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#!/usr/bin/python3
import sys
def parse_line(line):
if len(line) < 118:
raise ValueError("bufr table line too short")
return "0" + line[2:7]
def check_file(fname):
is_ok = True
last_bcode = 0
with open(fname, "rb") as fd:
for idx, line in enumerate(fd, start=1):
try:
line = line.decode("utf-8").rstrip()
except UnicodeDecodeError as e:
print("{}:{}:encoding error: {}".format(fname, idx, str(e)), file=sys.stderr)
is_ok = False
continue
try:
bcode = parse_line(line)
int_bcode = int(bcode)
except ValueError as e:
print("{}:{}:{}".format(fname, idx, str(e)), file=sys.stderr)
is_ok = False
continue
if int_bcode <= last_bcode:
print("{}:{}:B code {} is not greater than the B code in the previous line".format(fname, idx, bcode), file=sys.stderr)
is_ok = False
continue
else:
last_bcode = int_bcode
return is_ok
def main():
import argparse
parser = argparse.ArgumentParser(description="Validate BUFR table files")
parser.add_argument('files', nargs='+', help='input file(s) to validate')
args = parser.parse_args()
all_ok = all([check_file(x) for x in args.files])
sys.exit(0 if all_ok else 1)
if __name__ == "__main__":
main()
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