage. |
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33 | |
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34 | VERSION |
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35 | |
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36 | $Id: 0.004 $ |
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37 | |
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38 | """ |
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39 | |
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40 | import sys |
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41 | import os |
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42 | import traceback |
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43 | import optparse |
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44 | import time |
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45 | import datetime |
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46 | import socket |
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47 | import glob |
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48 | import string |
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49 | |
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50 | |
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51 | def main (): |
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52 | |
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53 | global options, args |
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54 | |
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55 | WIND_dir = '/xnilu_wrk/flex_wrk/WIND_FIELDS' |
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56 | |
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57 | ## THE AVAILABE MODEL PRODUCTS (ultimately this comes from a DB) |
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58 | MODEL = {} |
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59 | MODEL['ECMWF'] = {'prefix':'EN', 'timeindex':2} |
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60 | MODEL['ERAI'] = {'prefix':'EI', 'timeindex':2} |
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61 | MODEL['GFS'] = {'prefix':'GF', 'timeindex':2} |
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62 | |
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63 | AVAIL_head = """DATE TIME FILENAME SPECIFICATIONS\ |
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64 | \nYYYYMMDD HHMISS\ |
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65 | \n________ ______ __________________ __________________\n""" |
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66 | start_date = options.startdate |
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67 | sy = int(start_date[0:4]) |
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68 | sm = int(start_date[4:6]) |
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69 | end_date = options.enddate |
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70 | ey = int(end_date[0:4]) |
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71 | em = int(end_date[4:6]) |
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72 | # print end_date |
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73 | |
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74 | #Get the directory information |
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75 | M = MODEL[options.model] |
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76 | prfx = M['prefix'] |
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77 | t = options.path |
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78 | avpath = options.avpath |
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79 | |
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80 | |
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81 | #Loop through the files in the directories |
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82 | warned = False |
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83 | d = t #directory |
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84 | # print d |
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85 | tind = M['timeindex'] #timestamp index |
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86 | searchstr = os.path.join(t,prfx) |
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87 | print 'searchstring:',searchstr |
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88 | files = glob.glob(searchstr+'*') |
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89 | # print files |
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90 | dict_dates={} |
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91 | for f in files: |
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92 | if (f[0:2] == './'): f = f[2:] # PS - remove this part if present |
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93 | fn = os.path.basename(f) |
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94 | if fn[-1]!='*': |
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95 | timestamp = fn[tind:] |
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96 | year = int(timestamp[0:2]) |
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97 | if year < 58: |
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98 | year += 2000 |
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99 | else: |
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100 | year += 1900 |
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101 | dtstring = str(year)+' '+timestamp[2:9] |
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102 | dict_dates[dtstring] = f |
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103 | dates=sorted(dict_dates.items()) |
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104 | if len(dates) == 0: |
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105 | print 'no files found with this search string' |
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106 | print 'aborting. ' |
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107 | sys.exit(0) |
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108 | else: |
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109 | print 'found ',len(dates),'files' |
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110 | #Prepare output files |
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111 | fout = file(os.path.join(avpath,'AVAILABLE'),'w') |
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112 | fout.write(AVAIL_head) |
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113 | |
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114 | for i,date in enumerate(dates): # go through dates in ascending order |
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115 | f = date[1] # now we have the filename+path |
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116 | fn = os.path.basename(f) |
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117 | if fn[-1]!='*': |
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118 | timestamp = fn[tind:] |
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119 | year = int(timestamp[0:2]) |
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120 | if year < 58: |
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121 | year += 2000 |
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122 | else: |
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123 | year += 1900 |
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124 | month = int(timestamp[2:4]) |
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125 | day = int(timestamp[4:6]) |
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126 | hour = int(timestamp[6:8]) |
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127 | fileT = year*100 + int(timestamp[2:4]) |
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128 | # PS: check for irregular intervals |
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129 | date = datetime.datetime(year,month,day,hour) |
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130 | if i == 2: |
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131 | if options.timeint == '': |
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132 | timeint = date - date1 |
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133 | else: |
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134 | timeint = datetime.timedelta(0,3600*int(options.timeint)) |
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135 | if timeint != date - date1: |
