Scans a directory and returns a list of SODAR files that are corrupt (I.e. averaging the data was not done correctly when outputted)

sdr_file_test.py

import os
import sys

date_tag = 'SDR'

def main():

	if len(sys.argv) < 2:
		print('Usage: sdr_file_test.py sodar/path/dir/')
		sys.exit(-1)
	
	sdr_dir = sys.argv[1]
	
	if not os.path.exists(sdr_dir):
		print('Not a valid directory')
		sys.exit(-1)
	
	sdr_dir_list = os.listdir(sdr_dir)
	
	# Filter files without .sdr extension
	sdr_files = []
	
	for file in sdr_dir_list:
		path = os.path.join(sdr_dir, file)
		file_ext = os.path.splitext(path)[1]
		if file_ext == '.sdr':
			sdr_files.append(path)
		
	# Now we want to go and find some bad files.
	print('Checking directory...')
	bad_files = []
	
	for file in sdr_files:
		with open(file,'r') as f_in:
			data = f_in.readlines()
		f_in.close()
		numLines = len(data)
		print('Checking ' + file)
		for i in range(0,numLines):
			line = data[i]
			tag = line[:3]
			if tag == date_tag:
				try:
					time = int(line[4:16])
					if time % 500 != 0:
						bad_files.append(file + ', line ' + str(i))
						break;
				except: 
					bad_files.append(file + ', Syntax Error')
					break;
				#print(time)
				

	
	if len(bad_files) == 0:
		print('No Bad Files Found')
	else:
		print('Bad Files Found:')
		print('\n'.join(bad_files))

if __name__ == '__main__':
	main()