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136 | print 'WARNING - irregular interval',date - date1 |
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137 | print date1,f1,'\n',date, f,'\n' |
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138 | elif i > 2: |
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139 | if timeint != date - date1: |
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140 | print 'WARNING - irregular interval',date - date1 |
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141 | print date1,f1,'\n',date, f,'\n' |
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142 | if options.timeint == '': timeint = date - date1 |
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143 | date1 = date |
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144 | f1 = f |
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145 | |
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146 | if i%5000 == 0: print 'progress:', i, f |
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147 | |
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148 | if fileT <= ey*100 + em and fileT >= sy*100 + sm: |
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149 | #if month <= em and month >= sm: |
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150 | #print 'Match: %s' % fn |
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151 | #This is the fortran format: (i8,1x,i6,2(6x,a18)) |
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152 | relpath = os.path.relpath(os.path.dirname(f),avpath) |
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153 | f = os.path.join(relpath,fn) |
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154 | if (f[0:2] == './'): f = f[2:] # remove this part if present |
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155 | # print fn,f |
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156 | if len(f) > 18: #PS |
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157 | if not warned: |
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158 | print 'WARNING: Flexpart can only read 18 chars in WF-name' |
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159 | print f, ' has ', len(f), ' characters!\n' |
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160 | warned = True |
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161 | string = "%s%s%s %s0000 %s ON DISC\n" %\ |
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162 | (year,str(month).zfill(2),str(day).zfill(2),str(hour).zfill(2),f.ljust(18)) |
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163 | fout.write(string) |
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164 | |
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165 | print 'Done: ',i+1 # as i starts with 0 |
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166 | print 'Written:', os.path.join(avpath,'AVAILABLE') |
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167 | fout.close() |
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168 | |
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169 | if __name__ == '__main__': |
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170 | |
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171 | try: |
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172 | start_time = time.time() |
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173 | today = datetime.datetime.now() |
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174 | parser = optparse.OptionParser( |
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175 | formatter=optparse.TitledHelpFormatter(), |
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176 | usage=globals()['__doc__'], |
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177 | version='$Id: 0.001 $') |
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178 | parser.add_option ('-v', '--verbose', action='store_true', |
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179 | default=False, help='verbose output') |
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180 | parser.add_option ('-s', '--startdate', |
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181 | dest='startdate', |
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182 | default='197001', |
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183 | help='YYYYMM integer') |
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184 | parser.add_option ('-e', '--enddate', |
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185 | # setting default as TODAY |
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186 | dest='enddate', |
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187 | default = str(today.year) + str(today.month).zfill(2), |
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188 | #default='200712', |
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189 | help='YYYYMM integer') |
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190 | parser.add_option ('-m', '--model', |
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191 | dest='model', |
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192 | default='ECMWF', help='ECMWF or ERAI or GFS') |
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193 | parser.add_option ('-p', '--path', |
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194 | dest='path', |
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195 | default='.', help='path to be searched. Escape or quote * and ? ') |
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196 | parser.add_option ('-a', '--avpath', |
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197 | dest='avpath', |
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198 | default='.', help='path for AVAILABLE file ') |
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199 | parser.add_option ('-i', '--interval', |
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200 | dest='timeint', |
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201 | default='', help='expected time interval in h. If omitted, show every change') |
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202 | (options, args) = parser.parse_args() |
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203 | #QUERY['modelType'] = options.model |
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204 | #QUERY['start_date'] = options.startdate |
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205 | #QUERY['end_date'] = options.enddate |
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206 | |
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207 | #if len(args) < 1: |
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208 | # parser.error ('missing argument') |
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209 | if options.verbose: print time.asctime() |
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210 | exit_code = main() |
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211 | if exit_code is None: |
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212 | exit_code = 0 |
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213 | if options.verbose: print time.asctime() |
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214 | if options.verbose: print 'TOTAL TIME IN MINUTES:', |
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215 | if options.verbose: print (time.time() - start_time) / 60.0 |
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216 | sys.exit(exit_code) |
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217 | except KeyboardInterrupt, e: # Ctrl-C |
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218 | raise e |
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219 | except SystemExit, e: # sys.exit() |
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220 | raise e |
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221 | except Exception, e: |
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222 | print 'ERROR, UNEXPECTED EXCEPTION' |
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223 | print str(e) |
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224 | traceback.print_exc() |
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225 | os._exit(1) |
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226 | |
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227 | |
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228 | |
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229 | # vim:set sr et ts=4 sw=4 ft=python fenc=utf-8: // See Vim, :help 'modeline' |
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